[Mapserver-users] Problem Selecting a Feature
Benjamin Wragg
bwragg at tpg.com.au
Tue Jan 28 15:30:09 PST 2003
This is a multi-part message in MIME format.
------=_NextPart_000_0001_01C2C77D.35CE30E0
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Hi all,
I have the following layer defined in my map file:
LAYER
CONNECTIONTYPE postgis
NAME "testpoints"
CONNECTION "user=user password=password dbname=dbname host=localhost"
DATA "the_geom from testpoints"
STATUS ON
TYPE POINT
CLASS
NAME "All Points"
COLOR 0 0 0
SIZE 10
SYMBOL 2
END
END
If I run the following code:
$layer=$map->getlayerbyname("aLayer");
$class=ms_newClassObj($layer);
$class->set("name", "Selected Feature");
$class->setexpression('gid='.$featureGID);
$colorId=$map->addColor(255,0,0);
$class->set("color", $colorId);
$class->set("size", 20);
$class->set("symbol", 2);
$layer->set("status", MS_ON);
$image=$map->draw();
$imageURL=$image->saveWebImage(MS_PNG,1,1,0);
I also generate a legend and replace the images in the browser with the
newly generated images. The problem is that I can't see the feature on
the map, but a new class shows up on the legend. What am I missing?
Thanks,
Benjamin
------=_NextPart_000_0001_01C2C77D.35CE30E0
Content-Type: text/html;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html>
<head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DGenerator content=3D"Microsoft Word 10 (filtered)">
<style>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{font-family:Arial;
color:windowtext;}
@page Section1
{size:595.3pt 841.9pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=3DEN-AU link=3Dblue vlink=3Dpurple>
<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi all,</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have the following layer defined in my map =
file:</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>LAYER</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> CONNECTIONTYPE =
postgis</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> NAME =
"testpoints"</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> CONNECTION =
"user=3Duser
password=3Dpassword dbname=3Ddbname =
host=3Dlocalhost"</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> DATA "the_geom =
from testpoints"</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> STATUS =
ON</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> TYPE =
POINT</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> =
CLASS</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> NAME =
"All Points"</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> COLOR 0 =
0 0</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> SIZE =
10</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> SYMBOL =
2</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> END =
</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>END</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>If I run the following code:</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
=
$layer=3D$map->getlayerbyname(“aLayer”);</span></font></p>=
<p class=3DMsoNormal style=3D'text-indent:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>$class=3Dms_newClassObj($lay=
er);</span></font></p>
<p class=3DMsoNormal style=3D'text-indent:36.0pt'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>$class->set("name&qu=
ot;,
"Selected Feature");</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
=
$class->setexpression('gid=3D'.$featureGID);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
$colorId=3D$map->addColor(255,0,0);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
$class->set("color",
$colorId);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
$class->set("size",
20);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
$class->set("symbol",
2);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
$layer->set("status",
MS_ON);</span></font></p>
<p class=3DMsoNormal><a name=3D"OLE_LINK1"><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> &nbs=
p; =
$image=3D$map-></span></font></a><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>draw();</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> =
=
$imageURL=3D$image->saveWebImage(MS_PNG,1,1,0);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I also generate a legend and replace the images in =
the
browser with the newly generated images. The problem is that I =
can’t see
the feature on the map, but a new class shows up on the legend. What am =
I
missing?</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks,</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Benjamin</span></font></p>
</div>
</body>
</html>
------=_NextPart_000_0001_01C2C77D.35CE30E0--
More information about the MapServer-users
mailing list