12/17/2023 0 Comments Invert raster arcmap raster calculator![]() ![]() The Map Algebra used in Raster Calculator has a syntax, or a set of rules, that must be followed to create a valid expression. Map Algebra is a simple and powerful algebra with which you canĮxecute Image Analyst tools, operators, and functions to See the following section to learn more about the syntax rules for Map Algebra. The expression must be entered with valid syntax. The expression is the Map Algebra expression to be executed. By selecting these symbols, that operator will be entered into the expression where the pointer is currently positioned. The operators in the list allow you to enter mathematical (addition, division, and so on) and logical (greater than, equal to, and so forth) operators into the expression. A tool can be placed anywhere in the expression, but it should be placed in a position that produces valid Map Algebra syntax. The remaining input required by the tool must then be entered. By clicking a tool in the list, the tool name and open and close parentheses will be placed in the expression where the pointer is currently positioned. The Tools list is a convenient selection of tools that can be used in the Map Algebra expression. When the tool is used in ModelBuilder the raster list will also contain Raster model variables. ![]() The raster list will contain the layers in the Contents and datasets added with the Add raster button. ![]() The input Rasters list identifies the input that can be used in the Map Algebra expression. Raster Calculator tool dialog box example Rasters There are three main areas in the tool dialog box that are used to create a Map Algebra expression: Rasters, Tools and Expression When multiple tools or operators are used in one expression, the performance of this equation will generally be faster than executing each of the operators or tools individually. Raster Calculator is designed to execute a single-line algebraic expression using multiple tools and operators. Use multiple Spatial Analyst tools in a single expression.Apply Spatial Analyst operators on three or more inputs in a single expression.Support the use of variables in Map Algebra when in ModelBuilder.Implement single-line algebraic expressions.The Raster Calculator tool is specifically designed to offer the following benefits: To learn more about scripting and Map Algebra, see the help topic What is Map Algebra? in the Spatial Analyst extension help. The Raster Calculator tool is not intended to be used in scripting environments and is not available in the standard Spatial Analyst ArcPy module. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |