![]() ![]() The actual output is presented, as well as the individual component polygons separately. For example, if you have a raster with values between 0 and 575 and your contour interval is 250, the following are the various output feature classes that will be created. Specifying a base contour does not prevent contours from being created above or below that value.Ĭontour type is used to produce either contour lines or polygons. ![]() The values to be contoured are 10, 25, 40, 55, and so on. In this case, 10 is used for the base contour and 15 is the contour interval. Smoother but less accurate contours can be obtained by preprocessing the input raster with a Focal Statistics operation with the MEAN option or the Filter tool with the LOW option.Ī base contour is used, for example, to create contours every 15 meters, starting at 10 meters. Negative contour intervals are not allowed. The contour values will be negative in such areas. However, the contour polygons are extrapolated to the outer edge of the raster when Contour type is not equal to CONTOUR.Ĭontours can be generated in areas of negative raster values. As an alternative to edgematching, you can merge the adjacent rasters before computing contours. Learn more about how Contouring works UsageĬontours do not extend beyond the spatial extent of the raster, and they are not generated in areas of NoData therefore, adjacent contour inputs should first be edgematched into a continuous feature dataset. Creates a feature class of contours from a raster surface. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |