Manual CDS1

Civil Design & Survey

Tutorial Manual

from F o r e s i g h t S o f t w a r e

CDS/TRPS Version 1.02 Example 1A Page - 1

Introduction

The purpose of this tutorial is to introduce you to the look and feel of

CDS/TRPS

You will learn how to

Open jobs.

Zoom the display.

Pan the display.

Use modes and layers (and their function keys) to control what is

displayed on the active screen.

Use a Query to find or alter the attributes of a point.

Use the join hotkey to find the bearing, distance and grade between

any two points.

Open multiple windows to allow different views of a job.

Display different jobs at the one time.

Before starting, you need to have installed the Tutorial Data from the

CDS/TRPS Tutorial Disk supplied, so if you havent already done so,

please install the data now by inserting the disk and using the Run command

from Windows to activate A:\setup.

Note: It is not the intention of these tutorials to provide

you with basic instruction in how to use Windows. If

you do not already have a basic knowledge of how to

use Windows to do the everyday things like; start

programs, open folders, select files, minimize and

maximize sessions, set up printers and print then it is

reasonably pointless in trying to complete these

tutorials.

Please save yourself time and frustration by first

undertaking some basic training so you are

comfortable with the basic functions provided by your

operating system before you attempt to undertake these

tutorials.

Once you are ready to proceed, select the Start button, then select Programs

to display the list of programs available on your computer.

Example 1A CDS/TRPS Version 1.02

Select Foresight CDS/TRPS from that list, and a screen will appear as seen

below.

Now select File from the

menu followed by Open.

The tutorial data has been

stored in a folder named

Foresite\Tutor so you

need to use Windows to

open that folder for you.

You will see that the

program is suggesting that

you Look In a folder named

Program.

Click on the folder with an up arrow, to indicate you wish to look at a higher

level folder, and you will see the main Foresite Folder displayed with the

other folders below it. Select the Tutor folder.

Once the folder is open the screen similar to that seen below. (Depending on

the version of this document, there may be more, less or different files listed

in the folder, so dont worry if the screen is not 100% identical).

In Foresight terms, the most important file in any job is the database where

all the points are stored, so you will see a list of all the databases in the

folder. Note that to

maintain compatibility

with earlier versions, the 3

character Job ID is

retained at this stage, but

later releases of the

software will move to the

long filenames allowed

by the latest Windows

versions.

As you select these db

files with a single click of

your cursor, you will see details about the job listed in the relevant

descriptive fields, allowing easy identification.


The Job, or Database that we are interested in is job 970, so highlight the

file called db.970. The descriptions should indicate that it is data for

Example 1A, so double click db.970 and the screen should appear as

below.

Please note that

the points in the

job are not

meant to

represent

anything like the

jobs you will

encounter in

daily practice,

but are merely an

invented set of

points designed

to spell out

TRPS, and to be

used in this

Tutorial.

So, if you use your imagination, and can make out the letters of TRPS on

your screen we are off to a good start, so lets explore what functions are

available.

Firstly, if you look from the top of the screen, you will see the second line is

the Menu list that contains the various drop down menus you will learn to

use to complete your tasks.

Below the menu list is a row containing a number of icons, and these icons

can be used to give you quick access to commonly used functions.

If you run your cursor slowly over the icons, a window will appear on the

end of your cursor arrow telling you what each icon accesses, so take a few

moments now to position your cursor over each icon in turn to get the idea

of what they do.

The first function we will explore is the Zoom function which allows you to

control the size of the job, or more correctly, how much of your current job

is displayed on the screen at any given time.


Zoom To access the Zoom function you can

1. Select the Icon showing a magnifying glass over the corner of a

screen , or

2. Press the Z key on the keyboard.

Once you either select the icon or press z you are in Zoom Mode, and

more particularly, you are in Zoom Window mode, and your cursor will

have changed to a magnifying glass.

The program is now waiting for you to place a Window around the area you

are interested in.

To do this move your cursor to where you want one corner of the window to

be, and hold down the select button (normally the left one) on your mouse.

With the button held down, move the mouse to drag the window until it

envelopes the area you wish to see at a larger scale.

For example, in the screen below left you see a window around the T and

R in this job, and in the screen on the right you see the screen which is

presented once the button is released.

Please note that the program takes the dimension of

the window you specify and then expands that in

whatever direction necessary to fit the active window.

In this case, the vertical dimension of the window shown has been used to

fill the screen, and there is room in the horizontal direction to also display

the points in the letter R as well.


Dont be confused by those programs that allow you to put a window around

something, and then only display the contents of the window on the screen,

that is not the intention here.

The other function currently available within zoom is to reverse the effects

of the Zoom Window, and to again display the whole job in the active

window.

To achieve this you wish to Zoom Extents, so when you activate Zoom

(either from the icon, or pressing Z) immediately press the E key to

indicate Extents are required, and the screen will be redrawn to show all the

points in the job within the active window.

You can also enlarge the size of the job, or zoom in with

the + icon, or you can reduce the size of the job, or zoom

out with the - icon, and you should try them to see what

they can achieve for you.

Pan the Display. As well as Zooming, it is useful if you can also Pan, which means to move

the existing window over the underlying data. To Pan, you can either;

- Press the P key, or

- Select the Icon with 4 arrow head on the toolbar (seen above).

When you enter Pan mode, the cursor will change to be a cross bearing 4

arrow heads as seen above.

All you need to do to Pan is to put the cursor near the point you wish to

move, press the left mouse button, and hold it down while you drag the

cursor to where you would like the point to be.


For example, in the screen below left we have positioned the cursor near

Point 12 in the R, then dragged across to near the left hand border, and

down a little from horizontal. You will see a line drawn to show where the

item will move.

When you release the mouse button the screen will be redrawn in its new

location, as seen in the screen shown below right.

Now that you know how to control the extent of the data which is displayed,

next you need to consider how you can control what is shown on that

display at any point in time as far as the attributes of the points, strings,

contours and triangles are concerned.

The combined effects of the Modes and Layers functions control the

Display, and first we will consider Modes.

Modes - Display

You may access the Modes function by selecting its icon, or by pressing the

F9 function key.

The modes icon is the one to the right of the Zoom icon and it represents a

screen display controlling how the job will appear.

When you select the Modes Icon, or press the F9 function key, the screen on

top of the next page will appear.

If you look at the first two options available, you will see that the Display

can either be controlled by Layers, or by Modes, and while the program

gives default control to the layers, there are times when your data is not


conveniently arranged in layers, so it is important that you know how to take

control over what is displayed.

To give you an example of what you can do, click the radio button adjacent

to Modes to indicate that you wish to use the Modes function to control the

display.

Next select the ON button adjacent to heights to indicate that you want the

heights of all the points displayed.

Now select OK at the bottom of the screen.

The screen will now

appear as at right, and

you should notice that

heights of all the

points are now

displayed rather than

the point numbers, and

the text is now all the

same colour.

If you wish, you can

again call up the

Modes screen and turn

Point codes ON.


Alternatively, you can also use the function keys which were established in

previous versions of Foresight to turn various attributes On/Off.

The Function Keys and their attributes are as follows.

F1 Help F2 Point Numbers

F3 Strings F4 String Names

F5 Heights F6 Codes

F7 Contours F8 Triangle Model

F9 Modes Screen F10 Layers Screen

F11 Points (dots)

Please note that there are a limited number of function keys available, and

they have been assigned to the most commonly displayed items.

If you wish to display Description, Layer Names, Road Number, Chainage

or Offset there is no function key available so you will need to use the

modes screen to turn these items on or off.

