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idlgrpolygon colors [message #60996]

Mon, 30 June 2008 21:01

vispect
Messages: 2
Registered: May 2008

Junior Member

I am confused of the vert_colors keyword of idlgrpolygon, I write a
test program like this :

PRO mypolygon_test

data = [[0,0],[1,0],[1,0.5],[1,1],[0,1],[0,0.5]]
polygons = [5,0,1,2,5,0,5,2,3,4,5,2]
color = [0,0,0]
vert_Colors = [[255,0,0], [0,0,255]]

mypolygon1 = obj_new('idlgrpolygon', style = 1, /depth_test_disable)
mypolygon2 = obj_new('idlgrpolygon', style = 2)

mypolygon1->SetProperty, Data = data, Polygons = polygons, color =
color
mypolygon2->SetProperty, Data = data, Polygons = polygons,
vert_Colors = vert_Colors

omodel = obj_new('idlgrmodel')

omodel->add, mypolygon2
omodel->add, mypolygon1

XOBJVIEW, omodel

; obj_destroy, omodel
END

What I want is a red rectangle with a blue rectangle up and down, but
the result is the color the mixed color of red and blue. So how can I
do this correctly? Thank you for any ideas.

cheers!

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