partition_rectanglepartition_rectanglePartitionRectanglePartitionRectanglepartition_rectangle划分矩形（算子）

名称

partition_rectanglepartition_rectanglePartitionRectanglePartitionRectanglepartition_rectangle — 将一个区域划分为大小大致相等的矩形。

签名

描述

partition_rectanglepartition_rectanglePartitionRectanglePartitionRectanglePartitionRectanglepartition_rectangle partitions the input region into rectangles having an extent of WidthWidthWidthWidthwidthwidth times HeightHeightHeightHeightheightheight. The rectangles are returned in PartitionedPartitionedPartitionedPartitionedpartitionedpartitioned. The region is always split into rectangles of approximately equal size. If this is not possible with the requested rectangle size, then WidthWidthWidthWidthwidthwidth and HeightHeightHeightHeightheightheight are adapted so that the size of the resulting rectangles is approximately equal. If the region is smaller than the given size, its output remains unchanged. A partition is only done if the size of the region is at least 1.5 times the size of the rectangle given by the parameters.

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 在元组级别上自动并行化。

参数

结果

partition_rectanglepartition_rectanglePartitionRectanglePartitionRectanglePartitionRectanglepartition_rectangle 在所有参数正确时返回 2 ( H_MSG_TRUE )。当输入为空（未指定区域）时，可设置行为通过算子 set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)，当输入区域为空时，可设置行为通过算子 set_system('empty_region_result',<Result>)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)set_system("empty_region_result",<Result>)，以及当结果区域为空时，可设置行为通过算子 set_system('store_empty_region',<'true'/'false'>)set_system("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)set_system("store_empty_region",<"true"/"false">)。如有必要，则抛出异常。

可能的前趋

thresholdthresholdThresholdThresholdThresholdthreshold, connectionconnectionConnectionConnectionConnectionconnection

替代

partition_dynamicpartition_dynamicPartitionDynamicPartitionDynamicPartitionDynamicpartition_dynamic

另见

intersectionintersectionIntersectionIntersectionIntersectionintersection, smallest_rectangle1smallest_rectangle1SmallestRectangle1SmallestRectangle1SmallestRectangle1smallest_rectangle1, shape_transshape_transShapeTransShapeTransShapeTransshape_trans, clip_regionclip_regionClipRegionClipRegionClipRegionclip_region

模块

基础