Thank you!  I have mode some progress.  The fact that my fonts/
directory was not readable escaped my notice.  The msGetErrorString
function provided that data right away.

I have still have some undesired behavior however.  I added
$img->save( $outfile );
carp mapscript::msGetErrorString("\n");
And it indicates that my image file is not openable for write.  I have
verified that the entire directory chain indicated in the message is
world writable.  Is there something else that I need to do?

[Mon Jul  3 15:52:17 2006] -e: Failure: msSaveImageGD(): Unable to
access file.
Unable to open file
/usr/routing/routes/Route1151967137028128.223.40.5.png for writing at
/usr/routing/perl/dwarp/mapdrawing.pm line 515

I changed my write directory to be a child of /tmp, and everything worked out just fine. I verified that the directory permissions matched and could not find any reference in my httpd.conf that would preclude writing to a directory off of /usr. Any ideas as to why this is?

Joe Bussell
On Time Systems



Steve Lime wrote:
You can get at the MapServer error stack with a call like:

  my $map = new mapscript::mapObj( $mapfile ) or 
mapscript::msGetErrorString("\n");

That may help, or be something to try. I use perl MapScript with 4.8 and the 
CVS version all the time with good results.

Steve


Joseph Bussell <[EMAIL PROTECTED]> 6/30/2006 2:09:06 PM >>>

Does anyone use the latest code with PERL Mapscript? If shp2img works with my mapfile, is there anything else I can do to understand why my new call for the mapObj fails?

Joe Bussell
On Time Systems


Joseph Bussell wrote:


I have verified that shp2img constructs an image that derives form my mapfile. This part looks good. My mapscript code was written for 4.4.2, but the one function that is failing does not appear to have significantly changed. I am not getting past construction of the basic mapObj from the mapfile. Specifically, the call to :

my $map = new mapscript::mapObj( $mapfile ) or carp "Could not create mapscript object from mapfile: $mapfile";

produces the error message. I also went into mapscript.pm and added debug code there to be sure I was using the correct module. The low level call is producing an unusable result.
Joe Bussell
On Time Systems


Stephen Woodbridge wrote:


Hi Joe,

A couple of things.

1) what version does you existing code work on?
2) There are probably two areas that you will need to change
  a) the mapfile
  b) the perl

I would start with using shp2img to make sure you mapfile can load. It will at least print errors that you can read.

shp2img -m /path/to/file.map -o junk.png ...

Once you can get an image then you will probably have more luck tracking down the various mapscript changes. These will depend on what version of mapscript your code was written for.

-Steve W.

Joseph Bussell wrote:


Greetings Listers,
It has been a while since I deployed a new Mapserver application. I have been leaning on old source on an old box to get the work done. I have been given a new server to set up for our Air Force project and have had some issues with getting my code to work. First of all I am using Mapscript ala PERL. I recognize that the PERL interface has not been updated due to a lack of user interest, but I am still partial to using it if it can still be done (mostly since I will not have to rewrite my routing path functionality).

My problem is getting the actual mapObj to construct from my mapfile. I have not been able to get any debug information our by checking /tmp/mserrors, which used to work nicely in such cases. All I get is an undefined reference. My code for construction is simple:

my $map = new mapscript::mapObj( $mapfile ) or carp "Could not create mapscript object from mapfile: $mapfile";

in my httpd.conf I define
MS_ERRORFILE              /tmp/mserrors.txt

My mapfile exists and is very simple.
I am running:
CentOS release 4.3
AMD64, dual core machine
Apache/2.0.52
mapserver-4.8.3.tar.gz
perl, v5.8.5 built for x86_64-linux-thread-multi

Thank you for your time.

Joe Bussell
On Time Systems




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