<< Click to Display Table of Contents >> Navigation:  Chapter 10 Gridding and Contouring > Contour Maps > Editing a Contour Map > Grids > Grid Blanking

 

Area of the grid can be blanked so no node values are calculated and no contour lines are drawn across them. This is useful in areas where there are no data values; such as, under buildings. To blank an area of the grid either select Edit > Grid Blanking on click on the Grid Blanking button on the toolbar. Then draw a polygon around the area to be blanked.