From mapadm at polsl.gliwice.pl  Thu Apr  1 08:42:01 1999
From: mapadm at polsl.gliwice.pl (Grzegorz Myrda)
Date: Thu, 1 Apr 1999 16:44:01 +2
Subject: some questions
Message-ID: <199904011442.QAA04323@zeus.polsl.gliwice.pl>

Hello folks,

Maybe I will start ...

What is the difference between "imgsize" and "mapsize" parameter 
for mapserv.cgi ?

Is this possible to scale (change size depending on scale) and at 
the same time classify (also change size) in version 3.2x ?

How can I show multiple results of "nitemquery" ? If I use 
"itemquery" it's simple: I use "shpext" on template.
But what if there are more than one result and I would need to 
place more "shpext's" on template ?

Happy Easter!

Grzegorz
mailto:mapadm at polsl.gliwice.pl


From steve.lime at dnr.state.mn.us  Fri Apr  2 11:14:23 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Fri, 02 Apr 1999 13:14:23 -0600
Subject: some questions
Message-ID: <s704c2cc.092@smtp.dnr.state.mn.us>

> >From mapadm at polsl.gliwice.pl Thu Apr  1 08:42:38 1999
> From: "Grzegorz Myrda" <mapadm at polsl.gliwice.pl>
> To: mapserver-users at lists.gis.umn.edu 
> Date: Thu, 1 Apr 1999 16:44:01 +2
> MIME-Version: 1.0
> Content-transfer-encoding: 7BIT
> Subject: some questions
>
> Hello folks,
>
> Maybe I will start ...
>
> What is the difference between "imgsize" and "mapsize" parameter
> for mapserv.cgi ?

imgsize, and all parameters starting with "img" refer to an existing image
in a users web browser. mapsize, and all parameters starting with "map"
refer to the map/image to be created. The reason for both parameters is
to allow for changing of image sizes without editing a mapfile. A common
use would be to use one size for an interactive application and then switch
to a larger size for printing.

> Is this possible to scale (change size depending on scale) and at
> the same time classify (also change size) in version 3.2x ?

If I understand the question, then sure. The only difference between
older versions and 3.2 is that now you can't control color, symbol and
size independently, i.e. with separate attribute lookups. In exchange you
get much better label control. To turn on scaling set the parameter
SYMBOLSCALE for a layer. This will scale symbols and fonts based
on the ratio between the scale of the map being created and the value
for SYMBOLSCALE. This is true for all defined classes. Note that only
certain types of symbols (ellipse and vector) are scalable. 

> How can I show multiple results of "nitemquery" ? If I use
> "itemquery" it's simple: I use "shpext" on template.
> But what if there are more than one result and I would need to
> place more "shpext's" on template ?

URL templates cannot be used for presenting multiple results. The page
a user see's when multiple results are returned is actually built from a
number of files. Here's the order they are sent:

1) web HEADER

2) layer HEADER
3) query TEMPLATE
4) repeat 3) for each result for a given layer
5) layer FOOTER

6) repeat 2) through 5) for each layer with results

7) web FOOTER

Note that feature attributes are only available for substitution in step 3). In general,
HEADERs and FOOTERs are small files that inject section titles or other HTML spacing
code. It's possible to use 1) through 6) to initialize a bunch of javascript and actually
build the page in 7). It's not too hard, and very flexible, once you get the hang of it. Here's
an example URL that show's off many of the query options in 3.2. The interface uses
javascript/java so a version 4.x browser is recommended.

http://ftp.dnr.state.mn.us/cgi-bin/mapserv?map=search/search.map&layer_select=county&category=10

It's a front-end for a large GIS data distribution site we're running. It uses an out-of-the-box
version of 3.2 and javascript to make the UI more friendly. Java is used to support box zooming
and queries. I'll glady share any config files with interested users. The java applet will be posted
on the mapserver homepage.

> Happy Easter!
>
> Grzegorz
> mailto:mapadm at polsl.gliwice.pl 

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us



From sdlime at mninter.net  Sun Apr  4 22:05:41 1999
From: sdlime at mninter.net (Stephen Lime)
Date: Mon, 05 Apr 1999 00:05:41 -0500
Subject: MapServer Priorities
Message-ID: <370844A5.6718DB32@mninter.net>

Greetings: As always, I'm adding new features or trying to make old ones
work better. Here
are some ideas I've got and I'd like to get some feedback from users as
to what you would like
to see. If you've got some comments or might be willing to work on some
of these please let
me know. In no particular order:

  - On-the-fly data projection. Actually this is done, but needs
testing. Volunteers?

  - NT port. Actually this has be done (not by me), but the procedures
etc. need to be
     formallized and the package tested on that platform.

  - Although labeling has come a long way recently there is still alot
to do, namely
     string rotation, simple anti-aliasing. I've got code to do this but
it needs to be adapted
     to work with some of the mapserver options like multiline strings
and justification.

  - Improved spatial indexing. Mapserver uses a simple, but effective
gridding system
     to build spatial indexes. The grid is not optimized and a number of
performance gains
     could be made here.

  - 24-bit output. (i.e. bye-bye GIF). Gets rid of a bunch of
limitations and opens up tons
     of possiblities (at a price). PNG would be the leading candidate.
Again, I've almost completed
     a full color version of the GD library but it needs PNG/JPEG decode
and encode pieces and a
     host of other things. Actually we'd need a new library that
supports things like antialiasing...

  - MapScript, make maps from your favorite scripting language (i.e.
perl, TK/TCL) and add to
     them from generic sources like relational databases. Any SWIGers
out there (www.swig.org)?

Again, these are just things I'd like to see. Thanks.

Steve



From mapadm at polsl.gliwice.pl  Tue Apr  6 10:53:46 1999
From: mapadm at polsl.gliwice.pl (Grzegorz Myrda)
Date: Tue, 6 Apr 1999 19:53:46 +0200
Subject: MapServer Priorities
In-Reply-To: <370844A5.6718DB32@mninter.net>
Message-ID: <000001be8056$6b8d07a0$a7cb9e9d@g>

> -----Oryginalna wiadomo??-----
> Od: owner-mapserver-users at lists.gis.umn.edu
> [mailto:owner-mapserver-users at lists.gis.umn.edu]W imieniu Stephen Lime
> Wys?ano: 5 kwietnia 1999 07:06
> Do: mapserver-users at lists.gis.umn.edu
> Temat: MapServer Priorities
>
> Greetings: As always, I'm adding new features or trying to make old ones
> work better. Here
> are some ideas I've got and I'd like to get some feedback from users as
> to what you would like
> to see. If you've got some comments or might be willing to work on some
> of these please let
> me know.
The problem lies in that, I don't know what about others, but I still use
v3.1, because upgrading my Map Server application will take a little work,
and additionaly I made some individual customization to MS.
But when I do it, I can help with NT port (even W95 port !, because I use
W95 to develop and test my application and then when everything works OK
copy it to HP-UX). The only correction needed in code is to replace pid by
more unique number (for example pid+time).
I have also adopted gdtclft to draw labels with string rotation (however
without multiline strings and justification).

To a list of suggestions I would add support of multifields itemquery. I
have done it for my own purposes but it's very unformal.

Grzegorz



From Jonathon.Root at agso.gov.au  Thu Apr  8 20:15:29 1999
From: Jonathon.Root at agso.gov.au (Jonathon.Root at agso.gov.au)
Date: Fri, 9 Apr 1999 13:15:29 +1000 
Subject: automatically generating color luts
Message-ID: <0B22652400E4D211829A0060B0570D9B2F55D8@agsomail1.agso.gov.au>

G'day,

I was wondering whether anyone has tackled the problem of generating
mapserver lookup tables for layers automatically from arcview avl files?

