[gdal-dev] Re: How to apply a costum shift grid?

2011-07-04 Thread frederick keusch
Hi Robert, thanks a lot for your advice. It is finally applied now with cs2cs. I also made a fast try with gdalwarp but here it was the same again like before, it wasn´t applied. But ok, I only did a fast try. So I hope tomorrow it will work finally, if i can find out the right command. Thanks

[gdal-dev] Re: disformed images in its positions

2011-06-30 Thread frederick keusch
Hi Chaitanya, after intenting a lot of things to solve the problem including shift grids for example, we came back to the method with gdal_translate and gdalwarp you described. And it does work more or less. I did give GCP`s to the corners of the images and also in the images. The problem is,

[gdal-dev] How to apply a costum shift grid?

2011-06-28 Thread frederick keusch
Hi, I am working here in Chile and we have a lot of earthquakes here, the last big one like a year ago. So the problem is that I have a lot of georeferenced images, but georeferenced before the earthquake. We thought the best way would be to calculate a shift grid and apply it with gdalwarp to

[gdal-dev] Re: disformed images in its positions

2011-06-15 Thread frederick keusch
Hi Chaitanya, first of all I'd like to thank you for the information. So if I understood you correctly, it is not necesseary to use the polynomial we calculated but only a dataset of the control points we used and gdal_transalate calculates a polynomial internally. Do you know how exactly this

[gdal-dev] Re: disformed images in its positions

2011-06-15 Thread frederick keusch
Hi Chaitanya, thanks again for your help. I tried to find some information about how to set the projection info after our method and also how and with which command apply the modified GCP's... hoping to find a solution soon. Thank you again, frederick -- View this message in context:

[gdal-dev] disformed images in its positions

2011-06-14 Thread frederick keusch
Hi, i would like to use gdalwarp to solve a problem we have. Like i am a very new user of gdal I don't know, if gdalwarp really can solve the problem, but I hope so. The problem that we have are a kind of disformed images in its positions. The images have several shifts in various directions. But