search for: angles

I am trying to use the angle option in polygon to create polygons filled with horizontal and vertical lines. The polygons I am crating are irregular and it the angle function appears to set the angle of the shading perpendicular to the polygon sides rather than perpendicular to the axes. Is there any way to set the angle relative to the axes rather than relative to the polygon sides?

Hello forum! As the subject indicates, I am trying to make a barplot and would like my column names to be in bold. Is this possible in R without having to make my column names in mtext? Any help would be much appreciated. The code I am using is as follows. par(mar=c(3,8,2,2)) par(adj=.5) par(font=2) par(oma=c(3,3,3,3)) par(xpd=TRUE) Blot<-matrix(c(25.2995, 0.7625, 25.6135, 36.5770,

...emp.loc.1, temp.loc.2), ncol = 2) } else { if (!is.matrix(locations) || ncol(locations) != 2) stop("locations must be a 2-column matrix.") loc <- .Alias(locations) } if (n.loc != nrow(loc)) stop("number of rows of locations and x must be equal.") angles <- if (full) seq(0, 2 * pi, length = n.seg + 1)[-(n.seg + 1)] else if (draw.segments) seq(0, pi, length = n.seg + 1)[-(n.seg + 1)] else seq(0, pi, length = n.seg) if (length(angles) != n.seg) stop("length(angles) must be the same as ncol(x)") x[is.na(x)] <- 0...

...tter: I would like to use a command like this: plot(c(1,8), 1:2, type="n") polygon(1:7, c(2,1,2,NA,2,1,2), col=c("red", "blue"), # border=c("green", "yellow"), border=c(1,10), lwd=c(1:10)) To create two triangles, with different line widths. But the polygon command doesn't seem to recycle the "lwd" parameter as it does for the col, lty, and the border parameters. I would like the resulting plot to look like what the following code will produce: plot(c(1,8), 1:2, type="n") polygon...

...tter: I would like to use a command like this: plot(c(1,8), 1:2, type="n") polygon(1:7, c(2,1,2,NA,2,1,2), col=c("red", "blue"), # border=c("green", "yellow"), border=c(1,10), lwd=c(1:10)) To create two triangles, with different line widths. But the polygon command doesn't seem to recycle the "lwd" parameter as it does for the col, lty, and the border parameters. I would like the resulting plot to look like what the following code will produce: plot(c(1,8), 1:2, type="n") polygon...

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Dear all, I'd like to produce a simple pie chart for a customer (I know it's bad but they insist), and I have some difficulties setting the initial angle. For example: pie(c(60, 40), init.angle=14) and pie(c(80, 20), init.angle=338) both present the slices in the same direction, where: pie(c(60, 40)) pie(c(80, 20)) present the slices in different directions. I read everything I

The angle is not based on the polygon edges, but it can seem that way if you do not use the asp=1 argument in your plot. Try this example, > plot(1:10, 1:10, type='n') > x <- c(1, 3, 5, 3) > y <- c(3, 5, 3, 1) > polygon(x, y, angle=0, density=10) > polygon(x, y + 4.5, angle=45, density=10) > polygon(x + 4.5, y + 4.5, angle=90, density=10) > polygon(x + 4.5, y,

Tena koe Simon plot(1:10, 1:10, type='n') polygon(c(2,3,6,8), c(2,5,5,3), density=20, angle=90) polygon(c(2,3,6,8), 5+c(2,5,5,3), density=20, angle=0) I don't understand your problem. Perhaps if you "provide[d] commented, minimal, self-contained, reproducible code" it would help. HTH .... Peter Alspach -----Original Message----- From: R-help [mailto:r-help-bounces at

...(x, y, radius, nv = 100, border = NULL, col = NA, lty = 1, > density=NA, angle=45, lwd = 1 ) > { > xylim <- par("usr") > plotdim <- par("pin") > ymult <- getYmult() > angle.inc <- 2 * pi/nv > angles <- seq(0, 2 * pi - angle.inc, by = angle.inc) > if (length(col) < length(radius)) > col <- rep(col, length.out = length(radius)) > for (circle in 1:length(radius)) { > xv <- cos(angles) * radius[circle] + x > yv <- sin(angles) * rad...

