smallest_rectangle1_xldsmallest_rectangle1_xldSmallestRectangle1XldSmallestRectangle1Xldsmallest_rectangle1_xld (算子名称)
名称
smallest_rectangle1_xldsmallest_rectangle1_xldSmallestRectangle1XldSmallestRectangle1Xldsmallest_rectangle1_xld — Enclosing rectangle parallel to the coordinate axes of contours or polygons.
参数签名
void SmallestRectangle1Xld(const HObject& XLD, HTuple* Row1, HTuple* Column1, HTuple* Row2, HTuple* Column2)
void HXLD::SmallestRectangle1Xld(HTuple* Row1, HTuple* Column1, HTuple* Row2, HTuple* Column2) const
void HXLD::SmallestRectangle1Xld(double* Row1, double* Column1, double* Row2, double* Column2) const
static void HOperatorSet.SmallestRectangle1Xld(HObject XLD, out HTuple row1, out HTuple column1, out HTuple row2, out HTuple column2)
void HXLD.SmallestRectangle1Xld(out HTuple row1, out HTuple column1, out HTuple row2, out HTuple column2)
void HXLD.SmallestRectangle1Xld(out double row1, out double column1, out double row2, out double column2)
def smallest_rectangle1_xld(xld: HObject) -> Tuple[Sequence[float], Sequence[float], Sequence[float], Sequence[float]]
def smallest_rectangle1_xld_s(xld: HObject) -> Tuple[float, float, float, float]
描述
The operator smallest_rectangle1_xldsmallest_rectangle1_xldSmallestRectangle1XldSmallestRectangle1XldSmallestRectangle1Xldsmallest_rectangle1_xld calculates the enclosing
rectangle (parallel to the coordinate axes) for each input contour or
polygon.
The enclosing rectangle is described by the coordinates of the corner
pixels (Row1Row1Row1Row1row1row_1,Column1Column1Column1Column1column1column_1,Row2Row2Row2Row2row2row_2,Column2Column2Column2Column2column2column_2)
If more than one contour or polygon is passed, the results are stored in
tuples in the same order as the respective contours or polygons in
XLDXLDXLDXLDXLDxld. In case of an empty contour all parameters have the value 0
if no other behavior was set (see set_systemset_systemSetSystemSetSystemSetSystemset_system).
注意
In case of empty contours the result of Row1Row1Row1Row1row1row_1,Column1Column1Column1Column1column1column_1,
Row2Row2Row2Row2row2row_2 and Column2Column2Column2Column2column2column_2 (all are 0) can lead to confusion.
运行信息
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
参数表
XLDXLDXLDXLDXLDxld (input_object) xld(-array) → objectHXLDHObjectHXLDHobject
Contours or polygons to be examined.
Row1Row1Row1Row1row1row_1 (output_control) rectangle.origin.y(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinate of upper left corner point of the
enclosing rectangle.
Column1Column1Column1Column1column1column_1 (output_control) rectangle.origin.x(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinate of upper left corner point of the
enclosing rectangle.
Row2Row2Row2Row2row2row_2 (output_control) rectangle.corner.y(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinate of lower right corner point of the
enclosing rectangle.
Column2Column2Column2Column2column2column_2 (output_control) rectangle.corner.x(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinate of lower right corner point of the
enclosing rectangle.
Complexity
If N is the number of contour points, the runtime complexity is
O(N).
结果
smallest_rectangle1_xldsmallest_rectangle1_xldSmallestRectangle1XldSmallestRectangle1XldSmallestRectangle1Xldsmallest_rectangle1_xld returns 2 (
H_MSG_TRUE)
if the input is not empty.
If the input is empty the behavior can be set via
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>). If
necessary, an exception is raised.
可能的前置算子
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
可能的后置算子
gen_polygons_xldgen_polygons_xldGenPolygonsXldGenPolygonsXldGenPolygonsXldgen_polygons_xld
可替代算子
height_width_ratio_xldheight_width_ratio_xldHeightWidthRatioXldHeightWidthRatioXldHeightWidthRatioXldheight_width_ratio_xld,
smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld,
shape_trans_xldshape_trans_xldShapeTransXldShapeTransXldShapeTransXldshape_trans_xld
参考其它
shape_trans_xldshape_trans_xldShapeTransXldShapeTransXldShapeTransXldshape_trans_xld,
smallest_rectangle2_xldsmallest_rectangle2_xldSmallestRectangle2XldSmallestRectangle2XldSmallestRectangle2Xldsmallest_rectangle2_xld,
smallest_circle_xldsmallest_circle_xldSmallestCircleXldSmallestCircleXldSmallestCircleXldsmallest_circle_xld,
elliptic_axis_xldelliptic_axis_xldEllipticAxisXldEllipticAxisXldEllipticAxisXldelliptic_axis_xld,
area_center_xldarea_center_xldAreaCenterXldAreaCenterXldAreaCenterXldarea_center_xld
模块
Foundation