1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
if (Sys.info()["sysname"] == "Windows") {
.my.tkdev <- function(hscale=1, vscale=1)
win.metafile(width=4*hscale,height=4*vscale, restoreConsole=FALSE)
} else if (exists("X11", env=.GlobalEnv)) {
.my.tkdev <- function(hscale=1, vscale=1)
X11("XImage", 480*hscale, 480*vscale)
} else stop("tkrplot only supports Windows and X11")
.make.tkindex <-
local({
.My.Tk.index <- 0
function() {
.My.Tk.index <<- .My.Tk.index + 1
.My.Tk.index
}
})
tkrplot <- function(parent, fun, hscale=1, vscale=1) {
image <- paste("Rplot", .make.tkindex(), sep="")
.my.tkdev(hscale, vscale)
try(fun())
.Tcl(paste("image create Rplot", image))
lab<-tklabel(parent,image=image) #**** use try, delete image on failure
tkbind(lab,"<Destroy>", function() .Tcl(paste("image delete", image)))
lab$image <- image
lab$fun <- fun
lab$hscale <- hscale
lab$vscale <- vscale
lab
}
tkrreplot <- function(lab, fun = lab$fun,
hscale=lab$hscale, vscale=lab$vscale) {
.my.tkdev(hscale, vscale)
try(fun())
.Tcl(paste("image create Rplot", lab$image))
}
#**** this is unspeakably crude
tkpersp <- function(x,y,z, theta = 30,phi = 30,expand = 0.5, r = sqrt(3), ...) {
base<-tktoplevel()
draw <- function() {
par(bg = "white")
try(persp(x, y, z, theta = theta, phi = phi, expand = expand, r = r,
...))
}
img<-tkrplot(base, draw)
getTclVar <- function(name)
.Tcl(paste("set", name))
setTclVar <- function(name, value)
.Tcl(paste("set ", name, " {", value, "}", sep = ""))
make.scale <- function(parent, from, to, resolution, title, command,
initial=from, showvalue =FALSE, orient="horiz") {
var <- paste("rgv_", .make.tkindex(), sep="")
setTclVar(var, initial)
fun <- function(...) command(as.numeric(getTclVar(var)))
frame <-tkframe(parent, relief="groove", borderwidth=2)
tkpack(tklabel (frame, text=title))
tkpack(tkscale(frame, command=fun, from=from, to=to,
showvalue=showvalue, variable=var,
resolution=resolution, orient=orient))
tkbind(frame,"<Destroy>", function() .Tcl(paste("unset", var)))
frame
}
frame <- tkframe(base)
s.theta <- make.scale(frame, from=0, to=360, resolution=5,
title="Theta", initial=theta, showvalue=TRUE,
command=function(x) {
if (x != theta) {
theta <<- x
tkrreplot(img)
}
})
s.phi <- make.scale(frame, from=0, to=360, resolution=5,
title="Phi", initial=phi, showvalue=TRUE,
command=function(x) {
if (x != phi) {
phi <<- x
tkrreplot(img)
}
})
s.expand <- make.scale(frame, from=0.05, to=1, resolution=0.05,
title="Expand", initial=expand, showvalue=TRUE,
command=function(x) {
if (x != expand) {
expand <<- x
tkrreplot(img)
}
})
s.r <- make.scale(frame, from=0.05, to=3, resolution=0.05,
title="R", initial=r, showvalue=TRUE,
command=function(x) {
if (x != r) {
r <<- x
tkrreplot(img)
}
})
tkpack(s.theta, s.phi, s.expand, s.r, side="left", anchor="n")
tkpack(img,frame)
}
.onLoad <- function(libname, pkgname) {
chname <- "tkrplot"
file.ext <- .Platform$dynlib.ext
dlname <- paste(chname, file.ext, sep = "")
if (is.character(.Platform$r_arch) && .Platform$r_arch != "")
path <- file.path("libs", .Platform$r_arc, dlname)
else path <- file.path("libs", dlname)
file <- system.file(path, package = pkgname, lib.loc = libname)[1]
tryCatch(tcl("load", file, "Rplot"),
error = function(e)
warning("loading Rplot failed", call. = FALSE))
}
|
