distance_ccdistance_ccDistanceCcDistanceCcdistance_cc (算子名称)

名称

distance_ccdistance_ccDistanceCcDistanceCcdistance_cc — Calculate the distance between two contours.

参数签名

描述

该算子 distance_ccdistance_ccDistanceCcDistanceCcDistanceCcdistance_cc calculates the minimum and maximum distance between the base points of two contours ( Contour1Contour1Contour1Contour1contour1contour_1 and Contour2Contour2Contour2Contour2contour2contour_2). The parameters DistanceMinDistanceMinDistanceMinDistanceMindistanceMindistance_min and DistanceMaxDistanceMaxDistanceMaxDistanceMaxdistanceMaxdistance_max contain the resulting distance.

The parameter ModeModeModeModemodemode sets the type of computing the distance: 'point_to_point'"point_to_point""point_to_point""point_to_point""point_to_point""point_to_point" only determines the minimum and maximum distance between the base points of the contours. This results in faster algorithm, but may lead to inaccurate minimum distances. In contrast, 'point_to_segment'"point_to_segment""point_to_segment""point_to_segment""point_to_segment""point_to_segment" determines the actual minimum distance between the contour segments.

In both cases, the search algorithm has a quadratic complexity (n*n). If only the minimum distance is required, 该算子 distance_cc_mindistance_cc_minDistanceCcMinDistanceCcMinDistanceCcMindistance_cc_min can be used alternatively since it offers algorithms with a complexity of n*log(n).

注意

Both iconic input parameters must contain the same number of contours.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 未经并行化处理。

参数表

例程 (C)

gen_contour_polygon_rounded_xld(Cont1, [0,100,100,0,0], [0,0,100,100,0],
                                [50,50,50,50,50], 0.5);
gen_contour_polygon_rounded_xld(Cont2, [41,91,91,41,41], [41,41,91,91,41],
                                [25,25,25,25,25], 0.5);
distance_cc(Cont1, Cont2, 'point_to_point', &distance_min, &distance_max);

结果

distance_ccdistance_ccDistanceCcDistanceCcDistanceCcdistance_cc returns 2 ( H_MSG_TRUE) .

可替代算子

distance_scdistance_scDistanceScDistanceScDistanceScdistance_sc, distance_pcdistance_pcDistancePcDistancePcDistancePcdistance_pc, distance_cc_mindistance_cc_minDistanceCcMinDistanceCcMinDistanceCcMindistance_cc_min, distance_contours_xlddistance_contours_xldDistanceContoursXldDistanceContoursXldDistanceContoursXlddistance_contours_xld

参考其它

distance_srdistance_srDistanceSrDistanceSrDistanceSrdistance_sr, distance_prdistance_prDistancePrDistancePrDistancePrdistance_pr

模块

Foundation

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