[Proj] proj and Dutch RD

Wed Jan 11 07:56:45 PST 2006

On Wednesday 11 January 2006 09:31 am, Roger Oberholtzer wrote:
> I am trying to use proj on a Dutch project using 'RD'. I have
> encountered a problem.
>
> I am trying the command:
>
> 	cs2cs -r +proj=latlong +ellps=WGS84 +to +proj=stere
> +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.9999079
> +x_0=155000 +y_0=463000 +ellps=bessel +units=m +no_defs
	...
	Seeing the "Double Stereographic" below I feel that you should be using
+proj=sterea rather than than the American or Snyder stere.

> 	PROJECTION["Double_Stereographic"],
> 	PARAMETER["Scale_Factor",0.9999079],
> 	PARAMETER["False_Easting",155000],
> 	PARAMETER["False_Northing",463000],
> 	PARAMETER["Central_Meridian",5.38763888888889],
> 	PARAMETER["Latitude_Of_Origin",52.15616055555555],
> 	UNIT["Meter",1]]
>
> The 'PARAMETER' items match my command line. I am not sure about the
> others, like the DEGREE unit and the Bessel values.

-- 
Jerry and the low riders:Daisy May and Joshua
"The being cannot be termed rational or virtuous,
who obeys any authority, but that of reason."
---Mary Wollstonecraft 1792