Re: [gdal-dev] Creating Raster using Spatial Coordinates (Latitude and Longitude)

2013-01-17 Thread Chaitanya kumar CH
Dheeraj,

OGR's CSV driver[1] can read your vector data.
You have to decide how to represent your data in a raster. Interpolate
missing areas, set nodata pixels or something else.

Have a look at the gdal_rasterize utility[2].

[1]: http://www.gdal.org/ogr/drv_csv.html
[2]: http://www.gdal.org/gdal_rasterize.html


On Thu, Jan 17, 2013 at 5:56 AM, Dheeraj Reddy Mamidi 
drmam...@rothwellgroup.com wrote:

 I am using C# Gdal library.


 On Wed, Jan 16, 2013 at 5:25 PM, Dheeraj Reddy Mamidi 
 drmam...@rothwellgroup.com wrote:

 Hi,

 I am trying to create a Raster using grid of points(with latitude and
 longitude values) within an area which are separated at a distance measured
 in degrees. At higher latitudes the number of samples reduce that is number
 of points for a row reduces.

 When distance between points is determined with a fixed degree, how do I
 create a raster where the number of columns for higher latitudes reduces ?
 In this case, points for grid at higher latitudes are not exactly above the
 points at lower latitudes. Can some one suggest a way to create raster for
 spatial coordinates in this case?

 Thanks,
 Dheeraj





 --
 Dheeraj Reddy Mamidi

 Software Developer
 The Rothwell Group, L.P.
 Email: drmam...@rothwellgroup.com atvaug...@rothwellgroup.com
 Phone: 713-952-5355 ext.30
 Web: www.rothwellgroup.com

 ___
 gdal-dev mailing list
 gdal-dev@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/gdal-dev




-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E
___
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev

[gdal-dev] Creating Raster using Spatial Coordinates (Latitude and Longitude)

2013-01-16 Thread Dheeraj Reddy Mamidi
Hi,

I am trying to create a Raster using grid of points(with latitude and
longitude values) within an area which are separated at a distance measured
in degrees. At higher latitudes the number of samples reduce that is number
of points for a row reduces.

When distance between points is determined with a fixed degree, how do I
create a raster where the number of columns for higher latitudes reduces ?
In this case, points for grid at higher latitudes are not exactly above the
points at lower latitudes. Can some one suggest a way to create raster for
spatial coordinates in this case?

Thanks,
Dheeraj
___
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev

Re: [gdal-dev] Creating Raster using Spatial Coordinates (Latitude and Longitude)

2013-01-16 Thread Dheeraj Reddy Mamidi
I am using C# Gdal library.

On Wed, Jan 16, 2013 at 5:25 PM, Dheeraj Reddy Mamidi 
drmam...@rothwellgroup.com wrote:

 Hi,

 I am trying to create a Raster using grid of points(with latitude and
 longitude values) within an area which are separated at a distance measured
 in degrees. At higher latitudes the number of samples reduce that is number
 of points for a row reduces.

 When distance between points is determined with a fixed degree, how do I
 create a raster where the number of columns for higher latitudes reduces ?
 In this case, points for grid at higher latitudes are not exactly above the
 points at lower latitudes. Can some one suggest a way to create raster for
 spatial coordinates in this case?

 Thanks,
 Dheeraj





-- 
Dheeraj Reddy Mamidi

Software Developer
The Rothwell Group, L.P.
Email: drmam...@rothwellgroup.com atvaug...@rothwellgroup.com
Phone: 713-952-5355 ext.30
Web: www.rothwellgroup.com
___
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev