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Re: Rendering method software vs hardware [message #89762 is a reply to message #89761] Tue, 02 December 2014 08:52 Go to previous messageGo to previous message
natha is currently offline  natha
Messages: 482
Registered: October 2007
Senior Member
Sometimes it can be very useful to work with the IDLgrBuffer before plotting stuff. The idea is to create all your plots in memory (off-screen) and then convert them to an IDLgrImage. This can help you save some rendering time...

I've got very good results using this method.
Here is the routine I use:

function view2image, view

view->getproperty, viewplane_rect=viewplane_rect, dimensions=dimensions

aux=get_screen_size(resolution=resolution)

obuffer=obj_new('idlgrbuffer', dimensions=[viewplane_rect[2],viewplane_rect[3]], resolution=resolution)
obuffer->erase, color=[255,255,255]

obuffer->draw, view
oimage=obuffer->read()

obj_destroy, obuffer

return, oimage
end

nata

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