Hi:Markus NetelerThanks for your reply. I have upload the error information as a annex. --------------------- The following is my working,I wonder if you can give me some advises:
We provide a web server for other clients to do some geoprocessing.Here suppose I have two process A and B. Both of them are designed to handle raster data(tiff). So in each of them I have to do the following steps: 1) import tiff to grass format 2) handle the tiff and get the grass result 3) export the grass result to tiff I am now confusing with the data import and export. As what you have side,I should do the same work in each process (A and B) -- g.region...... r.buffer....export. So the problem occurs,the default location and mapset,should I define the respective location and mapset in different process(A and B)? If so I should write a grassrc file for each process? I have used a xml confignation file to get the grass info : <grass-database> <!--Directory where GRASS lives--> <grass-database-path>d:\My Documents\GIS DataBase</grass-database-path> <!-- path of .grassrc6 file --> <grass-grassrc-path>C:\Documents and Settings\Administrator\.grassrc6</grass-grassrc-path> <!-- mapset and location directory --> <grass-mapset>PERMANENT</grass-mapset> <grass-location>spearfish60</grass-location> </grass-database> And now it seems I have made a very stupid mistake. So I want to know how to make new location and mapset and the grassrc file in my program for each process? Maven 2009/6/10 2009/6/10 Markus Neteler <[email protected]> > On Tue, Jun 9, 2009 at 9:36 AM, maven apache<[email protected]> > wrote: > > In fact I have create two folder nlocation and nmapset in the hiberarchy > of > > (nlocation/nmapset),then I start the grass with the gui ,I got the error > > messgae that I am mot clear?.... > > Please (re)post the error. > > > 1) I want to know the relation of the grassrc file and the contere > location > > or mapset ? Which should be created frist? > > The grassrc is created by GRASS. > > > 2) If I do my process in the gui ,then should I do the g.region process? > > You can control g.region either from command line of through the GUI. > > > 3) Some data which can be displayed in the grass gui can not exported > > perfectly,most of them contains only black blank after exproted..... > > Thanks! > > If you speak about raster maps then first run > > g.region rast=yourmap > > then export. Otherwise the current region part is exported which > does not necessarily match the map. > > Markus >
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