Hola Lista:<br><br>Para GvSig 1.9 e 1.10, creemos haber un error en las
definiciones PROJ.4 de los CRS <b>EPSG 20790</b> [(Lisbon (Lisbon) /
Portuguese National Grid)] e <b>EPSG</b> <b>20791</b> [Lisbon (Lisbon) /
Portuguese Grid].<div class="im"><br>
<br><span style="font-size: 11pt; line-height: 115%;">EPSG 20790:<br>
proj4 String: +proj=tmerc +lat_0=39.666666666666664 +<span style="background: none repeat scroll 0% 0% red;">lon_0=10.131906111111112</span>
+k=1.0 +x_0=200000.0
+y_0=300000.0 +ellps=intl +<span style="background: none repeat scroll 0% 0% yellow;">pm=lisbon</span>
+units=m<br>
<br>
EPSG 20791:<br>
proj4 String: +proj=tmerc +lat_0=39.666666666666664 +<span style="background: none repeat scroll 0% 0% red;">lon_0=10.131906111111112</span>
+k=1.0 +x_0=0.0 +y_0=0.0
+ellps=intl +<span style="background: none repeat scroll 0% 0% yellow;">pm=lisbon</span>
+units=m<br>
<br>
</span></div>Así, para <span style="font-size: 11pt; line-height: 115%;"><span style="background: none repeat scroll 0% 0% yellow;">pm=lisbon<span><span style="background-color: rgb(255, 255, 255);"> , haberia que hacer </span></span></span></span><span style="font-size: 11pt; line-height: 115%; background: none repeat scroll 0% 0% olive; color: rgb(102, 255, 153);">lon_0=1</span><font color="#ffffff">,pues </font><br>
<br><br>Estos 2 sistemas son equivalentes a los CRS <b>ESRI</b> <b>102165</b>
[Lisboa_Hayford_Gauss_IPCC] e <b>ESRI 102164</b>
[Lisboa_Hayford_Gauss_IGeoE] que - estos sí - estan correctos:<div class="im"><br><br>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"><b>ESRI 102165</b> "Lisboa_Hayford_Gauss_IPCC
" <b>(<span style="color: black;">HGLx)</span></b></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"><span lang="EN-US">proj4 String:
+proj=tmerc +lat_0=39.666666666666664 +lon_0=<b><span style="background: none repeat scroll 0% 0% lime;">-8.131906111111114</span></b>
+k=1.0 +x_0=0.0 +y_0=0.0 +ellps=intl +units=m</span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"><span lang="EN-US"> </span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"><b>ESRI 102164</b> "
Lisboa_Hayford_Gauss_IGeoE" <b>(<span style="color: black;">HGLxM)</span></b></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"><span lang="EN-US">proj4 String:
+proj=tmerc +lat_0=39.666666666666664 +lon_0=<b><span style="background: none repeat scroll 0% 0% lime;">-8.131906111111114</span></b>
+k=1.0 +x_0=200000.0 +y_0=300000.0 +ellps=intl +units=m</span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; line-height: normal;"> </p></div>
Gracias<br>Dinis Fonseca<br>Pedro Monteiro<br clear="all"><br><p><img src="http://gama/exchange/pnpg.monteiropm/A%20receber/FW:%20Ano%20do%20morcego%20-%20assinaturas%20de%20correio%20electr%C3%B3nico.EML/ano%20do%20morcego-mail.jpg/C58EA28C-18C0-4a97-9AF2-036E93DDAFB3/ano%20do%20morcego-mail.jpg?attach=1" width="54" height="44"> <img src="http://gama/exchange/pnpg.monteiropm/A%20receber/FW:%20Escalarecimento%20logos%20email.EML/AIF-2011-mail.jpg/C58EA28C-18C0-4a97-9AF2-036E93DDAFB3/AIF-2011-mail.jpg?attach=1" width="278" height="43"> </p>
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<p> <br></p><p><br></p><br><br>