You should also be aware that the Modes function is also designed to

display only one attribute at a time, so you can either have Point Numbers

displayed, or you can have Codes displayed etc, but you cant have some

Point Numbers and some codes. To do that you need to use layers.

You can however use the Select option from the modes screen to limit the

display to a specified range of point rather than all points in the job. But if

you look at the screen you will see there is only one Select range, so the

attribute currently turned on will be displayed for the range of Points you

have specified.

This function was not designed to allow you to display different attributes

for different ranges of points. That ability is handled by layers which we will

now introduce you to.

Before you proceed, please press Z followed by E to display the entire job.


Layers

The Layers icon that is shown at left, can be found to the right of the Modes

Icon, and the layers screen can also be quickly accessed by using the F10

function key.

When you select

layers, a screen

similar to that at

right will appear.

Here you will see

that there are six

different layers in

the current job.

If you do not

assign points to a

particular layer

they will all be

placed on a

default layer of 0.

Before you start tinkering with the screen, remember that the Modes screen

has ultimate control over whether the display takes notice of the Modes or

the Layers parameter screen, and since we have just finished using Modes to

control the display, we need to switch it over.

Select the tab marked Modes - Display and turn on the Layers button.

Then select the Layers tab to bring back the screen above.

To get some idea of the capabilities of this Layers function, we will first turn

layer 0 and layer Centre OFF so they are not displayed.

To do this, position the cursor on the relevant line in the layer table and

select it with the select button on your mouse. The selected layer will be

highlighted and you then pick the relevant option from the selection boxes

below.


Note you can also select a number of layers at the one

time by dragging the mouse over the layers to be

selected, but we will leave you to practice this function

on your own.

Once you have turned 0 and centre OFF, Select layer Are. Then use the

pull down option to choose to display the Height (hgt) for this layer.

Now select layer Pee , use the pull down option and scroll through the list

to assign the code to be displayed.

Next select layer Ess and assign the attribute of desc to display the

description.

If you wish, you can also assign different colours to each of these layers to

make identification or differentiation easier, but though you can see the

difference on the screen, since this tutorial is printed in black and white, the

different colours will not reproduce here.

Once you have made the relevant selections select the OK button and you

should see a display as below.

As well as allowing selection of which attributes are to be displayed, the

layers function allows you to display only those points in which you have a

current interest.


So, for example, call up your layers screen again, turn off all layers except

TEE and PEE, and the screen should appear as below.

Hint: One way to

achieve this with

a minimum of

actions is to

select None On

to turn all layers

off with one

action, and then

select Tee and

turn it on, and

then Select Pee

and turn it on.

The standard

Windows method

of selecting items

using Shift Select for Groups and Control Select for individual items is

applicable in the Layers function.

Query

The next Icon displayed on the menu bar is in the form of a question mark,

and if you have a question about any particular point, or wish to change a

particular point, you can select this icon, or enter ? from the keyboard.

You may type in the number of the point you are interested in, or point to it

with the cursor, and its details will be displayed.

A line will also be drawn from the bottom left hand corner of the window to,

or towards the point to indicate its location.


In addition you can use the Next and Previous buttons to scan forward

and backward through the database.

If you wish to alter the values of a point, you can position the cursor in the

relevant field, and type in the value you require.

The function will NOT allow you to change the point number of a point, but

you can alter any of the other database fields, so please be careful and make

sure you know what you are doing before you start.

If you do change any of the values, once you select the OK button you

will be asked to verify that you wish to save the changes which you have

made, and you must select Yes if you wish the changes to be made

permanent.

Joins

You will often need to know the bearing and distance between two points in

your job, and in CDS/TRPS we call this a Join. ( It is also known as an

Inverse in some areas.

The Join function does not have an icon, and is accessed by pressing the J

key on your keyboard.

This is one of the Hot Keys which you need to remember to make use of

the software easier.


Once you press J, you will

find a Join Dialogue Box

appears as seen in the screen

at right, and the box is

requesting a First Point and

a Second Point.

You may type in the Point

numbers of the relevant

points, or you may select the

points you require by

pointing to them with the

cursor.

To select the point, simply place your cursor (the tip of the arrow) over the

point attribute that is displayed and select it with the left button on the

mouse.

If you select Points 1 and 9,

the bearing and distance

between them will be

displayed as seen at the

bottom of the previous page.

If both points have valid

heights then the percentage

grade between them will

also be displayed. You will

also see a line drawn on the

screen between the points.

Multiple Windows

In some cases it is useful to have two (or more) different views of a

particular job, and this can be easily achieved as shown below, but before

you start, use your Layers function again and turn all the layers On.

First pull down the Window menu from the menu list, and select the New

Window option. You will see a second window appear with your job


displayed in it, and when it appears it is cascaded over the existing

window, partly obscuring the first window.

So you can see the contents of both windows at the on time, CDS/TRPS has

function to allow you to tile the windows, and because jobs are of

different shapes, you have the ability to tile either vertically or horizontally.

If you again pull down the Window menu and select the option to Tile

Vertically, the screen will appear as in the diagram below left, while if you

choose to Tile Horizontally, you screen will resemble the screen below

right.

If you Tile Vertically, and then Zoom a window around the R shape in the

job, you should see a screen as below left.

You should be aware at this

stage that while you can

have two, or more windows

open at any time, only one

window can be active at any

given time.

The active window can be

determined by looking at the

bar along the top of the

window.

One will be coloured, while the other will be greyed out, and the one

which is coloured is the active window.

(Because you can set screen colours to your own taste, we cant predict what

colour the bar will be, but you will see the difference)


If you wish to switch to make the other window active, simply position the

cursor within the window and press your left mouse button. You will see the

coloured bar changes to indicate the new active window.

Any changes which you make as far as Modes or Layers are concerned will

take effect immediately in the active window, but will not become apparent

in the non-active window until it is redrawn.

You can use this feature to give yourself a simultaneous display of two

different attributes of the points on display.

For example, in the screen

at left we have the display

in the right hand window

controlled by Layers, while

in the Left hand window we

have zoomed up the area of

the R and then used

Modes to display the point

numbers of those points in

the active window.

To extend this concept a

little further, if you look at the screen displayed below, you will see four

windows.

To achieve this, you use the

New Window function

three times to create three

new windows, and then use

the Tile Vertical command

to set the four panes in

place.

You then make each

window active in turn, and

while the window is active

use the Zoom command,

and/or the Modes/Layers

function to control what is displayed in each window.


So far we have concentrated on different views of the one job, but you

should be aware that it is also possible to display different jobs at the same

time.

Multiple Jobs on Display To achieve this, open your first job as normal, and then use the File Open

command to open the second job you are interested in. This will

automatically open the second job in a new window that will be overlaid

over your first job.

Then you use the Window menu and either Tile Vertical or Tile Horizontal

depending on the shapes of the respective jobs.

The screen adjacent shows

an example of what can be

achieved with job 970 in the

left window and job DAM

in the right window.

Please Note that just

because the function to open

different jobs is available, it

does NOT mean that you

should use it every time you

come to the computer.

It is a fact of life that if you have two jobs open at the one time, the speed of

processing of each of the jobs is necessarily degraded over the speed

achieved with only one job open, so use the function when you need to, not

just as a matter of course.

This ends the initial general introduction to the look and feel of CDS/TRPS,

and if you are comfortable that you know how to use Windows generally,

and the functions of CDS/TRPS explained in this exercise then you can

commence on the next tutorial example.

