search for: xdrawline

I have done a little bit of poking around at the bug that I reported earlier (steep slopes and lines from far outside the plot range doing funny things), and have tracked it down to the fact that, as noted in the Unix man page, XDrawLine[s] doesn't like coordinates that are outside of the range of (-32767,32767). Now the question is, what to do about this? A quick "fix" (not a fix but at least an acknowledgement of the problem) would check coordinates in GLine() and issue a warning instead of trying to draw anything...

Hi I have an application that uses the Xwindows graphics library. Things like XOpenDisplay XDrawLine XCreateSimpleWindow XDrawString and many more Under all the CENTOS 4.X systems these were automatically loaded. I dont have these loaded under my CENTOS 5 system. I get a heap of undefined references when I compile the code. Could someone tell me, point me, where these routines now reside on th...

The following commands illustrate a problem with graphing relatively large data sets using the "line" option to plot: temp <- runif(200000) # or whatever other numbers you like; # same thing happens with a sine wave plot(1:200000, temp) # everything fine plot(1:200000, temp, type="l") # data gets cut off The number of points isn't crucial. The cutoff point

...In-place conversion ok */ GConvert(&x1, &y1, coords, DEVICE, dd); GConvert(&x2, &y2, coords, DEVICE, dd); xx1 = (int) x1; yy1 = (int) y1; xx2 = (int) x2; yy2 = (int) y2; SetColor(dd->gp.col, dd); SetLinetype(dd->gp.lty, dd->gp.lwd, dd); XDrawLine(display, xd->window, xd->wgc, xx1, yy1, xx2, yy2); XSync(display, 0); } -- George White <aa056 at chebucto.ns.ca> tel: 902.426.8509 Bedford Inst. of Oceanography, Nova Scotia, Canada. On Thu, 11 Feb 1999, Albrecht Gebhardt wrote: > > On Thu, 11 Feb 1999, George White wr...

....a - lm ld: Unresolved: XLoadQueryFont XOpenDisplay XInternAtom XCreateFontCursor XCreateGC XCreateWindow XDefaultRootWindow XSetWMProtocols XAllocColor XAllocNamedColor XChangeProperty XCheckTypedEvent XClearWindow XCloseDisplay XDefaultDepth XDefaultScreen XDefineCursor XDestroyWindow XDrawArc XDrawLine XDrawLines XDrawRectangle XFillArc XFillPolygon XFillRectangle XFreeColors XFreeCursor XFreeGC XMapWindow XNextEvent XPending XSelectInput XSetClipRectangles XSetDashes XSetFont XSetLineAttributes XSetState XSetWindowBackground XSync XTextWidth XUnloadFont XFindContext XSaveContext XrmUniqueQuark X...

...plot, semi-random lines appear on the plot. plot(exp(1:100),ylim=c(0,10),type="l") Any thoughts? I poked a little bit at this myself: abline calls GLine, neither of them seems to do much checking whether the endpoints of the line to be drawn are way outside of the window (I guess that XDrawLine, which gets called by GLine, can't handle this). I guess this should probably be fixed at the the level of GLine (it might fix both of the above problems, but I'm a little bit afraid digging this deeply into the graphics drivers. Maybe it will be obvious to someone closer to the code? --...

plot(rnorm(100000),type="l") plots only about 7e4 lines while the same without type="l" works fine. Is this a feature or a bug or is this configurable? R : Copyright 2000, The R Development Core Team Version 1.1.1 (August 15, 2000) SunOS 5.5.1 Generic_103640-29 sun4u sparc SUNW,Ultra-1 Thanks Adrian -- Adrian Trapletti, Olsen & Associates Ltd., See- feldstrasse