Image projection question
Stephen Davies
sdc at SDC.COM.AU
Fri Jun 15 22:33:42 EDT 2007
G'day Frank.
Thank you again for your feedback.
My problem with displaying the shapefile was one of colour. When I added
a CLASS to the unit layer, it became visible.
I checked my spatial_ref_sys table and the 28354 definition is correct.
I tried expanding the map PROJECTON definition but this had no visible
effect.
What did have an effect however, was to change the map projection to:
PROJECTION
"init=epsg:28354"
END
This fixed the polygon location relative to the raster - but broke the
reference map. It no longer shows the map location.
As I think I mentioned earlier, this was the reason that I originally
chose eqc as the map projection. It was the only one I could find that
produced matching map, reference map and scale map.
I am attaching the complete map file that was used in this latest test.
If you could identify why the reference map has stopped working, I
think my whole problem might be solved.
Cheers and thanks,
Stephen
On Saturday 16 June 2007 00:18, you wrote:
> Stephen Davies wrote:
> > MAP
> >
> > NAME benparts1
> >
> >
> > PROJECTION
> > "proj=eqc"
> > "lon_0=139.591e"
> > END
>
> Stephen,
>
> I suspect the above is your problem. The above definition will
> default to using the WGS84 as the datum, but everything else is GRS80
> (the GDA94 ellipsoid). Hmm, on review GRS80 is a very close match to
> WGS84 as an ellipsoid, so this isn't so likely. Nevertheless, it
> would make me feel better if you included an explicit ellipsoid.
>
> eg.
>
> PROJECTION
> "+proj=eqc +lon_0=139.59 +ellps=GRS80 +towgs84=0,0,0 +no_defs"
> END
>
> You mentioned you weren't able to get the shapefile to show:
>
> LAYER
> # CONNECTIONTYPE postgis
> NAME "unit"
> DATA "/var/shapefiles/CondoCitrus"
> CONNECTION "user=scldad dbname=benparts"
> STATUS default
> TYPE POLYGON
> # FILTER "unit_id in (0)"
> PROJECTION
> "init=epsg:28354"
> END
> MAXSCALE 5000000
> END
>
>
> I would suggest also commending out the CONNECTION. I assume the
> shapefile is /var/shapefiles/CondoCitrus.shp?
>
> You might also consider replacing init=epsg:28354 with the following
> definition just to be sure the expected definitions are being used.
>
> PROJECTION
> "+proj=utm +zone=54 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0
> +units=m +no_defs" END
>
> You should also check the spatial_ref_sys table in postgis, to
> verify the same proj.4 string is being used there for SRID 28354.
>
> Best regards,
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-------------- next part --------------
#
# Copyright Stephen Davies Consulting P/L 2005
#
# template map file for Agua Soil Database
#
MAP
NAME benparts1
PROJECTION
"init=epsg:28354"
END
SIZE 600 600
FONTSET "/var/www/html2/benparts/fonts.list"
SYMBOLSET "/var/www/html2/benparts/symbols"
UNITS METERS
IMAGETYPE jpeg
OUTPUTFORMAT
NAME jpeg
DRIVER "GD/JPEG"
MIMETYPE "image/jpeg"
IMAGEMODE RGB
EXTENSION "jpg"
FORMATOPTION "QUALITY=80"
END
IMAGECOLOR 255 255 255
WEB
template /var/www/html2/benparts/templates/test1.html
imagepath "/var/www/html2/tmp/"
imageurl "/tmp/"
END
LEGEND
KEYSIZE 18 12
LABEL
TYPE BITMAP
SIZE MEDIUM
COLOR 0 0 94
END
STATUS ON
END
LAYER
TYPE RASTER
NAME "bkgrnd"
STATUS DEFAULT
PROJECTION
"init=epsg:28354"
END
DATA "/var/www/html2/benparts/rasters/SwanReach_Citrus_Mar07_2m.tif"
# OFFSITE 0 0 0
PROCESSING "DITHER=YES"
END
LAYER
CONNECTIONTYPE postgis
NAME "geog"
DATA "geom from geog"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE POLYGON
PROJECTION
"init=epsg:4283"
END
CLASS
STYLE
# COLOR 233 233 233
OUTLINECOLOR 11 11 11
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "unit"
DATA "geom from unit"
CONNECTION "user=scldad dbname=benparts"
STATUS default
TYPE POLYGON
# FILTER "unit_id in (0)"
PROJECTION
"init=epsg:4283"
END
MAXSCALE 5000000
LABELITEM "name"
CLASSITEM "mstatus"
CLASS
# NAME "Unknown"
EXPRESSION "x"
STYLE
OUTLINECOLOR 127 127 127
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "Saturated"
EXPRESSION "1"
STYLE
COLOR 0 168 255
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "..."
EXPRESSION "2A"
STYLE
COLOR 0 255 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME ".. "
EXPRESSION "2B"
STYLE
COLOR 115 255 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "."
EXPRESSION "2C"
STYLE
COLOR 168 255 168
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "Refill Point"
EXPRESSION "2D"
STYLE
COLOR 214 255 168
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "."
EXPRESSION "3A"
STYLE
COLOR 255 255 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "Onset of Water Stress"
EXPRESSION "3B"
STYLE
COLOR 255 235 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME ".."
EXPRESSION "4A"
STYLE
COLOR 255 215 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "..."
