fit_circle_contour_xld fit_circle_contour_xld FitCircleContourXld FitCircleContourXld fit_circle_contour_xld (算子)
名称
fit_circle_contour_xld fit_circle_contour_xld FitCircleContourXld FitCircleContourXld fit_circle_contour_xld
签名
fit_circle_contour_xld (Contours Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
Herror fit_circle_contour_xld (const Hobject Contours Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
Herror T_fit_circle_contour_xld (const Hobject Contours Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
void FitCircleContourXld (const HObject& Contours Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
void HXLDCont ::FitCircleContourXld (const HString& Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
void HXLDCont ::FitCircleContourXld (const HString& Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
void HXLDCont ::FitCircleContourXld (const char* Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
void HXLDCont ::FitCircleContourXld (const wchar_t* Algorithm MaxNumPoints MaxClosureDist ClippingEndPoints Iterations ClippingFactor Row Column Radius StartPhi EndPhi PointOrder
(
Windows only)
static void HOperatorSet .FitCircleContourXld (HObject contours HTuple algorithm HTuple maxNumPoints HTuple maxClosureDist HTuple clippingEndPoints HTuple iterations HTuple clippingFactor HTuple row HTuple column HTuple radius HTuple startPhi HTuple endPhi HTuple pointOrder
void HXLDCont .FitCircleContourXld (string algorithm maxNumPoints maxClosureDist clippingEndPoints iterations clippingFactor HTuple row HTuple column HTuple radius HTuple startPhi HTuple endPhi HTuple pointOrder
void HXLDCont .FitCircleContourXld (string algorithm maxNumPoints maxClosureDist clippingEndPoints iterations clippingFactor row column radius startPhi endPhi pointOrder
def fit_circle_contour_xld (contours algorithm max_num_points max_closure_dist clipping_end_points iterations clipping_factor
def fit_circle_contour_xld_s (contours algorithm max_num_points max_closure_dist clipping_end_points iterations clipping_factor
描述
fit_circle_contour_xld fit_circle_contour_xld FitCircleContourXld FitCircleContourXld FitCircleContourXld fit_circle_contour_xld Contours Contours Contours Contours contours contours Row Row Row Row row row Column Column Column Column column column Radius Radius Radius Radius radius radius
The algorithm used for the fitting of circles can be selected via
Algorithm Algorithm Algorithm Algorithm algorithm algorithm
'algebraic' "algebraic" "algebraic" "algebraic" "algebraic" "algebraic"
This approach minimizes the algebraic distance between the contour
points and the resulting circle.
'ahuber' "ahuber" "ahuber" "ahuber" "ahuber" "ahuber"
Similar to 'algebraic' "algebraic" "algebraic" "algebraic" "algebraic" "algebraic"
'atukey' "atukey" "atukey" "atukey" "atukey" "atukey"
Similar to 'algebraic' "algebraic" "algebraic" "algebraic" "algebraic" "algebraic"
'geometric' "geometric" "geometric" "geometric" "geometric" "geometric"
This approach minimizes the geometric distance
between the contour points and the resulting circle.
The distance measure is statistically optimal, but takes more
computational time.
This option is recommended if the contour
points are considerably distorted by noise.
'geohuber' "geohuber" "geohuber" "geohuber" "geohuber" "geohuber"
Similar to 'geometric' "geometric" "geometric" "geometric" "geometric" "geometric"
'geotukey' "geotukey" "geotukey" "geotukey" "geotukey" "geotukey"
Similar to 'geometric' "geometric" "geometric" "geometric" "geometric" "geometric"
For '*huber' and '*tukey' a robust error statistics is used to estimate the
standard deviation of the distances from the contour points without
outliers from the approximating circle. The parameter
ClippingFactor ClippingFactor ClippingFactor ClippingFactor clippingFactor clipping_factor ClippingFactor ClippingFactor ClippingFactor ClippingFactor clippingFactor clipping_factor
The parameter Iterations Iterations Iterations Iterations iterations iterations 'algebraic' "algebraic" "algebraic" "algebraic" "algebraic" "algebraic" 'ahuber' "ahuber" "ahuber" "ahuber" "ahuber" "ahuber" 'atukey' "atukey" "atukey" "atukey" "atukey" "atukey" 'geometric' "geometric" "geometric" "geometric" "geometric" "geometric" 'geohuber' "geohuber" "geohuber" "geohuber" "geohuber" "geohuber" 'geotukey' "geotukey" "geotukey" "geotukey" "geotukey" "geotukey" Iterations Iterations Iterations Iterations iterations iterations
To reduce the computational load, the fitting of circles can be
restricted to a subset of the contour points: If a value other than
-1 is assigned to MaxNumPoints MaxNumPoints MaxNumPoints MaxNumPoints maxNumPoints max_num_points MaxNumPoints MaxNumPoints MaxNumPoints MaxNumPoints maxNumPoints max_num_points
For circular arcs, the points on the circle closest to the start
points and end points of the original contours are chosen as start
and end points. The corresponding angles referring to the X-axis are
returned in StartPhi StartPhi StartPhi StartPhi startPhi start_phi EndPhi EndPhi EndPhi EndPhi endPhi end_phi gen_ellipse_contour_xld gen_ellipse_contour_xld GenEllipseContourXld GenEllipseContourXld GenEllipseContourXld gen_ellipse_contour_xld MaxClosureDist MaxClosureDist MaxClosureDist MaxClosureDist maxClosureDist max_closure_dist ClippingEndPoints ClippingEndPoints ClippingEndPoints ClippingEndPoints clippingEndPoints clipping_end_points StartPhi StartPhi StartPhi StartPhi startPhi start_phi EndPhi EndPhi EndPhi EndPhi endPhi end_phi
The minimum necessary number of contour points for fitting a circle
is three.
