RasterBandNodataRemover

Removes the existing nodata identifier from selected bands of a raster feature. Any values previously equal to the nodata value are considered valid data.

Jump to Configuration

典型的用途

  • 制作包含用于计算有效的Nodata值的单元格。
  • Making nodata cells visible in a visualization tool that otherwise renders them transparently.

How does it work?

RasterBandNodatareMover会收到栅格功能,并从任何所选频段删除Nodata属性。它不会改变单元格值。

具有当前Nodata值的单元格保留它们的值,并且这些值对于诸如表达式评估和统计分析的操作是有效的。

Nodata表示没有数据,并且对于大多数计算,将忽略具有Nodata值的单元格,并且在FME数据检查器和许多其他可视化工具中查看时是透明的。

如果栅格没有定义的Nodata属性,则它将不受此变压器的影响。

要选择特定频段,请使用RasterSelector在RasterBandNodataremover之前。

This transformer supports raster band selection. Palettes are unaffected.

Usage Notes

选择光栅变压器

FME拥有广泛的变形金机,用于使用光栅数据。它们通常可以作为与整个栅格,频带,小区或调色板合作,以及用于工作流控制或与矢量数据梳理光栅的那些。亚搏在线

有关光栅几何和属性的信息,请参阅罗斯克斯(IFMERaster)

组态

输入端口

输出Ports

参数

This transformer has no parameters.

编辑变压器参数

使用一组菜单选项,变压器参数s can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click除适用的参数旁边。有关更多信息,请参阅Transformer Parameter Menu Options

定义值

有几种方法来定义一个值供我使用n a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

参考

Processing Behavior

特征为基础

功能持有

没有

依赖性 没有
FME许可级别 FME专业版及以上
别名 RasterNodataRemover
历史
类别

罗斯克斯

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Examples may contain information licensed under the Open Government Licence – Vancouver