RasterBandNodataSetter

输入功能必须仅包含光栅几何形状。

指定要在输入栅格上设置的Nodata值的数值。此参数设置Nodata值，如果存在，则丢弃原始的Nodata值。

如果the raster's bands have palettes, the function will succeed in setting a new nodata value only if the value is of a key that already exists on the band. To replace all occurrences of the original nodata value with a new value, use theRasterCellValueReplacer.

如果不，栅格中没有更改栅格中的单元值。如果是的，用于等于旧的Nodata值的单元格将改变为新的Nodata值。

例如，考虑带有值的光栅[1 2 3]，其中nodata值最初是最初的1and we are setting it to2.

如果this option is不, the raster will still have values[1 2 3], and2is the new nodata value. That is, the cell with a value of1以前是Nodata现在是有效的价值。

如果此选项设置为是的, the raster will have values[2 2 3], and2is the new nodata value. That is, the cell with a value of1that previously was nodata is still nodata, but now has a different raw value.