ArcInfo GRID File Interface - A Plugin for GenesisII

Function
This plugin imports and exports ArcInfo GRID format files. This ASCII raster file format is a simple format that is used to transfer raster data between various GIS applications.

When importing a new GenesisII grid is created with the correct dimensions and georeferencing information to hold the imported data.

Setting up the plugin
Simply copy the arcgrid.glg file to your GenesisII plugins directory.

Options
The plugin displays a dialog box to control import parameters. The dialog contains several sections...

Import
These controls are used to import data....

• Grid file: The Arcview grid file to be imported. Use the ellipsis button to select the file. An extension of .asc is expected.
• Set undefined height to default: If this box is checked then all undefined heights read from the file are set to the value entered in the default height box. When unchecked undefined heights are imported as null.
• Default Height: Height to use for undefined heights.
• Import: This button is enabled when a file has been selected. Click to proceed wth the import.

Once imported height information can be viewed and manipulated in the Landscape Editor.

Export
These controls are used to export data....

• Grid file: The Arcview grid file to be exported. Use the ellipsis button to select the file. An extension of .asc is used by default.
• Default Height: Height to use for undefined heights. Defaults to -9999
• Export: This button is enabled when a file has been selected. Click to proceed wth the export.

Action
This section contains progress feedback controls and the Exit button

File Format
The plugin uses the following format for export and expects the imported file to be in the same format. Identifiers are all case insensitive and floating point values may be used for all numeric entries with the exception of column and row count.