Arrows(shape)
Arrows()所属R语言包：shape
adds arrows with improved arrowhead to a plot
添加箭头，与改进箭头的图
译者：生物统计家园网 机器人LoveR
描述----------Description----------
adds one or more arrows to a plot; arrowhead shape is either curved, a triangle, a circle or simple
添加一个或多个箭头的图;要么是弯曲的箭头形状，三角形，圆形或简单
用法----------Usage----------
Arrows(x0, y0, x1, y1, code = 2, arr.length = 0.4,
arr.width = arr.length/2, arr.adj = 0.5, arr.type = "curved",
segment = TRUE, col = "black", lcol = col, lty = 1, arr.col = lcol,
lwd = 1, arr.lwd = lwd, ...)
参数----------Arguments----------
参数：x0
x-coordinates of points *from* which to draw arrows; either one value or a vector.
的点的x坐标*从*绘制箭头的任一个值或一个矢量。
参数：y0
y-coordinates of points *from* which to draw arrows; either one value or a vector.
的点的y坐标*从*绘制箭头的任一个值或一个矢量。
参数：x1
x-coordinates of points *to* which to draw arrows; either one value or a vector.
的点的x坐标*到*其中绘制的箭头;的任一个值或一个矢量。
参数：y1
y-coordinates of points *to* which to draw arrows; either one value or a vector.
的点的y坐标* *其中绘制的箭头;的任一个值或一个矢量。
参数：code
integer code determining kind of arrows to draw.
整数代码确定种箭头画。
参数：arr.length
approximate length of arrowhead, in cm; either one value or a vector.
近似长度的箭头，以厘米为一个值或一个矢量。
参数：arr.width
approximate width of arrowhead, in cm; either one value or a vector.
箭头，在近似宽度厘米;的任一个值或一个矢量。
参数：arr.adj
0,0.5,1 specifying the adjustment of the arrowhead.
0,0.5,1指定的箭头的调整。
参数：arr.type
type of arrowhead to draw, one of "simple", "curved", "triangle", "circle", "ellipse" or "T".
类型的箭头画，“简单”，“弯曲”，“三角”，“圆”，“椭圆”或“T”。
参数：segment
logical specifying whether or not to draw line segments.
逻辑指定是否要绘制线段。
参数：col
general line color specification; one value or a vector.
一般线的颜色指定一个值或一个向量。
参数：lcol
line color specifications; either one value or a vector. ignored when arr.type = "simple" or "T" - use "col"
线的颜色规格，任何一个值或一个向量。忽略时arr.type ="simple"或"T" - 使用“山坳”
参数：lty
line type specifications; either one value or a vector.
线路类型规格;任何一个值或一个向量。
参数：arr.col
color of arrowhead; either one value or a vector.
颜色的箭头;的任一个值或一个矢量。
参数：lwd
general line width specification. The default value changed to 1 from version 1.4 (was 2)
总路线宽度规范。默认值更改为1，从1.4版本（2）
参数：arr.lwd
line width of arrowhead.
直线宽度的箭头。
参数：...
arguments passed to lines or segments function.
线或分段函数参数传递给。
Details
详细信息----------Details----------
x0, y0, x1, y1, arr.length, arr.width, arr.adj, lcol, lty and arr.col can be a vector, of the same length.
x0，y0，x1，y1，arr.length，arr.width，arr.adj，lcol，lty和arr.col可以是一个矢量，具有相同的长度。
For each 'i', an arrow is drawn between the point '(x0[i], y0[i])' and the point '(x1[i],y1[i])'.
对于每一个的“i”，绘制一个箭头之间的点“（X0 [i]的，Y0的[i]的）”和点“（×1 [i]的，Y1 []）。
If code=1 an arrowhead is drawn at '(x0[i],y0[i])'
如果code = 1箭头绘制在（X0 [I]，Y0 [I]）
if code=2 an arrowhead is drawn at '(x1[i],y1[i])'.
