[Chameleon] problems modifying samples
Wheaton, William D.
wdw at rti.org
Mon Feb 7 13:26:58 EST 2005
Not silly at all. That was indeed the problem. I deleted the KEYMAP
code in the template and it worked perfectly. The popup messages
dissapeared and the map rendered. Your explanation of why commenting
out didn't work is appreciated and I think will help others starting to
use chameleon as well.
I guess we'll have to see if someone else can determine the cause of the
error I got:
Error rendering map image:
A fatal error has occurred restoring your session.
Please restart the application
and why the issue of a 'commented out widget from the template' would
cause that behavior.
Thanks again for the solution.
Bill
-----------------------------------------
Bill Wheaton
RTI International
P.O. 12194, 3040 Cornwallis Rd.
RTP, NC 27709
wdw at rti.org, 919-541-6158 (V), 919-541-8830 (F)
-----Original Message-----
From: Ken-ichi [mailto:kueda at wso.williams.edu]
Sent: Monday, February 07, 2005 12:13 PM
To: Wheaton, William D.
Cc: chameleon at lists.maptools.org
Subject: Re: [Chameleon] problems modifying samples
This may sound a bit silly, but did you try deleting the keymap code
from your template instead of commenting it out? When you comment it
out in the HTML, Chameleon still sees the reference to the widget when
it parses the template, so although the widget output is commented out
in the final product, the associated JavaScript still gets written in,
and that usually makes reference to the image object that has been
commented out (hence the missing image error). Not sure why your map
isn't rendering though.
-Ken-ichi
PS - It's a testament to the general responsiveness of this list that I
was tempted to include a Slashdotian "FIRST!" in the subject line.
Wheaton, William D. wrote:
>Hello--
>
>I'm attempting to get the sample_enhanced.phtml sample working with my
>own .map file and am having problems. What I have done is to replace
>the reference to chameleon.map with a reference to my map file and to
>comment out the KEYMAP portion of the sample_enhanced.html file (since
>my .map file doesn't have a reference map object in it.)
>
>My basic configuration works (the other samples work and I did some
>work with the helpfile/tutorials that worked).
>
>When I open the sample_enhanced.phtml URL, I get two javascript error
>popus (one says "image object for cwcimage_51 not found?" the other
>says "image object for cwcimage_52 not found?"), then I briefly see the
>"loading image" graphic and then in the map window I get the following
>error:
>
>Error rendering map image:
>A fatal error has occurred restoring your session.
>Please restart the application
>
>The rest of the page looks OK (legend, zoom/pan buttons, etc., etc.) I
>can't figure out what the problem is and would appreciate any help. I
>know that my configuration works to the point where it does create map
>.png files and can find them. And the .map file I'm referencing works
>OK outside of the samples environment. But when hooking it into the
>samples_enhanced framework, it doesn't seem to be creating the .png in
>my /tmp directories and I can't figure out why not.
>
>Here's the .map file that is being accessed:
> MAP
> NAME "MIDAS National Data"
> STATUS ON
> #EXTENT -125 24 -66 50
> EXTENT -3443611 2341541 2185646 6092248
> SIZE 600 400
> SHAPEPATH "data"
> #SYMBOLSET "/var/www/htdocs/midas/symbols.txt"
> #FONTSET "../etc/fonts.txt"
> IMAGETYPE PNG
> UNITS METERS
> PROJECTION
> "proj=aea"
> "ellps=GRS80"
> "lat_1=29.5n"
> "lat_2=45.5n"
> "lon_0=90w"
> "no_defs"
> END
> WEB
> #IMAGEPATH "/var/www/htdocs/gis/tmp/"
> IMAGEPATH "/ms4w/tmp/ms_tmp/"
> IMAGEURL "/ms_tmp/"
> TEMPLATE "querytemplate.html"
> LOG "/gis/tmp/logit.txt"
> END
> LEGEND
> STATUS OFF
> KEYSIZE 18 12
> LABEL
> TYPE BITMAP
> SIZE MEDIUM
> COLOR 0 0 89
> END
> TEMPLATE "/var/www/htdocs/midas/htdocs/legend.html"
> END
> QUERYMAP
> STATUS ON
> SIZE 300 300
> COLOR 178 40 100
> STYLE HILITE
> END
> LAYER
> NAME "Counties"
> GROUP "Base"
> STATUS ON
> DATA "the_geom from counties"
> TYPE POLYGON
> CONNECTIONTYPE POSTGIS
> CONNECTION "user= password= dbname="
> SIZEUNITS PIXELS
> PROJECTION
> "proj=latlong"
> "ellps=clrk66"
> END
> METADATA
> LYRNAME "Counties"
> END
> CLASS
> NAME "Counties"
> STYLE
> COLOR 255 255 204
> OUTLINECOLOR 215 215 215
> END
> END
> END
> LAYER
> NAME "States"
> GROUP "Base"
> STATUS ON
> DATA "the_geom from states"
> TYPE POLYGON
> CONNECTIONTYPE POSTGIS
> CONNECTION "user= password= dbname="
> SIZEUNITS PIXELS
> PROJECTION
> "proj=latlong"
> "ellps=clrk66"
> END
> METADATA
> LYRNAME "States"
> END
> CLASS
> NAME "States"
> STYLE
> OUTLINECOLOR 255 0 0
> SIZE 5
> END
> END
> END
>END
>
>Here's the sample_enhanced.html file:
><?php
>/*
> * this is a sample of a minimal application script required to
> * get a chameleon application running with a template and a
> * local map file. Most applications should actually just
> * copy this file and modify the template and mapfile
> * parts and should not need to do a lot more here.
> */
>include( "../../htdocs/chameleon.php" );
>
>
>$szTemplate = "./sample_enhanced.html";
>#$szMapFile = "../map/chameleon.map";
>$szMapFile = "../map/national.map";
>
>class SampleApp extends Chameleon
>{
> function SampleApp()
> {
> parent::Chameleon();
> $this->moMapSession = new MapSession_RW;
> $this->moMapSession->setTempDir( getSessionSavePath());
> }
>}
>
>$oApp = new SampleApp();
>$oApp->registerSkin( 'skins/sample' );
>$oApp->CWCInitialize( $szTemplate, $szMapFile ); $oApp->CWCExecute();
>?>
>
>
>
>-----------------------------------------
>Bill Wheaton
>RTI International
>P.O. 12194, 3040 Cornwallis Rd.
>RTP, NC 27709
>wdw at rti.org, 919-541-6158 (V), 919-541-8830 (F)
>
>
>
>
>
>
>
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