Grid Editor Tool

This is an old revision of the document!

Both 2D grids (surfaces) and 3D Grids can be edited directly in 2D maps, 2D profile windows, and in 3D using interactive editor tools. See Editing Data for general information about editing data in GeoScene3D. Both 2D and 3D grids are edited using the same editor.

When an edit session is started for a surface or 3D Grid the Grid Editor dialog is shown. When the dialog is visible the tool is active, and the surface or 3D Grid can be edited.

While an edit session is active all changes are kept in memory. At any time during the edit session a snapshot of the grid can be exported to a file.

NOTE: The Grid Editor is affective only within the current scene extent. If the current scene extent does not cover the full extent of the edited grid source file the full grid will be update from the currently edited grid. Beware of this when editing the grid close to the edge.

All edit operations are saved in the editor tools log. While editing the individual edits may be undone or redone.

When editing 2D grids the node elevation is changed. When editing 3D grids the node value is changed. 2D grids are allways floating point value grids whereas 3D grids may be either floating point or discrete value grids, e.g., lithology. The availability of the grid editor form controls change according to the grid format. For floating point grids the node elevation or value is changed numeically whereas discrete value grid values are changed by assigning a symbol from a symbol list.

Performance

Only Surfer Binary grid version 7 (default in GeoScene3D) can be edited. If this format is used only the edited section of the grid is written back to the source which is a lot faster than writing the entire grid.

Tools

Editing is done by moving and applying a tool that applies an algorithm within a geometry. The geometry of the tool is displayed in 3D Viewers, maps, profile windows and in a sperate window ( Tool Algorithm Preview ). For 2D grids the 3D Viewer window preview show the grid as it will look after the tool is applied. For 3D grids the 3D Viewer window shows the tool geometry only.

The tool may be moved with the arrow keys, by entering a coordinate, or with the mouse in 3D Viewers, profile windows, or maps. Press the apply button to apply the tool at the current position. In 3D the tool is moved by dragging with the mouse or with CTRL+Click. In 3D the tool may be applied by double clicking to tool handle or geometry preview.

The easiest way to use the tool is probably by using dedicated mouse tools in 3D viewers, profile windows, and map windows (the tools for the 3D viewer windows are found in the main toolbar). Tools for profiles and map windows are found in the profile and map windows respectively. I all cases the tools are identical, but the result is slightly different because of the different geometry the three environments offer. The mouse tools are described below.

Move Grid Edit Tool: