weixj,
You can get some free samples at http://www.webgis.com/terr_us1deg.html
On Wed, May 2, 2012 at 1:45 PM, weixj wrote:
> Thank you for your answer.
> I want to know that where I can get the free DEM data?
> I want a sample data,and test my program.
>
> Thank you.
>
>
>
> At 2012-05-02 12:5
weixj,
You can use the -projwin option of gdal_translate utility.
http://www.gdal.org/gdal_translate.html
2012/4/24 weixj
> I have a tiff file and four points' coordination(and they are in the range
> of the min and max value of the coordination of the tiff file,I want to
> generate a new tiff
I have a tiff file and four points' coordination(and they are in the range of
the min and max value of the coordination of the tiff file,I want to generate a
new tiff file,and the edge of it is constructed by the four points.
Thank you in advance.___