EXPRESSION "4B"
STYLE
COLOR 255 195 0
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
CLASS
NAME "Severe Water Stress"
EXPRESSION "5"
STYLE
COLOR 255 0 96
END
LABEL
MINDISTANCE 150
POSITION CC
SIZE MEDIUM
COLOR 255 0 255
FORCE TRUE
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "cadt"
DATA "geom from cad"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE POINT
PROJECTION
"init=epsg:4283"
END
FILTER "gtype='T' and client_id=49"
CLASSITEM "type"
CLASS
EXPRESSION "201"
STYLE
COLOR 0 255 0
END
STYLE
SYMBOL "tree"
COLOR 0 255 0
SIZE 9
END
END
CLASS
EXPRESSION "754"
LABEL
MINDISTANCE 150
POSITION CR
SIZE TINY
COLOR 0 0 0
FORCE TRUE
END
TEXT 'WM'
STYLE
SYMBOL "dot"
COLOR 0 0 0
SIZE 5
END
END
CLASS
EXPRESSION "757"
LABEL
MINDISTANCE 150
POSITION CR
SIZE TINY
COLOR 0 0 0
FORCE TRUE
END
TEXT 'Bore'
STYLE
SYMBOL "dot"
COLOR 0 0 0
SIZE 5
END
END
CLASS
EXPRESSION "712"
STYLE
SYMBOL "stobie"
SIZE 4
COLOR 255 0 168
END
END
CLASS
EXPRESSION /./
STYLE
SYMBOL "dot"
COLOR 9 9 9
SIZE 5
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "cadl"
DATA "geom from cad"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE LINE
PROJECTION
"init=epsg:4283"
END
FILTER "gtype in ('L','P') and client_id=49"
CLASSITEM "type"
CLASS
EXPRESSION "908"
STYLE
SYMBOL "fence"
SIZE 10
COLOR 0 255 0
END
STYLE
SYMBOL "dot"
COLOR 0 255 0
SIZE 1
END
END
CLASS
EXPRESSION "712"
STYLE
SYMBOL "power"
SIZE 8
COLOR 255 0 168
END
STYLE
SYMBOL "dot"
COLOR 255 0 168
SIZE 1
END
END
CLASS
EXPRESSION "602"
STYLE
SYMBOL "dot"
COLOR 137 205 190
SIZE 1
END
END
CLASS
EXPRESSION /./
STYLE
COLOR 9 9 9
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "probe"
DATA "geom from probe"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE POINT
# FILTER "probe_id in (0)"
PROJECTION
"init=epsg:4283"
END
MAXSCALE 5000000
LABELITEM "location"
CLASS
NAME "Probe (Right Click to select)"
STYLE
COLOR 0 214 0
SYMBOL 'circle'
SIZE 7
END
LABEL
MINDISTANCE 15
POSITION CR
SIZE SMALL
COLOR 0 0 0
FORCE TRUE
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "bore"
DATA "geom from bore"
CONNECTION "user=scldad dbname=benparts"
FILTER "id in (0)"
STATUS DEFAULT
TYPE POINT
PROJECTION
"init=epsg:4283"
END
LABELITEM "name"
CLASS
NAME "Bore"
STYLE
COLOR 0 0 214
SYMBOL 'circle'
SIZE 7
END
LABEL
MINDISTANCE 150
POSITION CR
SIZE TINY
COLOR 9 9 9
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "weather"
DATA "geom from weather_station"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE POINT
FILTER "id in (0)"
PROJECTION
"init=epsg:4283"
END
LABELITEM "name"
CLASS
NAME "Weather Station"
STYLE
COLOR 214 0 0
SYMBOL 'circle'
SIZE 7
END
LABEL
MINDISTANCE 150
POSITION CR
SIZE TINY
COLOR 9 9 9
END
END
END
LAYER
CONNECTIONTYPE postgis
NAME "onswitch"
DATA "geom from onswitch using unique id using SRID=4283"
CONNECTION "user=scldad dbname=benparts"
STATUS DEFAULT
TYPE POLYGON
PROJECTION
"init=epsg:4283"
END
MAXSCALE 5000000
CLASS
STYLE
OUTLINECOLOR 0 0 255
MINWIDTH 3
END
END
END
LAYER
NAME 'copyright'
TYPE ANNOTATION
STATUS DEFAULT
TRANSFORM FALSE # coordinates are in pixels
FEATURE
POINTS 10 595 END
END
CLASS
LABEL
TYPE TRUETYPE
FONT arial
SIZE 8
COLOR 255 255 255
POSITION CR
END
TEXT 'Photography supplied by MAPLAND, Environment Information, Dept Environment & Heritage'
END
END
#
LAYER
NAME 'movie'
TYPE ANNOTATION
STATUS DEFAULT
TRANSFORM FALSE # coordinates are in pixels
FEATURE
POINTS 270 10 END
END
CLASS
LABEL
TYPE TRUETYPE
FONT arial
SIZE 10
COLOR 251 196 6
POSITION CR
END
TEXT 'Status at 2007-06-13 07:00:00 .'
END
END
#
# Start of reference map
#
REFERENCE
IMAGE /var/www/html2/benparts/refmaps/sa.png
EXTENT -1191229.87 -4230140.65 167981.11 -2872042.86
SIZE 120 120
STATUS ON
MINBOXSIZE 5
MAXBOXSIZE 100
COLOR 0 255 0
OUTLINECOLOR 0 0 0
MARKERSIZE 8
MARKER 'star'
END
#
# Start of scalebar
#
SCALEBAR
IMAGECOLOR 0 0 0
LABEL
COLOR 255 255 255
SIZE TINY
END
STYLE 1
SIZE 200 2
COLOR 255 255 255
UNITS KILOMETERS
INTERVALS 2
TRANSPARENT TRUE
STATUS ON
END
END
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