[Chameleon] problems modifying samples
Wheaton, William D.
wdw at rti.org
Tue Feb 8 08:42:10 EST 2005
Hi, Paul--
No, I didn't find out why the map didn't generate or why that particular
error message appeared. I know the root problem was that there was a
KEYMAP widget in the template, but no reference object in the map file,
but it would be nice to know why that caused the error it did. Might
help others with troubleshooting?
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: Paul Spencer [mailto:pspencer at dmsolutions.ca]
Sent: Monday, February 07, 2005 10:11 PM
To: Wheaton, William D.
Cc: Ken-ichi; chameleon at lists.maptools.org
Subject: Re: [Chameleon] problems modifying samples
Bill,
did you get an answer to the error message in your map image?
Wheaton, William D. wrote:
> 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)
>>
>>
>>
>>
>>
>>
>>
>>----------------------------------------------------------------------
>>-
>>-
>>
>>_______________________________________________
>>Chameleon mailing list
>>Chameleon at lists.maptools.org
>>http://lists.maptools.org/mailman/listinfo/chameleon
>>
>>
>
>
>
> _______________________________________________
> Chameleon mailing list
> Chameleon at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/chameleon
>
--
+-----------------------------------------------------------------+
|Paul Spencer pspencer at dmsolutions.ca |
+-----------------------------------------------------------------+
|Applications & Software Development |
|DM Solutions Group Inc http://www.dmsolutions.ca/|
+-----------------------------------------------------------------+
More information about the Chameleon
mailing list