[Gmsh] a bug in the solid shading

[Christophe Geuzaine]

walter steffe wrote:
> System Linux Suse 8.2.
> Gmsh version:  gmsh-1.45.1-1.i386.rpm
> The first triangle in the surface mesh of the object described in the annexed 
> file is always black.
> 

Walter - I don't see this behavior on my machine. Could you send a picture?

Christophe

> 
> 
> ------------------------------------------------------------------------
> 
> Point(1) = {0, 0, 0, 0.2};
> Point(2) = {2, 0, 0, 0.2};
> Point(3) = {2, 1, 0, 0.2};
> Point(4) = {0, 1, 0, 0.2};
> Point(5) = {0, 0, 1, 0.2};
> Point(6) = {2, 0, 1, 0.2};
> Point(7) = {2, 1, 1, 0.2};
> Point(8) = {0, 1, 1, 0.2};
> Line (1) = {1, 2};
> Line (2) = {2, 3};
> Line (3) = {3, 4};
> Line (4) = {4, 1};
> Line (5) = {5, 6};
> Line (6) = {6, 7};
> Line (7) = {7, 8};
> Line (8) = {8, 5};
> Line (9) = {2, 6};
> Line (10) = {3, 7};
> Line (11) = {4, 8};
> Line (12) = {1, 5};
> Line Loop (1000001) = {-8, -11, 4, 12};
> Plane Surface (1) = {1000001};
> Line Loop (1000002) = {-6, -9, 2, 10};
> Plane Surface (2) = {1000002};
> Line Loop (1000003) = {-5, -12, 1, 9};
> Plane Surface (3) = {1000003};
> Line Loop (1000004) = {-7, -10, 3, 11};
> Plane Surface (4) = {1000004};
> Line Loop (1000005) = {-4, -3, -2, -1};
> Plane Surface (5) = {1000005};
> Line Loop (1000006) = {5, 6, 7, 8};
> Plane Surface (6) = {1000006};
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
Christophe A. Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org