[R-sig-Geo] How to get the code of function .spFindCG in package sp?

[Rick Reeves]

Hao:

The PBSMapping package has reasonably stratightforward polygon area 
calculations.
In fact, I just assembled a tutorial on this topic on my Web site:

http://nceas.ucsb.edu/scicomp/GISSeminar/UseCases/PointPolyRegionsOfInterest/RPointPolyROIDemo.html

As an aside: here at NCEAS we are active R users and I am working to 
post a series of geospatial data processing
tutorials for our residents. Stay tuned for more as soon as I can 
produce them....

Regards,
Rick Reeves
Scientific Programmer
National Center for Ecological Analysis and Synthesis/ UC Santa Barbara

Wang, Hao wrote:
> Hi,
>
> How to dig out the code of the function of .spFindCG, which is used in the function
> Polygon. 
>
> I also wanna to know how to calculate the area of a polygon, and how could I know if
> there are intersections of  boundary in a polygon?
>
>
> Best regards,
>
> Hao
>
> _______________________________________________
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> R-sig-Geo at stat.math.ethz.ch
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>   

-- 
Rick Reeves	
Scientific Programmer / Analyst	
National Center for Ecological Analysis and Synthesis
UC Santa Barbara
reeves at nceas.ucsb.edu
www.nceas.ucsb.edu
805 892 2533

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