如果code= 2在“画箭头（X1 [I]，Y1 [I]）。
If code=3 an arrowhead is drawn at both ends of the arrow
如果code= 3箭头绘制的箭头的两端
unless arr.length = 0, when no head is drawn.
除非arr.length= 0，当没有头绘制。
If arr.adj = 0.5 then the centre of the arrowhead is at the point at which it is drawn.
如果arr.adj= 0.5，则中心的箭头是在它被绘制在点。
arr.adj = 1 causes the tip of the arrowhead to touch the point.
arr.adj= 1导致的箭头的前端接触的点。
arr.adj = 2 causes the base of the arrowhead to touch the point.
arr.adj= 2的原因的箭头的基础上触摸的点。
The type of the arrowhead is set with arr.type which can take the values:
类型的箭头arr.type的值可以取：
"simple" : uses comparable R function arrows
“简单”：使用可比性的R功能箭头
"triangle": uses filled triangle
“三角”：使用实心三角形
"curved" : draws arrowhead with curved edges
“曲线”：绘制箭头弯曲的边缘
"circle" : draws circular head
“圈子”：绘制圆形头
"ellipse" : draws ellepsoid head
“椭圆形”：绘制ellepsoid的头
"T" : draws T-shaped (blunt) head
“T”：绘制T形头（冲服）
（作者）----------Author(s)----------
Karline Soetaert <karline.soetaert@nioz.nl>
参见----------See Also----------
arrows the comparable R function
arrows可比性的R功能
Arrowhead
Arrowhead
实例----------Examples----------
xlim <- c(-5 , 5)
ylim <- c(-10, 10)
plot(0, type = "n", xlim = xlim, ylim = ylim,
main = "Arrows, type = 'curved'")
x0 <- runif(100, xlim[1], xlim[2])
y0 <- runif(100, ylim[1], ylim[2])
x1 <- x0+runif(100, -1, 1)
y1 <- y0+runif(100, -1, 1)
Arrows(x0, y0, x1, y1, arr.length = runif(100), code = 2,
arr.type = "curved", arr.col = 1:100, lcol = 1:100)
plot(0, type = "n", xlim = xlim, ylim = ylim,
main = "Arrows, type = 'circle'")
x0 <- runif(100, xlim[1], xlim[2])
y0 <- runif(100, ylim[1], ylim[2])
x1 <- x0 + runif(100, -1, 1)
y1 <- y0 + runif(100, -1, 1)
Arrows(x0, y0, x1, y1, arr.length = 0.2, code = 3,
arr.type = "circle", arr.col = "grey")
plot(0, type = "n", xlim = xlim, ylim = ylim,
main = "Arrows, type = 'ellipse'")
Arrows(x0, y0, x1, y1, arr.length = 0.2, arr.width = 0.5,
code = 3, arr.type = "ellipse", arr.col = "grey")
curve(expr = sin(x), 0, 2*pi+0.25, main = "Arrows")
x <- seq(0, 2*pi, length.out = 10)
xd <- x + 0.025
Arrows(x, sin(x), xd, sin(xd), type = "triangle",
arr.length = 0.5, segment = FALSE)
xx <- seq(0, 10*pi, length.out = 1000)
plot(sin(xx)*xx, cos(xx)*xx, type = "l", axes = FALSE,
xlab = "", ylab = "", main = "Arrows, type = 'curved'")
x <- seq(0, 10*pi, length.out = 20)
x1 <- sin(x)*x
y1 <- cos(x)*x
xd <- x+0.01
x2 <- sin(xd)*xd
y2 <- cos(xd)*xd
Arrows(x1, y1, x2, y2, arr.type = "curved", arr.length = 0.4,
segment = FALSE, code = 1, arr.adj = 0.5 )
plot(sin(xx)*xx, cos(xx)*xx, type = "l", axes = FALSE,
xlab = "", ylab = "", main = "Arrows, type = 'T'")
Arrows(x1, y1, x2, y2, arr.type = "T", arr.length = 0.4,
code = 1, arr.lwd = 2)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
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发表于 2012-9-30 01:52:57
