NumericRasterizer.

如果是Group By参数设置为属性列表，将生成每组一个栅格。

笔记:How parallel processing works with FME: see关于并行处理有关详细信息。

此参数确定变压器是否应跨行进程执行工作。如果启用了，将为每个组的组启动一个过程Group Byparameter.

并行处理水平

For example, on a quad-core machine, minimal parallelism will result in two simultaneous FME processes. Extreme parallelism on an 8-core machine would result in 16 simultaneous processes.

You can experiment with this feature and view the information in the Windows Task Manager and the Workbench Log window.

No: This is the default behavior. Processing will only occur in this transformer once all input is present.

By Group: This transformer will process input groups in order. Changes on the value of theGroup By参数的输入流将触发批量processing on the currently accumulating group. This will improve overall speed if groups are large/complex, but could cause undesired behavior if input groups are not truly ordered.

要设置输出栅格的大小，请指定尺寸或单元格大小。

To set the output raster size using dimensions, set theSize SpecificationtoRowscolumns.and specify values for both the列数andNumber of Rows。

To set the output raster size using cell size, set theSize SpecificationtoCellSizeand specify values for both theX Cell SpacingandY细胞间距。

Sets the interpretation of the output raster.

Sets the background value of the raster.

如果这个设置Yes，背景值也将被标记为产生的频带的Nodata值。

如果是抗锯齿参数是Yes, the output lines will be smoothed using an anti-aliasing algorithm.

该参数是从线段或多边形顶点到要呈现的像素的最大归一成距距离。例如，1.0的容差将绘制输入矢量线触摸的所有像素，而0.0将仅绘制输入矢量线直接通过其中心的那些像素。只有在抗锯齿关闭时才只能选择宽容。

如果是Ground Extents参数是set toUse input data ground extents, which means the extents are not explicitly specified, the output raster extents will be determined by the union of the bounding boxes of the valid input vector features. If theGround Extents参数是set toSpecify ground extents， 剩余的Ground Extents参数用于指定输出栅格的范围。

笔记:笔记: The raster extent is absolute, measured from the outer edges of the border row and column pixels.

This specifies the minimum x value of the output raster. It is used when theGround Extents参数是set toSpecify ground extents。

This specifies the minimum y value of the output raster. It is used when theGround Extents参数是set toSpecify ground extents。

这指定了输出栅格的最大X值。它是使用的Ground Extents参数是set toSpecify ground extents。

This specifies the maximum y value of the output raster. It is used when theGround Extents参数是set toSpecify ground extents。