Editing in ArcGIS 9.1 Tips and Tricks by pji19056

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									Editing in ArcGIS 9.1
  Tips and Tricks
  Timothy R Weisenburger ESRI
    Robert Siciliano USFWS
               Overview
Topics
 Productive editing techniques
 Solving feature adjustment problems
 Common asked questions
 Editing coincident features - Topology
Format
 Each topic followed by a software demonstration,
         Help & helpful things
Context Sensitive help
  On command in pulldown menu
  or button on toolbar, click the
  What's This ? tool
  On command in context menu -
  highlight command, press Shift +
  F1
  On control in dialog box, click
  What's This ? button from top of
  the dialog box
Editing Documentation
  Editing in ArcMap book
Training Course
  Data Production and Editing
  Techniques
Productive editing techniques
Typical challenges when editing features
  Sketching efficiently
  Managing feature selections
  Controlling feature snapping
      Sketching challenge #1
How can you quickly switch from a sketch
tool to another tool and back to the sketch tool
again…




…instead of interrupting your sketch to visit the toolbar?
       Shortcut keys: E, C, X, Z
Use the “E” shortcut key
to toggle between the
Sketch tool and the Edit
Tool.
Use the “C” shortcut key
to pan
Use the “X” shortcut key
to zoom out
Use the “Z” shortcut key
to zoom in
 To see a list of all the editing shortcut keys, in ArcGIS Desktop help,
 on the Index tab enter “shortcuts, for editing in ArcMap”
    Sketching challenge #2
How do you ensure that you accurately create
an edit sketch using other feature options?
       Use Sketch tool constraints
Constraints -> Sketch Tool context
menu
Add sketch segments
     Parallel
     Perpendicular
At
     Absolute XY
     Delta XY
With specific
     Length
     Direction
     Direction and Length
     Distance
     Deflection angle
     Tangent curve
         Use the Trace Tool
Adds sketch segments by tracing along
selected features




     Mitered     Beveled    Rounded
    Sketching challenge #3
How can you use units different than the map
units when you’re specifying distance for a
sketch segment?

                             Map units are feet but
                             you need to specify the
                             length in meters
Use unit abbr. after distance value
Distance units are interpreted from entered value
Distance entered is used regardless of map units    Unit      Abbrev.
                                                Meter         m
                                                Kilometer     km
                                                Millimeter    mm
                                                Foot          ft ‘
                                                Mile          mi
                                                Nautical
                                                              nm
                                                mile
                                                Chain         ch
                                                Yard          yd
                                                Inch          in
                   Distance Unit - Meter        Survey Foot   ftUS
                                                Survey
                                                              chUS
                                                Chain
                                                Survey Mile   miUS
                                                Survey Yard   ydUS
                       Map Units - Feet
     Sketching challenge #4
How do I change the radius of a curve that has
already been created?
                 Traverse Tool
Load sketch into the traverse tool to modify




 Steps:                                             NOT available with
          • Select Sketch tool                      ArcView license.
                                                    Instead you can use
          • Right click feature to change           the sketch constraints
          • Open Traverse dialog                    for accurately creating
          • Right click in dialog                   features.
          • Choose “Load Traverse From Sketch”
          • Modify the radius or parameters of segment
      Selection challenge #1
With multiple selectable layers, how can you
modify feature selection by individual layer?
Use the Selection tab & Attributes dialog
Selection tab: right click on layer
to:
  Zoom to selected features
  Clear selected features (for that layer
  only)
  Switch selection (for that layer only)
  Select all (for that layer only)
Attributes dialog: right click on
feature
  Unselect features in
  a layer one at a time
  Can work with multiple
  selectable layers
     Selection challenge #2
How can you make sure you’re selecting the
right feature from overlapping selectable
layers?




   Parcel                   Zoning
     Use the Select “next” function
      Select feature, then press the N key
      Must point to first feature within the Selection
      tolerance




                       Box selected           Press N        Press N
Selection tolerance
                                           Poly selected   Line selected

   Use this technique with overlapping features
       Selection challenge #3
  How can you avoid accidentally moving selected
  features?
Selected feature




                                Gap between features
Set the Sticky move tolerance
Helps avoid accidental movement
Prevents feature movement within tolerance




                                 100 pixels
    Snapping challenge #1
How can you visualize the snapping
environment while you’re editing?



