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0029694: Geom2dGcc_Circ2dTanCenGeo crash

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The reason of this issue is in incorrectly interpreted the generic class "TheExtPC" (eliminated after the fix 0024773) as Extrema_ExtPC2d. Correct interpretation must be "Extrema_EPCOfExtPC2d" class.

Now this problem has been fixed in the class Geom2dGcc_Circ2dTanCenGeo.

New testgrid "lowalgos 2dgcc" has been created.
This commit is contained in:
nbv
2018-05-22 12:15:27 +03:00
committed by bugmaster
parent 638ad7f3c5
commit 894dba72a3
16 changed files with 265 additions and 272 deletions
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dox/user_guides/draw_test_harness/draw_test_harness.md
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@@ -5684,18 +5684,33 @@ projponf f pnt
Syntax:
~~~~~
cirtang cname curve/point/radius curve/point/radius curve/point/radius
cirtang result [-t <Tolerance>] -c <curve> -p <point> -r <Radius>...
~~~~~
Builds all circles satisfying the three constraints which are either a curve (the circle must be tangent to that curve), a point (the circle must pass through that point), or a radius for the circle. Only one constraint can be a radius. The solutions will be stored in variables *name_1*, *name_2*, etc.
Builds all circles satisfying the condition:
1. the circle must be tangent to every given curve;
2. the circle must pass through every given point;
3. the radius of the circle must be equal to the requested one.
Only following set of input data is supported: Curve-Curve-Curve, Curve-Curve-Point, Curve-Curve-Radius, Curve-Point-Point, Curve-Point-Radius, Point-Point-Point, Point-Point-Radius. The solutions will be stored in variables *result_1*, *result_2*, etc.
**Example:**
~~~~~
# a point, a line and a radius. 2 solutions
# a point, a line and a radius. 2 solutions of type Curve-Point-Radius (C-P-R)
point p 0 0
line 1 10 0 -1 1
cirtang c p 1 4
== c_1 c_2
line l 10 0 -1 1
cirtang c -p p -c l -r 4
== Solution of type C-P-R is: c_1 c_2
~~~~~
Additionally it is possible to create a circle(s) with given center and tangent to the given curve (Curve-Point type).
**Example:**
~~~~~
point pp 1 1
2dbsplinecurve cc 1 2 0 2 1 2 -10 -5 1 10 -5 1
cirtang r -p pp -c cc
== Solution of type C-P is: r_1 r_2
~~~~~
@subsubsection occt_draw_6_10_2 lintan