Booleana And (Spatial Analyst)
Resumen
Ejecuta una operación booleana And sobre los valores de celda de dos rásteres de entrada.
Si ambos valores de entrada son verdaderos (distintos de cero), el valor de salida es 1. Si una o ambas entradas son falsas (cero), la salida es 0.
Más información acerca de cómo funcionan las herramientas de matemática booleana
Ilustración
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OutRas = BooleanAnd(InRas1, InRas2) |
Uso
The Boolean math tools interpret the inputs as Boolean values, where non-zero values are considered true, and zero is considered false.
Two inputs are necessary for this Boolean evaluation to take place.
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The order of inputs is irrelevant for this tool.
If the input values are floating point, they are converted to integer values of either 0 or 1 before the operation is performed. If the input value is a floating point 0.0, it is converted to an integer 0. If the input is any value other than 0.0, it is converted to be an integer 1. For example, input float values of 0.6, 32.22 and -4.2 will all be treated as being 1. The output values are always integer.
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En Álgebra de mapas, el símbolo del operador equivalente para esta herramienta es "&" (vínculo).
Sintaxis
| Parámetro | Explicación | Tipo de datos |
in_raster_or_constant1 | The first input to use in this Boolean operation. A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment. | Raster Layer | Constant |
in_raster_or_constant2 | The second input to use in this Boolean operation. A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment. | Raster Layer | Constant |
Valor de retorno
| Nombre | Explicación | Tipo de datos |
| out_raster |
The output raster. The output values will be either 0 or 1. | Raster |
Ejemplo de código
Este ejemplo realiza una operación booleana And sobre dos rásteres GRID y saca el resultado como un ráster IMG.
import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outBooleanAnd = BooleanAnd("degs", "negs")
outBooleanAnd.save("C:/sapyexamples/output/outbooland.img")
Este ejemplo realiza una operación And booleana en dos rásteres GRID.
# Name: BooleanAnd_Ex_02.py
# Description: Performs a Boolean And operation on the cell values
# of two input rasters
# Requirements: Spatial Analyst Extension
# Import system modules
import arcpy
from arcpy import env
from arcpy.sa import *
# Set environment settings
env.workspace = "C:/sapyexamples/data"
# Set local variables
inRaster1 = "degs"
inRaster2 = "negs"
# Check out the ArcGIS Spatial Analyst extension license
arcpy.CheckOutExtension("Spatial")
# Execute BooleanAnd
outBooleanAnd = BooleanAnd(inRaster1, inRaster2)
# Save the output
outBooleanAnd.save("C:/sapyexamples/output/outbooland")