Re: [gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-15 Thread Even Rouault
> An excellent text, with well explained equations, for your purposes > may be "Map Projection Transformation: Principles and Applications" by Qihe > Yang, John P Snyder and Waldo R Tobler and published by Taylor & Francis in > 2000. Snyder's introductions to map projections are generally

Re: [gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-15 Thread Peter Halls
Jukka, Richard, firstly, ESRI contracted the late John P Snyder, from USGS, to design and initially implement their projection tools. The team now maintaining and developing this code has a highly respected pedigree. Whilst mistakes *do* happen, I think the ESRI code will most likely be r

Re: [gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-15 Thread Jukka Rahkonen
Bischof, Richard lgln.niedersachsen.de> writes: > > Hi Jukka, > > you're correct. ArcMap is doing the on-the-fly transformation with the dataset, I applied the gcps using > gdal_translate to. > With both gdal_warp and ArcMap Rectify I use second order polynomial. > > I also found, that some ar

Re: [gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-13 Thread Bischof, Richard
: +49 511 30245-360 mailto:richard.bisc...@lgln.niedersachsen.de www.lgln.de/rd-hm -Ursprüngliche Nachricht- Von: gdal-dev [mailto:gdal-dev-boun...@lists.osgeo.org] Im Auftrag von Jukka Rahkonen Gesendet: Dienstag, 12. April 2016 19:34 An: gdal-dev@lists.osgeo.org Betreff: Re: [gdal-dev] Rec

Re: [gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-12 Thread Jukka Rahkonen
Bischof, Richard lgln.niedersachsen.de> writes: > > Hello there, > > I`m trying to rectify a lots of dataset in tiff format using gdal. I'am using Windows 7 Professional, gdal > 1.11.2 . > > My steps / commands are: > ... SNIP ... > F:\Projekt\gross\106300.tif D:/temp.tif > > 2) Warp the im

[gdal-dev] Rectify TIFF: Difference between applied GCP and warped image

2016-04-12 Thread Bischof, Richard
Hello there, I`m trying to rectify a lots of dataset in tiff format using gdal. I'am using Windows 7 Professional, gdal 1.11.2 . My steps / commands are: 1) Apply the GCP's using gdal_translate gdal_translate -of GTiff -gcp 5734.32993305 4261.44895879 611521.018414 5787817.29357 -gcp 572.48513