On Tue, Feb 22, 2011 at 09:19:45AM +0100, J C Gonzalez wrote: > Hi. > > I'm trying to use PLPlot to generate some world maps. I *must* > generate a JPEG file, but the jpeg device for the PLPlot version > installed in my system produces ugly results. I thought of using > device pngcairo (since png device looks also not good enough), > and then convert the resulting png file to jpeg. The problem I'm > facing is that I get a sort of fine grid in the image that I > plot. > > It would be easier to understand if I say that I get the same > effect using device pngcairo with example 16 (shading). The > shade plot generated in this example shows a grid plotted over > the shading surface, that is not shown in jpeg/png/win/ps > devices. It seems to be an artifact related to the cairo family > of devices. > > Does anybody know how to remove this grid?
Is it a greyish looking grid? I have seen a similar effect when using some of the Linux tools to convert between different image formats. I believe it is due to transparency issues. I have never seen it with the plplot cairo devices so, as Alan says, my first guess would be a problem with your version of cairo. You could also try a different image viewer to see if that makes a difference. What viewer are you using? Andrew ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
