WxGUI Vector Digitizer: Difference between revisions

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=== Remove existing vertex ===
=== Remove existing vertex ===
[[Image:vertex-delete.png]]
Remove selected vertex from the linear feature (line or boundary). This operation will change the shape of the selected feature.
Mouse buttons functionality:
* Left
** Select vertex to be removed in given select threshold
* Right
** Remove vertex, rewrite the feature
* Control+Left
** Undo (do not remove vertex)
[[Image:wxgui-vdigit-delete-vertex.png|thumb|center|400px|wxGUI vector digitizer - remove vertex from the linear feature]]


=== Move existing vertex ===
=== Move existing vertex ===

Revision as of 15:20, 4 February 2011

This page covers core functionality of wxGUI vector digitizer and also explains it's usage for newcomers.

Adding new features

Point

Mouse buttons functionality:

  • Left
    • Add new point on given position
wxGUI vector digitizer - add new point and define it's attributes

Line

Mouse buttons functionality:

  • Left
    • Add new vertex on given position
  • Right
    • Write out the new line with given number of vertices
  • Control+Left
    • Remove last added vertex from the line
wxGUI vector digitizer - add new line and define it's attributes

Boundary

Mouse buttons functionality:

  • Left
    • Add new vertex on given position
  • Right
    • Write out the new boundary with given number of vertices
  • Control+Left
    • Remove last added vertex from the boundary
wxGUI vector digitizer - add new boundary and define it's attributes

Centroid

Mouse buttons functionality:

  • Left
    • Add new centroid on given position
wxGUI vector digitizer - add new centroid and define it's attributes

Area

This functionality combines adding new boundary without category and optionally centroid(s) with category defining new area(s). If the newly added boundary defines an area or two areas on the left and right from the boundary it will also add new centroid(s) which define the newly created area(s).

Mouse buttons functionality:

  • Left
    • Add new vertex on given position
  • Right
    • Write out the new boundary with given number of vertices
  • Control+Left
    • Remove last added vertex from the boundary
wxGUI vector digitizer - add new area and define it's attributes

Modifying linear features

Add new vertex

Add new vertex to the linear feature (line or boundary).

Mouse buttons functionality:

  • Left
    • Place new vertex in given select threshold
  • Right
    • Rewrite line with newly added vertex
  • Control+Left
    • Undo (do not add new vertex)
File:Wxgui-vdigit-add-vertex.png
wxGUI vector digitizer - place new vertex to the linear feature

Remove existing vertex

Remove selected vertex from the linear feature (line or boundary). This operation will change the shape of the selected feature.

Mouse buttons functionality:

  • Left
    • Select vertex to be removed in given select threshold
  • Right
    • Remove vertex, rewrite the feature
  • Control+Left
    • Undo (do not remove vertex)
File:Wxgui-vdigit-delete-vertex.png
wxGUI vector digitizer - remove vertex from the linear feature

Move existing vertex

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