<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yiv4903677330"><div id="yui_3_16_0_ym19_1_1488909497349_293367"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1488909497349_293366"><div id="yiv4903677330"><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_281954"><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_281953" style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_279652"><span>Hi,</span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_279675"><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_281986"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_281967">thanks for your reply. I found a couple of GRASS utilities that do interpolation in the processes toolbox. I tried to run one of these but receive a message saying that GRASS in not correcly installed<br clear="none"></span></div></div><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_279552"> </div><div class="yiv4903677330signature" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_279551">=============================================== <br clear="none">PermaCultura-es http://www.permacultura-es.org</div> <div class="yiv4903677330qtdSeparateBR" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_281966"><br clear="none"><br clear="none"></div><div class="yiv4903677330yqt3881082359" id="yiv4903677330yqt88975"></div></div></div></div><div class="yiv4903677330yqt2215382479" id="yiv4903677330yqt73577"><div id="yui_3_16_0_ym19_1_1488909497349_293379"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1488909497349_293378"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1488909497349_293377"> <div dir="ltr" id="yui_3_16_0_ym19_1_1488909497349_293376"><font id="yui_3_16_0_ym19_1_1488909497349_293375" size="2" face="Arial"> Il Mercoledì 8 Marzo 2017 11:36, Bernd Vogelgesang <bernd.vogelgesang@gmx.de> ha scritto:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv4903677330y_msg_container" id="yui_3_16_0_ym19_1_1488909497349_293382"><div id="yiv4903677330"><style type="text/css">#yiv4903677330 body {font-size:12px;}</style><div id="yui_3_16_0_ym19_1_1488909497349_293381"><div id="yui_3_16_0_ym19_1_1488909497349_293380">Hi,</div><div>from my experiences longer ago, the interpolation plugin is not really easy to use and seems not to be maintained/enhanced for a long time.</div><div><br clear="none"></div><div>Maybe you can find a substitute for your interpolation tasks in the Processing toolbox?</div><div><br clear="none"></div><div>Cheers</div><div>Bernd</div><div><br clear="none"></div><div>Am 08.03.2017, 00:23 Uhr, schrieb antonio scotti <kiaikidobcn@yahoo.com>:<br clear="none"></div><br clear="none"><div class="yiv4903677330yqt3195991659" id="yiv4903677330yqt68680"><blockquote style="margin:0 0 0.80ex;border-left:#0000FF 2px solid;padding-left:1ex;"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_57913"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_59490">Hi all, I am new to this forum and to QGIS<br clear="none"></span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_59471"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145856">I am trying to construct a DEM </span><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145862">from contour lines by using </span><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145863">QGIS 2.14.0.</span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_148839"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145863">I am doing this by using a clip rectangle on top of the contour lines and interpolating, by using the interpolation plugin</span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_155016"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145863"><br clear="none"></span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_155021"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145863">After I enter the data in the interpolation dialog and clic Save I get an exception (se attached file). <br clear="none"></span></div><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_178085"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_145863">Any help appreciated<br clear="none"></span></div><br clear="none"><div dir="ltr" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_136327"><span id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_59483">Best regards</span></div><div id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_59484"> </div><div class="yiv4903677330signature" id="yiv4903677330yui_3_16_0_ym19_1_1488909497349_59485">=============================================== <br clear="none">PermaCultura-es http://www.permacultura-es.org</div></div></blockquote></div><br clear="none"><br clear="none"><br clear="none"><div id="yiv4903677330M2Signature"><div>-- </div><div>Bernd Vogelgesang<br clear="none">Siedlerstraße 2<br clear="none">91083 Baiersdorf/Igelsdorf<br clear="none">Tel: 09133-825374</div></div></div></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></div></div></div></body></html>