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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