| Strange behaviour of IDLgrPolygon [message #92232] |
Tue, 03 November 2015 13:16  |
natha
Messages: 482
Registered: October 2007
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Senior Member |
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Hi guys,
Why in the following example the polygon only appears while we are clicking a mouse?
;; ------------------------------------------------------------ ----------
model = obj_new('IDLgrModel')
f = filepath('people.jpg', subdir=['examples', 'data'])
ali = read_image(f)
texture = obj_new('IDLgrImage', ali)
tcoords = [[0.0, 1.0], [0.0, 0.0], [1.0, 0.0], [1.0, 1.0]]
polygon = obj_new('IDLgrPolygon', tcoords, polygons=[4, 0, 1, 2, 3], $
color=[255, 255, 255], $
texture_map=texture, texture_interp=1, $
texture_coord=tcoords)
model->add, polygon
xobjview, model
;; ------------------------------------------------------------ ----------
I don't see the logic...
Thank you in advance for you help,
nata
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| Re: Strange behaviour of IDLgrPolygon [message #92233 is a reply to message #92232] |
Tue, 03 November 2015 16:27  |
Jim Pendleton
Messages: 165
Registered: November 2011
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Senior Member |
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On Tuesday, November 3, 2015 at 2:16:19 PM UTC-7, nata wrote:
> Hi guys,
>
>
> Why in the following example the polygon only appears while we are clicking a mouse?
>
> ;; ------------------------------------------------------------ ----------
> model = obj_new('IDLgrModel')
>
> f = filepath('people.jpg', subdir=['examples', 'data'])
> ali = read_image(f)
> texture = obj_new('IDLgrImage', ali)
>
> tcoords = [[0.0, 1.0], [0.0, 0.0], [1.0, 0.0], [1.0, 1.0]]
> polygon = obj_new('IDLgrPolygon', tcoords, polygons=[4, 0, 1, 2, 3], $
> color=[255, 255, 255], $
> texture_map=texture, texture_interp=1, $
> texture_coord=tcoords)
>
> model->add, polygon
>
> xobjview, model
> ;; ------------------------------------------------------------ ----------
>
> I don't see the logic...
> Thank you in advance for you help,
>
> nata
IDL 8.5 on Window 7-64 properly displays this properly, using hardware rendering.
If you switch to software rendering and the image then displays correctly, the implication is that you may need an updated driver for your graphics card.
Jim P.
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