<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Hi.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">

Well I am willing to give it a second try and now I wonder what I can<br>
do better. Increase resolution? Leave out some contour lines?<br>
<br></blockquote><div><br></div><div class="gmail_extra" style="font-family:arial,sans-serif;font-size:13px"><div class="gmail_quote"><div>To speed up the process to see if the results are desirable, you could increase the resolution and try the add-on r.surf.nnbathy.   Then decrease resolution if necessary and applicable.</div>
</div></div><div class="" style="font-family:arial,sans-serif;font-size:13px"><div id=":1cd" class="" tabindex="0"><img class="" src="https://mail.google.com/mail/u/0/images/cleardot.gif"></div></div><span class="" style="font-family:arial,sans-serif;font-size:13px"><font color="#888888"><div class="gmail_extra">
Mark</div></font></span></div></div></div>