1
2# This library is free software; you can redistribute it and/or
3# modify it under the terms of the GNU Library General Public
4# License as published by the Free Software Foundation; either
5# version 2 of the License, or (at your option) any later version.
6#
7# This library is distributed in the hope that it will be useful,
8# but WITHOUT ANY WARRANTY; without even the implied warranty of
9# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10# GNU Library General Public License for more details.
11#
12# You should have received A copy of the GNU Library General
13# Public License along with this library; if not, write to the
14# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
15# MA  02111-1307  USA
16
17
18################################################################################
19# FUNCTION:                 DESCRIPTION:
20#  symbolTable               Shows a table of plot symbols from a given font
21################################################################################
22
23
24symbolTable <-
25function(font = par('font'), cex = 0.7)
26{
27    # A function implemented by Diethelm Wuertz
28
29    # Description:
30    #   Shows a table of plot characters from a given font
31
32    # Example:
33    #   symbolTable()
34
35    # Author:
36    #   Unknown, piece of code found on the internet.
37
38    # FUNCTION:
39
40    # Table:
41    plot(0, 0, xlim = c(-1, 11), ylim = c(0, 26), type = 'n',
42        axes = FALSE, xlab = '', ylab = '',
43        main = "Table of Plot Characters")
44    j = -1
45    for(i in 0:255) {
46        if(i %% 25 == 0) {j = j+1; k = 26}
47        k = k-1
48        points(j, k, pch = i, font = font, cex = cex, col = 2)
49        text(j + 0.50, k, i, cex = cex)
50    }
51
52    # Return Value:
53    invisible(font)
54}
55
56
57################################################################################
58
59