Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.
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Transcript of Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.
![Page 1: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/1.jpg)
Welcome to Welcome to DEP’s GIS Workshop DEP’s GIS Workshop
SeriesSeries
Workshop 4Symbology in ArcMap
![Page 2: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/2.jpg)
Displaying Symbols
Click on plus and minus signs to the left of the layer name to expand or collapse layer names and/or symbology.
Symbology in ArcMap 2
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Class Exercise
•Open C:\ArcGIS Training Materials \Symbology\Symbology_Doc1.mxd•Zoom in to 1:100,000 scale•Drag the Quaternary Geology layer beneath the Base Map layer. •Drag the Quaternary Geology layer above the Base Map layer.•When are the Base Map layers NOT visible?
Symbology in ArcMap 3
![Page 4: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/4.jpg)
Drawing Order Affects What You See!
Solid Fill Polygon Layer On Top of Base Map Layer = Base Map Layers Not Visible
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![Page 5: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/5.jpg)
Solid Fill Polygon Layer Beneath Base Map Layer = Base Map Layers Visible
Drawing Order Affects What You See!
Symbology in ArcMap 5
![Page 6: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/6.jpg)
Fill Color and TransparencyTo “see through” a polygon layer, there are two options:
1.Set the Fill Color to No Color in the Symbol Selector dialog box. (Hint: You may need to reset your Outline Color to distinguish this layer from other layers.)
OR2. Set a Transparency percentage in the Properties/Display dialog box.
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![Page 7: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/7.jpg)
Setting Fill Colorto “No Color”
Select “No Color” from the Fill Color box.
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Result:
Symbology in ArcMap 8
![Page 9: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/9.jpg)
Setting Transparency
Open Properties dialog box by double clicking on the layer name. Select the Display tab. Type in a transparency percentage.
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Result:
Symbology in ArcMap 10
![Page 11: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/11.jpg)
Symbology Types• Features Single Symbol
• Categories Unique ValuesUnique
Values/Many Fields
• Quantities Graduated ColorsGraduated Symbols
• Multiple Attributes Quantity by Category
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Features (Single Symbol)
Every feature is given the same symbol.
In this example, dams in CT are represented by a red dot.
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Go to the Symbol Selector dialog box by clicking on the symbol in the legend.
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The Symbol Dialog Box
![Page 14: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/14.jpg)
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Point Example – Boat Launches
Start with a custom color
Choose a shape, size,and angle
View the result
Creating and Modifying Symbols
![Page 15: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/15.jpg)
Finding New Symbols
There are many other sets of symbols available
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Creating and Modifying Symbols
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Polygon Example – DEP Property
Start with a custom color
Add a marker fill
View the result
![Page 17: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/17.jpg)
Categories (Unique Values)
Features are grouped according to a value in a field.
In this example, DEP Property is grouped by Area Type.
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Categories (Unique Values, Many Fields)
Features are grouped according to values from more than one field.
In this example, aquifer protection areas are symbolized by two fields: Av_legend and Adopted.
Symbology in ArcMap 18
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Quantities (Graduated Colors)
Features are symbolized according to quantitative data.
In this example, different colors depict town population.
Symbology in ArcMap 19
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Quantities (Graduated Symbols)
Features are symbolized according to quantitative data.
In this example, different size points depict town population.
Symbology in ArcMap 20
![Page 21: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/21.jpg)
Multiple Attributes (Quantity by Category)
Features are symbolized according to categorical and quantitative data. In this example, Pop./sq. mile and Description are shown.
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Environmental Justice Areas
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DEP’s Layer Files
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Characterized by “.lyr”.
Does not contain actual spatial or attribute data, only “points to” data
Contains “instructions” for displaying symbology
Can have multiple datasets in one layer
![Page 24: Welcome to DEP’s GIS Workshop Series Workshop 4 Symbology in ArcMap.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf55503460f949c45e3/html5/thumbnails/24.jpg)
Saving a Layer File
If you custom symbolize a layer, you might want to save it for use in this .mxd and other .mxd’s.
Right click on the layer name in ArcMap, choose “Save as Layer File…” and specify a location in which to save your file.
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