BLT problem

From: Bigdakine (bigdakine_at_aol.comGetaGrip)
Date: 10/28/04


Date: 28 Oct 2004 10:46:41 GMT


When run on a Windows 2000 system (source forge blt2.4z), this script fragment

      graph .sitka.g -width 7.0i -height 3.0i -plotbackground black -plotpadx
{2 2} -plotpady {2 2} -relief sunken -title "" -font
-*-courier-bold-*-*-*-8-*-*-*-*-*-*-* -rightmargin 1 -topmargin 1
      .sitka.g axis create time_axis
      .sitka.g axis create tide_axis
      vector create limits
      .sitka.g axis configure time_axis -min $TIME(0) -max $TIME([expr
$NUM_POINTS -1 ]) -tickfont *-courier-bold-r-bormal-*-10-* -ticklength 1.0m
      .sitka.g axis configure tide_axis -min [expr $MIN - .1] -max [expr
$TIDE(max) + .1] -tickfont *-courier-bold-r-normal-*-10-* -ticklength 1.0m
      .sitka.g legend configure -position bottom -font
-*-courier-bold-r-normal-*-10-* -anchor w
      .sitka.g xaxis use time_axis
      .sitka.g yaxis use tide_axis

Is just peachy all the way to here but gets in trouble with the create line1
statement:
      .sitka.g element create line1 -xdata TIME(0:[expr $NUM_POINTS - 1 ])
-ydata TIDE(0:[expr $NUM_POINTS - 1 ]) -mapy tide_axis -mapx time_axis

The error message complains that
TIME(": Premature end of expression while processing -xdata option

      .sitka.g element configure line1 -symbol none -color green
      .sitka.g legend configure -hide yes

      .sitka.g crosshairs on
      .sitka.g crosshairs configure -hide no -color red

      Blt_Crosshairs .sitka.g
      Blt_ZoomStack .sitka.g

      pack .sitka.g

Now I also run an earlier version of blt, 2.4u, on a Solaris system. Here I get
no complaints and the script works fine.

Is this a bug, or am I doing something wrong or that is fragile? I suppose what
I could do is dig up a blt2.4u for windows.

Thanks in advance,

Stuart

Dr. Stuart A. Weinstein
Ewa Beach Institute of Tectonics
"To err is human, but to really foul things up requires a creationist"
  

"Creationists aren't impervious to Logic: They're oblivious to it."