Caritas Chan Chun Ha Field Studies Centre EUE

Page 1

GIS - Exploring Urban Environment ArcMap & Spatial Analyst

1) Starting the programme:

- Start Program File ArcGIS ArcMap

2) Opening the map document:

- Double click “Browse” Find the file of the map at

“D:\GIS\Exploring Urban Environment\EUE_Map” click “OK”

- Part I -

Basic Operation of ArcMap

3) The layout of ArcMap

4) Manipulating the Table of Contents (TOC)

TOC shows all map layers (the layers displayed will have a “” next to it):

- You can rename a layer by double click its name, you can also change its colour by clicking

the symbol of that layer as well.

- To view the properties of the layers:

Layers in TOC;

Different layers

store different

kinds of

information.

“hydo” is the name

of the layer, the

symbol under hydo

represents “hydo” on

the map.

Table of contents

(TOC)

Map display area Tool

Caritas Chan Chun Ha Field Studies Centre EUE

Page 2

- Right click the layer and select “Properties”, a dialogue box will pop up

- You can view the information and change the setting of the layer in “Properties”.

5) Manipulating the tools

- If the tool toolbar does not show up, click “View” Toolbars tick “Tools”

- Basic tools from the “Tool” toolbar:

- Directly adjust the map scale:

- Enter the expected scale in the box of “Map scale bar” , then the map

layout will be changed accordingly.

- Part II -

Adding Data onto the Map

6) Adding features into the map

- In order to examine the urban environment of Cheung Chau, the data of 24 assigned

sampling points are ready for you to add onto the map including their scores and

landuses.(Exclude the score for the scoio-economic conditons)

- Open the Editor toolbar: View Toolbars Editor

- Click “Editor” “Start Editing”

- In the Editor toolbar, click the icon to activate the ‘sketch tool’ function

- Your task is to “Create new features” and the target is “Sampling pts”, so the toolbar

should look like this:

- Click the cursor will become point on the location of sampling points a

blue point will be shown on the map

- Click on the editor toolbar an attribute box of the chosen sampling point is pop up

- In the attribute box, enter the data of Id, scores and landuse of the sampling point under the

column “value”.

Zoom in Zoom out Pan the

display

View the

full extent

Back to the previous

extent / forward extent

Select

Elements

Get the attribute

of the feature

Fixed zoom in /

zoom out

Caritas Chan Chun Ha Field Studies Centre EUE

Page 3

- Press “Enter” when finish

- When you finish all data entry Click “Editor” Click “Save Edits” Click “Stop

Editing”

*** Identify the sampling points by using the icon

- Part III -

Classification

7) Classification: Making Graduated Symbols

- Right click the layer “samplingpts” in TOC Select “Properties” to open Layer Properties

menu “Layer Properties” box is popup

- ○1 Select Symbology

- ○2 Select Quantities in Show menu and then highlight Graduated Symbol.

- ○3 In the Field “Value”, select Score

- ○4 You can select your favourite colour for the symbols by clicking “Templete”

- ○5 Click OK when finish

Remarks:

Commercial = C

Transportation = T

Industrial = I

Recreation = Rec

Residential = Res

Gov’t/Communcity/Institution = GCI

○1

○2

○3

○4

○5

Caritas Chan Chun Ha Field Studies Centre EUE

Page 4

- Part IV -

Spatial Analyst of Urban Environment

8) Activate “Spatial Analyst” in ArcMap

- Click “Tools” “Extensions” choose “Spatial Analyst” and then close this window.

- A toolbar of “Spatial Analyst” will appear as shown below. Please check “View”

“Toolbars” and look for “Spatial Analyst” if the toolbar does not show up.

9) Setting the boundary for projection

- Click ”Spatial Analyst” “options” select General tab

- Type D:\ for the working directory

- Choose “boundary” for the analysis mask

- Select Extent tab select “Same as Layer Boundary” for “Analysis extent”

- Click OK when finish

Caritas Chan Chun Ha Field Studies Centre EUE

Page 5

10) Using Inverse Distance Weighted (IDW) for interpolation

- “Spatial Analyst” toolbar Choose “Interpolate to Raster” Choose “Inverse

Distance Weighted”:

- A IDW dialogue box is pop up Select “samplingpts” in Input points and “Score” in

Z-value field:

- A new layer called “IDW of samplingpts” was created

- Right click the layer of “samplingpts” Choose “Properties” A “Layer Properties”

box is pop up Choose “Display” Change the transparent to 30% Click “OK”

Caritas Chan Chun Ha Field Studies Centre EUE

Page 6

- Part V -

Create a map layout

A map should have:

11) Create a thematic map: Insert all map elements

- Switch to LAYOUT VIEW:“View” “Layout View” a layout map appears as below

- Right click the outside of the layout Page setup

North Arrow

Scale bar

Graph

Title

Legend

Scale text

Map layout, the

printed area

Zoom in/out the

layout

Caritas Chan Chun Ha Field Studies Centre EUE

Page 7

-

- Add map elements: All map elements can be found in the insert menu.

1. Click “Insert” “Title” type the title “Environmental Quality of

Cheung Chau” in the box “OK”

2. “Insert” “North Arrow” choose one north arrow in the selector

windowClick “OK” click and drag the frame wherever you want.

3. “Insert” “Scale Text” click “absolute scale” Click “OK” “Insert”

”Scale Bar” click “Scale line” Click “OK”, you can adjust the

scale directly by typing on the map scale box

4. “Insert” “Legend” Highlight all unrelated items and click the icon

in the legend wizard, then click “next” until Finish.

Highlight all unrelated

items except

“samplingpts”

Press “Next” until

finish.

Right click the blank area to get the Page

context menu and select “Page Setup”

- In the Page Setup dialogue, choose

“Landscape” for the page

orientation.

Caritas Chan Chun Ha Field Studies Centre EUE

Page 8

12) Create a thematic map: Create a graph

- Click “Tools” “Graphs” “Create”

- Create Graph Wizard pop up graph type choose “Vertical bar”

- Layer/Table choose “samplingpts ”

- Value field choose “score”

- X label field choose “Id” click “Next”

Caritas Chan Chun Ha Field Studies Centre EUE

Page 9

- General graph properties – Title “ Environmental Quality of Cheung Chau”

- Axis properties-Title “Score” click “Finish”

- - Right click the blue bar choose “ Add to Layout”

13) Create a thematic map: Insert photos to the map

- “Insert” “Picture” Search for the photos from the drive

Caritas Chan Chun Ha Field Studies Centre EUE

Page 10

14) Export map

- Export the map In File menu, click Export Map enter the filename (your group

number and your name) and set the file to JPEG format

<The End>

Select “JPEG” Enter file

name