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<div class="moz-cite-prefix">Hi,<br>
<br>
the parameter may ignored because the input tiff lack the RPC
coefficients. Does any of RPC coefficient exist? What is gdalinfo
output of you aerial photos?
<pre class="moz-signature" cols="72">Best regards,
Dmitry</pre>
18.03.2014 23:54, alain Sauter пишет:<br>
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<blockquote cite="mid:5328A489.9010701@univ-paris1.fr" type="cite">
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Hi all,<br>
<br>
I am trying to orthorectify a couple of aerial photos using
gdalwarp, but i am stuck with the <i>-to </i>transformer option.
I have seen in archive two request concerning this issue, but
without any answer for now... so hope this 3rd will have a reply
;)<br>
<br>
materials :<br>
scan of an old aerial photo, without fly info and, of course,
without projection, tif format<br>
Dem of the region, tif format<br>
<br>
what i've done :<br>
using qgis georeferencer to grab some GPC's on the aerial photo<br>
using gdal_translate to insert GPC's in the aerial photo<br>
<br>
what i've try :<br>
<br>
using gdalwarp to transform, rectify and project the aerial photo
with :<br>
<i>gdalwarp -to RPC_DEM=dem.tif -t_srs=EPSG:2154 input.tif
output.tif</i><br>
<br>
result:<br>
my file is transformed and projected but not rectified. Option <i>-to
RPC_DEM </i>is ignored by gdalwarp, even if I write wrong
option like <i>-to RP_D...<br>
<br>
</i>Am i doing something wrong ?<br>
<br>
thanks for reply<br>
<br>
Alain <br>
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