Our corporate GIS environment revolves around arc/info and arcview.
Consequently I have no end of shape files to serve, unfortunately some of
them have up to 394 different classes to be shaded per layer and up to 30
layers per coverage and it's a bit of a drag to convert them manually to
colorlut, symbollut and legendlabels tables, it's a bit of double-handling
too, considering the avl files have already been created.

I'm about to try automating the process but I thought I'd find out if anyone
else has tackled it first? I'm particularly wondering about mapping the
colorlut to the colorindex file. I can get RGB values out of arcview but
they may not correspond with any of the 256 I've got in the color index
file.

Regards,

Jonathon Root
Australian Geological Survey
www.agso.gov.au
jonathon.root at agso.gov.au


From Biza at muhb.cz  Fri Apr  9 04:50:35 1999
From: Biza at muhb.cz (Josef Biza)
Date: Fri, 9 Apr 1999 13:50:35 +0200 
Subject: MAKEFILE.NT
Message-ID: <41B85C531ED8D1119D510060086D865E084FA9@INTRANET>

Good day,

I downloaded mapserver 3.2 and I want use it with Microsoft IIS. There is
not unfortunately a makefile for NT  in this distribution. I would like to
know if I can find this makefile somewhere or where i can find older version
mapserver with makefile for NT. I have version mapserver 2.3 now.

Thank you very much.
Josef

ing. Josef Biza
City hall Brod
Havlickovo namesti 57
580 01 Havlickuv Brod
Czech Republic
tel:420 451 353 228
email: biza at muhb.cz
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From steve.lime at dnr.state.mn.us  Fri Apr  9 06:38:33 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Fri, 09 Apr 1999 08:38:33 -0500
Subject: automatically generating color luts
Message-ID: <s70dbcbb.076@smtp.dnr.state.mn.us>


I have the the beginings of an avenue script that takes a view and
spits out a mapfile and a colorfile. I wrote it for version 3.1 files so it
would take some tweaking, not much though, to make it create version
3.2 files. The nice thing about 3.2 is that you don't have colorfiles anymore,
rather you just specify RGB values and the mapserver builds a palette
for you. I've attached the script in case someone will find it usefull. Works
ok, I got bogged down on capturing symbols from ArcView (i.e. creating
symbol files).

I ain't much of a Avenue programmer...

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us

>>> <Jonathon.Root at agso.gov.au> 04/08 10:15 PM >>>
G'day,

I was wondering whether anyone has tackled the problem of generating
mapserver lookup tables for layers automatically from arcview avl files?

Our corporate GIS environment revolves around arc/info and arcview.
Consequently I have no end of shape files to serve, unfortunately some of
them have up to 394 different classes to be shaded per layer and up to 30
layers per coverage and it's a bit of a drag to convert them manually to
colorlut, symbollut and legendlabels tables, it's a bit of double-handling
too, considering the avl files have already been created.

I'm about to try automating the process but I thought I'd find out if anyone
else has tackled it first? I'm particularly wondering about mapping the
colorlut to the colorindex file. I can get RGB values out of arcview but
they may not correspond with any of the 256 I've got in the color index
file.

Regards,

Jonathon Root
Australian Geological Survey
www.agso.gov.au 
jonathon.root at agso.gov.au

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From steve.lime at dnr.state.mn.us  Fri Apr  9 06:43:50 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Fri, 09 Apr 1999 08:43:50 -0500
Subject: MAKEFILE.NT
Message-ID: <s70dbde9.097@smtp.dnr.state.mn.us>

Josef: I know of one user who has ported the code to NT. I made a few changes
to accomodate him, so it should be good to go. He did not use Makefiles but set
it up directly as a project in MS VC++, which is really all you use the Makefile for
anyway. I'm not sure if he's on the list, if so I hope he'll respond as well. If not I'll
contact him and ask that he posts compilation steps for NT to the list.

I believe the main trick was finding a regex library for win32. I know one can be 
found at: http://www.mis2.udel.edu/~terence/regex/.

