Le lundi 10 juin 2013 22:43:52, Baker, Anthony W a écrit :
> One possible answer seems to be to use ICHIP_OP_**_** and ICHIP_FI_**_**
>
> Using the _OP_ metadata I form a row-wise 2x2 projection matrix with _12 -
> _11 as one row and _21 - _11 as the other. With _FI_ I form a column-wise
> 2x2 p
Hi All,
I posted a few days ago about trying to find the transform for a NITF chip, for
instance to map from the chip pixel coordinates to geo coordinates. I was able
to come close in terms of my mapping but it does not seem to match with other
sources that are interpreting the data. Would so
Yes, after I sent it I relieved that I was wrong about the RPC. I did follow
up with what I think is a better way although I am not sure it works perfectly.
For example ArcMap's visualization does not line up with my points :-S Would
love to hear back what a better way would be.
Anthony
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Le lundi 10 juin 2013 18:13:47, Baker, Anthony W a écrit :
> I have a NITF file which I can read fine with GDAL. The issue that it is a
> chip and using the transformation to determine geolocations fails (for
> example finding the chip's four corners). Instead of placing a point
> based on the ch
double a1, a2;
a1 = -(m11*op11c + m12*op11r) + fi11c;
a2 = -(m21*op11c + m22*op11r) + fi11r;
ST[0] = a1;
ST[3] = a2;
ST[1] = m11;
ST[2] = m12;
ST[4] = m21;
ST[5] = m22;
From: gdal-dev-boun...@lists.osgeo.org
[mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Baker, Anthony W
Sent: Monda
I have a NITF file which I can read fine with GDAL. The issue that it is a
chip and using the transformation to determine geolocations fails (for example
finding the chip's four corners). Instead of placing a point based on the
chip, it places it based on the whole image. I can read the metad
