Bug in MeshPlot::createOpenGlData()

[Gernot K. <kl...@rt...>]

Hi Micha,

in MeshPlot::createOpenGlData() (module qwt3d_meshplot.cpp) is a bug.
When creating the polygons (i.e. inside of glBegin(GL_POLYGON)), the 
normal must be set before the vertex.
Swapping the line glNormal3d(...) (line# 269) with glVertex3d(...) 
(line# 268) solves it
(line numbers from SVN Revision 215).

Regards,
Gernot