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<div class="moz-cite-prefix">Le 12/04/2023 à 20:57, Javier Jimenez
Shaw a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CADRrdKtp=g=QXwpTSQsx20Yzn0S4LZoovyj3452ZmsXvTaEuZg@mail.gmail.com">
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<div dir="ltr">
<div>Thanks Even for the quick fix.<br>
</div>
<div><br>
</div>
<div>Is there a way in C++ to set the option to "NO" or "YES"?</div>
<div>I saw that I can use proj.ini file and a environment
variable, that overwrites the value in proj.ini. So if a user
of my application plays with the environment variables, they
can change the behaviour (already happened with PROJ_LIB some
time ago)<br>
</div>
<div>I would like to set the behaviour directly in the C++ code.
Is that possible?</div>
</div>
</blockquote>
<p>You can specify ONLY_BEST=YES/NO in the options argument of
proj_create_crs_to_crs[_from_pj](). This is what cs2cs does when
specifying the --only-best switch</p>
<p>Even<br>
</p>
<br>
<blockquote type="cite"
cite="mid:CADRrdKtp=g=QXwpTSQsx20Yzn0S4LZoovyj3452ZmsXvTaEuZg@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>Thanks<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 12 Apr 2023 at 19:24,
Even Rouault <<a href="mailto:even.rouault@spatialys.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">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>Hi Javier,</p>
<p>Fixed per <a
href="https://github.com/OSGeo/PROJ/pull/3707"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://github.com/OSGeo/PROJ/pull/3707</a></p>
<p>doh, I hadn't anticipated that the only_best
functionality would introduce such complexity. The
fundamental issue is that the pipeline computation engine
has subtle behavioral differences depending if you ask it
to assume that all registered grids are available (which
is used to get the "universe of possible", from which we
can see if we are missing the "best" transformation),
which corresponds projinfo --grid-check known_available
mode, or if you ask it to discard early transformations
using grid not available. In the former case, PROJ may
sometimes not need to synthetize the ballkpark
transformation when it sees that the extent of the grids
cover the extent of the CRS. So in the warn-only mode of
only_best we must actually hybrid the 2 strategies to
discover both missing best transformation, and get a
ballpark transformation. Not sure if the above makes
sense...</p>
<p>Even<br>
</p>
<div>Le 12/04/2023 à 16:46, Javier Jimenez Shaw a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi</div>
<div><br>
</div>
<div>I am trying to migrate an application from PROJ
9.1.0 to PROJ 9.2.0, and I found a change in
behaviour, that I was not expecting in this release:</div>
<div>Transform a coordinate not having the proper geoid
file (the Spanish one in this test). I was expecting
that the z component is not changed. But I am getting
an error instead, and "* * inf" value.</div>
<div>I know that ONLY_BEST is there, but I understood
that the default was to keep the same behaviour as
before, and show a warning asking for a "definition".</div>
<div>But that is not what I experience. See this command
lines:</div>
<div><br>
</div>
<div>
<div><span style="font-family:monospace">echo 39 -3 0
| PROJ_DEBUG=2 PROJ_NETWORK=OFF cs2cs
EPSG:4326+5773 EPSG:4326+5782<br>
pj_open_lib(proj.ini): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.ini)
- succeeded<br>
pj_open_lib(proj.db): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.db)
- succeeded<br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call
fopen(egm96_15.gtx) - failed<br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
pj_open_lib(es_2019m.asc): call
fopen(es_2019m.asc) - failed<br>
pj_open_lib(es_2019z.asc): call
fopen(es_2019z.asc) - failed<br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call
fopen(egm96_15.gtx) - failed<br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
Attempt to use coordinate operation Inverse of WGS
84 to EGM96 height (1) + ETRS89 to Alicante height
(1) using ETRS89 to WGS 84 (1) failed. Grid
es_ign_egm08-rednap.tif is not available. Consult