                        Snapping to vertex or edge?
                        Snapping to which layer?
                        Snapping tolerance?
Snap agents, tips and a shortcut key
Snapping indicator
    Snapping
    indicator                    Status bar

                Layer name    Snap agent type


                                    If snap tips are turned on
Snap tips
                                        Snap tip

Snapping distance
  View by depressing "T" shortcut key
     Snapping challenge #2
How can you get more control over how features
snap to one another?




                                       Parcels: Vertex
                                             or
                                       Zoning: Edge
  Snapping tolerance and priority
 Set snapping tolerance in the Editing
 Options dialog
 Or use the Snap Tolerance tool to
 interactively set the tolerance.
You can also:
 Prioritize layers in the Snapping
 Environment dialog
                                                     Snap tolerance tool
                                                         27 pixels




                Remember:
                • Press the ‘Spacebar’ to temporarily suspend snapping
                • Use the ‘V’ shortcut key to locate where vertices are
    Snapping challenge #3
How can you over-ride the snapping
environment?
                       Snap to vertex, edge
                       or endpoint of features
                       irregardless of snapping
                       environment
                               OR
                       Avoid snapping to vertex,
                       edge or endpoint of features
                       even though snapping
                       environment is set
            Snap To Feature
Snapping on-the-fly
Overrides snap environment
settings
Snap to feature geometry
without setting individual snap
agents
Snap to midpoint of a line or
polygon boundary
         Snapping challenge #4
 How can you rotate a selected line feature on one end
 point and snap the other end to another feature?
Misaligned street feature      Rotated street feature




                                End point snapped to
                                another street feature
   Change the Selection Anchor
With the Rotate tool
  Set snapping
  environment
  Select the line feature
  Press the “S” key
  Position the selection                                      Auxiliary
                                  Selection Anchor        Selection Anchor
  anchors
  Rotate the feature

                                                      Snapping point
 You can also hold the Ctrl key
 down and use the Edit Tool to          Pivot point
 move selection anchors
Demonstration
                    Review
Sketching features using multiple tools and functions
   Shortcut keys, unit abbreviation
   Accurate sketch creation using other features
   Modifying the shape of existing features
Managing feature selections
  Selection tab and Attributes dialog
  Select “next” function and Sticky move tolerance
Controlling feature snapping
  Pixels for Snapping tolerance units
  Snap agents, snap tips, “T” key, “V” key
  Auxiliary selection anchor
  Snap to feature commands, “spacebar” suspends
  snapping
   Solving feature
adjustment problems
Feature adjustment challenge #1
 How can you quickly take a feature that resides in a
 non-editable layer and reproduce it in an editable
 layer?




      CAD drawing
      or Coverage


          Lot lines layer
         Copy Features Tool
Copies both editable and non-editable data
Copies data outside of Target layer spatial domain and
pastes into target layer
Scales selected features if you drag a box




                         The target layer must be the same type of layer
                         (point, line, or polygon) as the one from which
                         you copied. There is one exception to this rule—
                         you can copy polygons into a line layer.
Feature adjustment challenge #2
What adjustment technique should I use and how do I
get the Adjust command enabled?




                Displacement
       Source
                    Links
                                Destination
                Spatial Adjustment
  Located on Spatial Adjustment toolbar
  Commands & Tools to modify coordinate locations of
  your data.
Adjustment methods used to:
   •Differentially scale, skew, rotate and translate data
   •Stretch or warp features
   •Moves end vertices of
   features in layer to the
   ends of adjacent layer
   Remember to create the correct
   number of links for the
   transformation method
Feature adjustment challenge #3
How do you adjust multiple layers with the
same set of links?
    Adjusting Multiple Layers
To adjust multiple layers:
  Load layers into ArcMap
  From Set Adjust Data
     Specify adjustment layers
To reuse links
  Save to text file
  Use links menu
     Save Link File
Feature adjustment challenge #3
 How can you migrate attribute values from one
 feature to another?
             Attribute transfer
Interactively transfer attributes between features
Match common fields between layers
  Set source and target layers
  Specify fields to transfer
  Option to transfer geometry
Demonstration
                  Review

Copy Features Tool
Spatial Adjustment Toolbar
 Transformation
 Attribute transfer
 What questions do we get asked?
How do you change the coordinates of a feature?
How do you create and remove donut holes in
polygons?
How do you ‘flip’ the direction of a feature?
How do you update the attributes of many features?
How do you change the coordinates of a feature?
Edit Sketch Properties dialog
Highlight a vertex                                Click to
                                                   Click to
Works with “Parts” of                             highlight
                                                   highlight
multipart features                                vertex
                                                   vertex
Context menu options
   Insert vertices
   Zoom to vertex
   Delete
                              1
Can edit X, Y, M,
and Z values          2               0 (start)