I am having a problem creating a scatterplot with error bars using gplot. This is only my second day using R so I am very much a newbie. My x-values (OD600) are: 0.00400000 0.01866667 0.04733333 0.08733333 0.22466667 0.42400000 0.82066667 1.39233333 1.61100000 My y-values (cellconc) are: 2e+06 5e+06 1e+07 2e+07 5e+07 1e+08 2e+08 5e+08 1e+09 And my standard deviations (stdev) are: 0.001154701

Thanks, I?aki, for your answer. Yes, I do have a GPU: NVIDIA GeForce GTX 1650/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 560.35.03 And no progress: $ rstudio GSK_RENDERER=ngl [18088:1103/205442.538796:ERROR:gl_factory.cc(120)] Requested GL implementation (gl=none,angle=none) not found in allowed implementations: [(gl=egl-angle,angle=default),(gl=egl-gles2,angle=none)].

Thanks, but unfortunately no progress: $ GSK_RENDERER=ngl rstudio [19496:1103/210330.025303:ERROR:gl_factory.cc(120)] Requested GL implementation (gl=none,angle=none) not found in allowed implementations: [(gl=egl-angle,angle=default),(gl=egl-gles2,angle=none)]. [19496:1103/210330.028349:ERROR:viz_main_impl.cc(198)] Exiting GPU process due to errors during initialization Segmentation fault (core

Thanks for the question. Here is a sample of the code for my plot: Top = c(34, 39, 42, 45, 46, 41, 41, 40, 43, 38, 33, 33) Bottom = c(24, 29, 32, 36, 32, 34, 32,41, 40, 39, 29, 24) plot(1,1, col = "white", xlim = c(1.3,11.7), ylim = c(0,80), axis = FALSE, xaxt = "n") axis(1, at = c(1:12)) polygon(c(c(1:12),c(12:1)), c(top, bottom), col =

...and edit draw.circle2 <- function (x, y, radius, nv = 100, border = NULL, col = NA, lty = 1, density=NA, angle=45, lwd = 1 ) { xylim <- par("usr") plotdim <- par("pin") ymult <- getYmult() angle.inc <- 2 * pi/nv angles <- seq(0, 2 * pi - angle.inc, by = angle.inc) if (length(col) < length(radius)) col <- rep(col, length.out = length(radius)) for (circle in 1:length(radius)) { xv <- cos(angles) * radius[circle] + x yv <- sin(angles) * radius[circle] * ymult + y...

When legend() is used with the angle argument as follows, not only the boxes beside the legend text, but also the whole legend box is filled with shading lines. I think this is not intended: plot(1:10) legend(8, 4, c("A", "B"), angle=c(10, 80), fill=NULL, density=20) I'd suggest as a fix (legend.R of R-1.5.0): 25c25 < rect2 <- function(left, top, dx, dy,

It is unlikely to be a packaging issue. I suggest you open a bug report here: https://github.com/rstudio/rstudio/issues. I?aki On Sun, 3 Nov 2024 at 22:04, Paul Smith <phhs80 at gmail.com> wrote: > Thanks, but unfortunately no progress: > > $ GSK_RENDERER=ngl rstudio > > [19496:1103/210330.025303:ERROR:gl_factory.cc(120)] Requested GL > implementation

Filling polygons with lines is a throwback to the time when the height of quality graphics was the mechanical pen plotter (a device that used a pen in a mechanical arm to draw the plot on a piece of paper). Computing and printing technology has advanced quite a bit from that day, so you may want to reconsider why you want polygons filled with lines instead of just a solid color (and I consider

BTW, meanwhile, you can install rstudio-server and use RStudio in your browser at http://localhost:8787 I?aki On Sun, 3 Nov 2024 at 22:10, I?aki Ucar <iucar at fedoraproject.org> wrote: > It is unlikely to be a packaging issue. I suggest you open a bug report > here: https://github.com/rstudio/rstudio/issues. > > I?aki > > On Sun, 3 Nov 2024 at 22:04, Paul Smith

> On Jun 14, 2017, at 9:46 AM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us> wrote: > > I don't see a question. If your question is whether R supports pattern fills, AFAIK it does not. If that is not your question, ask one. > -- > Sent from my phone. Please excuse my brevity. > > On June 14, 2017 7:57:41 AM PDT, jean-philippe <jeanphilippe.fontaine at