[Qgis-user] Customized projection

[Randal Hale]

Good Morning to you!

So if I understand the entire question correctly - Yes that is how I 
would do it (but I'm not a geographer, Mathematician, and/or Geodetic 
person)  . You set the custom projection under Settings -> custom CRS in 
the QGIS menus (at the top).  The projection (once set) will show up as 
a choice for your data for display or reprojection. Just give it a name 
and don't forget to save it.

Randy

-----------------
Randal Hale, GISP
North River Geographic Systems, Inc
http://www.northrivergeographic.com
423.653.3611 rjhale at northrivergeographic.com
<mailto:rjhale at northrivergeographic.com>
twitter:rjhale
http://about.me/rjhale

On 07/10/2013 10:02 PM, Leo Kris Palao wrote:
> Dear QGIS Community,
>
> Good Day!
>
> I am currently working with a project that covers the whole country. 
> My problem is if I want to compute for perimeter, area, and when using 
> terrain analysis modules, the spatial datasets should be projected. 
> But the country covers two UTM zones and I want to use a much broader 
> scale projection. I want to use the Equal Area Cylindrical > /NSIDC 
> EASE-Grid Global Projection/ but I want to set the central meridian to 
> be in the middle of my country of interest. In this case, I can 
> minimize the distortions in my country of interest, right? I do not 
> know what parameter should I change to do it. Below is the code for 
> the abovementioned projection.
>
> +proj=cea +lon_0=0 +lat_ts=30 +x_0=0 +y_0=0 +a=6371228 +b=6371228 
> +units=m +no_defs
>
> Thanks in advance.
>
> -Leo
>
>
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