[mapguide-users] Map or Layer Preview don't show the Geometry

Tue Aug 12 06:06:09 EDT 2008

Alexander,

It looks like we share the same issue. The SRID that we use is 2236. 

I am certainly interested in how this gets resolved within MGOS. It
seems to me though that this is a non-issue for the rest of the
universe. 

My solution thus far has been to duplicate tables in Oracle and do a
transform to a WKT that MGOS "likes". Kind'a, sort'a brutal but it is
what it is.

r,

dennis

________________________________

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Alexander
Fischer
Sent: Tuesday, August 12, 2008 5:26 AM
To: MapGuide Users Mail List
Subject: Re: [mapguide-users] Map or Layer Preview don't show the
Geometry

Hi,
The Oracle SRID or rather the EPSG-Code is 24878.

Now I saw, that the WKTEXT which is shown in webstudio is a little bit
different to the WKTEXT in the MDSYS.CS_SRS - Table.
Could this be the problem? But what can I do for this?

Kind regards,
Alexander Fischer

2008/8/12 Simon Pelicon <simon at sl-king.com>

Hi,
What is Oracle SRID for this geometry?

Simon

Alexander Fischer wrote: 

Hi,
I'm working with MapGuide Open Source (2.0.1), MapGuide Maestro and
King.Oracle (0.7.4).
The Dataconnection works and I created a map and a Layer where I
attached a Geometry with polylines.
Also I edited the Layer style and the initial map view but when I tried
the Preview the browser showed only the mapviewer with an empty map (no
geometry).

When I open the data with the webstudio there is an advice in the
Preview-window:
"The coordinate system is invalid.
Could not create coordinate system forward transformation with specified
coordinate systems.
Exception occurred in method MgCoordinateSystem.CCoordinateSystem at
line 380 in file ..\CoordinateSystem\CoordSys.cpp"

My used Coordinate system is PSAD56 / UTM zone 18S (EPSG:24878)
So I checked the WKT Code with Web Tier Test:
PROJCS["PSAD56 / UTM zone
18S",GEOGCS["PSAD56",DATUM["Provisional_South_American_Datum_1956",SPHER
OID["International
1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6248"]],PR
IMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251
994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4248"]],PROJECTION["T
ransverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["centra
l_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["false_easti
ng",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORIT
Y["EPSG","9001"]],AUTHORITY["EPSG","24878"]]

Status: Pass

I don't know where the problem could be. Has somebody an idea?

I would be pleased to receive an answer.
Kind regards, Alexander Fischer

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