changing the color of object - rephrased
Matthew Roberson
matt at MSILEADS.COM
Fri Jul 8 16:30:49 EDT 2005
Hi,
I am having a problem getting a PHP/Mapscript to work and I hope that
somebody can offer some help. I posted this earlier today, however I
omitted a few details I thought might be pertinent.
Here is what I am trying to do.
I have a shp file(zt48_d00.shp) from the US Census Bureau that
contains 5-digit zip code boundaries for a particular state(Texas in
this case). I do a query to find the zip codes I'm interested in. I
want some of the zip-code boundaries to be filled in red(or whatever
color) and some to be filled in blue (or whatever color). I have
written the PHP/Mapscript that I think will produce the results I
want, however what I get is all yellow zip codes(see the link below).
The portion of the code that is supposed to handle the color is:
if($i <= $percent_num)
{
.
.
.
$oZipClassRed = ms_newClassObj($oZipLayer);
$oZipStyleRed = ms_newStyleObj($oZipClassRed);
$oZipStyleRed->color->setRG
.
.
.
}
else
{
.
.
.
$oZipClassBlue = ms_newClassObj($oZipLayer);
$oZipStyleBlue = ms_newStyleObj($oZipClassBlue);
$oZipStyleBlue->color->setRGB(0,0,255);
.
.
.
}
I am running MapServer 4.4.1 on OS X 10.4.
I have included the php and .map file that generates this map. I
would really appreciate any suggestions. I really need help!
Thanks,
Matt
http://machine.msileads.com/TXZips.html
------------------------------------------------- php file
---------------------------------------------
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<TITLE>2080 Machine</TITLE>
<meta http-equiv = "Content-Language" content="en-us">
<meta http-equiv = "Content-Type" content="text/html;
charset=iso-8859-1">
<style type="text/css">
<!--
.red {color: red; font-size: 10pt;}
.black {color: black; font-size: 10pt;}
.bold {color: black; font-size: 12pt;font-weight:bold;}
-->
</style>
</head>
<body>
<table width="300" align="center" bgcolor="#FFFFFF">
<tr>
<td><img src="http://localhost/JW8020/MSILOGO1.gif" alt=""
width="120" height="112"></td>
</tr>
</table>
<?php
//require('/Library/WebServer/Documents/fpdf.php');
//require('/Library/WebServer/Documents/create8020PDF.php');
ini_set("display_errors","1");
//$username = "sa";
$username = "admin";
//$password = "s1q2l3S1";
$password = "w3xp2BA5";
$hostName = "localhost";
$databaseName = "8020Machine";
$sQVal = "";
$jID8020 = 3;
function get8020CountPercent($val,
$iTotalVal)
{
if($iTotalVal>0)
{
$dPercent=($val/$iTotalVal)*100;
$dPercent = number_format($dPercent, 2, '.', '');
}// ($iTotalVal>0)
else
{
$dPercent = 0.0;
//print "{$iTotalVal} is iTotalVal<br>";
}// end if ($iTotalVal>0)
return $dPercent;
}
function create8020OutputRecord($query,
$zip_array,
$adPercents)
{
// Run the query on the server
if (!($result = @ mysql_query ($query)))
if ($result)
{
$jobID = mysql_insert_id();
}
//return $jobID;
} // end of function
mysql_connect ($hostName,$username,$password);
mysql_select_db($databaseName);
$address_query = mysql_query("select distinct ZipCode from
eightytwentyinput where ZipCode <> '' and ZipCode is not NULL");
$address_rows = mysql_num_rows($address_query);
for($i=0; $i<$address_rows; $i++)
{
$address_array = mysql_fetch_array($address_query);
$temp_zip = $address_array['ZipCode'];
$zip_array[$temp_zip] =0;
$adPercents[$temp_zip]=0;
$data[$i][0]=0;
$data[$i][1]=0;
$data[$i][2]=0;
}
$address_query2 = mysql_query("select ZipCode from eightytwentyinput
where ZipCode <> '' and ZipCode is not NULL");
$address_rows2 = mysql_num_rows($address_query2);
for($i=0;$i<$address_rows2;$i++)
{
$address_array2 = mysql_fetch_array($address_query2);
$temp_zip2 = $address_array2['ZipCode'];
$zip_array[$temp_zip2] += 1;
}
arsort($zip_array);
arsort($adPercents);
//mapserver stuff
dl("php_mapscript.so");
$map_file="/Library/WebServer/Documents/test/TX1.map";
$map = ms_newMapObj($map_file);
$oZipLayer = $map->getLayerByName("TX zip code boundaries");
$sAttrName = 'ZCTA';
//print_r($zip_array);
