View
4
Download
0
Category
Preview:
Citation preview
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
Select “JPEG” Enter file
name
Caritas Chan Chun Ha Field Studies Centre EUE
Page 11
Export your result to Google Earth
Open the ToolBox
Choose Layer to KML in To KML inside the toolbox menu
Caritas Chan Chun Ha Field Studies Centre EUE
Page 12
In Layer to KML callout box
Choose Samplingpts from Layer
Output File is the location path where the file to be saved.
Layer Output Scale type “1”
**Please be noted that the map projection scheme in ArcView could be different from the one in
Google Earth, variance could be found in the KML file.
<The End>
Recommended