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us

>>> Josef Biza <Biza at muhb.cz> 04/09 6:50 AM >>>
Good day,

I downloaded mapserver 3.2 and I want use it with Microsoft IIS. There is
not unfortunately a makefile for NT  in this distribution. I would like to
know if I can find this makefile somewhere or where i can find older version
mapserver with makefile for NT. I have version mapserver 2.3 now.

Thank you very much.
Josef

ing. Josef Biza
City hall Brod
Havlickovo namesti 57
580 01 Havlickuv Brod
Czech Republic
tel:420 451 353 228
email: biza at muhb.cz



From mapadm at polsl.gliwice.pl  Tue Apr 13 11:36:38 1999
From: mapadm at polsl.gliwice.pl (Grzegorz Myrda)
Date: Tue, 13 Apr 1999 20:36:38 +0200
Subject: layername_hidden ?
Message-ID: <000001be85dc$91702de0$a4cb9e9d@g>

If someone knows how to pass on a list of active layers the same way as
"get_layers" but as hidden variables (not visible list) ? else my suggestion
to You Steven is to constitute [layername_hidden] template substitution
(analogous to [layername_check] or [layername_select]). It would be useful
in case of returning from itemquery results without changing active
(visible) layers (and without showing the list).

By the way: is there a possibility to define a vector (scalable) symbol
combined of circle in circle ?

Thx
Grzegorz



From bfraser at digitalscience.com  Tue Apr 13 13:57:18 1999
From: bfraser at digitalscience.com (Brent Fraser)
Date: Tue, 13 Apr 1999 14:57:18 -0600
Subject: Mapserver on NT
Message-ID: <000f01be85f0$391cb320$390002c0@servo>

Fellow MapServer Implementers,
 
  Steven Lime asked me to write a summary on implementing
Mapserv on Windows NT.  Below is a short note on my experiences.
 
I've taken a few short cuts just to get it up and running (especially
with the regex stuff), so if anyone else has suggestions, improvements
etc, I'm all ears!  And since I haven't tested all the functionality yet,
some of the those short cuts may cause problems.
 
Brent Fraser
GeoAnalytic Inc.
1150 , 633 - 6th Avenue SW Calgary, AB T2P 2Y5
Tel:  (403)213-2700 Fax:  (403)213-2707
info at geoanalytic.com 
www.geoanalytic.com


===================================================
Implementing University of Minnesota MapServer
 
1.  Software Configuration
 
    The software I use for actually running the Mapserver
(once it is compiled) are:
  
    Windows NT Workstation 4.0
    Apache 1.3 Webserver
    MapServer 3.211
 
    I use Visual C++ 5.0 for building Mapserver, and the following
components:
 
    freetype-1.2 from http://www.freetype.org/download.htm
    tiff-v3_4beta035-tar.gz from ftp://ftp.sgi.com/graphics/tiff
        (I see that beta37 is now available)
    hs_regex from http://people.delphi.com/gjc/winregex.html
    proj4 4.3.3 from ftp://kai.er.usgs.gov/pub/proj.4


    Other components used are from the Mapserver distribution
(gd, shapelib) although they are available on the Internet as well.

    I compile each of the components into libraries using a separate
VC++ project for each.  I also make a library out of most of the
mapserver files, all except mapserv.c. Mapserv.c is in it's own
project with the compiled libraries from the other projects.


2.  Changes to Source Code

Changes to Mapserver source

MAPFILE.C, function msLoadMap, (around line 1120), comment out
    the "if" block that starts with:
        if(regexec(&re, filename, 0, NULL, 0) != 0) { /* no match */
    It has problems with Windows style paths

MAPSHAPE.C, at the top of the file insert
        #include <memory.h>
    for Windows compatibility

MAPSERV.C,  function ReturnHTML, (around line 740?), comment out
    the "if" block that starts with
        if(regexec(&re, html, 0, NULL, 0) != 0) { /* no match */
    again, problems with Windows paths


Changes to Proj4 source

In PARAM.C and PROJECTS.H, change all occurrences of PVALUE
(there is four of them)  to something like PJVALUE, since Windows
already uses PVALUE


Changes to regex source

In REGEXEC.C and REGEX.H, remove any occurrences of __stdcall.
Windows now has a different default calling convention.


