栅格波段属性

摘要

Describe 函数可返回栅格波段的以下属性。同时还支持表属性和数据集属性。

栅格波段可返回“RasterBand”的 dataType。

属性

属性	说明	数据类型
height （只读）	The number of rows	Integer
isInteger （只读）	Indicates whether the raster band has integer type	Boolean
meanCellHeight （只读）	The cell size in y direction	Double
meanCellWidth （只读）	The cell size in x direction	Double
noDataValue （只读）	The NoData value of the raster band	String
pixelType （只读）	The pixel type U1 —1 bit U2 —2 bits U4 —4 bits U8 —Unsigned 8 bit integers S8 —8 bit integers U16 —Unsigned 16 bit integers S16 —16 bit integers U32 —Unsigned 32 bit integers S32 —32 bit integers F32 —Single precision floating point F64 —Double precision floating point	String
primaryField （只读）	The index of the field	Integer
tableType （只读）	The class names of the table Value —Values in the table are used for values only, not for indexing. Index —Values in the table are used as indexes in the raster table. Invalid —Values are invalid.	String
width （只读）	The number of columns	Integer

代码示例

Raster Band properties example (stand-alone script)

The following stand-alone script displays some properties for a raster band.

import arcpy

# Create a Describe object from the raster band
#
desc = arcpy.Describe("C:/data/preston.img/Band_1")

# Print some raster band properties
#
print "Height: %d" % desc.height
print "Width:  %d" % desc.width
print "Integer Raster: %s" % desc.isInteger