how to label the points on my graph (x and y axis)

[monomaniac21]

Hi all!

Ive got a very simple page shown below to draw a line graph and I need
some help, how do can i label each point on the X and the Y axis? The
lines are drawn with an imageline function, any ideas?

Kind regards

Marc


<?
// Add values to the graph
$graphValues=ar ray(0,80,23,11, 190,245,50,80,1 11,240,55);

// Define .PNG image
header("Content-type: image/png");
$imgWidth=250;
$imgHeight=250;

// Create image and define colors
$image=imagecre ate($imgWidth, $imgHeight);
$colorWhite=ima gecolorallocate ($image, 255, 255, 255);
$colorGrey=imag ecolorallocate( $image, 192, 192, 192);
$colorBlue=imag ecolorallocate( $image, 0, 0, 255);

// Create GREY border around image
imageline($imag e, 0, 0, 0, 250, $colorGrey);
imageline($imag e, 0, 0, 250, 0, $colorGrey);
imageline($imag e, 249, 0, 249, 249, $colorGrey);
imageline($imag e, 0, 249, 249, 249, $colorGrey);

// Create grid using the imageline function to draw lines on the x and
the y (in grey)
for ($i=1; $i<11; $i++){

imageline($imag e, $i*25, 0, $i*25, 250, $colorGrey);
imageline($imag e, 0, $i*25, 250, $i*25, $colorGrey);
}

// Create line graph by looping through the data
for ($i=0; $i<10; $i++){
imageline($imag e, $i*25, (250-$graphValues[$i]), ($i+1)*25,
(250-$graphValues[$i+1]), $colorBlue);
}

// Output graph and clear image from memory
imagepng($image );
imagedestroy($i mage);
?>

[Colin McKinnon]

Re: how to label the points on my graph (x and y axis)

monomaniac21 wrote:
[color=blue]
> Hi all!
>
> Ive got a very simple page shown below to draw a line graph and I need
> some help, how do can i label each point on the X and the Y axis? The
> lines are drawn with an imageline function, any ideas?
>
> Kind regards
>
> Marc
>[/color]

Use jpgraph. Or gnuplot. If you're just masochistic see the notes on

http://www.php.net/manual/en/function.imagechar.php

C.