Changes to libtiff source

In TIF_WIN32.C, in function _tiffUnmapProc, comment out the following
line:
   CloseHandle((HANDLE)map_handle);
For some reason, this causes mapserv to crash on NT.

=====================
That's all there is to making mapserv.exe for Windows NT.

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From steve.lime at dnr.state.mn.us  Wed Apr 14 07:40:35 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Wed, 14 Apr 1999 09:40:35 -0500
Subject: layername_hidden ?
Message-ID: <s71462b0.002@smtp.dnr.state.mn.us>

Grzegorz: Hadn't thought of this particular use. Queries tend to deadends with
respect to maps so there usually isn't a need. [layername_hidden] won't work
but I could see something like [post_layers] which would create a series of
hidden variables called layer each with a different value. That should get you
what you need. I'll add to the next beta update due out late this week or
early next week.

As for symbol. No, although you could draw the layer twice. Once with a
big circle of one color and once with a little circle of another color. Symbols
in general, to be blunt, suck. I'd like to try and move to a standard format
like CGM. If anyone has thoughts or experiences let me know.

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us

>>> "Grzegorz Myrda" <mapadm at polsl.gliwice.pl> 04/13 1:36 PM >>>
If someone knows how to pass on a list of active layers the same way as
"get_layers" but as hidden variables (not visible list) ? else my suggestion
to You Steven is to constitute [layername_hidden] template substitution
(analogous to [layername_check] or [layername_select]). It would be useful
in case of returning from itemquery results without changing active
(visible) layers (and without showing the list).

By the way: is there a possibility to define a vector (scalable) symbol
combined of circle in circle ?

Thx
Grzegorz




From steve.lime at dnr.state.mn.us  Fri Apr 16 15:23:12 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Fri, 16 Apr 1999 17:23:12 -0500
Subject: Font list format.
Message-ID: <s717720c.040@smtp.dnr.state.mn.us>

Hi all: Seems my README for TrueType font lists is backwards. The format
of the file should be [font alias]  [font file] (eg. times times.ttf). I believe it
listed as the other way around in the README. Sorry for the confusion.

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us



From pnaciona at gis.umn.edu  Wed Apr 28 18:43:47 1999
From: pnaciona at gis.umn.edu (Pericles S. Nacionales)
Date: Wed, 28 Apr 1999 20:43:47 -0500
Subject: TIFF/GeoTIFF images on MapServer 3.2
Message-ID: <004901be91e1$b9f346b0$5e496580@gis.umn.edu>

Hi Folks,

This is probably more for Steve but I thought I'd send it through here in case others have suggestions, or might have ran into the same problem.  The question, as stupid as it may sound, is how does one create a colormapped TIFF or geoTIFF?  I thought that a GeoTIFF is a GeoTIFF so I created an image through Imagine.  Alas!, this is what I got when I tried using it with MapServer 3.2:

An error has occurred in drawTIFF(): Image handling error. Only colormapped and grayscale images are supported. 

Any ideas, tips, suggestions?

Thanks,

Pericles S. Nacionales
GIS and Remote Sensing Lab
Department of Forest Resources
University of Minnesota

(612) 624-3459
pnaciona at gis.umn.edu
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From steve.lime at dnr.state.mn.us  Thu Apr 29 07:27:15 1999
From: steve.lime at dnr.state.mn.us (Stephen Lime)
Date: Thu, 29 Apr 1999 09:27:15 -0500
Subject: TIFF/GeoTIFF images on MapServer 3.2
Message-ID: <s72825f8.090@smtp.dnr.state.mn.us>

Perry: Nope, TIFF is an incredibly flexible format, with many variations (pixel depth, compression). That's why
some folks don't like it, it's sometimes too flexible. Imagine can kick out collormapped GeoTIFF, although I
believe you need to do the color reduction (i.e. 24bit -> 8bit) as a separate process and then go to GeoTIFF.

