Reducing Cultivated Land to Forest and Grass Based on Conversion between Raster and Vector
Yang Jun · Journal of Liaoning Normal University · 2005
The AutoCAD format of topographic map is not convenient for query and retrieval,slope calculating and analysis.In land compilation in Lushun cultivated land with elevation greater than 60 meters and slope greater than 25 degrees must be restored to forest and grass.This article realized the conversion between raster and vector to determine the area of cultivated land to restore to forest and grass by combining MapInfo, Vertical Mapper and MapBasic.