I have been seeing errors when running programs that use the plot addon; these
worked before so either something has changed in J or in Windows.
The errors appear in a window and not in the debugger, and they read
error in plot_gs_paint
domain error:cd
rc=.glcmds glcmds_jglc_@,(Poutput=iQTC)but
Any help solving this problem would be appreciated.
I would also like to suggest two enhancements to plot, as follow:
There is a line "info 'File written: ',file". I comment out this line and the
preceding "else." line, to prevent pd from opening a dialog box and requiring
you to respond each time it saves a plot to a .eps file.
The first line in the function makearea should be replaced with
(x ,. y),(({:x),0),:({.x),0
The line in question defines an arbitrary polygon by a sequence of vertices. In
the original version, if the first tic mark on the x axis preceded the first
actual x value, the polygon would be extended to the left with a spurious
rectangular area, and, perhaps more startling, if the last tic mark on the x
axis followed the last actual x value, the polygon would be extended to the
right with a spurious triangular area with vertex on the x axis; the change
prevents this behavior.
Richard Vaughan
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
