Steve,
So I've done
C:\>svn -r 11667 co https://svn.osgeo.org/mapserver/trunk/mapserver
mapserver-6.0.0-r11667
C:\ mapserver-6.0.0-r11667> patch < difference.patch
patching file mapparser.y
patching file mapserver.h
patching file maplexer.l
C:\ mapserver-6.0.0-r11667> flex -Pmsyy -i -omaplexer.c maplexer.l
but my make results in:
Creating library mapserver_i.lib and object mapserver_i.exp
mapfile.obj : error LNK2019: unresolved external symbol _msyylex_destroy
referenced in function _msUpdateLabelFromString
maputil.obj : error LNK2001: unresolved external symbol _msyylex_destroy
Did I miss a step?
Best Regards,
Brent Fraser
On 5/10/2011 9:32 AM, Lime, Steve D (DNR) wrote:
I've attached a patch against trunk that adds the difference function. It's
untested, give it a whirl and
let me know how it goes... You'll have to re-build the lexer and parser.
Steve
-----Original Message-----
From: Brent Fraser [mailto:bfra...@geoanalytic.com]
Sent: Tuesday, May 10, 2011 9:42 AM
To: Lime, Steve D (DNR)
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] Rendering Challenges
I think it would be very valuable....
Best Regards,
Brent Fraser
On 5/10/2011 8:25 AM, Lime, Steve D (DNR) wrote:
I don't have a difference operator implemented. Wouldn't take much though...
-----Original Message-----
From: Brent Fraser [mailto:bfra...@geoanalytic.com]
Sent: Tuesday, May 10, 2011 9:07 AM
To: Lime, Steve D (DNR)
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] Rendering Challenges
Using
STYLE
GEOMTRANSFORM "difference([shape],buffer([shape], -5))"
COLOR 255 211 127
END
results in the entire original polygon being filled.
Using
GEOMTRANSFORM (difference([shape],buffer([shape], -5)))
results in no fill.
Best Regards,
Brent Fraser
On 5/9/2011 4:20 PM, Lime, Steve D (DNR) wrote:
That's were a difference operator might come in handy since you're looking for
more of a fill-type effect:
GEOMTRANSFORM (difference([shape], buffer([shape], -2)))
or something like that.
Steve
-----Original Message-----
From: Brent Fraser [mailto:bfra...@geoanalytic.com]
Sent: Monday, May 09, 2011 5:18 PM
To: Lime, Steve D (DNR)
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] Rendering Challenges
Steve L.,
Good point; I couldn't do any of this in pre-6.0 either!
I tried the buffer and it worked great (but we might have to work on
the end-cap types in PDF output)! See http://i52.tinypic.com/2qjc9yv.jpg
Best Regards,
Brent Fraser
On 5/9/2011 2:36 PM, Lime, Steve D (DNR) wrote:
These aren't specific to 6.0 though- more of a wish list...
Item 1 might be doable in 6.0 as it sits. In 6.0 a style GEOMTRANSFORM is
really an expression and I exposed
the GEOS buffer operator as a proof-of-concept. For example:
STYLE
GEOMTRANSFORM (buffer([shape], -2))
OUTLINECOLOR 255 0 0
END
Should generate a single pixel red line on the inside of a polygon shape. You
can render it however you'd like.
Note that a GEOMTRANSFORM is performed AFTER a shape is converted from map to
image coordinates so it's effective
for rendering effects only.
If we exposed a few others you'd be able to do some other interesting things
(like fills just inside a line...).
The rest of the ideas are interesting and worthy of discussion.
Steve
-----Original Message-----
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Brent Fraser
Sent: Monday, May 09, 2011 2:52 PM
To: mapserver-users@lists.osgeo.org
Subject: [mapserver-users] Rendering Challenges
While testing v6, I can up with the following list of things I
couldn't do (see http://i56.tinypic.com/8vvprn.png for a graphic):
1. Render lines inside polygon boundary (with or without opacity)
2. Place polygon annotation on/inside boundary line
(http://trac.osgeo.org/mapserver/ticket/1592 point 8.)
3. Rotate anno if required to fit inside a polygon
4. Place polygon annotation outside polygon if anno doesn't fit inside
5. Place line anno above (or below) when using ANGLE FOLLOW
6. Rotate vector symbols to follow lines (a font might work but is a
pain to create)
7. User specified character spacing
8. Erase lines (but not other objects) under annotation
My goal was to use the published shp files
(http://ftp2.cits.rncan.gc.ca/pub/canvec/50k_shp/092/h/canvec_092h06_shp.zip)
without modification and see how close I could get to the published PDF
(http://ftp2.cits.rncan.gc.ca/pub/cantopo/50k_geopdf/092/h/cantopo_092h06_geopdf.zip).
Any suggested rendering techniques are appreciated. I'll file
tickets for those problems deemed worthy.
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