If you are not completely comfortable with your ability to work within

Windows, to maximise and minimise windows, to alter the default printer, to

open and close files and windows then please save us, and yourself, a great

deal of heartache and frustration by taking the time to now become

comfortable with these items before you go on.

CDS/TRPS Ver. 1.02 Example 1B Page 1

The purpose of this example is to continue your introduction to the use of

the various facilities in CDS/TRPS, and here in the guise of designing a

mock subdivision you will learn how to;

Create a New Job and Add Points into it.

Calculate points using Bearing and Distance, Bearing and Multiple

Distance, Radiate, Intersection of 2 Bearings and Parallel Offset.

Calculate Curves.

Add Strings, Curved Strings, and Change existing Strings

List out String definitions and Areas.

Start CDS/TRPS from the Programs Menu, or from a Shortcut if you have

taken the trouble to establish one.

In this example, you will learn how to start a Job from scratch, rather than

work on an existing job as you did in the first example.

Creating a New Job

Pull down the File menu, and select New.

You wish to start new Job with an ID of "IN2", and you should store it in

the folder Foresite\Tutor, so make sure the folder is set to that location and

type in a Filename of "db.in2" to replace the db.* which appears.

You may fill in the other descriptive fields if you wish, and a Description

such as Tutorial 1B would be appropriate. Once you have completed all the

fields you wish to use, select the Open button.

Once you save the new job your

screen will appear as seen at left,

and you will see that the new job

has appeared with a blank screen

Now Maximise Job IN2 so it fills

the screen.

At this stage the screen is still blank

Tutorial 1B CDS/TRPS Ver. 1.02

as there are no points in the job, but we will soon rectify that by adding a

start point, and then calculating some points from it.

If you wish you could simply add points into a job by clicking on the screen,

but before you can achieve this you need to be in Add Mode.

Adding Points

If you pull down the Points Menu, you will see the option for Add Points,

and you should select it.

You will notice that your cursor now becomes a cross rather than the arrow

you had previously.

If you watch the Status Bar at the bottom of the screen as you move the

cursor around you will see that the coordinates update as the cursor moves

around the screen.

We wish to Add in Point 1 with coordinates of East 200 and North 300.

You could, if you wanted, move the cursor carefully until those coordinates

were displayed, and then select the point, but it is not very practical to do so.

Instead you can simply position the cursor somewhere near where you want

the point to be and select a point by pressing the Left mouse button.

A dialogue box will appear as seen below, and you should simply type in

values of 200 for East and 300 for North and then Select OK.

Point 1 will now be saved

with exactly those

coordinates.

You now wish to add

another point being Point 2

with coordinates of E 450

and N 500, so repeat the

process and type in the

relevant values.


Note that in this case we have chosen arbitrary coordinate values with

relatively low values, but the process is exactly the same no matter what the

coordinate values you wish to work with.

If the points you enter do not at first appear on the screen simply use the

Zoom Extents function that you learnt in the first example and they should

appear when the screen is redrawn.

Now that we have two base points to work with, we will be calculating other

points rather than adding them, so pull down the Points Menu and turn Off

Add Points by selecting it.

Calculate using Bearing & Distance Now pull down the Cogo Menu and select Bearing & Distance.

A dialogue box will appear as seen at left below.

This box is covering the area where you wish to calculate points, so drag it

to the right hand side of the screen so it appears as seen at right above.

You will see that the cursor is flashing in the field titled From Point, and

here we wish to calculate some points from point 1.

You may either type 1 in the field, or if you prefer, you can select the point

on the screen with your cursor (which you might note is now back to an

arrow since you have left the Add Points mode).

Now you need to enter in a bearing, and here you wish to use a bearing of

1530, so type 15.30 in the bearing field and then press the Tab key to

move to the Distance box.

Enter a distance of 20 metres


You will see that the program is suggesting that the new point should be

number 3, and we are happy with that, so click on the Apply button and you

will see point 3 appear on the screen.

If you look now at the dialogue box, you will see that the From Point has

changed to 3 and the new point has changed to 4 which is what we intend.

Both bearing and distance fields have retained the values you used, so if you

wish to calculate another point along the same bearing at a distance of 20

metres on from point 3 you need only select the Apply button.

In this example, that is exactly what we wish to do, so click on Apply and

you will see Point 4 appear on the screen.

This method is fine if you only have one or two frontages you wish to

calculate, however in this example we need to calculate another 5 points

along the line, and there is a more efficient way to achieve this that by

clicking apply five times.

If you look below the Apply button you will see a check box titled

Multiple.

It is designed to be used where you wish to calculate multiple points along

the same bearing, each the same distance apart which is something which

surveyors need to do regularly when designing subdivision layouts. (and

Engineers do when laying out buildings, footings and the like)

If you select the Multiple box with you cursor a tick will appear, and the

entry field below will become active.

In this example we need another 5 frontages so enter 5 into this field and

then click on Apply.

You will see points up to

point 9 are calculated and

stored.

Now we wish to calculate a

point on the back boundary

of these blocks of land that

we are attempting to set out.


Position your cursor in the Bearing field that should still show 15.3.

You wish to enter a bearing that is at right angles to that bearing, so you can

do the quick sum in your head, or, while the cursor is in the bearing field

you can press the R key.

You will notice that the bearing now reads 105.3 indicating that the function

of the R key is to add 90 to the bearing already shown i.e., to go square

to the Right (There are no prizes for guessing what the key L might do)

Once the bearing is showing 105.3, press the Tab key, or select the Distance

box with your mouse.

The depth of these blocks is to be 35 metres, so type 35 into the Distance

box.

Now, we do not want the Multiple calculations to continue at the moment,

so turn Off the multiple box and then click on the Apply button to position

Point 10.

We now wish to calculate the back corners back down to where we started

which means we have 7 points to calculate.

First, position the cursor in the Bearing box and press R to show a bearing

of 195.3.

Next set the Distance to be 20.

Now turn On Multiple, and enter the number 7 in the Multiple box.

Now select Apply,

and you will see

points 11 through 17

calculated and saved.

Now close down the

Bearing and

Distance box, either

with the Cancel

button, or the X icon.


Now use Zoom (either press Z, or select the magnifying glass icon), and put

a window around this batch of points you have just calculated to get a screen

similar to that at right.

Next we need to add in some lines or Strings to show the boundaries of the

lots we have just created.

Adding Strings Pull down the Strings

Menu and select the Add

option to see the screen

below right.

This is where you add

strings into the job, but

before you get around to

adding, you need to know

about String Folders, and

String Classes.

Some Basic Concepts.

1. Folders You can choose what folder the string will live in.

If you like to think in terms of layers, then folders are simply string

layers.

The important thing to understand is that CDS/TRPS does not insist that

your lines or strings be on the same layer as the points that make them up.

Simply put, we recognise that your field party picks up and lays out Points

rather than lines, but your drafting staff are more used to working with

Lines, and that the points are of lesser importance to them..

If you are of a mind to have the lines live on the point layer, then you can

achieve that very simply by setting the folder name to be the same as the

layer name.

However, the ability to differentiate between points and lines gives you a

considerable degree of flexibility in what you have displayed or printed at

any time.


As an example, consider you were working on a project such as a

subdivision that is to be built in stages. It is conceivable that you might wish

to place all the Points representing corners of the blocks onto a layer called

Corner for example.

If all the strings or lines were placed on the one layer called corners, it

would be difficult to simply look at the blocks in Stage 3.

However, if you use folders named Stage1, Stage2 and Stage3 for storing

the relevant strings, it now becomes a simple matter to only display the

blocks in Stage 3 by turning that folder ON and all the other folders off.

