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1. Extrema algorithm calls Curve-surface intersector. This intersector returns flag about infinite solution (in spite of extrema's returning not-parallel status correctly - axes of considered cylinder and circle are not parallel). In this case, attempt of obtaining number of intersection points leads to exception. So, the fix adds check of infinite solution after the intersection algorithm. 2. The methods IsDone(), IsParallel(), NbExt(), SquareDistance() and Points() (of Extrema_* classes) have been corrected to make them consistent to the documentation. 3. Revision of some Extrema_* classes has been made in order to avoid places with uninitialized variables. 4. Currently Extrema does not store any points in case when the arguments are parallel. It stores the distance only. 5. Some cases on Extrema-algo have been moved from "fclasses"-group to "modalg"-group.
25 lines
712 B
Plaintext
25 lines
712 B
Plaintext
puts "========"
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puts "OCC29712"
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puts "========"
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puts ""
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#################################################
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# Extrema algorithm raises exception
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#################################################
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# Curves c1 and c2 are concentric circles.
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# However, they are bounded (trimmed) curves
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# and are shifted relatively to each other.
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set ExpDist 50.0
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circle c1 0 0 0 0 0 1 100
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circle c2 0 0 0 0 0 1 50
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trim c1 c1 0 3
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trim c2 c2 -3.4 -1.4
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regexp {Infinite number of extremas, distance = +([-0-9.+eE]+)} [extrema c1 c2] full aDist1
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checkreal Distance $aDist1 $ExpDist 1.0e-7 0.0
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regexp {Infinite number of extremas, distance = +([-0-9.+eE]+)} [extrema c2 c1] full aDist2
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checkreal Distance $aDist2 $ExpDist 1.0e-7 0.0
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