Cassanova, Bill wrote:
I had considered that but was a little concerned about accuracy. So for
example:
Original lat-lon point --> -77.78, 36.01
Extracted i-j --> 1015.63, 404.964
The 4 closest are the ceil/floor of both so:
1015 and 1016 for X and 404 and 405 for Y.
However, the r
al-dev] General Questions about gdal usage with Grib1
Data Set
Cassanova, Bill wrote:
> There is now an additional wrinkle to the project. We need to now
> extract the 4 closest values for a given lat-lon point
> to complete a bilinear interpolation for added accuracy.
>
> Would the corre
Cassanova, Bill wrote:
There is now an additional wrinkle to the project. We need to now
extract the 4 closest values for a given lat-lon point
to complete a bilinear interpolation for added accuracy.
Would the correct method be:
(1) Use the suggestion that Frank made below about a hybrid app
3:52 PM
To: Cassanova, Bill
Cc: gdal-dev@lists.osgeo.org
Subject: Re: [gdal-dev] General Questions about gdal usage with Grib1
Data Set
Cassanova, Bill wrote:
> Hi,
>
> I am new to GDal and just beginning to dig into the intricacies of the
> library and would like some guidance on the best
Cassanova, Bill wrote:
Thank you for your help.
Couple more questions:
(1)
After the call to GDALGenImgProjTransform( ..., ..., ..., double *x,
double *y, ..., ... );
I am assuming that the x and y arguments contain the new lat-lon values
from the new projection and does not contain the dat
, July 20, 2009 3:52 PM
To: Cassanova, Bill
Cc: gdal-dev@lists.osgeo.org
Subject: Re: [gdal-dev] General Questions about gdal usage with Grib1
Data Set
Cassanova, Bill wrote:
> Hi,
>
> I am new to GDal and just beginning to dig into the intricacies of the
> library and would like some
Cassanova, Bill wrote:
Hi,
I am new to GDal and just beginning to dig into the intricacies of the
library and would like some guidance on the best way to proceed.
I have a data set that is in a grib1 format but with a Lambert Conformal
Projection. If need be this file can be converted to ei
Hi,
I am new to GDal and just beginning to dig into the intricacies of the
library and would like some guidance on the best way to proceed.
I have a data set that is in a grib1 format but with a Lambert Conformal
Projection. If need be this file can be converted to either grib2 or
shape file usi