(I know there are other list users more adept at the color reduction step than I. Perhaps they'll post a how-to.)

Other packages like Photoshop, XV, PaintShop Pro and PBMPlus can do the color reduction on a TIFF but
you'll likely loose the GeoTIFF tags. You could always just go with an ESRI world file in that case.

(Note: Images MUST be in the same projection as the output map. PROJ.4 projection capabilities extend only
to vector data, not raster data. Just too slow (although feasible). GeoTIFF support does not make use of the
rotation coeficients, just the UL coordinates and cellsizes.)

Steve

Stephen Lime
Internet Applications Programmer
MIS Bureau - MN DNR

(651) 297-2937
steve.lime at dnr.state.mn.us

>>> "Pericles S. Nacionales" <pnaciona at lists.gis.umn.edu> 04/28 8:43 PM >>>
Hi Folks,

This is probably more for Steve but I thought I'd send it through here in case others have suggestions, or might have ran into the same problem.  The question, as stupid as it may sound, is how does one create a colormapped TIFF or geoTIFF?  I thought that a GeoTIFF is a GeoTIFF so I created an image through Imagine.  Alas!, this is what I got when I tried using it with MapServer 3.2:

An error has occurred in drawTIFF(): Image handling error. Only colormapped and grayscale images are supported. 

Any ideas, tips, suggestions?

Thanks,

Pericles S. Nacionales
GIS and Remote Sensing Lab
Department of Forest Resources
University of Minnesota

(612) 624-3459
pnaciona at gis.umn.edu



From kenboss at dilbert.dnr.state.mn.us  Thu Apr 29 12:20:05 1999
From: kenboss at dilbert.dnr.state.mn.us (kenboss at dilbert.dnr.state.mn.us)
Date: Thu, 29 Apr 1999 14:20:05 -0500 (CDT)
Subject: TIFF/GeoTIFF images on MapServer 3.2
Message-ID: <199904291920.OAA23296@philbert.dnr.state.mn.us>

> Imagine can kick out collormapped GeoTIFF, although I believe you
> need to do the color reduction (i.e. 24bit -> 8bit) as a separate
> process and then go to GeoTIFF.

> (I know there are other list users more adept at the color reduction
> step than I. Perhaps they'll post a how-to.)

I'll give it a shot, though this is veering a bit off-topic so I won't
dwell on it at length.

You can do the color reduction in Imagine using the
Interpreter->Utilities->Adv. RGB Clustering menu option.  (You can try
to RGB Clustering option above it, but in my experience the results
are generally unacceptable).  Select your input image, choose the
three bands you want to work with, and hit the "Load Image Data"
button.  Then go to the "Partition Data" tab and tweak the "(Color)
Sections" values, hitting the "Calculate Number of Classes" button
with each change.  Ideally, you'll want a number of classes
approaching, but not exceeding, 256 (and a data type of Unsigned 8
bit).  Usually some combination of 7s and 8s in the Color Sections
will get you there.  I've never tried the threshold options, you may
want to experiment with those as well.

Once you've got the parameters set where you want them, click the
Build LUT button.  Then go back to the Image I/O tab, specify your
output image, and hit the "Produce Output" button.  You'll get a new,
single-band .img file that you can then convert to GeoTIFF.

The results are generally pretty good, but the process is a bit
unwieldy and doesn't lend itself to automated processing of large
numbers of images.  We use a product called "Image Alchemy"
(http://www.handmadesw.com/) for such purposes - it reads (but doesn't
write) .img files and will output to a huge variety of image formats,
including TIFF.  I don't think it does GeoTIFF, though as Steve points
out you can just concoct an ESRI world file in that case.  Of course
there are plenty of other packages that could be used as well, but I
don't know of any others off-hand that can read .img files, if that's
an issue.

