From: Justin Bl <janthonyb1@...>
Date: 2009-08-10T01:40:13+09:00
Subject: Re: Imagemagick, Rmagick hsla problem

Tim,
Thanks very much for your help.
The code you posted works.

Tim Hunter wrote:
> Justin Bl wrote:
>>> irb(main):001:0> p = Magick::Pixel.from_hsla(80, 100, 50, 1)
>>   require 'rubygems'
>> #@canvas.colorspace = HSLColorspace
>> 
>> $colors = Array.new
>> # convert it to array of pixels
>> puts $colors[0].class
>> 
>> img = MyImage.new("hsl_test", x, y)
>> img.draw()
>> img.finalize('png')
> 
> The color of a new image is set when the image is created. Do this:
> 
> @canvas = Magick::Image.new(@width, @height) do
>     self.background_color = Magick::Pixel.from_hsla(80, 100, 50, 1)
> end
> 
> Setting the background_color attribute *after* creating the image only
> changes the value of the background_color attribute. It doesn't actually
> change the color of the image.

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