<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><span style="font-size: 12pt;">Hi all,</span><br></div><div data-marker="__QUOTED_TEXT__"><div style="font-family:'arial' , 'helvetica' , sans-serif;font-size:12pt;color:#000000"><div><br><br>I am still puzzled by the difference between the old syntax +init= and the new syntax. I just rebuilt the last release 9.2.1 and tested with it to make sure it's not a bug already fixed.<br><br><span style="text-decoration:underline">1) Example where the grid shift is not taken into account with the new syntax. (it's correct with +init=)</span><br><br>1.a) NEW SYNTAX: z not correct (grid shift not used)</div><div><br><span style="font-size:8pt"><strong> echo 600000.00000000 300097.53400000 0.00000000 | ./bin/cs2cs IGNF:LAMB1 +to IGNF:UTM31RGF93</strong></span><br><span style="font-size:8pt">452845.19 5583309.40 0.00</span><br></div><div><br><span style="color:#000000;font-family:'arial' , 'helvetica' , sans-serif;font-size:16px;font-style:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:#ffffff;text-decoration:none;display:inline !important;float:none">1.b) OLD SYNTAX: z correct:</span></div><div><br><span style="font-size:8pt"><strong>echo 600000.00000000 300097.53400000 0.00000000 | ./bin/cs2cs +init=IGNF:LAMB1 +to +init=IGNF:UTM31RGF93</strong></span><br><span style="font-size:8pt">452845.19 5583309.40 43.64</span><br><br><br><br><span style="text-decoration:underline">2) Example where the old syntax gives a wrong result while the new syntax works:</span></div><br><div>2.a) OLD SYNTAX from cartographic to geocentric coordinates / result is wrong</div><div><br><span style="font-size:8pt"><strong>echo 652760.737 7033791.243 43.642 | PROJ_DEBUG=3 ./bin/cs2cs +init=IGNF:LAMB93 +to +init=IGNF:RGF93</strong></span></div><div><span style="font-size:8pt;font-family:'times new roman' , 'new york' , 'times' , serif">4070355.05 166080.07 4891332.24</span></div><br><br><div><span style="color:#000000;font-family:'arial' , 'helvetica' , sans-serif;font-size:16px;font-style:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:#ffffff;text-decoration:none;display:inline !important;float:none">2.b) NEW SYNTAX from cartographic to geocentric coordinates / result is correct</span><br></div><div><span style="color:#000000;font-family:'arial' , 'helvetica' , sans-serif;font-size:16px;font-style:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:#ffffff;text-decoration:none;display:inline !important;float:none"><br data-mce-bogus="1"></span></div><div><p style="margin:0px;font-style:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'menlo';color:rgb( 0 , 0 , 0 )"><strong>echo 652760.737 7033791.243 43.642 | PROJ_DEBUG=3 ./bin/cs2cs IGNF:LAMB93 +to IGNF:RGF93<span class="Apple-converted-space"> </span></strong></p><p style="margin:0px;font-style:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'menlo';color:rgb( 0 , 0 , 0 )">4070327.25<span class="Apple-tab-span" style="white-space:pre"> </span>166078.93 4891298.61</p><p style="margin:0px;font-style:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'menlo';color:rgb( 0 , 0 , 0 )"><br></p><p style="margin:0px;font-style:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'menlo';color:rgb( 0 , 0 , 0 )"><br></p><p style="margin:0px;font-style:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'menlo';color:rgb( 0 , 0 , 0 )"><br></p></div></div><br></div></div></body></html>