Full_Name: Jonathan Paisley
Version: 2.1.1
OS: Mac OS X 10.4.2
Submission from: (NULL) (81.178.107.67)
I was following an example from library/grid/doc/grid.pdf ("Introduction to
grid") and had the following code, where I'd mis-typed 1,3 instead of 1,2 as the
first arguments to grid.layout.
Sourcing this code causes the R GUI to crash. I've enclosed a partial backtrace
from the crash below.
==============
require(grid)
sometext = "hello there\nthis is a \ntest!"
pushViewport(
viewport(
layout=grid.layout(1,3,
widths=unit.c(
unit(1,"strwidth",sometext) +
unit(2,"cm"),
unit(1,"null")
)
)
)
)
==============
Date/Time: 2005-07-19 11:35:30.950 +0100
OS Version: 10.4.2 (Build 8C46)
Report Version: 3
Command: R
Path: /Volumes/George/MyApplications/R.app/Contents/MacOS/R
Parent: WindowServer [146]
Version: 1.12 (1622)
PID: 10493
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at 0x68000001
Thread 0 Crashed:
0 libR.dylib 0x00303d1c Rf_isObject + 0 (util.c:623)
1 grid.so 0x060c6240 pureNullUnit + 40 (unit.c:270)
2 grid.so 0x060c6284 pureNullUnit + 108 (unit.c:273)
3 grid.so 0x060c3894 findRelWidths + 60 (layout.c:69)
4 grid.so 0x060c484c calcViewportLayout + 172
(layout.c:464)
5 grid.so 0x060ca888 calcViewportTransform + 1296
(viewport.c:356)
6 grid.so 0x060be0a0 doSetViewport + 256 (grid.c:200)
7 grid.so 0x060be5ac L_setviewport + 76 (grid.c:311)
8 libR.dylib 0x00249318 do_dotcall + 652 (dotcode.c:770)
9 libR.dylib 0x0024cc7c do_dotcallgr + 80 (dotcode.c:1450)
10 libR.dylib 0x00263b24 Rf_eval + 1536 (eval.c:405)
11 libR.dylib 0x00265b1c do_set + 224 (eval.c:1309)
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