flip a graphics

Programming Questions

nootropic..

in Programming Questions • 3 years ago

i want to flip horizzontally a PGraphcs object,

in JAVA2D renderer

scale(-1,0)

get this error:

java[1011] <Error>: CGPointApplyInverseAffineTransform: singular matrix.

what can i do?

Replies(3)

PhiLho

I have no idea of where this CGPointApplyInverseAffineTransform method comes from...
But I found a similar error in another software:
https://mailman.cs.umd.edu/pipermail/piccolo-chat/2006/003412.html
(there aren't so much hits on this method name in Google...)
Looks like an error of Java on Mac at version 1.5. Is that your case?

nootropic..

Re: flip a graphics

3 years ago

yeah. i'm on mac and j1.5..

how didyou understand that??

by the way.

i resolved, i was in wrong idea,

i had to use:

scale(-1,1)

thanks

PhiLho

Re: Re: flip a graphics

3 years ago

" how didyou understand that??" I followed the link I gave and I read it...
And indeed, the non-zero value should have been obvious. Curiously, on Sun's (now Oracle's) Java, we get no errors, the image isn't drawn.

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flip a graphics

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