On Sun, Dec 13, 2015 at 3:33 PM, Alec Ventura <[email protected]> wrote:
> Hi Anna tnks for your answer, > so which EPSG code you suggest i use? UTM? and i have the location of each > point on my attribute table as LAT and LONG, what happens with this > information when it changes to a projected coordinate system? > UTM is probably fine, just create a new location (based on EPSG of the appropriate UTM system) and use v.proj to reproject your vector from the latlon location. > > Very tnks, > Alec > > ------------------------------ > From: [email protected] > Date: Sun, 13 Dec 2015 15:15:07 -0500 > Subject: Re: [GRASS-user] Map scale wrong > To: [email protected] > CC: [email protected] > > > Hi, > > On Sun, Dec 13, 2015 at 3:09 PM, Alec Ventura <[email protected]> > wrote: > > So... i have converted my shape file to this projection: > http://spatialreference.org/ref/epsg/4618/ on Qgis, and have created > > > you should probably use a projected coordinate system, not geographic > coordinate system. The distance you specify in the buffer is now in > degrees, that's why it needs to be so small. > > Anna > > a new projection and mapset with this same epsg on Grass... > But when i import the shape on grass the map scale is still crazy, it says > 1:6, but my area is huge and i can see all my points. On Qgis my same file > has a 1:1.183.641 scale > > And this is a problem because when i try to make the buffers over my > points i have to use a very small distance: > g.run_command('v.buffer', input='PocosSad@Map3', > output='boreholesGrassBuffer', type='point', distance='0.01') > > else my buffer covers the hole area. > > Anyone knows how i can fix this map scale? or why is this strange? > > my shape file is in attach, > Very tnks > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > > > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user >
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