Re: SVG Won't Color?

On Wed, 2010-01-06 at 11:27 -0500, Alice Wei wrote: > 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 > > _________________________________________________________________ > Hotmail: Trusted email with Microsoft’s powerful SPAM protection. > http://clk.atdmt.com/GBL/go/196390706/direct/01/ You're reading the SVG contents into $contents, and also into $lines2 as an array. You seem to be making changes to the array version on a line by line basis, but then you output $contents, which is the original contents of the SVG file! You need to output the elements of $lines2, either one-by-one, or concatenate the array into a string and output that. Also, as a bit of advice, I'd try to make your variable names a bit more descriptive than $lines2, $line2, etc. Trying to read through the code and remember what variable does what could be a massive headache later on! Thanks, Ash http://www.ashleysheridan.co.uk