moments_region_3rd moments_region_3rd MomentsRegion3rd MomentsRegion3rd moments_region_3rd （算子）
名称
moments_region_3rd moments_region_3rd MomentsRegion3rd MomentsRegion3rd moments_region_3rd
签名
Herror moments_region_3rd (const Hobject Regions M21 M12 M03 M30
Herror T_moments_region_3rd (const Hobject Regions M21 M12 M03 M30
def moments_region_3rd (regions
def moments_region_3rd_s (regions
描述
算子 moments_region_3rd moments_region_3rd MomentsRegion3rd MomentsRegion3rd MomentsRegion3rd moments_region_3rd M21 M21 M21 M21 m21 m21 M12 M12 M12 M12 m12 m12 M03 M03 M03 M03 m03 m03 M30 M30 M30 M30 m30 m30
Calculation：
x and y are the coordinates
of the center of a region R with the area Z.
Then the moments
wherein are
If more than one region is passed the results are stored in tuples, the index
of a value in the tuple corresponding to the index of a region in the input.
In case of empty region all parameters have the value 0.0 if no other
behavior was set (see set_system set_system SetSystem SetSystem SetSystem set_system
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
Regions Regions Regions Regions regions regions region(-array) → object HRegion HObject HRegion Hobject
Regions to be examined.
M21 M21 M21 M21 m21 m21 real(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Moment of 3rd order (line-dependent).
M12 M12 M12 M12 m12 m12 real(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Moment of 3rd order (column-dependent).
M03 M03 M03 M03 m03 m03 real(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Moment of 3rd order (column-dependent).
M30 M30 M30 M30 m30 m30 real(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Moment of 3rd order (line-dependent).
复杂度
If Z is the area of the region the mean runtime
complexity is O(sqrt(Z)).
结果
算子 moments_region_3rd moments_region_3rd MomentsRegion3rd MomentsRegion3rd MomentsRegion3rd moments_region_3rd 2 ( H_MSG_TRUE )。当输入为空（无可用输入区域）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>) 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>)
可能的前趋
threshold threshold Threshold Threshold Threshold threshold regiongrowing regiongrowing Regiongrowing Regiongrowing Regiongrowing regiongrowing connection connection Connection Connection Connection connection
替代
moments_region_2nd moments_region_2nd MomentsRegion2nd MomentsRegion2nd MomentsRegion2nd moments_region_2nd
另见
elliptic_axis elliptic_axis EllipticAxis EllipticAxis EllipticAxis elliptic_axis
模块
基础