Things are comming along but .... please look at this mapfile
dump
David Fawcett
David.Fawcett at STATE.MN.US
Mon Nov 29 15:18:30 EST 2004
Joseph,
Your first objective is to find out more about your California Zips
shapefile. Is it projected, if so, what is the projection? Where did
you get it from, is there any metadata or documentation there?
Where did you get the values for EXTENT in your map file? If you got
these values from your Zips shapefile, I would guess that your data is
in UTM, you would then have to determine what UTM zone it is. If you
run shpdump, shpinfo, or gdalinfo on the shapefile, you can get it's
extent.
Take a look at the mapfile documentation regarding projections.
http://mapserver.gis.umn.edu/doc42/mapfile-reference.html#projection
To use projections in MapServer, you define a PROJECTION block in the
MAP object to set the projection for the map to be created. You then
create PROJECTION blocks in each layer, defining the projection that the
layer data exists in.
In your map file, you have set the projections in both your MAP object
and your 'calzip' layer to be 'latlong'. You need to set the projection
for the 'calzip' layer to the definition for whatever projection it is
in.
David J. Fawcett
MN Office of Environmental Assistance
>>>How do I find out what my extent should be for lat/long?
-figure out what projection you want your final map to be in. It can
be in the same projection as any of your layers, or something completely
different. There are trade-offs for every projection (or lack of one).
Once you figure out what output projection you want, set the EXTENT,
UNITS, and PROJECTION object in the MAP file to match that projection.
If your 'calzip' polygon really is in UTM (my assumption) and you like
the way that it looks, you may choose to use UTM as the output
projection and project your lat/long teacher points to UTM.
David.
>>> Joseph Norris <sirronj at PACBELL.NET> 11/29/2004 1:48:04 PM >>>
Thanks for responding David,
I follow you on most of this except for the following:
If all of your data is truly unprojected (lat/long), then all you
should need to do is change your extent to the appropriate boundaries
for your data in lat/long.
How do I find out what my extent should be for lat/long?
Here is my modified file - taking into account - I think - what you
have
specified.
MAP
EXTENT 5706290.827754 -192053.2 9127890.404246 3226086.749
TEMPLATEPATTERN "map"
IMAGECOLOR 255 255 255
IMAGETYPE gif
SHAPEPATH
"/usr/local/apache/htdocs/mco.communityservers.com/htdocs/maps/teacher/tdata
"
SIZE 600 600
STATUS ON
UNITS DD
NAME "calmap"
PROJECTION
"proj=latlong"
END
OUTPUTFORMAT
NAME gif
MIMETYPE image/gif
DRIVER GD/GIF
EXTENSION gif
IMAGEMODE PC256
TRANSPARENT FALSE
END
SYMBOL
NAME "circle"
TYPE ELLIPSE
FILLED TRUE
POINTS
1 1
END
END
LEGEND
IMAGECOLOR 255 255 255
KEYSIZE 20 10
KEYSPACING 5 5
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 0
COLOR 0 0 0
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS TRUE
POSITION CC
END
POSITION LL
STATUS EMBED
END
QUERYMAP
COLOR 255 255 0
SIZE -1 -1
STATUS OFF
STYLE HILITE
END
SCALEBAR
COLOR 0 0 0
IMAGECOLOR 255 255 255
INTERVALS 4
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 0
COLOR 0 0 0
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS TRUE
END
POSITION LL
SIZE 200 3
STATUS OFF
STYLE 0
UNITS MILES
END
WEB
IMAGEPATH ""
IMAGEURL ""
QUERYFORMAT text/html
END
LAYER
CLASSITEM "zcta"
DATA "cal_zp_st"
NAME "calzip"
SIZEUNITS PIXELS
STATUS DEFAULT
TOLERANCE 0
TOLERANCEUNITS PIXELS
TYPE POLYGON
UNITS DD
PROJECTION
"proj=latlong"
END
CLASS
NAME "Zip Boundries"
EXPRESSION /./
STYLE
MAXSIZE 100
MINSIZE 1
OUTLINECOLOR 204 204 204
SIZE 1
SYMBOL 0
END
END
END
LAYER
NAME "points"
SIZEUNITS PIXELS
STATUS DEFAULT
TOLERANCE 0
TOLERANCEUNITS PIXELS
TYPE POINT
UNITS DD
PROJECTION
"proj=latlong"
END
CLASS
NAME "teacher"
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 2
COLOR 255 102 102
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS FALSE
POSITION AUTO
END
STYLE
COLOR 255 102 102
MAXSIZE 100
MINSIZE 1
OUTLINECOLOR 255 255 255
SIZE 8
SYMBOL "circle"
END
END
FEATURE
POINTS
-121.507 38.5263
END
TEXT "Mary Lyn Kagan"
END
FEATURE
POINTS
-122.451 37.7752
END
TEXT "Greg D'Amico"
END
FEATURE
POINTS
-119.646 36.3426
END
TEXT "Leslie Steffen"
END
FEATURE
POINTS
-122.54 38.0065
END
TEXT "john antico"
END
FEATURE
POINTS
-116.976 32.7712
END
TEXT "SWANSONG BRAHMAN"
END
END
END
#Joseph Norris (Perl - what else is there?/Linux/CGI/Mysql) print
@c=map chr
$_+100,(6,17,15,16,-68,-3,10,11,16,4,1,14,-68,12,1,14,8,-68,4,-3,-1,7,1,14,-
68,-26,11,15,1,12,4,-68,-22,11,14,14,5,15,-90);
-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at lists.umn.edu]On
Behalf Of David Fawcett
Sent: Monday, November 29, 2004 11:26 AM
To: MAPSERVER-USERS at lists.umn.edu
Subject: Re: [UMN_MAPSERVER-USERS] Things are comming along but ....
please
look at this mapfile dump
Joseph,
A few things that I noticed that are probably related to your problem:
It looks like your EXTENT is in meters suggesting a UTM projection.
