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0028346: Function ProjectOnSegments of ShapeAnalysis_Curve returns only single solution leading to projection result far from optimal

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Subdivision of curve parametric interval based on deflection criteria is added for curve type OtherCurve in
Extrema_GExtPC.gxx. Algorithm of subdivision is implemented in Extrema_Curve(2d)Tool.cxx

New Draw command projpcurve for projection of point on CurveOnSurface is added in SWDRAW_ShapeAnalysis.cxx
projpcurve is modified to reflect "start parameter" in usage message and Draw help.
This commit is contained in:
ifv
2017-02-02 15:38:10 +03:00
committed by bugmaster
parent 75b9688a9f
commit f6b08ecf71
14 changed files with 317 additions and 36 deletions
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36
dox/user_guides/draw_test_harness/draw_test_harness.md
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@@ -9845,7 +9845,31 @@ projcurve k_1 0 1 5
==Param = -0.20000000000000001 Gap = 5.0009999000199947
~~~~~
@subsubsection occt_draw_9_1_14 projface
@subsubsection occt_draw_9_1_14 projpcurve
Syntax:
~~~~~
projpcurve <edge> <face> <Tol> <X> <Y> <Z> [<start_param>]
~~~~~
**projpcurve** returns the projection of a given point on a given curve on surface. The curve on surface is defined by giving the edge and face names. Edge must have curve 2D repesentation on the face. Optional parameter <i>\<start_param\></i> is any parameter of pcurve, which is used by algoritm as start point for searching projection of given point with help of local Extrema algorithm. If this parameter is not set, algorithm uses whole parametric interval of pcurve for searching projection.
**Example:**
~~~~~
##Using global searching
projpcurve f_1 f 1.e-7 0.877 0 0.479
==Point: 0.87762772831890712 0 0.47934285275342808
==Param: 0.49990578239977856
==Dist: 0.0007152557954264938
~~~~~
##Using starting parameter on edge
projpcurve f_1 f 1.e-7 0.877 0 0.479 .6
==Point: 0.87762772831890712 0 0.47934285275342808
==Param: 0.49990578239977856
==Dist: 0.0007152557954264938
~~~~~
@subsubsection occt_draw_9_1_15 projface
Syntax:
~~~~~
@@ -9861,7 +9885,7 @@ projface a_1 10.0 0.0
== = proj X = -116 Y = -45 Z = 0
~~~~~
@subsubsection occt_draw_9_1_15 scaleshape
@subsubsection occt_draw_9_1_16 scaleshape
Syntax:
~~~~~
@@ -9875,7 +9899,7 @@ Returns a new shape, which is the result of scaling of a given shape with a coef
scaleshape r a_1 0.8
~~~~~
@subsubsection occt_draw_9_1_16 settolerance
@subsubsection occt_draw_9_1_17 settolerance
Syntax:
~~~~~
@@ -9890,7 +9914,7 @@ Sets new values of tolerance for a given shape. If the second parameter <i>mode<
settolerance a 0.001
~~~~~
@subsubsection occt_draw_9_1_17 splitface
@subsubsection occt_draw_9_1_18 splitface
Syntax:
~~~~~
@@ -9908,7 +9932,7 @@ splitface r f u 5
==> Status: DONE1
~~~~~
@subsubsection occt_draw_9_1_18 statshape
@subsubsection occt_draw_9_1_19 statshape
Syntax:
~~~~~
@@ -9934,7 +9958,7 @@ statshape a
==> 34 bspsur: BSplineSurface
~~~~~
@subsubsection occt_draw_9_1_19 tolerance
@subsubsection occt_draw_9_1_20 tolerance
Syntax:
~~~~~