Hello Rob,
It has been a while since I produced that code, so I would like to refer you
to a manual where you can find those definitions:
http://remotesensing.org/geotiff/proj_list/guid7.html
1.4.1.4 Lambert Conic Conformal (2 SP Belgium) (EPSG coordinate operation
method code 9803)
Hope this helps
Chris
-----Oorspronkelijk bericht-----
Van: owner-openmap-users_at_bbn.com [mailto:owner-openmap-users_at_bbn.com] Namens
Rob Ratcliff
Verzonden: dinsdag 13 februari 2007 18:10
Aan: Rob Ratcliff
CC: Chris van Lith; openmap-users_at_bbn.com
Onderwerp: Re: [OpenMap Users] Rotation of map in Lambert projection
Chris,
Would you mind defining a, ba and e?
I assume that "a" is equal to the first term (6378137)of the Spheroid
number below.
My northing values are off by a factor of ten so I think I need to tweak
these parameters for my SP coordinate system.
Thanks,
Rob
Rob Ratcliff wrote:
>
> p.s. Here is the definition of the SP coordinate system I'm using:
>
> /*
> * 32139 NAD_1983_StatePlane_Texas_Central_FIPS_4203
> *
>
PROJCS["NAD_1983_StatePlane_Texas_Central_FIPS_4203",GEOGCS["GCS_North_Ameri
can_1983",DATUM["D_North_Ameri
>
> *
>
can_1983",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],
UNIT["Degree",0.017453292519943295]
>
> *
>
],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",700000],PA
RAMETER["False_Northing",3000000],
>
> *
>
PARAMETER["Central_Meridian",-100.3333333333333],PARAMETER["Standard_Paralle
l_1",30.11666666666667],PARAMETE
>
> *
>
R["Standard_Parallel_2",31.88333333333333],PARAMETER["Latitude_Of_Origin",29
.66666666666667],UNIT["Meter",1]]
>
> *
>
http://www.cnr.colostate.edu/class_info/nr502/lg3/datums_coordinates/spcs.ht
ml
>
> * lines.append("<ENVELOPE minx='3112576.5229230225'
> miny='10112154.75590226' " +
> * "maxx='3112956.9819749305' maxy='10112501.491367795' " +
> * "name='Initial_Extent' />");
> */
>
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Received on Tue Feb 13 2007 - 15:36:19 EST