distance_srdistance_srDistanceSrDistanceSrdistance_sr (算子)

名称

distance_srdistance_srDistanceSrDistanceSrdistance_sr — 计算一条线段和一个区域之间的距离。

签名

distance_sr(Region : : Row1, Column1, Row2, Column2 : DistanceMin, DistanceMax)

描述

算子 distance_srdistance_srDistanceSrDistanceSrDistanceSrdistance_sr calculates the distance between a line segment and one region. Row1Row1Row1Row1row1row_1, Column1Column1Column1Column1column1column_1, Row2Row2Row2Row2row2row_2, Column2Column2Column2Column2column2column_2 are the start and end coordinates of a line segment. The parameters DistanceMinDistanceMinDistanceMinDistanceMindistanceMindistance_min and DistanceMaxDistanceMaxDistanceMaxDistanceMaxdistanceMaxdistance_max contain the resulting distances.

注意

To enhance distance_srdistance_srDistanceSrDistanceSrDistanceSrdistance_sr, holes are ignored.

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）。
未采用并行化处理。

参数

RegionRegionRegionRegionregionregion (输入对象) region → object

Input region.

Row1Row1Row1Row1row1row_1 (输入控制) point.y(-array) → (real / integer)

Row coordinate of the first point of the line segment.

Column1Column1Column1Column1column1column_1 (输入控制) point.x(-array) → (real / integer)

Column coordinate of the first point of the line segment.

Row2Row2Row2Row2row2row_2 (输入控制) point.y(-array) → (real / integer)

Row coordinate of the second point of the line segment.

Column2Column2Column2Column2column2column_2 (输入控制) point.x(-array) → (real / integer)

Column coordinate of the second point of the line segment.

DistanceMinDistanceMinDistanceMinDistanceMindistanceMindistance_min (输出控制) real(-array) → (real)

Minimum distance between the line segment and the region.

DistanceMaxDistanceMaxDistanceMaxDistanceMaxdistanceMaxdistance_max (输出控制) real(-array) → (real)

Maximum distance between the line segment and the region.

示例（HDevelop）

gen_circle (Circle, 200, 200, 100.5)
Column1 := 300
Column2 := 400
for Row := 50 to 350 by 50
  gen_contour_polygon_xld (Line, [Row,Row], [Column1,Column2])
  distance_sr (Circle, Row, Column1, Row, Column2, DistanceMin, DistanceMax)
endfor

示例（C）

threshold(Image, &Region, 0.0, 120.0);
distance_sr(Region,row1,column1,row2,column2
            &distance_min, &distance_max);

示例（HDevelop）

gen_circle (Circle, 200, 200, 100.5)
Column1 := 300
Column2 := 400
for Row := 50 to 350 by 50
  gen_contour_polygon_xld (Line, [Row,Row], [Column1,Column2])
  distance_sr (Circle, Row, Column1, Row, Column2, DistanceMin, DistanceMax)
endfor

示例（HDevelop）

gen_circle (Circle, 200, 200, 100.5)
Column1 := 300
Column2 := 400
for Row := 50 to 350 by 50
  gen_contour_polygon_xld (Line, [Row,Row], [Column1,Column2])
  distance_sr (Circle, Row, Column1, Row, Column2, DistanceMin, DistanceMax)
endfor

示例（HDevelop）

gen_circle (Circle, 200, 200, 100.5)
Column1 := 300
Column2 := 400
for Row := 50 to 350 by 50
  gen_contour_polygon_xld (Line, [Row,Row], [Column1,Column2])
  distance_sr (Circle, Row, Column1, Row, Column2, DistanceMin, DistanceMax)
endfor

结果

distance_srdistance_srDistanceSrDistanceSrDistanceSrdistance_sr 返回 2 ( H_MSG_TRUE )。

替代

distance_scdistance_scDistanceScDistanceScDistanceScdistance_sc, distance_lrdistance_lrDistanceLrDistanceLrDistanceLrdistance_lr, distance_prdistance_prDistancePrDistancePrDistancePrdistance_pr, diameter_regiondiameter_regionDiameterRegionDiameterRegionDiameterRegiondiameter_region

另见

hamming_distancehamming_distanceHammingDistanceHammingDistanceHammingDistancehamming_distance, select_region_pointselect_region_pointSelectRegionPointSelectRegionPointSelectRegionPointselect_region_point, test_region_pointtest_region_pointTestRegionPointTestRegionPointTestRegionPointtest_region_point, smallest_rectangle2smallest_rectangle2SmallestRectangle2SmallestRectangle2SmallestRectangle2smallest_rectangle2

模块

基础

算子