[OSRS-PROJ] The "almost" Lamber Conformal Conic Projection
Frank Warmerdam
warmerdam at pobox.com
Mon Mar 3 23:46:01 EST 2003
Gerald I. Evenden wrote:
> Very interesting. The results at this end from the script are:
>
> [gie at localhost src]$ ./lcca
> forward projection of:
>
> 34d08'11.291 37d31'17.625
> 15707.96 623165.96
> EPSG guide 7, pdf p. 22 gives values of: 15707.96 623165.96
>
> inverse check of forward
>
> 34d08'11.29100"E 37d31'17.62500"N
> [gie at localhost src]$
>
> Ahhhhhh---I see it. PUT "no_defs" in the script. "Spec'd but
> not used". <<------------------------
>
> I will correct the lcca.txt script.
>
> Your local datum overrode the +b facor. Look carefully at the
> beginning of the -V output.
Gerald,
Of course you are right. I get matching results to the cm with the
no_defs as well.
The lcca projection has been committed to CVS and is in the 4.4.6 release.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
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