<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Thanks Ivan. I do not have too many vectors with more points. Most of the polygons are parcel data. I find the QGIS renderer to be slower and was wondering if it is possible to tweak it.<br><br>Thank you,<br><br>Maaza <br><br>--- On <b>Wed, 10/6/10, Ivan Mincik <i><ivan.mincik@gmail.com></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Ivan Mincik <ivan.mincik@gmail.com><br>Subject: Re: [Qgis-developer] Windows refresh rates are slow<br>To: "maaza mekuria" <sailmcm@yahoo.com><br>Cc: qgis-developer@lists.osgeo.org<br>Date: Wednesday, October 6, 2010, 3:02 PM<br><br><div id="yiv1268250771"><br><br><div class="yiv1268250771gmail_quote">On Wed, Oct 6, 2010 at 8:52 PM, maaza mekuria <span dir="ltr"><<a rel="nofollow" ymailto="mailto:sailmcm@yahoo.com" target="_blank"
href="/mc/compose?to=sailmcm@yahoo.com">sailmcm@yahoo.com</a>></span> wrote:<br><blockquote class="yiv1268250771gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font: inherit;" valign="top">Thanks Giovanni for the response. It is entirely vector and I find that the redraws to be very slow. <br><br>I made the suggested changes on using render caching and I do not see that much performance gain.<br>
<br>Is there anything else to do to help the refresh speed?<br><br></td></tr></tbody></table><br></blockquote><div> </div><div>By my experience, slow rendering is case when Your layer is containing some very big object (few hundred of vertexes each - for example long contour lines generated by Grass). <br>
<br>Ivan<br></div></div><br>
</div></blockquote></td></tr></table><br>