Working With Image Coordinates And giving Hotlinks.

[vijaykumarkakatkar]

i have used following code to fill rectangular shape on an image with inputs as x and y coordinates.

 

Now my problem is how to give link to the specified coordinates wherein i want to pop up a user info form.

 

Here is my code :

 

<?

 

// These are the coordinates the location we wish to plot.<br> // These are being passed in the URL, but we will set them to a

// default if nothing is passed.

// First we load the background/base map. We assume it's located in same dir

// as the script.

// This can be any format but we are using JPG in this example // We will also allocate the color for the marker

 

$im = imagecreatefromjpeg("layout.jpg");

$red = imagecolorallocate ($im, 255,0,0);

 

// Next need to find the base image size.

// We need these variables to be able scale the long/lat coordinates.

 

$scale_x = imagesx($im);

$scale_y = imagesy($im);

 

$pt = getlocationcoords(293, 183, 1000, 1000);

 

// Now mark the point on the map using a red 4 pixel rectangle

imagefilledrectangle($im,$pt["x"]-25,$pt["y"]-25,$pt["x"]+25,$pt["y"]+25,$red);

imagestring($im,2,1,$scale_y-20,"Courtesy of www.staycanada.ca",$red);

 

// Return the map image. We are using a PNG format as it gives better final image quality than a JPG

header("Content-Type: image/png");

imagepng($im);

imagedestroy($im);

 

function getlocationcoords($lat, $lon, $width, $height)

{ 

    $x = $lat;

    $y = $lon;

 

    return array("x"=>round($x),"y"=>round($y));

   

}

 

// Now we convert the long/lat coordinates into screen coordinates

?>

 

If anyone could help me out with a script, an example or tutorial or any insight would be superb!!!