CompuServe Messages

James: VistaPro will render to whatever detail the data has. Most USGS data which is used with VistaPro is 30 meters between data points (7.5 minute data) or 90 meters between data points (1 degree data). This is fine for looking at mountain scenes but you can lose a baseball infield between data points. If you have finer resolution data in a binary array of elevations, VistaPro will handle it, you will just need to select the appropriate vertical scale factor. VistaPro can handle arrays up to 2050×2050 data points. As to admissability, I would guess that it would deal more with the data's accuracy, as most landscape programs will display at least what you give them. VistaPro ascetically (sp?) fills in the area between data points which is often just a flat plane with normal polygon rendering. Either way is not a true representation of the missing data. VistaPro guesses fractally while others use interpolation. Clint <VRLI>