                          3

                                  4
Creating & filling donut holes in polygons
Creating a Donut hole:
  Double click on the feature to
  modify shape
  Click on the Sketch tool
  Right click to ‘Finish Part’
  Sketch the hole feature
Filling the donut hole
  Add a feature where you want
  the hole
  Select that “Holed” feature
  Choose Editor menu -> Clip
  Choose ‘Discard the area that
  intersects’ option
 Removing donut holes in polygons
Removing a Donut hole:
  Double click on the feature to modify it’s
  shape
  Open the Sketch Properties
  Right click on “Donut Hole” part and
  choose ‘Delete’
How do you ‘flip’ the direction of a feature?

   Flip command on the Edit Sketch context
   menu
      Double click feature to modify it’s shape
      Right click shape to open the Sketch context menu
      Click on Samples ->
 • Developerthe ‘Flip’ command
    • Flip Command
        • Bulk flip of selected features
How to update attributes of many features?
   Batch update of feature attributes
     Select target features
     Open attributes window
     Choose layer
     Choose target field
     Type new attribute value



    Select Layer

                                 Enter attribute value
                                 for selected features
Demonstration
      Ensuring Coincidence
ArcMap topology toolbar
Editing Coincident Features
      ArcMap Topology toolbar
Contains topology editing tools
                 Constructing features
                 Constructing features    Validation
                                          Validation




        Topology to edit
        Topology to edit   Editing coincident geometry
                           Editing coincident geometry

   ArcEditor license required to create and edit a GDB topology
Build a map topology
   Temporary for the edit session
   For shapefiles, feature classes without a topology
   Works with ArcView
   Enables some of the topology editing tools
       Topology tools availability
                                                          ArcView
                          ArcInfo & ArcEditor ArcGIS
                                                          ArcGIS
                          Geodatabase
                                      Map Topology Map Topology
                           Topology
  Topology
  Edit Tool
  Show
  Shared Features
  Planarize
  Lines
  Construct
  Features
  Validate
  Error
  Management
• Geoprocessing Integrate tool to snap adjacent features together
• Available to all licenses of ArcGIS
   Moving coincident geometry
Topology Edit Tool



  Selects and modifies edges and nodes
  Press E to only select edges, and N to only select
  nodes
Show Shared Features
  To pull coincident geometries apart
             Uncheck layers so they
              Uncheck layers so they
             are not modified with
              are not modified with
             the coincident geometry
              the coincident geometry
   Temporarily splitting edges
Why?
  For snapping to
                               Select an edge
  topology nodes
  To move a part of an edge
                               Temporarily split
How?                           the edge
  By distance
     From start or end         Select and modify
     By percentage             one of the edges

  Using the selection anchor
                               All polygons
Easily removed                 are modified
  Build Topology Cache
  Merge connected edges        Rebuild cache to
                               remove temporary nodes
                 Edge tasks
Reshape edge
  Reshape an edge
  with a sketch
Modify edge
  Edit the vertices of an edge in the sketch
                    Split/Move Node
Temporarily disconnects one node and one edge from
topology
    Move a polygon boundary without creating slivers
    S key while dragging node with Topology Edit Tool
Select one node        Press S key and snap
                                                These edges don’t
and one edge with      node to some other
                                                rubber band
N and E keys           part of the polygon




                       Polygons will be
                       deleted if you don’t
                       snap the node to the
                       edge of the polygon
Demonstration
    Download developer samples
  Additional developer tools and samples
  If developer samples installed




  If not installed –> go online –> download sample




http://arcgisdeveloperonline.esri.com/ArcGISDeveloper/default.asp
    Additional training classes
            Virtual Campus course
   Creating and Editing Geodatabase Features with
                        ArcGIS 9
Creating and Editing Linearly Referenced Features with
                        ArcGIS 9
   Creating and Editing Geodatabase Topology with
                        ArcGIS 9
            Instructor – led training
              Building Geodatabases II
      Creating and Editing Parcels with ArcGIS
              Introduction to ArcGIS II
       Data Production and Editing Techniques
         Open for Questions

ArcGIS Server and ArcGIS Engine Demonstration
  Demos on editing 12:00 Noon
    Simple and topological editing, attribute updating, snap to layers,
    merging, splitting, deleting, vertex and node editing, shared
    coincidental edge modifications and much more!


  The Road Ahead ArcGIS 9.2 – 3:00 PM

								
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