Your UNITS specify DD, suggesting that your data is in Lat Long.
It also looks like you are creating your new points using Lat Long.
If all of your data is truly unprojected (lat/long), then all you
should need to do is change your extent to the appropriate boundaries
for your data in lat/long.
My guess is that you got your EXTENT from your Zip Code shapefile,
which suggests that it is projected to something like UTM. If this is
the case, you will have to add a PROJECTION block for the map and
PROJECTION information for each layer in your map file.
David.
David J. Fawcett
MN Office of Environmental Assistance
>>> Joseph Norris <sirronj at PACBELL.NET> 11/29/2004 1:12:40 PM >>>
Hello again,
I am now on the quest to add points to my map of zips in California.
I
have
the following map file but the points are not showing up in the layer.
If
you can see anything that I need to change - please let me know. I
have
found that it is easier to work from a dump of the mapfile - make
adjustments then return to my perl script and make sure that these
adjustments happen.
Thanks to all.
MAP
EXTENT 5706290.827754 -192053.2 9127890.404246 3226086.749
TEMPLATEPATTERN "map"
IMAGECOLOR 255 255 255
IMAGETYPE gif
SHAPEPATH
"/usr/local/apache/htdocs/mco.communityservers.com/htdocs/maps/teacher/tdata
"
SIZE 600 600
STATUS ON
UNITS DD
NAME "calmap"
OUTPUTFORMAT
NAME gif
MIMETYPE image/gif
DRIVER GD/GIF
EXTENSION gif
IMAGEMODE PC256
TRANSPARENT FALSE
END
SYMBOL
NAME "circle"
TYPE ELLIPSE
FILLED TRUE
POINTS
1 1
END
END
SYMBOL
NAME "plus"
TYPE VECTOR
POINTS
0.5 0
0.5 1
-99 -99
0 0.5
1 0.5
END
END
LEGEND
IMAGECOLOR 255 255 255
KEYSIZE 20 10
KEYSPACING 5 5
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 0
COLOR 0 0 0
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS TRUE
POSITION CC
END
POSITION LL
STATUS EMBED
END
QUERYMAP
COLOR 255 255 0
SIZE -1 -1
STATUS OFF
STYLE HILITE
END
SCALEBAR
COLOR 0 0 0
IMAGECOLOR 255 255 255
INTERVALS 4
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 0
COLOR 0 0 0
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS TRUE
END
POSITION LL
SIZE 200 3
STATUS OFF
STYLE 0
UNITS MILES
END
WEB
IMAGEPATH ""
IMAGEURL ""
QUERYFORMAT text/html
END
LAYER
NAME "points"
SIZEUNITS PIXELS
STATUS ON
TEMPLATE "bogus.html"
TOLERANCE 10
TOLERANCEUNITS PIXELS
TYPE POINT
UNITS METERS
CLASS
NAME "buoy"
LABEL
SIZE MEDIUM
TYPE BITMAP
BUFFER 2
COLOR 255 102 102
FORCE FALSE
MINDISTANCE -1
MINFEATURESIZE -1
OFFSET 0 0
PARTIALS FALSE
POSITION AUTO
END
STYLE
COLOR 255 102 102
MAXSIZE 100
MINSIZE 1
OUTLINECOLOR 255 255 255
SIZE 8
SYMBOL "circle"
END
END
FEATURE
POINTS
-121.507 38.5263
END
TEXT "Mary Lyn Kagan"
END
FEATURE
POINTS
-122.451 37.7752
END
TEXT "Greg D'Amico"
END
FEATURE
POINTS
-119.646 36.3426
END
TEXT "Leslie Steffen"
END
FEATURE
POINTS
-122.54 38.0065
END
TEXT "john antico"
END
FEATURE
POINTS
-116.976 32.7712
END
TEXT "SWANSONG BRAHMAN"
END
END
LAYER
CLASSITEM "zcta"
DATA "cal_zp_st"
NAME "calzip"
SIZEUNITS PIXELS
STATUS DEFAULT
TOLERANCE 0
TOLERANCEUNITS PIXELS
TYPE POLYGON
UNITS METERS
CLASS
NAME "Zip Boundries"
EXPRESSION /./
STYLE
MAXSIZE 100
MINSIZE 1
OUTLINECOLOR 204 204 204
SIZE 1
SYMBOL 0
END
END
END
END
#Joseph Norris (Perl - what else is there?/Linux/CGI/Mysql) print
@c=map chr
$_+100,(6,17,15,16,-68,-3,10,11,16,4,1,14,-68,12,1,14,8,-68,4,-3,-1,7,1,14,-
68,-26,11,15,1,12,4,-68,-22,11,14,14,5,15,-90);
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