shawn bright
2/6/2008 3:10:00 PM
Hello there all,
i have a simple function to draw an image, but i cannot for the life
of me figgure out from the docs how to make it about 20% transparent.
def circle_image(zoom)
site = self.site
zoomhash = {13 => 0.5, 14 => 1, 15 => 2, 16 => 4}
r = (self.radius.to_f * zoomhash[zoom.to_i].to_f)
canvas = Magick::Image.new((2 * r), (2*r),
Magick::HatchFill.new('transparent', 'transparent'))
gc = Magick::Draw.new
# for the outside perimeter of the circle
gc.stroke('black')
gc.stroke_width(1)
# fill in the inside
color = KeyWord.stat_description(site.status_sensor.last_value)[1]
gc.fill(color)
gc.circle(r, r, 0, r)
image = gc.draw(canvas)
canvas.write("public/images/tmp/#{site.id}.png")
end
please help, thanks
shawn