If you wish to place the string in an existing folder you can use the pull

down option to see the existing folder names, and select the one that suits

your purposes.

If you wish to create a new folder, simply type the name of the folder into

the space provided. Note for the time being please restrict Folder names to

8 characters or less.

2. Classes As well as the folder, the Class attribute gives you an additional means of

grouping strings of the same type together and then easily determining how

all members of that class will be displayed/printed.

As an example of some uses of this facility, consider a subdivision that

contains lots of different sizes as laid down under zoning guidelines.

Say for example you had normal size lots, super lots and other lots to be

used as parks.

If you assigned the relevant strings around the boundaries of these lots to

classes, you could then easily have all Super lots filled in and coloured

red, all Normal lots filled in blue, and the Park lots coloured in green.

In addition, you might choose to put all the centrelines of the roads within

the subdivision into a class called CL. You could then decide that all

strings in the class CL should be drawn with Chainages plotted along them

at the half angle offset to the sting


3. Why have both Folders and Classes? Simply to give you greater flexibility in how your job is controlled. If we

continue the Staged development analogy from the Folders, the Class is the

overriding attribute that determines how all strings in a particular class will

be shown.

The Folder can then be used to determine which strings belonging to a

particular class will be displayed or printed at any given time.

4. The String ID You need to give each string a name, or a number, or, in Foresight

terminology an ID.

The string ID can be any combination of the letters A through Z and the

numbers 0 through 9, and we strongly recommend that you so not include

any characters other than these in string names.

It is possible to have more than one string with the same ID in a job.

Back into Action In the Field entitled Folder, you should see the name lots. You should be

aware that you can store the string definitions in any folder you choose, but

the default name of lots will be fine for this example, so ignore the folder

field for the moment and concentrate on the String ID field.

You MUST give each string you enter an ID which can be either a name, or

a number, or a combination of the two.

Here we are creating lots, or parcels of land and traditionally these are

numbered, so lets start with and ID of Lot 1. Type Lot 1 into the field.

At this stage, we are not too concerned with Classes, so simply leave the

default Class of 0.

Likewise, we do not yet have a Deposited Plan, so leave that number blank.

Again, we are not too worried about Pens or Linetypes at this stage, so skip

over them and focus on the entry window.

All that is required is that you enter each of the point numbers that make up

the string.

You may type in the numbers if you wish, and if you choose to do so you

should separate each two numbers with a comma.


Alternatively, you can point to the points you require with the cursor.

In this case, the string with an ID of Lot 1 is made up of numbers

1,3,16,17,1 so you should enter them into the entry window.

You will note that the start point (i.e. 1) has been entered again as the end

point in this string and this forms what we term a closed string.

If you wish to be able to determine the area enclosed by a string, you must

use a closed string.

Once the numbers are entered or picked from the screen, the string will be

drawn on the screen for you to see, and as you enter each new number the

next segment of the string will be drawn.

The screen should appear

as at right.

If, as it should, your

strings appears to

represent sensible

boundaries of Lot 1 you

can select the Apply

button and the string will

be stored away.

The cursor will then

switch back into the String ID field waiting for you to enter another String.

If you now attempt to add in Lot 2, the dialogue box may be in your way, so

simply drag the dialogue box across to the right hand side of the screen

before you enter in Lot 2 which is made up of Points 3,4,15,16,3.

We leave it to you to continue adding in the definitions for the strings up to

Lot 7.

Now, having done all this fine work, we suddenly realise that there is a small

problem back at Lot 1.

This is actually a corner lot, and the local council requires that all corner

lots have a splayed (or truncated) corner, which we forgot to include.


So, first we need to calculate the points that define the splay or truncation,

and then we will need to change the string definition.

Radiate To calculate the splay points you should use the Radiate option from the

Cogo menu, so pull own Cogo, and select Radiate.

The From Point should be 1 which you can either point to with the cursor, or

type in from the keyboard.

The first bearing is 1530 for a distance of 3.5 metres to calculate Point 18.

Now you will notice with radiate that the From Point will remain at Point

1 rather than leaping to the last point calculated as in the Bearing &

Distance routine we used earlier.

Position the cursor in the Bearing field, and press the R key to swing the

existing bearing 90 to the right.

Now select Apply and you will see Point 19 calculated.

Now close Radiate.

Change a String. Next you need to change the existing definition of the string with the ID of

Lot 1.

Pull down the Strings Menu and select Change.

The dialogue box will appear waiting for you to identify the string you wish

to change.

You may pull down the list of String IDs if you wish, and select Lot 1 from

there.

Alternatively you may select it by Pointing with your cursor to the string you

want.

If you do wish to point, it is important that you point to a unique part of the

string.


For instance, here if you wish to point to one of the side boundaries, you

would point to the line between points 1 and 17 rather than the line between

point 3 and 16 because this line 3-16 is also part of Lot 2, and so by

definition is not unique to Lot 1.

Once you have identified the string, the numbers 1,3,16,17,1 will appear and

you should position your cursor in this field and alter the numbers to read

19,18,3,16,17,19.

Then press the Show button to ensure you have specified it correctly,

followed by OK to save the new definition of Lot 1.

At this stage your

screen should

look like the one

at right.

Now, the

mysterious Point

2, which has been

lurking up in the

top right hand

corner of the

screen will come

into play.

Point 2 is

actually a point

on the boundary of an existing road that runs East-West, and our next step is

to determine where that boundary will intersect with the frontage of the Lots

we have defined so far.

To do this we can use the intersection of two known bearings.

Intersect Two Bearings. Pull Down the Cogo Menu and select the option titled Intersect Bearing &

Distance, and then select the item titled 2 Bearing Intersection.

A dialogue box will appear as seen in the screen below.

Now you need to fill in the relevant values, and Tab between the fields as

you complete each one


Point 1 is in fact 1, and the bearing is 1530.

Point 2 in this

case is 2, and the

bearing from

there is 270.

20 is fine for the

New Point.

If you wish to see

what will result

from these

figures without

actually creating

the point you can

press the Show

button.

As you can see the program will draw two lines to indicate the bearings you

have entered, and to indicate where the new point will appear.

As long as this looks OK you can press the Apply button and point 20 will

be stored at the intersection of the two boundaries.

At this point it is wise to be on the safe side and do a quick check to find out

how much we have left between Point 9 and Point 20 before we go off

blindly creating more blocks.

Join Press the J key to

instigate a Join. Enter the

points 9 and 20

respectively and calculate

as seen in the screen at

right.

As well as noting the

distance, it is very

important that you get in


the habit of checking that the bearing is also correct, and here it should be at

1530.

Keep in mind as you are calculating that it is relatively easy to hit a wrong

key, and for example if you had inadvertently keyed 15.50 for the bearing

when you created point 20, you wouldnt see the difference visually.

If you develop the habit of checking often, you wont find yourself in a mess

later on trying to unravel where you actually made the error.

While in this mode it would be worthwhile to check the join between 20 and

2 which should give a bearing of 90 and a distance of 194.535.

Enough of the checking and back on with the calculations.

Now with a distance of 67.5 metres left to the corner, it should be

reasonably clear that you can either get 3 full blocks and a funny little bit,

or two blocks with the possibility of something decent left on the corner.

Before we go much further, we need to see where we can get a full depth

block off both the street running North-South and the street running East

West, and we can determine this by using an offset of 35 parallel to both

streets.

Parallel Offset Calculation Pull down the Cogo menu, select the item entitled Offset Calcs, and then

select the Parallel Offset option.

A dialogue box will appear as seen in the screen below, and the values are

as follows.

