comp.lang.idl-pvwave archive - RDF feed
type: channel
description: Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
items: map_image or map_patch?
items: Re: map_image or map_patch?

map_image or map_patch?
type: item
description: Dear IDL users, I have recently started to use map_patch for warping data to various map projections and have been pretty happy with the results. Some recenr testing I have done shows that map_patch is about 5 times slower in IDL 5 compared to IDL 4. This is a little troubling as map_image only slowed down by 1.5. These are all rough figures you understand! I was womdering if anyone had any pointers in choosing which of map_image or map_patch to use in a given case? If it helps, most of my data is 1x1 degree regular grids of ints or floats. Thanks, Ian Sprod CIRES
creator: Ian E. Sprod
date: 1997-04-23T07:00:00-00:00

Re: map_image or map_patch?
type: item
description: Ian Spord writes: > I was womdering if anyone had any pointers in choosing which of > map_image or map_patch to use in a given case? If it helps, most of > my data is 1x1 degree regular grids of ints or floats. I always thought the rule of thumb was this: (1) Try Map_Image. (2) If that doesn't work, try Map_Patch. (3) If that doesn't work either, order NCAR graphics. :-) David ---------------------------------------------------------- David Fanning, Ph.D. Fanning Software Consulting Customizable IDL Programming Courses Phone: 970-221-0438 E-Mail: davidf@dfanning.com Coyote's Guide to IDL Programming: http://www.dfanning.com
creator: davidf
date: 1997-04-23T07:00:00-00:00