Map Editor

In the Map Editor,you can visualize and edit spatial information. The spatial information is organized into a series of Layers.

The context-menu (only available if a selection tool is selected) allows you to access a number of options.
Here is what the Map editor looks like:

Toolbar

The standard UDIG tool set includes Navigation Tools, Pan Tools, Selection Tools, Information Tools and Editing Tools.

Button Command Description
print creates a page for printing based on the current map
     
  Dynamic Help  
  Search Help  
     
  back Navigation command returning to previous map location
  forward Navigation command restoring a map location changed using the back command
     
refresh map redraws the current map
cancel cancel the current rendering
show all A navigation command, show the full map
zoom in A navigation command, decrease the Map scale by a fixed amount
zoom out A navigation command, increase the Map scale by a fixed amount
Tool Category Description
zoom A navigation tool (shortcut 'z') providing control of Map scale.
pan A navigation tool (shortcut 'p') providing control of Map location.
info Request information (shortcut 'i') for content at an indicated location.
edit An edit tool (shortcut 'e') allowing creation and modification of polygon, point or line information.
edit An edit tool (shortcut 'e') allowing the removal of Features.
Button Command Description
commit outgoing sync
revert rollback and clear current changes
     

Navigation commands and Tools retain a location history that one can navigate through using the Prevision and Next buttons.

Note: All directions assume a right-handed mouse; if a left-handed mouse is being used, and the system is aware that it is left-handed, then the left and right buttons perform the opposite functionality.

Navigation Tools

Back

Displays the previous view. The back button is active only after the view has been changed and is not saved between sessions.

Forward

Displays the next view. The forward button is active only after the back button has been pressed.

Show All

Sets the zoom so that all available data is displayed.

Refresh

If the display does not render correctly for some reason, the refresh button will force a re-render.

Zoom-In

The Zoom-In button zooms towards the data by a set amount. The center of the zoom is the center of the map.

Zoom-Out

The Zoom-Out button zooms away from the data by a set amount. The center of the zoom is the center of the map.

Zoom

The Zoom tool allows the user to zoom towards or away from the map.
The Zoom tool provides the following options:

An alternative to using the mouse wheel is holding alt- and moving the mouse left or right.

Pan Tools

A drag with the left mouse button down will move the map across the display.

Selection Tools

Selects the features that intersect with the box drawn.

Edit Tools

In uDig there are two concepts of selection. First is the “selection” for the lack of a better word. This is represented by a filter in each layer which identifies the selected features for that layer. The “selection” is all the selected features for all layers. The second type of selection is the “edit selection” there can only be one editable feature at a given time so one of the features in the selection is the current selected feature. When the feature editor is active the edit feature is drawn in red and the vertices are drawn as red boxes.

Geometry Editor

Permits vertices to be added, deleted and moved. The mouse cursor changes to indicate which function is possible.
To create a feature ensure that there is no edit feature selected and click anywhere on the map. A feature will be created of the correct type for the layer.

To deselect the current edit feature select the selection tool and click elsewhere on the map.

If a feature has been created or selected then the following functions are possible:

Feature Deletion

The Feature Deletion Tool allows features to be deleted. A feature can be deleted by clicking on a feature ( an intersection between a 3x3 pixel block and the feature is checked). The feature to be deleted will be drawn in red.

Map StatusBar

(c) Copyright (c) 2004,2005 Refractions Research Inc. and others.