============================================================================
Ken Boss                                
Digital Image Analyst / Web Stuff       Forestry Resource Assessment
ken.boss at dnr.state.mn.us                Minnesota Dept. of Natural Resources
Voice: 218 327 4449 ext. 237            413 SE 13th Street                    
Fax:   218 327 4517                     Grand Rapids, MN  55744         USA
============================================================================




From rob at socialchange.net  Thu Apr 29 17:34:39 1999
From: rob at socialchange.net (Rob Atkinson)
Date: Fri, 30 Apr 1999 10:34:39 +1000
Subject: Reprojection
Message-ID: <3728FA9E.6662ABEE@socialchange.net>


Hi folks,

does anybody have information regarding the use of PROJ.4 within the
latest Mapserver (3.211).

Trying to use the same technique as per Fornet 2.3 creates a lexical
scanning error on the "=" signs. Looking at the code I suspect this is a
problem in 3.211 map file parsing.

PROJECTION
proj=utm
...
END

Also, with 2.3 I was unable to make the thing reproject when all I
wanted to do was a datum shift. Any clues on how to force it, and is
this problem fixed in 3.2?

Regards
--
--------------------------------------------------------------------------------

Rob Atkinson
rob at socialchange.net
Director                                                        Mob 0419
202 973
Social Change Online Pty Ltd                                Ph  +61
(2)9557 6500
http://online.socialchange.net                              Fax +61
(2)9519 8940




From bfraser at digitalscience.com  Thu Apr 29 19:37:04 1999
From: bfraser at digitalscience.com (Brent Fraser)
Date: Thu, 29 Apr 1999 20:37:04 -0600
Subject: Reprojection
References: <3728FA9E.6662ABEE@socialchange.net>
Message-ID: <002201be92b2$bd50dda0$500202c0@cghh1.ab.wave.home.com>

Rob,

  Try putting the parameters in quotes:

PROJECTION
    "proj=utm"
   ...
END


I was able to re-project in 2.3, but it did not
do datum shifts.  Neither does 3.211 (there's
no code in Proj4 nor Mapserver to do datum
shifts).

If there's a big enough demand, I might be able
to find some source code for the Molodensky
datum transformation...


Brent Fraser

GeoAnalytic Inc.
1150 , 633 - 6th Avenue SW Calgary, AB T2P 2Y5
Tel:  (403)213-2700 Fax:  (403)213-2707
bfraser at geoanalytic.com
www.geoanalytic.com

----- Original Message -----
From: Rob Atkinson <rob at socialchange.net>
To: <mapserver-users at lists.gis.umn.edu>
Sent: Thursday, April 29, 1999 6:34 PM
Subject: Reprojection


>
> Hi folks,
>
> does anybody have information regarding the use of PROJ.4 within the
> latest Mapserver (3.211).
>
> Trying to use the same technique as per Fornet 2.3 creates a lexical
> scanning error on the "=" signs. Looking at the code I suspect this is a
> problem in 3.211 map file parsing.
>
> PROJECTION
> proj=utm
> ...
> END
>
> Also, with 2.3 I was unable to make the thing reproject when all I
> wanted to do was a datum shift. Any clues on how to force it, and is
> this problem fixed in 3.2?
>
> Regards
> --
> --------------------------------------------------------------------------
------
>
> Rob Atkinson
> rob at socialchange.net
> Director                                                        Mob 0419
> 202 973
> Social Change Online Pty Ltd                                Ph  +61
> (2)9557 6500
> http://online.socialchange.net                              Fax +61
> (2)9519 8940
>
>
>



From rob at socialchange.net  Thu Apr 29 20:11:31 1999
From: rob at socialchange.net (Rob Atkinson)
Date: Fri, 30 Apr 1999 13:11:31 +1000
Subject: Reprojection
References: <3728FA9E.6662ABEE@socialchange.net> <002201be92b2$bd50dda0$500202c0@cghh1.ab.wave.home.com>
Message-ID: <37291F63.690260A9@socialchange.net>

Thats done the trick! Many thanks.

I'll have some interesting stuff to show the list soon - anybody else here
interested in the OpenGIS Web Mapping standards process?



