Re: PHP GD - Create a "flag"

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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@xxxxxxxxxxxxxxxxxxxx>

>  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
>
>
>


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AnotherNetFellow
Email: anothernetfellow@xxxxxxxxx

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