Reduces a raster to a subset of its original size. This is essentially a clipping operation using pixel bounds instead of ground coordinates.
Parameters
Start Column, Start Row
These parameters specify the position in the input raster from which the subset will be taken.
Number of Columns, Number of Rows
These parameters specify the size of the subset in cells to be taken from the raster. They do not include any padding values. These values must be greater than 0 for the input to be valid.
Padding Parameters
填充参数规定了在栅格的子集部分周围应放置多少行中的填充行和列。
使用说明
该变压器不受光栅频段和调色板选择的影响。
编辑变压器参数
使用一组菜单选项，可以通过引用工作区中的其他元素来分配变压器参数。一些变压器也可提供更高级的功能，例如高级编辑器和算术编辑器。要访问这些选项的菜单，请单击
beside the applicable parameter. For more information, see变压器参数菜单选项.
变压器类别
FME Licensing Level
FME Professional edition and above
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TagsKeywords: raster grid band clip subset