include image (logo image file) in an image

Bou

Dear users

On my site I use PHP image functions to create altitude profiles from uploaded user data files.
I am trying to include my web-site logo in these altitude profiles. Is there an easy way to do this?

It may be possible to open my web-site logo as a different image using ImageCreateFromPNG(), and then copy the image pixel by pixel into the altitude profile, using $color=ImageColorAt($imlogo,$ix,$iy) and ImageSetPixel($im,$shiftx+$ix,$shifty+$iy,$color)
for each pixel $ix,$iy of $imlogo.
But
1) I'm not entirely sure that this will work as colors may have different definitions in different images?
2) There may be a faster way?

All help is appreciated.

Regards, Boudewijn Verhaar
http://www.senso-unico.nl/

Weedpacket

Well, if you're using an indexed colour scheme (and not GD2's truecolour functions) then yes, there can be a colour shift, and it can be quite nasty. But, if you're going to try and fit 512 colours into 256 ... something's gotta give 🙂 (It's just that GD-Lib tends not to be too smart about it).

But as for the image copying itself (oh dear, I've given the game away already) there's the [man]imagecopy[/man] function.

Bou

Thanks

For some untraceable reason, I did not see the "imagecopy" function in the "image" section.

Is there a way of removing my stupid question from this forum? 🙁

Weedpacket

Originally posted by Bou
Thanks

For some untraceable reason, I did not see the "imagecopy" function in the "image" section.

Is there a way of removing my stupid question from this forum? 🙁

Yeah, just go to edit your original post, and use the delete button up the top of the form.

But you wanna just delete your second paragraph, and I delete mine (and we both delete our subsequent posts)? 🙂