Reprojection problem

[Ed McNierney]

Good job - I never would have figured that one out!

	- Ed 

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Doyon, Jean-Francois
Sent: Monday, January 23, 2006 2:16 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Reprojection problem

Problem solved!

Turns out it was nother problem with point vs. annotation layers, and how some combinations of configurations make mapserver die silently ...

J.F. 

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Doyon, Jean-Francois
Sent: January 23, 2006 1:28 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Reprojection problem

Aha!

It looks like the combination of cgi map_layer_class_expression and the projection causes MS to generate an error!

This is a bug :(

J.F.

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Doyon, Jean-Francois
Sent: January 23, 2006 1:17 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Reprojection problem

Here you go Ed ... I'm at a loss!  Right now I have to think there's a bizarre issue with the data, or maybe it's the fact I set the expression and symbol via the URL? I 'll look into that last one ...

The MAP PROJECTION:

  PROJECTION
    "init=epsg:42304"
  END

The LAYER:

  LAYER
    NAME featureannotate
    TYPE point
    STATUS off
    DATA geo_np
    PROJECTION
      "init=epsg:4326"
    END
    METADATA
      LEGEND_GROUP "theme"
      GROUP_CONTROLLER "0"
      LAY_TITLE "Annotation layer for feature"
      CHECKABLE "0"
      LEGEND_ORDER "-1"
    END
    LABELITEM "FEATURE_NA"
    CLASSITEM "UNIQUE_KEY"
    CLASS
      EXPRESSION "w8g9q7regc87ctr8743tbca084ytc"
      SYMBOL -1
      SIZE 30
      COLOR 0 0 0
      LABEL
        TYPE TRUETYPE
        FONT "arial"
        SIZE 14
        COLOR 0 0 0
        OUTLINECOLOR 226 226 226
        POSITION ur
        FORCE TRUE
      END
    END
  END

J.F.

-----Original Message-----
From: Ed McNierney [mailto:ed at topozone.com]
Sent: January 23, 2006 12:43 PM
To: Doyon, Jean-Francois; MAPSERVER-USERS at LISTS.UMN.EDU
Subject: RE: [UMN_MAPSERVER-USERS] Reprojection problem

JF -

That sounds very strange!  Can you post the LAYER definition for the troublesome layer, or at least the PROJECTION block for it?

	- Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
Phone: +1 (978) 251-4242
Fax: +1 (978) 251-1396
ed at topozone.com

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Doyon, Jean-Francois
Sent: Monday, January 23, 2006 12:03 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Reprojection problem

Hello,

I recently upgraded from 3.6.6 to 4.6.1, and now I'm having problems with a map that reprojects a single layer ...

I have a MAP level PROJECTION object, and one layer with a different PROJECTION than the others ... (The map is in an LCC projection, and the layer in geographic).

This used to work fine in 3.6.6, but now I get "msDrawMap(): Image handling error. Failed to draw layer named 'featureannotate'." ... That layer being the one in geographic that should be getting reprojected.

If I take out the PROJECTION parameter of the layer, no errors!  I tried moving it's definition with the layer, which didn't change anything ... I also tried using both epsg codes and in-line definitions, which also didn't help :(

I was using PROJ 4.4.5 ... Upgraded to 4.4.9 ... That didn't help.  I re-compiled MS just to be safe, the problem remains ...

I have a WMS server running off the same setup without complaints (including reprojection).  The shapefile looks ok, shpdump/shptest and dbfdump didn't produce anything out of the ordinary ...

Any ideas?

Thanks!

Jean-François Doyon
Internet Service Development and Systems Support / Spécialiste de dèveloppements internet et soutien technique Canada Centre for Remote Sensing/Centre Canadien de télédétection Natural Resources Canada/Ressources Naturelles Canada http://atlas.gc.ca
Tel./Tél.: (613) 992-4902
Fax: (613) 947-2410