Difference between revisions of "PHP:Programming Tutorial"

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(Drawing the French tricolour with PHP)
(Drawing the French tricolour with PHP)
Line 7: Line 7:
 
<question height="100" width="150" imgOut="flag.png" className="Raster" title="France" lang='php'>  
 
<question height="100" width="150" imgOut="flag.png" className="Raster" title="France" lang='php'>  
 
[[Image:Flag_guide_france.png|border|right]]
 
[[Image:Flag_guide_france.png|border|right]]
Notice that the blue rectangle is at (0,0), it is 50 wide and 100 deep so the commands to draw the blue rectangle are:   
+
Notice that the white rectangle has top left corner at (50,0), the bottom right corner is at (100,100)
  g.setColor(Color.blue);
+
  $white = imagecolorexact($g,255,255,255);
  g.fillRect(0,0,50,100);
+
  imagefilledrectangle($g,50,0,100,100,$white);
 
<shell lang="java" className="Flag" import="shells.xml#rasterphp"/>
 
<shell lang="java" className="Flag" import="shells.xml#rasterphp"/>
 
<prog>$blue = imagecolorexact($g,0,0,255);
 
<prog>$blue = imagecolorexact($g,0,0,255);

Revision as of 02:20, 31 December 2007

An introduction to computer programming using Java. Comprising

Drawing the French tricolour with PHP

You can create images using the PHP GD library. The first tutorial php:Tutorial/Flags looks at drawing flags of the world, from simple flags such as Libya to more complicated flags such as the Stars and Stripes of the USA. In GD you can use functions such as imagecolorexact and imagefilledrectangle to create simple images.

Flag guide france.png

Notice that the white rectangle has top left corner at (50,0), the bottom right corner is at (100,100)

$white = imagecolorexact($g,255,255,255);
imagefilledrectangle($g,50,0,100,100,$white);



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