Dear R-help,

I have a matrix of data values specified in polar coordinates, i.e. (r,theta).

I know that I can transform this image to Cartesian coordinates and then use 
image to display the results, however, I want to display the image as is, 
without any coordinate transformations. This would require displaying 
individual "pieces of pie" colour-coded by their data value.

A comparable plotting routine in Matlab would be pcolor (which doesn't require 
a regular grid) or the use of polyfill in IDL to fill each polygon.

Does anyone know of a package that could help me out? Any help appreciated.


Regards,
Justin Peter

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Justin Peter
Research Scientist
Earth System Modelling and Radar Applications Group
Centre for Australian Weather and Climate Research (CAWCR),
A partnership between the Australian Bureau of Meteorology and CSIRO

email:   j.pe...@bom.gov.au<mailto:j.pe...@bom.gov.au>
phone: +61 (0) 3 9669 4838
fax:      +61 (0) 3 9669 4660
mail:  GPO Box 1289K, Melbourne, Victoria 3001, Australia
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



        [[alternative HTML version deleted]]

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to