#Arcmap raster calculator license

To avoid this potential problem, use appropriate parentheses in the expression so that the execution order of the operators is explicitly defined. When multiple Relational and/or Boolean operators are used consecutively in a single expression, in some cases it may fail to execute. To change the order of execution, use parentheses. Therefore, when Boolean operators are used in the same expression as Relational operators, the Boolean operators will be executed first. You can use parentheses to control the execution order.Д«oolean ( ~, &, ^, |) operators have a higher precedence level than Relational (, >=, =, !=) operators. For more information on operator precedence, see operator precedence table. The operator with the highest precedence value will be executed first. When multiple operators are used in an expression, they are not necessarily executed in left-to-right order. To create a raster with cells of a constant value, specify the appropriate extent and cell size environment settings and enter the numerical value into the expression. When the tool is executed, the resulting raster output will be clipped based on the specified extent. You can easily clip a raster dataset by setting the extent environment and specifying the input raster name in the expression.

You do not need to cast input data as a Raster object when using operators.

You do not need to put the output raster name or the = sign in the expression because the output name is specified in the Output raster parameter.

The tool supports the standard Map Algebra syntax that is used in Python scripting. If the capitalization is incorrect, the expression will be invalid and fail to execute because Python is case sensitive.ДЄn example of the general format of a Map Algebra expression using using geoprocessing tools is: When typing tool names, be sure to check the tool name syntax. CheckOutExtension ( 'Spatial' ) # Execute Pick outPick = Pick ( inPositionRaster, ) # Save the output outPick.

#Arcmap raster calculator license

workspace = 'C:/sapyexamples/data' # Set local variables inPositionRas = 'cost' inRas01 = 'degs' inRas02 = 'negs' inRas03 = 'fourgrd' # Check out the ArcGIS Spatial Analyst extension license arcpy.

# Requirements: Spatial Analyst Extension # Import system modules import arcpy from arcpy import env from arcpy.sa import * # Set environment settings env. # Name: Pick_Ex_02.py # Description: Assigns output values using one of a list of rasters # determined by the value of an input raster. Syntax Pick (in_position_raster, in_rasters_or_constants) Parameter See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool. If they are all integer, the output raster will be integer. If any of the rasters in the input list is floating point, the output raster will be floating point.

If the position raster is floating point, the values will be truncated to be integers before they are processed.ДЄny cell with a NoData value on the position raster will receive NoData on the output raster. If the position value is larger than the number of rasters in the list, the result will be NoData. If a cell value in the position raster is zero or negative, the result will be NoData. If the order of rasters changes, the results will change. The order of the input list is relevant for this tool. If the position input has a value of 2, the output value will come from the second input in the raster list, and so on. For example, if a cell in the position raster has a value of 1, the value from the first input in the raster list will be used for the output cell value. The value of each cell of the position raster determines which input will be used to obtain the output raster value. Illustration OutRas = Pick(InRas1, ) Usage The value from a position raster is used to determine from which raster in a list of input rasters the output cell value will be obtained.