Therefore, it is required that the number of contour points is at least
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
Contours Contours Contours Contours contours contours xld_cont(-array) → object HXLDCont HObject HXLDCont Hobject
Input contours.
Algorithm Algorithm Algorithm Algorithm algorithm algorithm string → HTuple str HTuple Htuple (string) (string ) (HString ) (char* )
Algorithm for the fitting of circles.
默认值：
'algebraic'
"algebraic"
"algebraic"
"algebraic"
"algebraic"
"algebraic"
值列表：
'ahuber' "ahuber" "ahuber" "ahuber" "ahuber" "ahuber" , 'algebraic' "algebraic" "algebraic" "algebraic" "algebraic" "algebraic" , 'atukey' "atukey" "atukey" "atukey" "atukey" "atukey" , 'geohuber' "geohuber" "geohuber" "geohuber" "geohuber" "geohuber" , 'geometric' "geometric" "geometric" "geometric" "geometric" "geometric" , 'geotukey' "geotukey" "geotukey" "geotukey" "geotukey" "geotukey"
MaxNumPoints MaxNumPoints MaxNumPoints MaxNumPoints maxNumPoints max_num_points integer → HTuple int HTuple Htuple (integer) (int / long) (Hlong ) (Hlong )
Maximum number of contour points used for the
computation (-1 for all points).
默认值：
-1
限制：
MaxNumPoints >= 3
MaxClosureDist MaxClosureDist MaxClosureDist MaxClosureDist maxClosureDist max_closure_dist real → HTuple float HTuple Htuple (real) (double ) (double ) (double )
Maximum distance between the end points of a
contour to be considered as 'closed'.
默认值：
0.0
限制：
MaxClosureDist >= 0.0
ClippingEndPoints ClippingEndPoints ClippingEndPoints ClippingEndPoints clippingEndPoints clipping_end_points integer → HTuple int HTuple Htuple (integer) (int / long) (Hlong ) (Hlong )
Number of points at the beginning and at the end of the
contours to be ignored for the fitting.
默认值：
0
限制：
ClippingEndPoints >= 0
Iterations Iterations Iterations Iterations iterations iterations integer → HTuple int HTuple Htuple (integer) (int / long) (Hlong ) (Hlong )
Maximum number of iterations for the robust weighted
fitting.
默认值：
3
限制：
Iterations >= 0
ClippingFactor ClippingFactor ClippingFactor ClippingFactor clippingFactor clipping_factor real → HTuple float HTuple Htuple (real) (double ) (double ) (double )
Clipping factor for the elimination of outliers
(typical: 1.0 for Huber and 2.0 for Tukey).
默认值：
2.0
建议值：
1.0, 1.5, 2.0, 2.5, 3.0
限制：
ClippingFactor > 0
Row Row Row Row row row circle.center.y(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Row coordinate of the center of the circle.
Column Column Column Column column column circle.center.x(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Column coordinate of the center of the circle.
Radius Radius Radius Radius radius radius circle.radius(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Radius of circle.
StartPhi StartPhi StartPhi StartPhi startPhi start_phi angle.rad(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Angle of the start point [rad].
EndPhi EndPhi EndPhi EndPhi endPhi end_phi angle.rad(-array) → HTuple Sequence[float] HTuple Htuple (real) (double ) (double ) (double )
Angle of the end point [rad].
PointOrder PointOrder PointOrder PointOrder pointOrder point_order string(-array) → HTuple Sequence[str] HTuple Htuple (string) (string ) (HString ) (char* )
Point order along the boundary.
值列表：
'negative' "negative" "negative" "negative" "negative" "negative" , 'positive' "positive" "positive" "positive" "positive" "positive"
结果
fit_circle_contour_xld fit_circle_contour_xld FitCircleContourXld FitCircleContourXld FitCircleContourXld fit_circle_contour_xld 2 (
H_MSG_TRUE )
if all parameter values
are correct, and circles could be fitted to the input contours. 如果输入为空则可设置行为通过 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>) ClippingFactor ClippingFactor ClippingFactor ClippingFactor clippingFactor clipping_factor
可能的前趋
gen_contours_skeleton_xld gen_contours_skeleton_xld GenContoursSkeletonXld GenContoursSkeletonXld GenContoursSkeletonXld gen_contours_skeleton_xld lines_gauss lines_gauss LinesGauss LinesGauss LinesGauss lines_gauss lines_facet lines_facet LinesFacet LinesFacet LinesFacet lines_facet edges_sub_pix edges_sub_pix EdgesSubPix EdgesSubPix EdgesSubPix edges_sub_pix smooth_contours_xld smooth_contours_xld SmoothContoursXld SmoothContoursXld SmoothContoursXld smooth_contours_xld
可能的后继
gen_ellipse_contour_xld gen_ellipse_contour_xld GenEllipseContourXld GenEllipseContourXld GenEllipseContourXld gen_ellipse_contour_xld disp_circle disp_circle DispCircle DispCircle DispCircle disp_circle get_points_ellipse get_points_ellipse GetPointsEllipse GetPointsEllipse GetPointsEllipse get_points_ellipse
另见
fit_ellipse_contour_xld fit_ellipse_contour_xld FitEllipseContourXld FitEllipseContourXld FitEllipseContourXld fit_ellipse_contour_xld fit_line_contour_xld fit_line_contour_xld FitLineContourXld FitLineContourXld FitLineContourXld fit_line_contour_xld fit_rectangle2_contour_xld fit_rectangle2_contour_xld FitRectangle2ContourXld FitRectangle2ContourXld FitRectangle2ContourXld fit_rectangle2_contour_xld
模块
基础