Hi,
I have the code as in the following, and I am trying to colorize the map. The
SVG File is located here:
http://upload.wikimedia.org/wikipedia/commons/5/5f/USA_Counties_with_FIPS_and_names.svg.
Looks like when I tried to modify the contents of the line, it does not seem
to take into affect. Thus, my map does not get colorized. Do I have to save the
file here? Or, is there something else I have missed here?
<?php
//We are outputting an SVG
header("Content-type: image/svg+xml");
$array= array();
$array2= array();
$array3= array();
$array4= array();
#Map Colors
$colors_array=
array("#F1EEF6","#D4B9DA","#C994C7","#DF65B0","#DD1C77","#980043");
$file = file("unemployment09.csv");
foreach ($file as $line) {
$chars = preg_split("/,/", $line);
$unemployment_rate = $chars[12];
array_push($array,$unemployment_rate);
}
//Calculate the number of elements in array
$total_num = count($array);
#Load the Map
$ourFileName= "USA_Counties_with_FIPS_and_names.svg";
$fh = fopen($ourFileName, "r") or die("Can't open file");
$contents = fread($fh,filesize($ourFileName));
$lines2= file($ourFileName);
#Color the counties based on unemployment rate
for ($i=0;$i<$total_num;$i++){
switch($array[$i]){
case ($array[$i] > 10):
$color = 5;
break;
case ($array[$i] > 8):
$color = 4;
break;
case ($array[$i] > 6):
$color = 3;
break;
case ($array[$i] > 4):
$color = 2;
break;
case ($array[$i] > 2):
$color = 1;
break;
default:
$color= 0;
break;
}
$color_class= $colors_array[$color];
array_push($array4,$color_class);
}
foreach ($lines2 as $line_num => $line2) {
$line_add_one = $line_num + 1;
if(preg_match("/<path/",$line2)) {
$rest = substr($lines2[$line_add_one],0,-3);
$colors_style = ";color:" . $array4[$line_add_one];
$rest = $rest . $colors_style . "\"";
}
array_push($array3,$lines2[$line_add_one]);
}
echo $contents;
fclose($fh);
?>
Thanks for your help.
Alice
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