[Mapserver-users] Projection Systems question

[Amit S BEHERE]

Hi,
I found a very interesting thing. I did change the contrast so that I can
debug. I can see one teensy tiny tree that moves around if I change the
extent slightly. However I see only that one tree when I should see a
bunch of trees. Also The tree is a very tiny dot on screen. Even if I
change the MINSIZE on the class for the layer it doesnt help the map file
is attached below. Could it be a problem in the shape file (it opens up
fine in ArcView though, thats how I got the extent)

MAP
  IMAGETYPE      PNG
  EXTENT         383778 3760227 389212 3763677
  SIZE           400 300
  SHAPEPATH      "data"
  IMAGECOLOR     0 0 0

PROJECTION
 #   "proj=laea"
  #  "ellps=clrk66"
   # "lat_0=45"
    #"lon_0=-100"
  #
  # Alternatively, you can specify an EPSG code.
  "init=epsg:26911"
  #
  END

  # Start of LAYER DEFINITIONS
---------------------------------------------
  LAYER # States polygon layer begins here
    NAME         vernon_trees
    DATA         vernon_trees
    STATUS       DEFAULT
    TYPE         POINT

    PROJECTION
      "init=epsg:26911"
    END

    CLASS
      COLOR        255 255 255
	MINSIZE      300
    END
  END # States polygon layer ends here
  # End of LAYER DEFINITIONS -------------------------------

END # end of map file/object

Amit Behere.
UCSD.
"Technology doesn't make your life more difficult or easy, it just changes
the rules"......Vishwanathan Anand


On Wed, 28 Jan 2004, Ed McNierney wrote:

> Amit -
>
> Thanks!  First, I notice that you're drawing 10% gray points on a white
> background, which is going to make them pretty hard to see.  You might
> try setting the COLOR in the data layer to 0 128 0 or something
> distinctive while you're debugging.
>
> If you are getting a valid PNG image (no broken link icon) that just is
> all white, then I would double-check the extents you've chosen to see if
> you've gotten them correct.  Since your layer is called vernon_trees,
> and your extents are around Vernon, CA, though, I'm guessing they are
> OK.
>
> 	- Ed
>
>
> Ed McNierney
> President and Chief Mapmaker
> TopoZone.com
> -----Original Message-----
> From: Amit S BEHERE [mailto:abehere at cs.ucsd.edu]
> Sent: Wednesday, January 28, 2004 11:25 PM
> To: Ed McNierney
> Cc: Amit S BEHERE; mapserver-users at lists.gis.umn.edu;
> amitbehere at rediffmail.com
> Subject: RE: [Mapserver-users] Projection Systems question
>
> Hi
> I am sorry for not mentioning the problem correctly. Well, I am getting
> a PNG back but it is blank. I have a test.map file and I use the
> following url http://pune.com/mapserver/mapserv.exe?map=location of my
> .map
> file+mode=map. i.e I am using the same parameters as are being used in
> examples.
>
> Amit Behere.
> UCSD.
> "Technology doesn't make your life more difficult or easy, it just
> changes the rules"......Vishwanathan Anand
>
>
> On Wed, 28 Jan 2004, Ed McNierney wrote:
>
> > Amit -
> >
> > You didn't say what the problem is.  What is happening (or not
> > happening) when you try to generate a map from this mapfile?  What is
> > the URL you're using (i.e. what CGI parameters are you specifying)?
> >
> > 	- Ed
> >
> > Ed McNierney
> > President and Chief Mapmaker
> > TopoZone.com
> > -----Original Message-----
> > From: Amit S BEHERE [mailto:abehere at cs.ucsd.edu]
> > Sent: Wednesday, January 28, 2004 10:42 PM
> > To: mapserver-users at lists.gis.umn.edu
> > Cc: amitbehere at rediffmail.com
> > Subject: [Mapserver-users] Projection Systems question
> >
> > Hi all,
> >
> > I am having the following problem. I have a shapefile with the data in
>
> > projection system 1983_UTM_Zone_11N. I am trying to set up a layer in
> > mapserver using this shape file. I took the example1.map file in the
> > tutorial and made changes to it. The salient ones being
> >
> > changing the extent to the correct coordinates (found via ArcView)
> > changing the projection to init epsg: 26911 (for UTM Zone 11 N) and
> > changing the name and data setting for layer.
> > I also changed the type to point and set minsize to be 20.
> >
> > I am also appending the mapfile. Can some one tell me what I am doing
> > wrong ? Thanks in advance
> >
> > MAP
> >   IMAGETYPE      PNG
> >   EXTENT         385538 3761010 391329 3764477
> >   SIZE           400 300
> >   SHAPEPATH      "data"
> >   IMAGECOLOR     255 255 255
> >
> >
> > PROJECTION
> >  #   "proj=laea"
> >   #  "ellps=clrk66"
> >    # "lat_0=45"
> >     #"lon_0=-100"
> >   #
> >   # Alternatively, you can specify an EPSG code.
> >   "init=epsg:26911"
> >   #
> >   END
> >
> >   # Start of LAYER DEFINITIONS
> > ---------------------------------------------
> >   LAYER # States polygon layer begins here
> >     NAME         vernon_trees
> >     DATA         vernon_trees
> >     STATUS       DEFAULT
> >     TYPE         POINT
> >
> >     PROJECTION
> >       "init=epsg:26911"
> >     END
> >
> >     CLASS
> >       COLOR        232 232 232
> > 	MINSIZE      20
> >     END
> >   END # States polygon layer ends here
> >   # End of LAYER DEFINITIONS -------------------------------
> >
> > END # end of map file/object
> >
> > Amit Behere.
> > UCSD.
> > "Technology doesn't make your life more difficult or easy, it just
> > changes the rules"......Vishwanathan Anand
> >
> > _______________________________________________
> > Mapserver-users mailing list
> > Mapserver-users at lists.gis.umn.edu
> > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> >
> >
>
>
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