RandomNumberGenerator—ArcGIS Pro

Zusammenfassung

Determines the type and seed that will be used to create random numbers.

Diskussion

Vorversion:

arcgis.rand() wird ab ArcGIS Pro 2.0 nicht mehr unterstützt. Die Funktion arcgis.rand() wurde primär zur Unterstützung der Erstellung zufälliger Werte mit den Werkzeugen Wert berechnen und Feld berechnen, der Umgebungseinstellung Zufallszahlengenerator und der Funktion CreateRandomValueGenerator verwendet. Stattdessen sollten vergleichbare Funktionen unter Verwendung des random-Moduls von Python verwendet werden.

Methodenübersicht

Methode Erläuterung

exportToString ()

Methode	Erläuterung
exportToString ()	Exports the object to its string representation.
loadFromString (string)	Restore or update the spatial reference object using a WKT string. The exportToString method can be used to export a WKT string representation of the spatial reference. Using a WKT string with a horizontal coordinate system. `# The following string is the WKT for the # Geographic Coordinate system "WGS 1984" (factory code=4326) wkt = 'GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\ PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]];\ -400 -400 1000000000;-100000 10000;-100000 10000;8.98315284119522E-09;\ 0.001;0.001;IsHighPrecision' sr = arcpy.SpatialReference() sr.loadFromString(wkt)` Using a WKT string with a horizontal and vertical coordinate system. Note that the vertical coordinate system is defined in the VERTCS section of the WKT. # The following string is the WKT for the # Geographic Coordinate system "WGS 1984" (factory code=4326), # with a vertical coordinate system "WGS 1984" (factory code=115700) wkt = 'GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\ PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],\ VERTCS["WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\ PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]];\ -400 -400 1000000000;-100000 10000;-100000 10000;8.98315284119522E-09;\ 0.001;0.001;IsHighPrecision' sr = arcpy.SpatialReference() sr.loadFromString(wkt)

Exports the object to its string representation.

loadFromString (string)

Restore or update the spatial reference object using a WKT string. The exportToString method can be used to export a WKT string representation of the spatial reference.

Using a WKT string with a horizontal coordinate system.

# The following string is the WKT for the 
# Geographic Coordinate system "WGS 1984" (factory code=4326)
wkt = 'GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\
              PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]];\
              -400 -400 1000000000;-100000 10000;-100000 10000;8.98315284119522E-09;\
              0.001;0.001;IsHighPrecision'

sr = arcpy.SpatialReference()
sr.loadFromString(wkt)

Using a WKT string with a horizontal and vertical coordinate system. Note that the vertical coordinate system is defined in the VERTCS section of the WKT.

# The following string is the WKT for the 
# Geographic Coordinate system "WGS 1984" (factory code=4326), 
# with a vertical coordinate system "WGS 1984" (factory code=115700)

wkt = 'GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\
              PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],\
              VERTCS["WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],\
              PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]];\
              -400 -400 1000000000;-100000 10000;-100000 10000;8.98315284119522E-09;\
              0.001;0.001;IsHighPrecision'

sr = arcpy.SpatialReference()
sr.loadFromString(wkt)

Methoden

exportToString ()

Rückgabewert

Datentyp	Erläuterung
String	The WKT string representation of the object.

loadFromString (string)

Parameter	Erläuterung	Datentyp
string	The WKT string representation of the object.	String