<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>You mean the HEIGHT_OFFSET parameter in the RPC ? Yes, that can
generally be used as a first-order correction if you don't use a
DEM. I'm not sure using it vs not-using it has been a deliberate
choice. One could say that with the current behavior people know
that something is wrong and must thus set something additional.
There was a related discussion in
<a class="moz-txt-link-freetext" href="https://github.com/qgis/QGIS/pull/36385">https://github.com/qgis/QGIS/pull/36385</a>. A non breaking change
would be to make -to RPC_HEIGHT=HEIGHT_OFFSET work</p>
<div class="moz-cite-prefix">Le 19/05/2021 à 11:54, Denis Rykov a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAJbvKNoNgBbESYswAMvASuQgTEzoxzya3h8_Rd1r0ExtsT5LzA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Finally I solved the issue by adding "-to
RPC_HEIGHT=XXX" to gdalwarp.<br>
It seems gdalwarp doesn't take this parameter into account even
if it is presented in the RPC *.txt file.
<div>Should I file the ticket or was it done by purpose?</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, May 18, 2021 at 11:26
PM Denis Rykov <<a href="mailto:rykovd@gmail.com"
moz-do-not-send="true">rykovd@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Thanks!</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, May 18, 2021 at
10:57 PM Even Rouault <<a
href="mailto:even.rouault@spatialys.com" target="_blank"
moz-do-not-send="true">even.rouault@spatialys.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Denis,</p>
<p>if the view angle is off-nadir, you generally need to
use the -to RPC_DEM= option with a DEM covering the
area of interest (and make sure the values it contains
are WGS 84 ellipsoidal elevations) to get accurate
results.</p>
<p>Even<br>
</p>
<div>Le 18/05/2021 à 22:50, Denis Rykov a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi,
<div><br>
</div>
<div>I have a GeoTIF file and file with RPC
information next to it (*.txt). Is there a way to
transform this raster to a normal geotiff without
displacement (with geotransform inside) or is it
fundamentally impossible?</div>
<div>I've tried to achieve it with gdalwarp but in
this case the result of the transformation has
about 5 meters (10 pixels) x-displacement (I use
QGIS to visualize it).</div>
<div><br>
</div>
<div>Denis</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
gdal-dev mailing list
<a href="mailto:gdal-dev@lists.osgeo.org" target="_blank" moz-do-not-send="true">gdal-dev@lists.osgeo.org</a>
<a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a>
</pre>
</blockquote>
<pre cols="72">--
<a href="http://www.spatialys.com" target="_blank" moz-do-not-send="true">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
</body>
</html>