Steve,
I used points for the feature data rather than the WKT string but seem to have
got the same condition.
I have added the debug line to the source to use the msPrintShape in the
mapprimative.c file in the msPolylineComputeLineSegments function.
Using EXTENT -111.9 37 -110 40
FEATURE
POINTS
-110.220980 38.982832
-110.220887 38.982863
-110.221614 38.982708
-110.220980 38.982832
END
TEXT "Testing"
END
With first and last point the same I get no shape details and nothing drawn on
the map and no malloc error.
FEATURE
POINTS
-110.220982 38.982832
-110.220887 38.982863
-110.221614 38.982708
-110.220980 38.982832
END
TEXT "Testing"
END
With different first and last points I get the line drawn and the following
debug :-
[Thu Aug 14 08:47:10 2014].339760 Shape contains 1 parts.
[Thu Aug 14 08:47:10 2014].339777 Part 0 contains 2 points.
[Thu Aug 14 08:47:10 2014].339790 0: (825.885602, 260.055952)
[Thu Aug 14 08:47:10 2014].339829 1: (825.886113, 260.055952)
Then msSmallMalloc(): Out of memory allocating -8 bytes.
We are happy to look further but any guidance to where to look would be great.
With mapsever 6.4.1 the line does not get drawn when the points are the same
but does not give a malloc error.
Thanks
Ian
-----Original Message-----
From: Lime, Steve D (MNIT) [mailto:[email protected]]
Sent: Thursday, August 14, 2014 7:40 AM
To: Ian Walberg; [email protected]; [email protected]
Subject: RE: Multiline string error
One quick thing to do would be to take OGR out of the mix. Just set up a
mapfile with the feature in question as a WKT inline feature. Something like:
LAYER
NAME 'badwkt'
TYPE LINE
STATUS DEFAULT
FEATURE
WKT ' MULTILINESTRING ((-110.220980 38.982832, -110.220887 38.982863,
-110.221614 38.982708, -110.220980 38.982832),(-110.220980 38.982832,
-110.220887 38.982863, -110.221614 38.982708, -110.220980 38.982832))'
END
CLASS
STYLE COLOR 0 0 0 END
END
END
Then try to draw... If this fails then it's a MapServer issue.
Steve
-----Original Message-----
From: Ian Walberg [mailto:[email protected]]
Sent: Wednesday, August 13, 2014 9:38 PM
To: Lime, Steve D (MNIT); [email protected];
[email protected]
Subject: RE: Multiline string error
Steve,
Version 6.4.1 built on the same machine with the same settings does not have
the issue.
Regards
Ian
-----Original Message-----
From: Ian Walberg
Sent: Wednesday, August 13, 2014 3:43 PM
To: 'Lime, Steve D (MNIT)'; '[email protected]';
'[email protected]'
Subject: RE: Multiline string error
Steve,
We will add some debug to the OGR read later today or tomorrow.
How do I turn on the maximum debug?
Thanks
Ian
-----Original Message-----
From: Ian Walberg
Sent: Wednesday, August 13, 2014 3:20 PM
To: 'Lime, Steve D (MNIT)'; [email protected];
[email protected]
Subject: RE: Multiline string error
Steve,
OGR connection to SQLITE DB.
Regards
Ian
-----Original Message-----
From: Lime, Steve D (MNIT) [mailto:[email protected]]
Sent: Wednesday, August 13, 2014 8:46 AM
To: Ian Walberg; [email protected]; [email protected]
Subject: RE: Multiline string error
How are you submitting the WKT to MapServer? Is it via MapScript, via inline
features or some other mechanism?
Steve
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ian Walberg
Sent: Wednesday, August 13, 2014 10:01 AM
To: [email protected]; [email protected]
Subject: Re: [mapserver-dev] Multiline string error
Devs,
The MULTILINE string below gives the following in mapprimitive.c and then as
the first shape has 0 points the msSmallMalloc fails as the size passed to it
is -8.
[Wed Aug 13 07:55:10 2014].618971 Shape contains 2 parts.
[Wed Aug 13 07:55:10 2014].618987 Part 0 contains 0 points.
[Wed Aug 13 07:55:10 2014].619001 Part 1 contains 3 points.
[Wed Aug 13 07:55:10 2014].619016 0: (882.383078, 511.333078)
[Wed Aug 13 07:55:10 2014].619032 1: (825.909890, 260.048026)
[Wed Aug 13 07:55:10 2014].619049 2: (882.383078, 511.333078)
Any clues what we should look at next?
This same source data file and layer work with older versions of mapserver 6.
Thanks
Ian
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ian Walberg
Sent: Monday, August 11, 2014 3:53 PM
To: [email protected]; [email protected]
Subject: [mapserver-users] Multiline string error
Folks,
With Mapserver 6.5-dev from git and GDAL 1.9.1 the line below either does not
draw or causes mapserv to error and not render an image without an error
message.
MULTILINESTRING ((-110.220980 38.982832, -110.220887 38.982863, -110.221614
38.982708, -110.220980 38.982832),(-110.220980 38.982832, -110.220887
38.982863, -110.221614 38.982708, -110.220980 38.982832))
Changing the final digit on either of the first or last lats/longs and it draws
ok!
Any ideas?
Thanks
Ian
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
_______________________________________________
mapserver-dev mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-dev
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
