smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld（算子）
名称
smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld — 具有任意方向轮廓或多边形的最小包围矩形。
签名
Herror smallest_rectangle2_xld(const Hobject XLD, double* Row, double* Column, double* Phi, double* Length1, double* Length2)
Herror T_smallest_rectangle2_xld(const Hobject XLD, Htuple* Row, Htuple* Column, Htuple* Phi, Htuple* Length1, Htuple* Length2)
void SmallestRectangle2Xld(const HObject& XLD, HTuple* Row, HTuple* Column, HTuple* Phi, HTuple* Length1, HTuple* Length2)
void HXLD::SmallestRectangle2Xld(HTuple* Row, HTuple* Column, HTuple* Phi, HTuple* Length1, HTuple* Length2) const
void HXLD::SmallestRectangle2Xld(double* Row, double* Column, double* Phi, double* Length1, double* Length2) const
static void HOperatorSet.SmallestRectangle2Xld(HObject XLD, out HTuple row, out HTuple column, out HTuple phi, out HTuple length1, out HTuple length2)
void HXLD.SmallestRectangle2Xld(out HTuple row, out HTuple column, out HTuple phi, out HTuple length1, out HTuple length2)
void HXLD.SmallestRectangle2Xld(out double row, out double column, out double phi, out double length1, out double length2)
def smallest_rectangle2_xld(xld: HObject) -> Tuple[Sequence[float], Sequence[float], Sequence[float], Sequence[float], Sequence[float]]
def smallest_rectangle2_xld_s(xld: HObject) -> Tuple[float, float, float, float, float]
描述
算子 smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld determines the smallest
enclosing rectangle of each input contour or polygon, i.e., the rectangle
with the smallest area of all rectangles containing the contour. For this
rectangle the center, the inclination, and the two radii are calculated.
如果传递多个轮廓或多边形，结果将按其在 XLDXLDXLDXLDXLDxld 中的顺序存储为元组。 In case of an empty contour all parameters
have the value 0.0 if no other behavior was set (see set_systemset_systemSetSystemSetSystemSetSystemset_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
XLDXLDXLDXLDXLDxld (输入对象) xld(-array) → objectHXLDHObjectHXLDHobject
待检查的轮廓或多边形。
RowRowRowRowrowrow (输出控制) rectangle2.center.y(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinate of the center point of the enclosing
rectangle.
ColumnColumnColumnColumncolumncolumn (输出控制) rectangle2.center.x(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinate of the center point of the
enclosing rectangle.
PhiPhiPhiPhiphiphi (输出控制) rectangle2.angle.rad(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Orientation of the enclosing rectangle
(arc measure)
Assertion:
- pi / 2 < Phi && Phi <= pi / 2
Length1Length1Length1Length1length1length_1 (输出控制) rectangle2.hwidth(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
First radius (half length) of the enclosing
rectangle.
Assertion:
Length1 >= 0.0
Length2Length2Length2Length2length2length_2 (输出控制) rectangle2.hheight(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Second radius (half width) of the enclosing
rectangle.
Assertion:
Length2 >= 0.0 && Length2 <= Length1
复杂度
If N is the number of contour points and C is the number of points
in the convex hull, the runtime complexity is O(N*ln(N)+C^2).
结果
smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld 在输入不为空时返回 2 ( H_MSG_TRUE )。当输入为空时，可设置行为通过 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>)。如有必要，则抛出异常。
可能的前趋
gen_contours_skeleton_xldgen_contours_skeleton_xldGenContoursSkeletonXldGenContoursSkeletonXldGenContoursSkeletonXldgen_contours_skeleton_xld,
edges_sub_pixedges_sub_pixEdgesSubPixEdgesSubPixEdgesSubPixedges_sub_pix,
threshold_sub_pixthreshold_sub_pixThresholdSubPixThresholdSubPixThresholdSubPixthreshold_sub_pix,
gen_contour_polygon_xldgen_contour_polygon_xldGenContourPolygonXldGenContourPolygonXldGenContourPolygonXldgen_contour_polygon_xld
可能的后继
gen_polygons_xldgen_polygons_xldGenPolygonsXldGenPolygonsXldGenPolygonsXldgen_polygons_xld
替代
smallest_rectangle1smallest_rectangle1SmallestRectangle1SmallestRectangle1SmallestRectangle1smallest_rectangle1,
shape_trans_xldshape_trans_xldShapeTransXldShapeTransXldShapeTransXldshape_trans_xld
另见
smallest_rectangle1smallest_rectangle1SmallestRectangle1SmallestRectangle1SmallestRectangle1smallest_rectangle1,
smallest_circlesmallest_circleSmallestCircleSmallestCircleSmallestCirclesmallest_circle,
elliptic_axis_xldelliptic_axis_xldEllipticAxisXldEllipticAxisXldEllipticAxisXldelliptic_axis_xld
模块
基础