<a href="https://proj.org/resource_files.html"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://proj.org/resource_files.html</a>
for guidance. Grid us_nga_egm96_15.tif is not
available. Consult <a
href="https://proj.org/resource_files.html"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://proj.org/resource_files.html</a>
for guidance. This might become an error in a
future PROJ major release. Set the ONLY_BEST
option to YES or NO. This warning will no longer
be emitted (for the current transformation
instance).<br>
* * inf<br>
</span></div>
<div><span style="font-family:monospace"><br>
</span></div>
<div><span style="font-family:monospace"><br>
</span></div>
<div><span style="font-family:monospace">echo 39 -3 0
| PROJ_DEBUG=2 PROJ_ONLY_BEST_DEFAULT=NO
PROJ_NETWORK=OFF cs2cs EPSG:4326+5773
EPSG:4326+5782<br>
pj_open_lib(proj.ini): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.ini)
- succeeded<br>
pj_open_lib(proj.db): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.db)
- succeeded<br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call
fopen(egm96_15.gtx) - failed<br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
pj_open_lib(es_2019m.asc): call
fopen(es_2019m.asc) - failed<br>
pj_open_lib(es_2019z.asc): call
fopen(es_2019z.asc) - failed<br>
39.00 -3.00 0.00</span></div>
<div><span style="font-family:monospace"><br>
</span></div>
<div><span style="font-family:monospace"><br>
</span></div>
</div>
<div><span style="font-family:monospace">echo 39 -3 0 |
PROJ_DEBUG=2 PROJ_NETWORK=ON cs2cs EPSG:4326+5773
EPSG:4326+5782<br>
pj_open_lib(proj.ini): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.ini)
- succeeded<br>
pj_open_lib(proj.db): call
fopen(/home/jshaw/work/PROJ/install-sh/share/proj/proj.db)
- succeeded<br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call fopen(egm96_15.gtx)
- failed<br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call fopen(egm96_15.gtx)
- failed<br>
Using <a
href="https://cdn.proj.org/us_nga_egm96_15.tif"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://cdn.proj.org/us_nga_egm96_15.tif</a><br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
pj_open_lib(es_2019m.asc): call fopen(es_2019m.asc)
- failed<br>
pj_open_lib(es_2019z.asc): call fopen(es_2019z.asc)
- failed<br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
Using <a
href="https://cdn.proj.org/es_ign_egm08-rednap.tif"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://cdn.proj.org/es_ign_egm08-rednap.tif</a><br>
pj_open_lib(us_nga_egm96_15.tif): call
fopen(us_nga_egm96_15.tif) - failed<br>
pj_open_lib(egm96_15.gtx): call fopen(egm96_15.gtx)
- failed<br>
Using <a
href="https://cdn.proj.org/us_nga_egm96_15.tif"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://cdn.proj.org/us_nga_egm96_15.tif</a><br>
pj_open_lib(es_ign_egm08-rednap.tif): call
fopen(es_ign_egm08-rednap.tif) - failed<br>
Using <a
href="https://cdn.proj.org/es_ign_egm08-rednap.tif"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://cdn.proj.org/es_ign_egm08-rednap.tif</a><br>
39.00 -3.00 0.30</span><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>The behaviour in 9.1.0 was the same as with "<span
style="font-family:monospace">PROJ_ONLY_BEST_DEFAULT=NO"</span><font
face="arial,sans-serif">, that is what I was
expecting now (plus warning message).</font></div>
<div><font face="arial,sans-serif"><br>
</font></div>
<div><font face="arial,sans-serif">Am I missing
something? Is this a bug?</font></div>
<div><font face="arial,sans-serif"><br>
</font></div>
<div><font face="arial,sans-serif">Thanks.<br>
</font></div>
<div><br>
</div>
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<div>.___ ._ ..._ .. . ._. .___ .. __ . _. .
__.. ... .... ._ .__</div>
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</div>
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My software is free, but my time generally not.</pre>
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<pre class="moz-signature" cols="72">--
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My software is free, but my time generally not.</pre>
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