Grids can be visualized in many different ways in Geocap. See ... for details Visualizing Grids chapter for an overview.
One common problem our users will encounter is that large grids will not display in full resolution in some display algorithms. Instead a course desimated version of the grid is displayed. A decimation is performed on large grids in some visualization algorithms in order to prevent the computer of running out of memory. When you display a grid, you can see if the grid has been decimated in the lower left corner of the Geocap window. It will display something like the following text: "Original x y inc: 300 300 Decimated x y inc 1000 1000" This means that the original grid increment was 300 meters, but it has been decimated to 1000 meters for the display.
Here is one way to increase the resolution of the display in these display algorithms. In order to get a higher resolution in a smaller area of the grid, you can do the following operation.
- - set the graphics window in 2D mode
- - pan/zoom to the area where you want more detail.
- - redisplay the grid
- - return the graphcis window to 3D mode
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