php graphics

[vincentpol]

I need help or a tutorial on how to color shapes with php

im creating this worldmap with areas and now i need to be able to color these areas dynamicly. does anybody know anything on this subject? 😕

help is really appreciated 😃

[barand]

Here's sample using different fill functions. See http://www.php.net/manual/en/ref.image.php

<?php
  $im = imagecreate(200,100);
  $white = imagecolorallocate($im,0xFF,0xFF,0xFF);
  $black = imagecolorallocate($im,0x00,0x00,0x00);
  $red = imagecolorallocate($im,0xFF,0x00,0x00);
  $blue = imagecolorallocate($im,0x00,0x00,0xFF);

// create filled red rectangle with black border
  imagefilledrectangle($im,10,10,45,40,$red);
  imagerectangle($im,10,10,45,40,$black);
    // cut in half diagonally
  imageline($im,10,10,45,40,$black);
    // flood fill left side with blue
  imagefill($im,12,35,$blue);

// draw filled blue polygon
  imagefilledpolygon($im,array(55,10,55,80,180,10,180,80),4,$blue);

  header("content-type: image/png");
  imagepng($im);
  imagedestroy($im);
?>

Save it as "samplefill.php" then put

<img src='samplefill.php'>

into another page to view

[vincentpol]

thx this was exactly what i was looking for 🆒

only now i wonder if it is possible to fill an area with a patern 😕

[madwormer2]

Yes, it is, but it would require you to create a function that takes the pattern image from a file (for example, imagecreatefromjpeg('pattern.jpg'); ) and then copying it several times to create a "tiling" effect to the area that you want it to go to.

It's just up to you to work out how to go about it, i recommend viewing these manual entries:

[man]imagecreatefromjpeg[/man], [man]imagecopymerge[/man]

[barand]

http://www.php.net/imagesettile()

Sets the image to use as pattern for fill operations

[madwormer2]

Whoaaaa - me is amazed 😛

Lol.

[vincentpol]

nice thx 🙂