Re: PHP GD - Create a "flag"

On Sun, 2010-05-09 at 14:21 +0200, Giorgio wrote: > Thankyou Ashley, > > as I only need 5 colors for each image, my idea was to create a single pixel > image for each color and save it on the hd (so that i don't have to create > it every time). > > I've finally used this code: > > imagecopymerge($base, $img1, 0, 0, 1, 1, 100, 500, 75); > imagecopymerge($base, $img2, 100, 0, 1, 1, 100, 500, 75); > imagecopymerge($base, $img3, 200, 0, 1, 1, 100, 500, 75); > imagecopymerge($base, $img4, 300, 0, 1, 1, 100, 500, 75); > imagecopymerge($base, $img5, 400, 0, 1, 1, 100, 500, 75); > > ($imgX are 1*1 images. I have a function that checks if they exists) > > You can see the output here: > http://aagmns47.facebook.joyent.us/sdna/. > > I think that copying a 1*1 image (and as said i'll cache all 1*1 colors on > the hd) on a background is less resource-expensive than creating a coloured > rectangle every time, isn't it? > > Giorgio > > > 2010/5/9 Ashley Sheridan <ash@ashleysheridan.co.uk> > > > On Sat, 2010-05-08 at 18:48 +0200, Giorgio wrote: > > > > Hi, > > > > i've just started using GD libraries. My purpose is to create something like > > a flag. > > > > So that i have a 600*600 px background image, and a 1*1 px image for each > > colour I need. > > > > Ok now let's say i want to colour a third of the background image. I can use > > this code: > > > > imagecopymerge($base, $img1, 0, 0, 0, 0, 200, 600, 85); > > > > It will simply make red first 200 px (on x axys) of the bg image. And this > > work. > > > > Now the problem is: how can i add another colour on pixels from 201 (201 > > right? not 200?) to 400? > > > > Thankyou > > > > > > > > Erm, why don't you use something like imagerectangle() ? It's far easier > > and less resource intensive than having loads of single-pixel images for > > each colour you want to use. > > > > Thanks, > > Ash > > http://www.ashleysheridan.co.uk > > > > > > > > Sorry, use imagefilledrectangle() instead of imagerectangle() in the example I just gave you! Thanks, Ash http://www.ashleysheridan.co.uk