Hi Mark,
I'll try to use latest build, probably it will help.
But I have one more question regarding 7 parameter trensformation.
Bursa Wolf transformation is valid for rotation angles about 2'' and
less. My transformation parameters include rotation of 11'', and 6'',
how can I transform data with that parameters (3 translation, 3
rotations and scale) if the 7PARMETER does not include any scale
parameters.
Why it is called 7PARMETER? It only treats 6 parameters (2
translations and 3 rotations).
Can you please explain me what to do.
Thnaks,
Stipica Pavicic
--- In [email protected], "Mark Ireland" <[EMAIL PROTECTED]> wrote:
> Hi Stipica
> I tried this with build 1636 and didn't have this problem at all. In
fact I got a message stating...
>
> Reproject: Using datum conversion type `SevenParmInv'
>
> ...which seems to me to indicate the datum has been recognised
properly.
>
> My suggestions would be...
>
> 1) I've attached the coordsysdef I created. Try this one.
> 2) Upgrade your FME build to the latest beta and see if that helps.
BTW What build are you using?
>
> Besides this you don't need to put an entry into coordsys.db - FME
should pick up everything in mycoordsysdefs automatically.
>
> Hope this helps. I don't know why 7Param datums have a bwscale
defined - but the help system is quite clear - this parameter is 'used
by BURSA only'.
>
> Regards,
>
> Mark
>
> Mark Ireland, Product Support Engineer
> Safe Software Inc. Surrey, BC, CANADA
> [EMAIL PROTECTED] http://www.safe.com
> Solutions for Spatial Data Translation, Distribution and Access
>
> > -----Original Message-----
> > From: stipicapavicic [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, March 17, 2005 3:20 AM
> > To: [email protected]
> > Subject: [fme] Custom spatial reference system
> >
> >
> >
> >
> > Hi group,
> > can anyone tell me what I'm doing wrong.
> > I wanted to defnine the new spatial reference system in FME.
> > First I have defined geodetic datum in MyCoordSysDefs.fme file.
> >
> > #---------------------------------------------
-----------------------
> >
> > # Hrvatski geodetski datum 1901
> > DATUM_DEF HR1901 \
> > DESC_NM "Hrvatski datum 1901" \
> > SOURCE "State Geodetic Administration, Croatia" \
> > ELLIPSOID BESSEL \
> > USE 7PARAMETER \
> > DELTA_X 551.73 \
> > DELTA_Y 162.86 \
> > DELTA_Z 467.93 \
> > BWSCALE -4.820429 \
> > ROT_X -6.037326 \
> > ROT_Y -1.957325 \
> > ROT_Z 11.381551
> >
> > In the same file (MyCoordSysDefs.fme) I've added a definition
> > of coordinate system #
> > --------------------------------------------------------------
> > # Croatia GK zone 5
> >
> > COORDINATE_SYSTEM_DEF HR_GK_5 \
> > DESC_NM "Croatian GaussKruger Zone 5 - 15�" \
> > SOURCE "State Geodetic Administration, Croatia" \
> > UNIT METER \
> > DT_NAME HR1901 \
> > PROJ TM \
> > PARM1 15 \
> > ORG_LAT 0.0 \
> > SCL_RED 0.9999 \
> > MAP_SCL 1.0 \
> > X_OFF 5500000.0 \
> > Y_OFF 0
> > # ----------------------------------------------------------------
> >
> > In the coordsys.db I've added one line
> > HR_GK_5|Croatia GK Zone 5 - 15�|EUROPE||HR1901|TM|METER
> >
> > When I restart the FME and trie to convert data form LL84 to
> > new defined system (HR_GK_5) I got message in the Translation Log:
> > "Unknown datum name 'HR1901' or ellipsoid name ''. No
> > coordinate system set."
> >
> > I don't know what else to do. I have tried do make such
> > definition in LocalCoordSysDefs.fme but I get the same result.
> >
> > PS
> > how the 7PARAMETER transformation treats BWSACLE. By reading
> > manual it seems that BWSCLAE can be applied only to BURSA
> > transformation but in LocalCoordSysDefs.fme there are
> > definition wich combines these parameters (7PARAMETER and
BWSCALE).
> >
> > Thanks,
> >
> > Stipica Pavicic
> >
> >
> >
> >
> >
> >
> >
> >
> > Get the maximum benefit from your FME, FME Objects, or
> > SpatialDirect via our Professional Services team. Visit
> > www.safe.com/services for details.
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
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