First Point 9

First bearing 15.3

First Offset 35

Second point 20

Second Brg 90

Second Offset 35

Enter in these values,

using Tab or the mouse to

move between the fields,

and then select the Apply


button you will find Point 21 calculated.

Back in Check mode again, you should press J to do a join between 21 and

10, and you should get a bearing of 19530, and a distance of 40.934.

If that is correct we shall proceed, and at this stage we have decided

(whether rightly or wrongly) to leave a local park on the corner of these

streets, so to determine the two side boundary points of the park, you need

to use the Intersection of Two Bearings twice;

- to get 22, intersect a bearing of 0 through 21 with a bearing of 90 through

20

- to get 23, intersect a bearing of 1530 through 9 with a bearing of 28530

through 21

Now, since this is going to be a park, it might be decorative if we construct a

curved boundary at the corner.

Calculating a Curve Pull Down the Cogo Menu and select Curves followed by IP & Radius.

Note that if it overlaps your points you can Drag the Dialog box over to the

right hand side of the screen so it is out of the way.

Your IP Point is 20.

The incoming Bearing is

1530 and the Outgoing

Bearing is 90

Once you have entered the

two bearings the Deflection

Angle will be calculated.

Note: For the moment

please dont be alarmed if

occasionally an angle or bearing displays as 89.5960 instead of the 90 it is

meant to be - it is still calculating correctly, but there is something strange in

how things are displayed - we will track it down and eradicate it, but until

we do it does not affect the accuracy of the calculations.


If you now position your cursor in the Radius field and enter a radius of 25,

then press the Tab key, you will see all the other fields filled in with the

relevant values.

You may, if you wish, alter any of the other values and the radius will

change accordingly.

Basically, once you have fixed the deflection angle, you can fix one other

parameter, and the curve will then be calculated for you.

So, for example in this case if we wanted to have a tangent length of 12

metres, we would end up with a radius of 15.781

Here we will set a radius of 15 metres and accept the tangent of 11.406 that

results.

If you wish, you can

select the Show button

to get a preview of how

the curve will fit, and

then select the Apply

button to store away the

two tangent points and

the centre point of the

curve.

Once the points have

been stored, select the

Cancel button to close down the curve calculator.

Adding a Curved String Now that we have calculated all the points for the park, it is time to define

its boundary as a string.

Pull down the Strings Menu and Select Add. (If necessary, you can drag the

dialog box to the right to clear the area you are interested in.

Use the Folder Lots and use an ID of Park.

Enter a Class of Park.


You have learnt earlier in this exercise how to define Strings, so the only

difference here is that the string has a curve in it.

To define a curve, you enter a tangent point, the centre point preceded by a

+ or a - sign depending on whether the curve is;

Right handed or clockwise about the centre ( + ), or,

left handed or anti-clockwise about the centre ( - ).

It is also recommended that you do not start defining a string on a curve

tangent point.

So here the points you need are 23, 24,+25, 26, 22,21,23.

Note you can pick all points except the centre point with the cursor if you

wish, but we recommend you type in the centre point complete with its sign.

At the end of this process

you might use the Show

button to check what you

have, and it should look

similar to the screen at right.

We are now left with the

decision of what to do with

the area between Lot 7 and

the corner park, and it

seems a reasonable spot for

a small commercial

development so we might leave this area as one large block.

Use the techniques you have learnt to Add in a String called Shops with a

Class or Retail defined by points 9,23,21,10,9.

Listing Strings and Areas. It is often necessary to have a list of the various strings you have defined,

and since the strings here define boundaries of parcels of land, it is also

useful to have a record of the areas of each of the parcels.

To do this we first need to select the strings we are interested in, and then

list them, so pull down the Strings Menu and highlight the Select Option.


You will see that there are a number of methods of selecting the strings you

require, and for this exercise we will show you how to use the Range facility

to select.

If you pick Select a Range, the screen will appear as seen below

You will see that each of

the folders in the job is

listed. If you wish to

simply select all of the

strings in a particular

folder you can tick the

box adjacent to the name

of the folder.

If you wish to see what

strings are in a particular

folder, you can select the

plus box to the left of

the folder name, and this will expand the display to show a view of all the

string sin that folder, as seen below.

You can simply pick which strings you wish to list with your cursor, or if

you wish to list a whole folder you just pick the folder name.

Once you have selected the strings you require, pick OK.

Next pull down the Strings menu again, and now pick Listings.

You will then be asked which type of listing you require, and a Full Listing

is normal for presentation, so check that button.

Next you will see the Wordpad (in Win95 or NT) program open a window,

and the listing will be presented.

You can use the Wordpad facilities to change fonts etc if you wish, and once

you are happy with the format you should Save the document.

Note: to maintain compatibility with Win3.11 the report is written in

Windows Write format, and while Wordpad knows how to read it, it cannot

save a document in this particular format, so accept its suggestion of using

another format, and either save the document as Text, or a Word document

depending on your own needs.


A text format will give you a report that can be easily inserted into drawings

with Autocad or other CAD packages.

The format of the listing can be seen from the sample below.

JOB NAME: C:\CDS\in2 Date: 12/06/1997 POINT BEARING DISTANCE EASTING NORTHING _________________________________________________________________________

Folder: lots String ID: Lot 2 3 15~29'59" 20.000 205.345 319.273 4 105~29'59" 35.000 210.690 338.545 15 195~29'59" 20.000 244.417 329.192 16 285~29'59" 35.000 239.072 309.919 3 205.345 319.273 PERIMETER 110.001 m. AREA is 700.000 m. sq

Folder: lots String ID: Lot 3 4 15~29'59" 20.000 210.690 338.545 5 105~29'59" 35.000 216.034 357.818 14 195~29'59" 20.000 249.762 348.464 15 285~29'59" 35.000 244.417 329.192 4 210.690 338.545 PERIMETER 110.000 m. AREA is 700.000 m. sq

Folder: lots String ID: Lot 1 18 15~29'59" 16.500 200.935 303.373 3 105~29'59" 35.000 205.345 319.273 16 195~29'59" 20.000 239.072 309.919 17 285~29'59" 31.500 233.727 290.647 19 330~29'59" 4.950 203.373 299.065 18 200.935 303.373 PERIMETER 107.950 m. AREA is 693.882 m. sq

Folder: lots String ID: Park 23 15~30'00" 15.209 248.352 474.353 24 105~30'04" 15.000 252.417 489.009 + 25 0~00'00" 15.000 266.871 485.000 26 89~59'59" 15.209 266.871 500.000 22 180~00'00" 35.000 282.080 500.000 21 285~29'59" 35.000 282.080 465.000 23 248.352 474.353 PERIMETER 119.921 m. AREA is 906.699 m. sq

CDS/TRPS Ver 1.02 Tutorial 1C Page - 1

Still More Introduction

In this third tutorial introducing you to the methodology and features of

CDS/TRPS you will learn how to.

Select Points.

Alter the Selected Points.

Copy Points from One Job to another.

Select Strings.

Copy Strings from one job to another.

Select Strings and their points together.

In order to maintain consistency with the "windows way" of doing things,

CDS/TRPS introduces the concept of "Selecting" items, and then changing

the selected items.

In our case the "items" we are interested in selecting are Points and Strings,

and they can either be are selected independently of one another, or you an

select some strings, and then select the points contained in those strings.

Before you commence this tutorial, it is important that you are familiar with

the Windows operations of Cut, Copy and Paste, and that you understand

the concept of the Windows Clipboard. We are not attempting to teach these

concepts here, merely how they can be applied to your surveying

calculations, so if you are not already familiar with them please take the

time now to go back to your Windows manual and read up on what they do.