Brent Fraser wrote:

> Rob,
>
>   Try putting the parameters in quotes:
>
> PROJECTION
>     "proj=utm"
>    ...
> END
>
> I was able to re-project in 2.3, but it did not
> do datum shifts.  Neither does 3.211 (there's
> no code in Proj4 nor Mapserver to do datum
> shifts).
>
> If there's a big enough demand, I might be able
> to find some source code for the Molodensky
> datum transformation...
>
> Brent Fraser
>
> GeoAnalytic Inc.
> 1150 , 633 - 6th Avenue SW Calgary, AB T2P 2Y5
> Tel:  (403)213-2700 Fax:  (403)213-2707
> bfraser at geoanalytic.com
> www.geoanalytic.com
>
> ----- Original Message -----
> From: Rob Atkinson <rob at socialchange.net>
> To: <mapserver-users at lists.gis.umn.edu>
> Sent: Thursday, April 29, 1999 6:34 PM
> Subject: Reprojection
>
> >
> > Hi folks,
> >
> > does anybody have information regarding the use of PROJ.4 within the
> > latest Mapserver (3.211).
> >
> > Trying to use the same technique as per Fornet 2.3 creates a lexical
> > scanning error on the "=" signs. Looking at the code I suspect this is a
> > problem in 3.211 map file parsing.
> >
> > PROJECTION
> > proj=utm
> > ...
> > END
> >
> > Also, with 2.3 I was unable to make the thing reproject when all I
> > wanted to do was a datum shift. Any clues on how to force it, and is
> > this problem fixed in 3.2?
> >
> > Regards
> > --
> > --------------------------------------------------------------------------
> ------
> >
> > Rob Atkinson
> > rob at socialchange.net
> > Director                                                        Mob 0419
> > 202 973
> > Social Change Online Pty Ltd                                Ph  +61
> > (2)9557 6500
> > http://online.socialchange.net                              Fax +61
> > (2)9519 8940
> >
> >
> >

--
--------------------------------------------------------------------------------

Rob Atkinson                                                rob at socialchange.net

Director                                                        Mob 0419 202 973

Social Change Online Pty Ltd                                Ph  +61 (2)9557 6500

http://online.socialchange.net                              Fax +61 (2)9519 8940





From rob at socialchange.net  Fri Apr 30 15:23:03 1999
From: rob at socialchange.net (Rob Atkinson)
Date: Sat, 01 May 1999 08:23:03 +1000
Subject: Reprojection
References: <199904301527.KAA24301@mallit.fr.umn.edu>
Message-ID: <372A2D47.68B507EE@socialchange.net>

Will keep the list posted then!

In the meantime there is cute prototype project using ForNet 2.3 at
http://www.nccnsw.org.au/mapping/bushland

This illustrates the use of distributed  data layers accessed via a middleware
application. We have a far more sophisticated production version which we'll be
presenting to the OGC next week.

--
_______________________________________________________________
Rob Atkinson                        Email: rob at socialchange.net
Director

Thomas E. Burk wrote:

> > From rob at socialchange.net Thu Apr 29 22:07:07 1999
> > Date: Fri, 30 Apr 1999 13:11:31 +1000
> > From: Rob Atkinson <rob at socialchange.net>
> > X-Accept-Language: en
> > MIME-Version: 1.0
> > To: Brent Fraser <bfraser at digitalscience.com>
> > CC: mapserver-users <mapserver-users at lists.gis.umn.edu>
> > Subject: Re: Reprojection
> > Content-Transfer-Encoding: 7bit
> >
> > Thats done the trick! Many thanks.
> >
> > I'll have some interesting stuff to show the list soon - anybody else here
> > interested in the OpenGIS Web Mapping standards process?
> >
>
> We are very interested. The current NASA program supporting some MapServer
> development is keen on interoperability and OpenGIS. We look forward to seeing
> your work.
>
> =======================
> Thomas E. Burk
> Professor
> University of Minnesota
> tburk at forestry.umn.edu

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