Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

The issue was that the contours vector was 3d. Now i could put the centroids and add the area within the boundaries. I am struck at how to associate the area (cat|area) with the associated isohyetal lines? Any idea. Thanks Daljeet daljeet wrote: Thanks. I am using the first method

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

the isohyetal strips as output. Thanks Daljeet Micha Silver wrote: Hi Daljeet daljeet wrote: Hi Micha, I could create isohyetal lines using the suggested steps: ... clipped... Following are the doubts/questions 1. I saw the details of the raster created from v.surf.rst

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

|52.589905|7.937717|49.761042|1.654373|2.73695|3.324635|646.893547 Thanks Daljeet Micha Silver wrote: On Tue, 28 Jul 2009 11:24:19 -0700 (PDT) daljeet sachdev...@yahoo.com wrote: //d.vect Ind_rain_orig //The Ind_rain_orig looks like this - when the region is set to vector of Kerala

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

mistake. What I am doing which is making the loss of area in the case of polygons. Thanks daljeet Moritz Lennert wrote: On 27/07/09 21:38, daljeet wrote: Hi, I have the point rainfall data of a region. Few of the point data are outside the region of interest. I am making

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

/n3344342/Ind_adm2_ker.png //area of Kerala state v.report Ind_adm2_ker option=area units=k cat|area 1|37700.7050169835 //import of rainfall data of the country for a week (available in ascii format) v.in.ascii input=/home/daljeet/grassdata/India_Data_From_DST/india_rain_orig.txt output

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

(whole country) the image is like //g.region vect=Ind_adm2_v //d.vect Ind_rain_orig http://n2.nabble.com/file/n3345107/Ind_rain_orig_reg_adm2.png Thanks Daljeet Moritz Lennert wrote: On 28/07/09 18:42, daljeet wrote: Hi Moritz, I am new to GRASS and the basic concepts of this field. Below

Re: [GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

http://www.intevation.de/rt/webrt?serial_num=4292display=History The problem that we are facing may be related to above issue. Thanks Daljeet daljeet wrote: These white spots in the voronoi vector may be the cause. But i ran the voronoi module on the archsites vector of the Spearfish60

[GRASS-user] how to calculate area of voronoi polygons considering the boundary of the catchment

outside the region of interest. In case of the polygon which is partially outside the region of interest, the area which is inside the region of interest need to be calculated. How to calculate this? How can i calculate the area of voronoi polygon. Thanks in advance. Daljeet -- View this message