We will start the introduction by showing you how to work with points.

Start CDS/TRPS, and make sure that Job IN2 is current, and is zoomed to

its extents and maximised in the display.

You have had a preliminary discussion with your local town planner who

has said that the park on the corner looks fine, but he would prefer to see an

alternative layout of blocks where the commercial area is moved further

down towards Lot 1.

What we propose to do here is to take all the points which make up the area

Tutorial 1C CDS/TRPS Ver 1.02

of the Park, alter them to put them on a layer of their own, and copy them to

a new job where we can try a new arrangement to suit the aesthetic

enjoyment of the planner.

If you pull down the Points menu and highlight the option titled Select, you

will see a series of options presented as seen below.

You should note that

there are eight options

beginning with

Transform and

extending down to

Delete which are

'greyed out' indicating

they are not available.

This is because these

options only become

active once some

points have been

selected.

Select Points by Polygon Here we wish to select the points by Polygon, so select that particular option

with your mouse.

Now the idea is to construct a polygon that encloses all the points in the

park.

There are many and varied ways you can draw the polygon, but for those of

you who are not adventurous, you should start by positioning your cursor to

the left of, and below Point 23, and pressing the left mouse button.

Now move your cursor up until it is above and to the left of Point 20, and

again press the left mouse button.

You will note that a line is drawn following your cursor as you move it, and

when you pick a point with your left mouse button it 'anchors' that particular

corner of the polygon you are creating.

Now move your cursor across until it is to the right of Point 22, and you will


see a 'triangle' drawn as the polygon you are creating follows your cursor.

Pick a point

somewhere in this

region, and then move

the cursor down until it

is below and to the

right of Point 21 and

your polygon

completely encloses

the area of the park.

Pick the point with the

left mouse button, and

then press the Enter key to end the creation of the Polygon.

You will see the points

will now change

colour, indicating that

they are "selected".

At this stage, we wish

to "alter" all the points

selected to put them on

a layer called "park".

Pull down the Points

menu, and this time

you should notice that since we have selected some points, all the options

except for Paste are now available.

(Paste only becomes available when there are some Points already on the

clipboard.)

Altering points. Select the option titled Alter and a popup window will appear as seen on the

next page.

This gives you the option of adding a constant to the "coordinate type"

values of the points, and replacing the "text type" values with another value.


Here we wish to

assign all the

selected points to the

layer called "park" ,

so position the

cursor in the Layer

field and type in

'park' and then select

OK.

As well as the points

already selected, we

wish to take Points 1

and 2 with us so we know where the roads are to be.

Selecting Individual Points. Pull down the points menu again, go to Select and pick Single Selection.

You will now notice that your cursor has changed from the pointing arrow to

a "crosshair".

Position this crosshair over Point 2 and press the left mouse button. You will

see Point 2 change colour to indicate that it is now selected.

In this regard, the operation of selecting items is slightly different in

CDS/TRPS to what you would have experienced in some other windows

programs.

For example in spreadsheets and the like, if you select Item 1, and then

select Item 2, Item 1 will be unselected, and you need to hold down either

the Shift or Ctrl key while selecting the second item is you wish them both

to remain selected.

In CDS/TRPS, we have decided to vary slightly from the 'standard' method

of selection so you don't need to remember about holding down various keys

while you do things, and the selection mode is cumulative in that anything

selected is added to the group of things already selected.

Put simply, in CDS/TRPS once something is selected it stays selected until

you clear that selection. And if you first select Item 1 (being either a single


point, or a group of points within a polygon) and then select Item 2, both

items will be selected.

We also wish to

select Point 1, but

you will need to

Zoom up on that area

to see it.

Press the Z key (or

use the Zoom Icon),

and put a window

around the bottom

left hand corner of

the Job where Point

1 lives.

Then select it with your crosshair and see it change colour.

Now Zoom Extents again, and you should see Points 1 and 2 as well as the

points in the park shown in a different colour to the remainder of the points

in the job.

Copying the Points. Once the points you require are selected, you can Copy them to the

Clipboard.

You can either pull down the Points menu and select Copy, or you can use

the "Copy Icon" on the Toolbar, or you can even use the "Ctrl C" shortcut

by holding down the Ctrl key while pressing C.

The Points and their coordinates are then copied on to the clipboard.

Note that they are not deleted from the original job, rather as the name

implies, a copy of them is made.

Note : even though they are on the clipboard, they are in Foresight format,

so you can't go off and paste them into your word processor, but you can

paste them into another Job in CDS/TRPS which is what we wish to

achieve.


Pull down the File menu, and select New.

You wish to create a

new job called IN3 in

the Folder CDS/TRPS,

so your screen should be

similar to that shown at

right.

Once you select the

Open button you will be

presented with a new

blank screen which is

the new job with no data

as yet.

Paste Points. To get the points into it you need to use the Paste function.

If you pull down the Points menu you will see that the paste option is

available because there is data on the clipboard.

If you select Paste, the

points will now be

placed into Job IN3,

and if you then Zoom

Extents, you should

see a screen like that at

right.

At the moment the Job

IN3 is maximised so

you can't see Job IN2

which is also still

open.

Select the Tile window button to bring the job back into a normal sized

window, and you will see Job IN3 overlaid on top of Job IN2.

Now pull down the Windows menu and select Tile Vertically and your


screen should appear as below.

For our next step we

need to copy across

the String "Park"

from Job IN2 to Job

IN3.

You will see at this

stage that Job IN3 is

current, and you

should Position your

cursor inside the

window of Job IN2

and press the left

mouse button to

bring it to be current.

You will notice that the Points we have copied are still selected, and since

we have no need for this any longer you should pull down the Points menu,

bring up the Select options, and choose Clear Selection.

Selecting Strings. The methodology of selecting strings is the same as you have already learnt

for selecting points, with only some slight changes due to the difference

between points and strings.

If you pull down the Strings menu, and then highlight Select, you will see

similar options to those in Points.

In this instance, you could use the Single String option and put the crosshair

over one of the boundaries of the Park, but since the function of these

tutorials is to teach you how to use various options, we will use Select by

Range.

When you choose this option, a popup window will appear as seen in the

screen below.

This will provide a "tree diagram" showing all the string folders in the Job.

If you wish to see the strings within each folder, you need to click on the


small box containing a

plus sign to the left of

the folder name.

If you click on the box

adjacent to the folder

named lots the

screen should appear

as seen at right, with

an expanded list of

strings.

In this instance, we

only need to pick one string so using range is overkill, but it does alert you

to the capabilities of the option, and that is the aim of the exercise.

If you wish to select a particular string, you simply select the "Check Box"

adjacent to its name, and a tick will appear indicating it is selected.

If, as a later stage you wished to select all the strings in a particular folder,

you could achieve this by checking the box adjacent to the folder name.

Here you should check the box adjacent to "Park" as seen in the screen

above, and then select OK to return to the screen.

You will see the string

"park" highlighted as

seen in the screen at

right.

Next you should Copy

the string to the

clipboard using either

the Copy Icon, or by

pulling down the

Strings menu and

select the Copy option.

Now position your cursor in the window of Job IN3 and press the left mouse

button to make the window current.

You should notice that all the points are still shown as "Selected" , and since


this is of no further use to us, you should pull down the Points menu,

highlight Select, and choose Clear Selection.

Then you should Paste the string with either the Paste Icon or by pulling

down the Strings menu and selecting the Paste option.

