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Topic: hex color in fill() ? (Read 1890 times) |
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lunetta
 
 
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hex color in fill() ?
« on: Apr 4th, 2005, 6:28am » |
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Hello all
when I set the background of the stage, Processing accepts a color in the hex format:
background(0x908A1A);
When I trill to fill a rect with a similar value, it doesn't work;
Is there a painless fast way to convert the hex to a number the fill() would understand?
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TomC
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Re: hex color in fill() ?
« Reply #1 on: Apr 4th, 2005, 11:38am » |
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Use processing's HTML style colour format:
Code:
Alternatively, try specifying full alpha too:
Code:
That might work, but I'm not sure.
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lunetta
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Re: hex color in fill() ?
« Reply #2 on: Apr 4th, 2005, 7:42pm » |
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great, I'll try it. thanks!
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fry
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Re: hex color in fill() ?
« Reply #3 on: Apr 4th, 2005, 7:50pm » |
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yup, both of tom's examples should work.
the only errant case is if you say fill(0x000000), which will come out as black and opaque (since it's indistinguishable from fill(0)).
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rgovostes
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Re: hex color in fill() ?
« Reply #4 on: Apr 4th, 2005, 9:23pm » |
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Hmm, regarding your last comment, Fry - wouldn't any value up to and including 0xFF be opaque, because it is indistinguishable from doing a grayscale color? This shouldn't just be true for 0.
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fry
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Re: hex color in fill() ?
« Reply #5 on: Apr 5th, 2005, 3:56am » |
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right, if the alpha is zero and it's anything from 0 up to the minimum value (set by colorMode) for the blue, then it defaults to assuming a gray fill. it's not great but it's a minor case and it's the least of a few evils.
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rgovostes
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Re: hex color in fill() ?
« Reply #6 on: Apr 6th, 2005, 5:08am » |
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Then one would think that a blue maximum value of 2,147,483,647 would make it impossible to set any color? Not that anything like that would happen! Thanks for clarifying how the mechanism works.
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fry
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Re: hex color in fill() ?
« Reply #7 on: Apr 6th, 2005, 6:46am » |
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hm, i suppose.. but i think you'd run into far worse problems if you set the max value for blue that high. 
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