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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi,
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<div>I'm struggling computing the scale factor and the meridian convergence from a PJ object. I'm working with the C++ API, but even with the executable proj, it doesn't seem to work properly:</div>
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<div><span id="spnR" _e_oncontextmenu="onRwCm(event);" _e_ondblclick="onDblClkReadRcp(event);" _e_onclick="onClkRcp(event);" class="rwRRO" _ao="3" _rf="0" _rt="SMTP" _em="proj@lists.osgeo.org" title="proj@lists.osgeo.org" _sa="proj@lists.osgeo.org" _dn="proj@lists.osgeo.org" style="color: rgb(64, 140, 217); white-space: nowrap; cursor: pointer; font-family: "Segoe UI", Helvetica, Arial, sans-serif; font-size: 11px;"></span>
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<span style="font-variant-ligatures: no-common-ligatures">echo 600000 2200000 | proj +init=IGNF:LAMBE -SV</span></p>
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<div><span style="font-variant-ligatures: no-common-ligatures">sends back </span></div>
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<span style="font-variant-ligatures: no-common-ligatures">#Lambert Conformal Conic</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">#<span class="Apple-tab-span" style="white-space:pre">
</span>Conic, Sph&Ell</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">#<span class="Apple-tab-span" style="white-space:pre">
</span>lat_1= and lat_2= or lat_0, k_0=</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># +init=IGNF:LAMBE +proj=lcc +lat_1=46.8 +lat_0=46.8 +lon_0=0 +k_0=0.99987742</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># +x_0=600000 +y_0=2200000 +ellps=clrk80ign +pm=paris +units=m +no_defs</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">#--- following specified but NOT used</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># +type=crs</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">#Final Earth figure: ellipsoid</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># Major axis (a): 6378249.200</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># 1/flattening: 293.466021</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"># squared eccentricity: 0.006803487646</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">Rel. 7.0.0, March 1st, 2020</span></p>
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<span style="font-variant-ligatures: no-common-ligatures"><proj>: while processing file: <stdin>, line 1</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">latitude or longitude exceeded limits</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">What's wrong? Bug in the code or misunderstanding from me.</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">Thanks a lot,</span></p>
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<span style="font-variant-ligatures: no-common-ligatures">Nicolas Bellaiche</span></p>
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