A window will appear suggesting that you Change String Folder and offer

the default folder of Lots which you should select in this case.

The string will now appear as seen below (in the left pane).

In this example, you have so far learnt some of the methods of selecting

points and strings independently of one another which you often need to do.

You also often wish to select some strings, and the points contained in them,

and CDS has a simplified method of achieving this.

Select Strings and Points together. If you click in Job IN2 to make it the active job, you will see that the string

Park is still selected.

If you now go to the Points menu and highlight Select, you will see that the

option Select by Selected Strings is now available.

If you select that option, you will see the points which make up the park will


now be selected.

You can now copy and paste these points as shown above.

Now that you have finished these first 3 Tutorials, you should be

comfortable with the general look & feel of CDS/TRPS.

You should be confident that you can

Open Exisitng Jobs

Zoom and Pan the Display

Use Modes & Layers to control what is displayed

Understand the Interaction between Modes & Layers

Create New Jobs

Add Points

Calculate Points

Define Strings

Select & Copy Points and Strings

If you are not completely confident of your ability to achieve any of the

things listed above, please save us both a lot of time and frustration by going

back and revising the things you are unsure of before you proceed to the

next tutorial.

CDS/TRPS Ver 1.02 Tutorial 1D Page - 1

Tutorial 1D

In this tutorial you will learn how to

assign strings to classes

use classes to plot solid colours in closed strings

use classes to specify which attributes are plotted on strings

use classes to hatch closed strings.

Open Job db.cl1 in your Tutor directory and maximise the screen.

The screen should appear as

shown. If it does not, try

Zoom Extents to get the view

you need.

To show you the first glimpse

of what you can achieve, we

have already allocated some of

the parcels into particular

classes of strings.

Pull down the Strings menu and

select String Attributes.


seen at right.

You will see here that we have

three classes named 0, villas

and small respectively.

Dont be too concerned about

where the names came from, as

the names themselves are

random and of little

importance.

Tutorial 1D CDS/TRPS Ver. 1.02

Applying Solid Fills

As a first example of what you can do, select the Fill Button on the line which

deals with the villas class, and you will see the box is then crossed to indicate that

you want these strings to be filled in with a solid colour . You can also hatch, but

that will be covered later.

At this stage we will settle for

a colour, so click on the solid

black bar to bring up the

palette of available colours.

Pick one of the green colours

which takes your fancy and

then click OK.

The screen will return and

you will see the Fill Colour of

your choice is now shown,

and the screen will appear as

seen at right.

If you now select OK, you

will return to the screen that

should now appear similar to

that at right. However, I hope

you can see the colour of your

choice rather than the grey or

black blobs printed in this

screen dump.

Obviously you could do the

same thing to apply different

colours to the other classes,

but we have other things in

store.


Specifying String Attributes to be Displayed

As well as allowing you to control what colour your parcels are filled with, the

class table also allows you to set the String parameters for each class.

Select the Strings menu and again select String Attributes.

This time with Class Name 0 highlighted, move your cursor down and turn ON

String IDs by clicking in the box.

You can also set the colour of the pen and the size and font that the IDs will be

drawn in by selecting the Change button

The Size of the font is particularly important if you wish to be able to see things on

the screen, and you need to realise that these attributes will be displayed on the

screen at the same relative size that they will be plotted at.

While we dont actually scale the screen to the particular plot scale, the String IDs,

bearings distances and the like are all drawn at a size which shows you how they

will appear relative to the plot at the scale selected on the Plot Parameters

Screen.

Perhaps it might be clearer

if I demonstrate rather than

describe.

Select the Change button,

and set Arial font in Black

at a size of 18 Points.


seen at right.

Now press OK to return to

the job which should appear

as seen on top of the next page.


If you look closely, you will

see some indication of

figures in the middle of

some of the parcels where

you would expect to see a

Lot Number (or indeed a

String ID as we call them).

Now pull down the File

menu, select Plot

parameters, and set the scale

to be 1:1000. Then press

OK.

The screen will now appear as below, and you should be able to make out some Lot

numbers and some other String IDs. (at least on the screen, if not on the screen

dump)

Obviously since we have

doubled the scale of the

drawing, we have

effectively halved the size

of each parcel.

But the font size has

remained constant so it will

appear to be twice the size it

was previously

Clear isnt it.?? Dont

worry if it doesnt lock in immediately, just give it time and think it through and the

light will come on.

And it is important that the light is on, because this relativity will apply to all the

attributes of either points or strings which you choose to plot onto your plans.

You can also play with turning on various combinations of the other available

attributes needed to produce the various plan types you encounter.


A Note about Font Sizes.

Traditionally surveyors and engineers have specified text heights in millimetres, but

with Windows you need to specify in Point sizes.

In order to be able to convert, I should tell you that 72 points is equal to one inch,

or 25.4 millimetres.

So, by a process of simple arithmetic we find that 10 points is near enough to 3.5

millimetres.

Or to put it another way, if you multiply the Point size by 0.35 you will arrive at the

size of the text in millimetres.

Different Classes with Different Attributes

Return to the String Attributes table and this time highlight the Class Name

SMALL.

Select the Fill box, and pull down and choose a Red colour.

Then move down and Select

the Distances box, and use

Change to set a Size of 14

(which should be about 4.9

millimetres).

When you select OK and

return to the screen it should

appear as below.

Here you will have the

following Classes and

attributes

Class 0 not filled and display String IDs

Class villas filled in green with no attribute displayed

Class SMALL filled in red with distances displayed.


Using Class to Show Road Centreline

If you look now at the two Road Centrelines in the job, you will see that they still

belong to Class 0, which is the default class all strings have, unless you specify

otherwise.

It is common on engineering plans to show these centrelines with the chainages of

the points displayed at the half-angle, and you can achieve this as follows.

First you need to put the strings into a class of their own.

Pull down the Strings menu, highlight Select, and then choose Single String

Selection.

You will see your cursor now changes to the string selection crosshair.

Select each of the centrelines shown by clicking on part of the line.

NB. for the moment please make sure you only try and select on a straight part of

the line pointing to the arc is not yet functional.

Once the strings have been selected, pull down the Strings menu again, and pick

Alter.

A small window will pop up to allow you to alter the Pen, Linetype and Class of all

the Selected Strings.

In this case you are only interested in changing the Class, so position your cursor in

the Class field and type in Road., and then choose OK.

Now go back to your String Attributes, and this time you will see a Road Class is

now in the table.

Highlight the name Road with your cursor

Now move down and select the box titled Chain (HAO). (The HAO is shorthand

for half angle offset).

Change your Font to be black with a font size of 14.


When you select OK, the screen will appear as below.

You will see that the

chainages will most likely

overwrite the details on the

front boundaries of the lots,

but at this stage we are only

interested in showing you

how to use the different

features.

We make no attempt

whatsoever to suggest what

combinations of these

features you might wish to

use at any point in time.

Past experience has however shown that you would normally not try to draw an

engineering plan with centreline chainages at the same time as you had distances on

the boundaries, but we have given up trying to predict what people will and will not

do in drawing plans.

Using Hatching.

As well as filling in closed strings with a solid colour, you can also apply a

hatching pattern.

If you look at your job you will see a court bowl which has a line across its

entrance to close it off.

Select this string by clicking on the line across the neck of the bowl, and then Alter

its class to be Road

Next go back to String Attributes and highlight class name Road.

Click in the fill box, and type in a hatch name of bricks and press enter.

Now press OK and you will see the screen as below.


Note that at this stage you must

type in the name of the hatching

pattern that you require.

