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TRANSCRIPT
ArcGIS Desktop: ArcMap Editing Tips and Tricks
Outline
• Editing Environment
• Editing Data
• Summary
• Resources
Demonstration
Maximize Editing Real Estate
• Reduce Size of Table of Contents– Remove Unnecessary Layers – Move Layers to the Top of the Table of Contents
• Float Table of Contents
• Remove Un-Needed Toolbars– Draw Toolbar– Layout Toolbar
Customize Toolbars
• Add Frequently used Commands to a Toolbar
– Layout View– Data View– Refresh View– Pause Drawing
• Drag and Drop Command to a Toolbar
Customize Edit Tasks
• Create New Group– Tasks Based Upon Workflow
• Editor Toolbar > Options > Edit Tasks
Overriding Map Units
• Use Unit Abbreviation After Distance Value
• Distance Units Interpreted from Entered Value
Unit Abbrev.
Meter m
Kilometer km
Millimeter mmFoot ft 'Mile miNautical mile nmChain chYard ydInch inSurvey Foot ftUSSurvey Chain chUSSurvey Mile miUSSurvey Yard ydUSMap Units - Feet
Distance - Meters
Overriding Map UnitsContinued…
• Enter Coordinates in DD, DMS, or DDM when Map has a Projected Coordinate System
• Absolute XY and Delta XY
Unit Abbrev.
Decimal degrees dd
Degrees minutes seconds dms
Degrees decimal minutes ddm
Map Units - Meters
XY coordinates - DMS
The Geodatabase is…
• Storage Container for spatial Information
• Business Rules
… data integrity for comprehensive GIS mapping and analysis workflows
Subtypes
• Property of a Feature Class in the Geodatabase
• Places Features into Like Groups– Can have Different Default Values and Domains for each Subtype– Can Define Topology Rules Between Subtypes– Subtype Must be a Long or Short Integer Field
Domains
• List the Acceptable Values of a Field– Used to Ensure Attribute Integrity– Quicker Editing
• Defined at the Geodatabase Level
• Types of Domains– Range
• A Road can have Between One and Eight Lanes• A Sewer Main can have a Length Between 5 and 500 Feet
– Coded Value • A Tree can be of Type Oak, Redwood, or Palm• A Sewer Main can be Made of PVC, Cast Iron, or Concrete
Visualizing Snapping Environment While Editing
• Snapping Indicator inStatus Bar
• Snap Tips
• Snapping Distance (Tolerance)– View by Pressing the T Key
Status bar
Layer Name Snap Type
Snap Tip
Geodatabase Annotation
• Annotation in the Geodatabase– ArcEditor/ArcInfo Licenses can Create Feature-Linked Annotation– Use the Annotation Toolbar for Editing Geodatabase Annotation
• Label Class Converts to an Annotation Class
Map Annotation
• Annotation in the Map– Annotation Stored in Annotation Groups in the Current Map Document– Use Draw Toolbar to Modify Existing Map Annotation
DemonstrationAnnotation
Sticky Move Tolerance
• Helps Avoid Accidental Movement
• Prevents Feature Movement within Tolerance
100 pixels
Selecting from overlapping selectable features
• Use the “Select Next” Function
• Click with Edit Tool to Select Feature, Then Press the N key
• Must point to first feature within the selection tolerance
Selection toleranceBox selected Press N
Polygon selected
Press N
Line selected
Zipper Task
• Popular ESRI Developer Sample
• Snaps Existing Features within a Specified Tolerance to an Edit Sketch
• Works Well with Trace Tool
Geodatabase TopologyArcEditor or ArcInfo License Required
• A Topology is Created Inside a Feature Dataset
• Uses Rules to Validate Topology– 25+ Topology Rules
• A Topology is Used to– Describe how Features Share
Geometry (Coincidence)– Establish and Maintain Topological
Relationships Between Features
ParcelCorner
Parcel
ParcelAnno
LotLines
Parcel_Topo
LotDimensions
Subdivision
Map Topology
• Map Topology– Temporary for the Edit Session– For Shapefiles or Feature Classes without a Topology and Outside of a
Feature Dataset– Works with All License Levels– Enables Some of the Topology Editing Tools
Topology Editing
• Editing Tools that Directly Utilize Topology
– Construct Features
– Planarize Lines
– Auto-Complete Polygon
– Topology Edit tool– Modify Edge– Reshape Edge
25
Moving Coincident/Shared Geometry
• Topology Edit Tool
– Selects and Modifies Edges and Nodes– Press E to Select Only Edges, and N to Select Only Nodes
• Show Shared Features– To Pull Apart Coincident Geometries
Uncheck layers so they are not modified with the coincident geometry
DemonstrationTopology
Topology Workflow
1. Create Geodatabase2. Create/Load Feature Classes3. Create Topology in Feature Dataset4. Validate Topology5. Fix any Errors6. Edit7. Validate8. FixEdit, Validate, Fix…
Why Can’t I Start Editing?
• Permissions
• Folder or Workspace is Set to Read–Only
• Locked Files
• Licensing– ArcView Cannot Edit Topology, Feature–Linked Annotation
• Field Calculator is not Enabled (Grayed Out)– Feature Classes that Participate in Topology or Network Cannot be
Updated Outside of an Edit Session
Editing Attributes
• Editable Columns have White Headers• Pencil Icon Indicates Table in Edit Mode• Geodatabase Domains and Subtypes Respected• Ctrl + Shift + E : Start Editing
Editable Column (white)
Edit Mode
Edit Using Subtypes
SummaryTo be More Productive
• Let the Tool do the Job– Topology– Zipper Tool
• Data Quality– Subtypes– Domains
• Less Clicks and Quicker Edits– Customize Editing Environment
Resources
• Help Documentation– Editing and Data Compilation:
http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=An_overview_of_editing_and_data_compilation
– Shortcut Keys for Editing in ArcMap: http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Shortcut_keys_for_editing_in_ArcMap
• User Forums– ArcGIS Desktop – Data Editing:
http://forums.esri.com/forums.asp?c=93&s=987#987• Instructor Lead Training
– ArcGIS Desktop III: GIS Workflows and Analysis• Self Study
– Editing in ArcGIS Tips and Tricks I, II, III