[gdal-dev] RPC and DEM = Too many points (441 out of 441) failed to transform

[Goo Creations]

Hi,

I've tried that, but without any success. I have no problem warping the
image, that works fine. The problem comes in when I try to warp with the
DEM.

Chris



On Fri, Jul 8, 2011 at 1:12 PM, Chaitanya kumar CH
<chaitanya.ch at gmail.com>wrote:

> Chris,
>
> This could happen when you try to transform an image that is outside the
> defined area of the destination projection.
> Cut the raster to the destination projection's extents and try again.
>
> There is a thread with exactly the same error message in the archives[1]. I
> am not sure that it can help with your case, but try it anyway.
>
> http://lists.osgeo.org/pipermail/gdal-dev/2010-June/024846.html
>
> On Fri, Jul 8, 2011 at 1:08 PM, Goo Creations <goocreations at gmail.com>wrote:
>
>> Hi,
>>
>> I've seen that there are quite a lot of messages on this problem, but none
>> of them helped. When running the following command:
>>
>>           gdalwarp -rpc raw.tif out.tif
>>
>> with a raw.tif and raw.rpb file, the image "orthorectifies" correctly. The
>> moment I run:
>>
>>           gdalwarp -rpc -to RPC_DEM=dem.tif raw.tif out.tif
>>
>> I get the following error:
>>
>>           ERROR 1: Too many points (441 out of 441) failed to transform,
>> unable to compute output bounds.
>>
>> I've attached the info of raw.tif. Does anyone know what went wrong, and
>> is this beacuse of DEM, or is it another problem?
>>
>> Thanks
>> Chris
>>
>>
>>
>>
>>
>>
>>
>> Driver: GTiff/GeoTIFF
>> Files: raw.tif
>>        raw.rpb
>> Size is 9628, 8447
>> Coordinate System is:
>> GEOGCS["WGS 84",
>>     DATUM["WGS_1984",
>>         SPHEROID["WGS 84",6378137,298.257223563,
>>             AUTHORITY["EPSG","7030"]],
>>         AUTHORITY["EPSG","6326"]],
>>     PRIMEM["Greenwich",0],
>>     UNIT["degree",0.0174532925199433],
>>     AUTHORITY["EPSG","4326"]]
>> Origin = (30.913295622484902,-24.802523524387549)
>> Pixel Size = (0.000067480021901,-0.000067480021901)
>> Metadata:
>>   AREA_OR_POINT=Area
>> Image Structure Metadata:
>>   INTERLEAVE=PIXEL
>> RPC Metadata:
>>   LINE_OFF=4080
>>   SAMP_OFF=4576.5
>>   LAT_OFF=-25.0395787325761
>>   LONG_OFF=31.1554993454694
>>   HEIGHT_OFF=0
>>   LINE_SCALE=3914.5
>>   SAMP_SCALE=4294
>>   LAT_SCALE=1
>>   LONG_SCALE=1
>>   HEIGHT_SCALE=4.5035996273705e+15
>>   LINE_NUM_COEFF=-0.145866801707571 -1.10329711280747 -3.86239597262447
>> +2.58933660668099e-10 -28.872773220706 +2.68554381444917e-11
>> +2.66066678274063e-13 +0.233414015098293 -1.76613654297724
>> +6.43648576886715e-14 +1.49832649397565e-14 -0.206809394779316
>> +0.550008018810227 +5.15954998919738e-15 +4.01585276272362 +5.22420802294871
>> -1.73715368640512e-16 +1.01499936423132e-19 -3.38302233536952e-25 +0
>>   LINE_DEN_COEFF=+1 +7.63015898979327 +0.544533603046993 +0
>> -0.173000384439342 +0 +0 -1.00151575139611 -1.37010848384519 +0 +0
>> -0.202476730291588 +0.437634611086632 +0 -0.87007813002919
>> -0.375773326407855 +0 +0 +0 +0
>>   SAMP_NUM_COEFF=-0.231718719424942 +1.76982471507257 -0.14795750431688
>> -4.73119373784374e-10 +2.13811836283462 -3.85268609241549e-12
>> -2.35309943560894e-12 +25.3990915415468 +0.254311877067769
>> -2.89679792247779e-14 -8.37241260945736e-14 -2.08642871782854
>> -2.73075356366074 -3.49988405044981e-16 +0.172374026544827
>> -0.0126270588964211 -1.11561975938353e-16 +1.4727767628272e-19
>> +5.24269370859074e-25 +0
>>   SAMP_DEN_COEFF=+1 +7.29237513919745 +0.620858828859381 +0
>> +0.081413241118419 +0 +0 -0.640261879817039 -0.844565609956026 +0 +0
>> +0.357196796854916 +0.0314112080522133 +0 +0.0594674065444518
>> +0.355916093810033 +0 +0 +0 +0
>> Corner Coordinates:
>> Upper Left  (  30.9132956, -24.8025235) ( 30d54'47.86"E, 24d48' 9.08"S)
>> Lower Left  (  30.9132956, -25.3725273) ( 30d54'47.86"E, 25d22'21.10"S)
>> Upper Right (  31.5629933, -24.8025235) ( 31d33'46.78"E, 24d48' 9.08"S)
>> Lower Right (  31.5629933, -25.3725273) ( 31d33'46.78"E, 25d22'21.10"S)
>> Center      (  31.2381444, -25.0875254) ( 31d14'17.32"E, 25d 5'15.09"S)
>> Band 1 Block=9628x1 Type=UInt16, ColorInterp=Gray
>> Band 2 Block=9628x1 Type=UInt16, ColorInterp=Undefined
>> Band 3 Block=9628x1 Type=UInt16, ColorInterp=Undefined
>>
>>
>> _______________________________________________
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>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
> +91-9494447584
> 17.2416N 80.1426E
>
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