<div dir="ltr">Hi,<div>I have to convert the vector(point) data into raster, I imported point data into the GRASS and then used v.to.rast command to convert vector to raster map, but the same problem: nothing is displayed on the display, and query data is giving a value of zero in the map display.</div><div>If it is a problem with projection and region, please help me to resolve this.</div><div>the point data's metadata is :</div><div><div>Name: RGP_Before_2014_Wagner_s_80_E_of_Hwy_80_E_of_HWY_20_2013_ |</div><div> | Mapset: battu |</div><div> | Location: RedRiverValley |</div><div> | Database: /home/shared/research/GRASSDATA |</div><div> | Title: |</div><div> | Map scale: 1:1 |</div><div> | Name of creator: battu |</div><div> | Organization: |</div><div> | Source date: Mon Dec 15 16:18:26 2014 |</div><div> | Timestamp (first layer): none |</div><div> |----------------------------------------------------------------------------|</div><div> | Map format: native |</div><div> |----------------------------------------------------------------------------|</div><div> | Type of map: vector (level: 2) |</div><div> | |</div><div> | Number of points: 10182 Number of centroids: 0 |</div><div> | Number of lines: 0 Number of boundaries: 0 |</div><div> | Number of areas: 0 Number of islands: 0 |</div><div> | |</div><div> | Map is 3D: No |</div><div> | Number of dblinks: 1 |</div><div> | |</div><div> | Projection: UTM (zone 14) |</div><div> | |</div><div> | N: 46.98666723 S: 46.97957943 |</div><div> | E: -98.65789266 W: -98.66294363 |</div><div> | |</div><div> | Digitization threshold: 0 |</div><div> | Comment: |</div><div> | </div></div><div>and </div><div><div>g.proj -p gives me the following:</div><div> </div><div>-PROJ_INFO-------------------------------------------------</div><div>name : Universal Transverse Mercator</div><div>proj : utm</div><div>datum : wgs84</div><div>ellps : wgs84</div><div>zone : 14</div><div>no_defs : defined</div><div>-PROJ_UNITS------------------------------------------------</div><div>unit : metre</div><div>units : metres</div><div>meters : 1</div></div><div><br></div><div><br></div><div>Could please anyone help me solve this issue. I need to generate raster maps from given vector(point) data.</div><div><br></div><div>Thanks</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 9, 2014 at 2:09 PM, Thomas Adams <span dir="ltr"><<a href="mailto:tea3rd@gmail.com" target="_blank">tea3rd@gmail.com</a>></span> wrote:<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Babitha,<div><br></div><div>How did you do your vector point to raster interpolation; v.surf.bspline; v.surf.idw; v.krige,…? Did you use d.rast to display the raster map; do you have a MASK set; is your GRASS Region set correctly?</div><div><br></div><div>Knowing your steps in more detail would be helpful…</div><div><br></div><div>Tom</div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Tue, Dec 9, 2014 at 12:53 PM, BABITHA REDDY <span dir="ltr"><<a href="mailto:reddybabitha@gmail.com" target="_blank">reddybabitha@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr">Hi All,<div><br></div><div>After converting a shape file(point) into raster using GRASS7, it is not displaying the converted raster map. When i query the raster map it is displaying the value as 0, even though there are values.</div><div><br></div><div>Please help how to solve this problem</div><div><br></div><div>Thanks</div></div>
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