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Diffstat (limited to 'software/idl.page')
| -rw-r--r-- | software/idl.page | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/software/idl.page b/software/idl.page index e961a71..00b444a 100644 --- a/software/idl.page +++ b/software/idl.page @@ -16,8 +16,9 @@ Language Design IDL is "pass by reference", which means that arguments to functions are always variable pointers, not the actual value (the alternative is usually to pass by -copy, where the value gets passed through to a new variable inside the function.One side effect of this is that return values are collected by passing a -recieving variable name as an argument to functions. +copy, where the value gets passed through to a new variable inside the +function. One side effect of this is that return values are collected by +passing a recieving variable name as an argument to functions. Syntax ----------------- @@ -30,4 +31,15 @@ Command Interface Instead of the ever-standard ``!`` to execute system commands, use ``$``. +X Windows +-------------- +When used remotely with X Windows, sometimes plots don't refresh correctly +(eg, blacked out after another window has covered them). To correct this issue, +add these lines to your ``~/.Xdefaults``:: + !stuff to manage IDL under 24-bit Linux displays + idl.retain:2 + idl.gr_visual: TrueColor + +and then run ``xrdb -merge ~/.Xdefault``. (This tip from +http://star.pst.qub.ac.uk/help/idl.shtml) |