Dear all, I would like to project a graphics file of some colour coded geo data that is already given in lat-lon with corners specified in lat-lon onto a map. The projection of the result should be flexible. In the end the resulting plot shows a section of the earth, either from a satallite perspective (ortho) or some convenient projection.
All examples I found seem to be doing different things or special cases that I have trouble to generalize or modify. These examples transform the data from some (often unpecified) system to a coordinate system that suites the chosen projection. But the fact that the geo data file is given in lat-lon with corners must simplify everything and should make the chosen projection arbitrary. The resolution of the data file must also be arbitrary and should not appear in the code. I do not see why the final projection should require beforehand a change of the geo-data coordinate system *by hand* i.e. typing in the transform formulas and extracting pixel sizes. I would have thought that to avoid this is the whole point of using map toolkits. I imagine a function that takes the parameters - datafile, alternatively an array with a colour value or RGB for each lon-lat coordinate - its lon-lat corners, - a basemap map-object i want the data projected onto - and the projection specifier (possibly with desired corners if different from the maps corners) that determines how i want to see the the resulting piece of the globe. Could someone explain to me (a python newbie) what the sequence of steps/functions would have to be or which predefined methods are doing this. Regards Daniel ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
