Concepts of Maintaining Your Data Simple Ways to Edit Your Data

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Concepts of Maintaining Your DataSimple Ways to
Edit Your Data

• By Lorne Woods

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Levels of Desktop ArcGIS

• Arc View
• Version that most clients will use
• The version that this session will focus on
• Arc Editor
• Limited capabilities, but more than the ArcView
  version
• The version that the Advanced Editing session
  will use
• Arc INFO
• Have all editing functionality available

All of the above versions come with Arc
Catalog Arc Toolbox
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File Formats that Can be Edited Using ArcGIS

• Shapefiles
• Personal and File Geodatabases
• Multi-User Geodatabases (for extremely large
  datasets)

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Editing Map Data in ArcGIS

• Important Data Layers to Edit
• Points
• Schools
• Students
• Lines
• Street Networks
• Railroads
• Rivers
• Polygons
• Study Areas
• Attendance Areas
• Development Tracts
• Lakes

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Steps to Set Up Editing in Arc GIS

• Open ArcMap
• Add Data Layers
• Customize Look of Layers
• Zoom into Specific Area
• Set Selectable Layers
• Start Editing
• Set Target
• Set Task
• Notice Editor Toolbar
• Set Snapping Environment

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Steps to Set Up Editing in ArcGIS
Open a new Map Document and add the Data Layers
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Steps to Set Up Editing in ArcGIS
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Steps to Set Up Editing in ArcGIS
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Steps to Set Up Editing in ArcGIS
Set the Selectable Layer (the one you want to
edit)
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Steps to Set Up Editing in ArcGIS
After starting an edit session, more items on
the Editor toolbar become active.
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Steps to Set Up Editing in ArcGIS
Once you start your edit session, you need to
assign a TARGET layer and select a TASK.
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Steps to Set Up Editing in ArcGIS
DEPENDING ON YOUR TASK, NEW TOOLS ARE NOW
AVAILABLE.
The Edit Tool (is used for selecting features)
The Sketch Tool (is used to draw lines or shapes)
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Steps to Set Up Editing in ArcGIS
Setting up the Snapping Environment!
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Steps to Set Up Editing in ArcGIS
Setting up the Snapping Environment!
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Exercise Editing Basics in ArcGIS
Setting Up the Editing Environment

• Set Selectable Layers
• Start Editing
• Set Task (Cut Polygon Features)
• Set Target (start with Study Areas)
• Notice Editor Toolbar (Edit Tool Sketch Tool)
• Set Snapping Environment

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Editing Data In ArcGIS
Editing Polygons
Lets split a Study Area and see what happens
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Editing Data In ArcGIS
Editing Polygons (contd.)
A sketch is generated. This represents the
most current edit where it appears with vertices
and endpoints and a small x next to the sketch.
Once you complete the sketch (double-click) then
it appears light blue (selected).
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Editing Data In ArcGIS
Editing Polygons (contd.)
Now we need to edit the attributes and give
them new unique Study Area numbers.
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Editing Data In ArcGIS
Editing Polygons (contd.)
The labels also automatically update.
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Editing Data In ArcGIS
Editing Streets
Set up the edit environment.
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Editing Data In ArcGIS
Editing Streets (contd.)
Adding attributes to the street.
Adding a street.
A sketch of the new street.
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Editing Data In ArcGIS
Editing Points
1. Setting the environment.
2. Adding School Sites.
A sketch of the new school.
Adding attributes to the school.
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Editing Data In ArcGIS - Editing Tables
NOTICE THAT THE HEADERS NAMES ARE WHITE AND NOT
GRAY. Now we can change the information in the
cells for each record.
Right-click on the layer name in the legend and
open the Attribute Table
You can change them individually or you can
select multiple records and CALCULATE a
particular field (column) all at the same time
with the same information (i.e. changing a Study
Area number for many projects).
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Undoing Your Edits in ArcGIS

• Under the Edit pull-down menu,
  Undo (CtrlZ)/Redo
  (CtrlY)
• When you stop editing, select no to saving
  edits
• Upon exit, select no to saving edits
• Delete key

Undo Button
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Saving Your Edits in ArcGIS

• During an edit session
• Save Edits
• Stop Editing/Save Edits
• After you have stopped editing want to exit
• Save Edits
• Stop Editing/Save Edits
• Save the map document / CtrlS (option)
• Exit ArcMap

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Other Editing Options
Task pull-down menu
TOOL Buttons Menu (cursor functions)
Intersection
Arc
Sketch
Midpoint
Tangent
End Point Arc
Trace
Distance-Distance
Direction-Distance
The task to choose depends upon the data layer
you are editing.
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Please come by the Doctors Office. We are glad
to address questions directly related to your
District.