print("There are <strong>$address_rows</strong> total unique zip
codes<BR>");
$iTotalVal = array_sum($zip_array);
$percent_num = $address_rows*.20;
$i=0;
print("<table border=\"1\"><tr><td class=\"bold\">Zip Code</td><td
class=\"bold\">Count</td><td class=\"bold\">Percent</td></tr>");
while (list($key, $val) = each($zip_array))
{
$i++;
if($i <= $percent_num)
{
$dPercent = get8020CountPercent($val,$iTotalVal);
$qry8020Output = mysql_query("INSERT INTO EightyTwentyOutput
VALUES (NULL,'{$jID8020}','{$key}','{$val}','{$dPercent}')");
create8020OutputRecord($qry8020Output, $zip_array, $adPercents);
echo "<tr><td class=\"red\">$key</td><td class=\"red\">$val</
td><td class=\"red\">$dPercent</td></tr>";
//pdf stuff
$data[$i][0]=$key;
$data[$i][1]=$val;
$data[$i][2]=$dPercent;
//mapserver stuff
if(strlen($key)<=5)
{
if(strncmp($key, "77", 2)== 0)
{
$oZipLayer->set("labelitem", 'ZCTA');
$sQVal=$sQVal.$key."|";
$oZipClassRed = ms_newClassObj($oZipLayer);
$oZipClassRed->setexpression($key);
$oZipStyleRed = ms_newStyleObj($oZipClassRed);
$oZipStyleRed->color->setRGB(250,0,0);
}
}
} // ($i <= $percent_num)
else
{
$dPercent = get8020CountPercent($val,$iTotalVal);
$qry8020Output = mysql_query("INSERT INTO EightyTwentyOutput
VALUES (NULL,'{$jID8020}','{$key}','{$val}','{$dPercent}')");
create8020OutputRecord($qry8020Output, $zip_array, $adPercents);
echo "<tr><td class=\"black\">$key</td><td class=\"black\">
$val</td><td class=\"black\">$dPercent</td></tr>";
//pdf stuff
$data[$i][0]=$key;
$data[$i][1]=$val;
$data[$i][2]=$dPercent;
//mapserver stuff
if(strlen($key)==5)
{
if(strncmp($key, "77", 2)== 0)
{
$oZipLayer->set("labelitem", 'ZCTA');
$sQVal=$sQVal.$key."|";
$oZipClassBlue = ms_newClassObj($oZipLayer);
$oZipClassBlue->setexpression($key);
$oZipStyleBlue = ms_newStyleObj($oZipClassBlue);
$oZipStyleBlue->color->setRGB(0,0,255);
}
}
}// end if ($i <= $percent_num)
$adPercents[$key] = $dPercent;
}// end while
print("</table>");
//more mapserver stuff
$sQVal = substr($sQVal, 0, strlen($sQVal)-1);
//Do query
$qresult = @$oZipLayer->queryByAttributes($sAttrName,"/".
$sQVal."/",MS_MULTIPLE);
$image = $map->drawQuery();
$image_url = $image->saveWebImage();
$error = ms_GetErrorObj();
while($error && $error->code != MS_NOERR)
{
printf("Error in %s: %s \n", $error->routine, $error->messaage);
$error = $error->next();
}
?>
<img SRC="<?php echo $image_url?>">
<p>This is an unprojected map of the 5 digit zip code boundries for
the state of Texas,
from the <a href="http://www.census.gov/geo/www/cob/z52000.html"> US
Census Bureau</a>.</p>
<p>To find the categories for the legend, I used the <code>ogrinfo</
code> utility twice.
<code>ogrinfo -a -summary zt48_d00.shp</code> let me see what fields
were available, and
<code>ogrinfo -a zt48_d00.shp|grep SYMBOL|sort -u</code> told me what
all of the unique values were so that
I could build my <code>CLASS</code> definitions in <code>TX1.map</code>.
</p>
<?php
//print_r($oZipLayer);
print_r($qresult);
if ($oZipLayer->getNumResults() > 0)
echo $oZipLayer->getNumResults()." zips found.";
else
echo "No zips found."
?>
</body>
</html>
------------------------------------------------- map file
---------------------------------------------
MAP
NAME TX
IMAGETYPE PNG
SIZE 600 600
IMAGECOLOR 255 255 255
SHAPEPATH "/Library/WebServer/Documents/data"
FONTSET "/Library/fonts/fonts.list"
EXTENT -106.645646 25.837377 -93.516407 36.500704
UNITS METERS
WEB
IMAGEPATH "/Library/WebServer/Documents/test/"
IMAGEURL "/test/"
END
LEGEND
STATUS EMBED
POSITION UR
END
SCALEBAR
TRANSPARENT ON
BACKGROUNDCOLOR 0 0 0
STATUS EMBED
POSITION LR
STYLE 1
END
LAYER
NAME "TX zip code boundaries"
TYPE POLYGON
STATUS DEFAULT
DATA "zt48_d00"
CLASS
COLOR 255 255 255
OUTLINECOLOR 0 0 0
END
TEMPLATE "x"
END
LAYER
NAME "credits"
STATUS DEFAULT
TRANSFORM FALSE
TYPE ANNOTATION
FEATURE
POINTS
10 480
END
TEXT 'Made with Mapserver.'
END
CLASS
LABEL
TYPE BITMAP
POSITION CR
COLOR 0 0 0
END
END
END
END
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