Hello, I am using plplot to produce some "shade" plots and have encountered some problems. I am running an out-of-the-box version of plplot 5.9.0 installed via darwinports under Mac OS. I'm interacting with plplot via the C library bindings.
I would like to produce contour plots in which the contours are filled with a solid colour. Although the documentation implies that this is not possible, I gather from reading the examples that it is achieved by calling plpsty(0). Unfortunately, subsequent calls to plshades produce weirdly segmented images, in which the solid fill is broken up with unwanted lines, like this: http://www.damtp.cam.ac.uk/user/djs61/figures.pdf (This plot was produced by allowing plshades to consolidate rectangular fills - disabling this option produces an image formed by tiny areas of solid fill bordered by white lines. The plot comes from the pdfcairo device, but the same output is produced by any driver. By zooming in on the image, it's possible to see that the black lines which mark the contours are afflicted by a similar unwanted patterning with white lines.) I have checked that the same effect is present if I compile the supplied examples which use plshades. To check that it's not just an issue with the version of plplot I have installed, I have checked that I get identical results running the out-of-the-box packaging of plplot available in Ubuntu, currently version 5.8.0. Has anyone encountered this problem before, or could anyone suggest what might be the case? Thanks very much in advance for your help, Best wishes David ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Plplot-general mailing list Plplot-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-general
