Paper Using Visual Basic to Enhance ArcInfo ArcGRID

Author: Chip Hankley
Organization: Wisconsin Geological and Natural History Survey

3817 Mineral Point Road
Madison, WI 53705-5100
USA

Phone: 608-262-2320
Fax: 608-262-8086
dwhankley@facstaff.wisc.edu

Although the GRID module of ArcInfo provides a flexible modeling environment, some operations or conditions may result in extraordinarily slow GRID calculations. Using the multidimensional array capabilities of Visual Basic (VB) and Visual Basic for Applications (VBA) can mimic the raster environment of GRID, yet perform spatial operations much faster. This paper demonstrates some of the performance differences between GRID and VB as well as simple techniques for transferring GRID data between ArcInfo and VB/VBA.