As the program develops, a pull

down list of hatch patterns will be

implemented, but as always we

prefer to get it working then get it

pretty rather than the other way

around.

The names of the standard

patterns supplied with CDS can be found in your OnLine manual, but you can use

any hatch pattern which you find which is compatible with the Autocad standard

method of hatching.

Before you complain that the hatching is not particularly dense, Zoom a window

areound the area of the court and you should see something like below.

Again, in this exercise I am more interested in identifying the features and showing

how to get to them rather than trying to produce a perfect result.

I leave it to you to experiment with other hatch patterns and different scaling to see

what you can achieve.

However, before you start to

complain that the hatching

facility doesnt do what Autocad

does, let me tell you that I

already know, and it was never

designed to compete with a full

featured CAD package.

If you need more than is

available, export a DWG and use

a full CAD package to finish the drawing while we concentrate on the calculation

routines that CAD packages dont have.

CDS/TRPS Ver 1.02 Tutorial 1E Page - 1

Tutorial 1E

In this Tutorial you will learn how to

enter a traverse using observed bearings

check the misclose and accuracy of the traverse

adjust the traverse

store the adjusted coordinates into a database

enter a traverse using observed angles

check and adjust angular misclose

adjust the traverse and store the coordinates in the database.

From Windows, select the Start button, and then select Programs to see the list of

available programs. Select Foresight CDS/TRPS, and the Foresight screen will

appear.

Pull down the File menu and select New. Enter a Filename of db.trv, and a

Description of Traverse Tutorial, then select Open, and a blank screen will appear

Access the Traverse Entry Screen

Use your mouse to select Entry from the options on the menu, and then select

Traverse Network.

The screen will appear similar to that below left.

Since this is a new job, select the New option, and then maximise the screen so it

appears as above right

Tutorial 1E CDS/TRPS Ver. 1.02

At this stage you need to be aware that traverses are broken into two main groups,

defined by how the horizontal angular measurement has been observed and

recorded, and these are.

horizontal bearings

horizontal angles

If you use bearings in the field, please follow through the next section.

If you read angles between the adjacent traverse legs then please skip over the

following section and move on to Page.

Entering the Traverse with Observed Bearings

If you are in the habit of observing bearings in the field, then all you need do to get

your traverse into the entry screen is to provide a STN record defining the

coordinates (either real or adopted) of the first point in the traverse, and then enter

the details of the individual legs.

In this exercise, the field party has carried out a closed traverse around a parcel of

land, starting from Point 1 which has local coordinates of East 2500 North 1555,

and R.L of 200.00.

From this point a know azimuth could be set to a nearby Trig Station, so true

bearings were recorded. In this case the field crew were using older style

equipment which required the vertical angle to be read and noted along with the

slope distance, rather than the new fangled gadgets which automatically reduce the

horizontal distance for you.

The following data has been tabulated from a field book


From Station 1 - Adopted Local Coordinates:

East 2500

North 1555

RL 200

From Pt To Pt Bearing Vert. Angle Distance

1 2 16 35 15 93 15 20 134.83

2 3 83 45 05 88 27 30 103.127

3 4 67 04 55 86 12 25 101.051

4 5 111 47 30 92 14 55 158.772

5 6 191 56 20 93 04 15 77.511

6 7 142 33 15 90 30 30 95.174

7 8 241 28 20 87 12 40 106.076

8 9 276 22 45 88 13 50 151.522

9 10 306 07 20 90 30 00 95.150

10 1 274 41 40 89 45 00 102.825

Defining the Known Coordinates

You will see that the default Type of data on the first line is STN, which is exactly

what we require, so press the Enter key to accept it.

Enter 1 for Stn number, and then the East coordinate of 2500, the North coordinate

of 1555 and a height of 200.

Now press the Enter key until you finish off the line and the cursor moves down to

the next line.

The next line will also come up with a STN type of entry, but we only need the

one station in this particular traverse, so we need another type of entry.

You can either allocate the individual entry types by selecting from the pull down

list on each line, or, in the case where you will have a number of entries of the same

type you can set a default entry type.


Entering the Traverse Legs

In this case, all the rest of our entries will be Traverse legs so you should set the

default.

To do this, pull down the Options

menu, and select the option Default

Entry Type. As seen in the screen at

right. From the list of the available

types shown, select Traverse and then

OK.

You will now see the Type change to

Traverse, so press Enter to accept it.

If you look at the columns to the right you will see At Station (here it is 1), then To

Point (here it is 2) . Next you have Angle/Bearing which is 16 35 15 followed by

the Vertical Angles (93 15 20) and the Slope Distance (134.828).

For this example concrete pillars had been set up on each station at the same height,

so the height of instrument and height of target were identical in all set-ups, with

values of 1 being used for each.

Obviously in your real life work, you will need to enter in the values that you

measure for both height of instrument and height of target if you are to obtain

correct values for the heights of the stations.

Enter 1 for both height values, and press Enter to skip over the Point Code column,

and you will see the cursor appears on the next line offering a default type of

Traverse.

Press Enter to accept it, and then

continue to enter the data shown in

the table until you reach the end, by

which time you should have a

screen as seen at right.


Define the Traverse Loop

Before you can go any further, it is necessary to define the route which your

traverse took.

Now in this simple example, this step might seem a little redundant (and it probably

is), but since this table can be used to enter large looped networks it is essential that

you learn how to define the traverse loop.

To achieve this you need to enter a Fieldnote into the traverse table.

Bring your cursor up onto the line defining 1 to 2 and make sure it is in the type

Column.

Next Press the Insert Key on your keyboard, and you will see a new lien is inserted

into the table.

Pull down the options on this new line and select the Fnote type.

Press Enter to lock in the Fieldnote and the cursor will move to the next column.

The Fieldnote required to define the traverse loop is the letters TR followed by a

space, and then a list of the points making up the traverse loop, separated by

commas.

In this case the, points are from 1 to 10 inclusive, and then back to 1 to close.

The fieldnote would then be TR 1,2,3,4,5,6,7,8,9,10,1.

Since this requires a far deal of typing, and, since it is common to have a traverse

made up of a sequence of points, we have implemented a method of defining a

sequence and minimizing the typing required.

Simply type the first point of the sequence, and full stop or decimal point, and the

end point of the sequence, as seen in the alternative Fnote TR 1.10,1.

So, regardless of how you decide to enter it, you need to enter it, and once you have

done so you can now check on the misclose and accuracy of the traverse.


Calculate Misclose & Traverse Accuracy

You can either pull down the Option menu, and select Calculate Misclose, or,

alternatively, select the button labelled Re (short for ReCalc) shown at the left of

the second line.

Either way the misclose, and accuracy and perimeter should now appear in the

relevant fields at the top of the screen as seen below.

Now, in this case you should achieve an accuracy of closure of 1:24 that is well

within acceptable limits.

Since you are within

allowable limits, you

may wish to adjust the

traverse to form a

perfect close, and if you

so do, you can choose

from the currently

available adjustment

methods of Bowditch,

Compass, or Transit.

You may either pull

down the Options menu,

select Traverse adjustments, and then select your required method, or you can

select the icons B,C, or T respectively.

Either way you choose to do it, it is important to remember that the adjustments are

made to the coordinate values of each of the points, and NOT to the raw

information which you have observed in the field and entered into the traverse

table.

Once the adjustment has been made the program will advise you and inform you to

use the Print to see the resulting adjusted values.


Calculate & Display Coordinates

The aim of the traverse exercise is to eventually produce coordinate values for the

traverse points (and any side shots

Documents

Manual CDS1