[mapguide-users] Scribble Coordinate System

James Card James.Card at calcad.com
Thu Feb 12 13:07:01 EST 2009

On Thu, 12 Feb 2009 09:33:51 -0800, Steve G <steve.golden at morganhill.ca.gov> wrote:

> I've looked into the scribblemethodsmgr.cs file and see where the target
> coordinate system is being defined:
> public static string FL83_EF =
> "PROJCS[\"FL83-EF\",GEOGCS[\"LL83\",DATUM[\"NAD83\",SPHEROID[\"GRS1980\",6378137.000,298.25722210]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.017453292519943295]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"false_easting\",656166.667],PARAMETER[\"false_northing\",0.000],PARAMETER[\"scale_factor\",0.999941176471],PARAMETER[\"central_meridian\",-81.00000000000000],PARAMETER[\"latitude_of_origin\",24.33333333333333],UNIT[\"Foot_US\",0.30480060960122]]";
> So I tried to copy the WKT for California State Plane Zone 3 ft and replace FL83_EF, but when I used the tool, it gave me an error.  I noticed that the WKT didn't have the "\" symbols as above.  I would only imagine that typical WKT doesn't go here?  Can someone help me?  Sorry for my ignorance...

The "\" is necessary so the software doesn't think that the quoted text string that began with '"PROJCS[' ends at the first '"' (double-quote) it encounters; the '\"' tells the program that this quote character is part of the data, not the end of the data.

James Card
California CAD Solutions, Inc.
209-578-5580 - Voice
209-521-6493 - FAX

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