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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'>Thanks for this answer Thomas, you confirm what I guessed also. Before considering this way, I had a look about attributes and didn't find how I could create raster texts layer, to display gid or other information. So I wonder if I should better not carrying on with Postgis for that but try another way...<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'>Olivier<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> postgis-users [mailto:postgis-users-bounces@lists.osgeo.org] <b>De la part de</b> Tumasgiu Rossini<br><b>Envoyé :</b> mercredi 22 février 2017 22:56<br><b>À :</b> PostGIS Users Discussion<br><b>Objet :</b> Re: [postgis-users] screen copy with postgis<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>Hi,<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US>I'm not sure there is a function that can burns geometries on an existing<o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>raster.<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US>So I guess you will need to create a raster for each "layer" you want to<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US>draw (e.g. the polygons, the boundaries...) and merge them into a<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US>final raster using st_mapalgebra.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div><p class=MsoNormal>2017-02-22 21:48 GMT+01:00 Olivier Leprêtre <<a href="mailto:o.lepretre@gmail.com" target="_blank">o.lepretre@gmail.com</a>>:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Hi,</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>I'm trying to do a "screen copy" from a set of polygons. So I thought that I could use St_AsRaster and St_AsJpeg as follow, with the selection of two poly.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>SELECT ST_AsJPEG(ST_AsRaster(st_collect((Select geom from poly where gid=605530),(Select geom from poly where gid=605533)),1000,1000, ARRAY['8BUI', '8BUI', '8BUI'], ARRAY[255,255,255], ARRAY[0,0,0],null,null,0,0,true))</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>I load the result in a C# app which is in charge to save it as a file. This "works" but I'm loosing the boundaries (tha't to say the red lines in the image below).</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=m6028859974753924749msolistparagraph><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>1)</span><span lang=EN-US style='font-size:7.0pt'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Is there a way to keep those boundaries ?</span><span lang=EN-US><o:p></o:p></span></p><p class=m6028859974753924749msolistparagraph><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>2)</span><span lang=EN-US style='font-size:7.0pt'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>As I have other layers, like texts, will it be possible to make them appear also, like a screen copy ?</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>In other words, more simply, am I on the right way or should I think to a completely different solution ?</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Thanks,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Olivier</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><img border=0 width=513 height=488 id="m_6028859974753924749Image_x0020_1" src="cid:image001.jpg@01D28DB2.F9256BC0" alt="cid:image001.jpg@01D28DB2.F9256BC0"></span><o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div class=MsoNormal align=center style='text-align:center'><hr size=1 width="99%" noshade style='color:#909090' align=center></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'><tr><td style='padding:0cm 11.25pt 0cm 6.0pt'><p class=MsoNormal><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><span style='text-decoration:none'><img border=0 width=32 height=32 id="_x0000_i1026" src="cid:image002.png@01D28DB3.0DF46AB0" alt="Avast logo"></span></a><o:p></o:p></p></td><td style='padding:.75pt .75pt .75pt .75pt'><p><span style='font-family:"Calibri","sans-serif";color:#3D4D5A'>L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. <br><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank">www.avast.com</a> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><span lang=EN-US><br>_______________________________________________<br>postgis-users mailing list<br></span><a href="mailto:postgis-users@lists.osgeo.org"><span lang=EN-US>postgis-users@lists.osgeo.org</span></a><span lang=EN-US><br></span><a href="https://lists.osgeo.org/mailman/listinfo/postgis-users" target="_blank"><span lang=EN-US>https://lists.osgeo.org/mailman/listinfo/postgis-users</span></a><span lang=EN-US><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div>
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L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
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