variable unknown or not in data set: PLOT_VAR with curvilinear data

[rechristonga]

In LAS 8.6.9 I get the following error when plotting line plots of curvilinear data:

**ERROR: variable unknown or not in data set: PLOT_VAR
stat the_plot_var

occuring in LAS_results.jnl because plot_var is not defined.

It does not matter whether I use ferret or pyferret in the background. The map plot works because plot_var is defined in that case. I unfortunately cannot provide you with a link because my test server is not accessible from outside.

Thanks for your time and best regards,
Remon

Here are the last lines of the debugging output:

! Enter_GO LAS_results point
cancel region
set data 1
IF ($have_las_plotvar"0") THEN
 !-> IF 0 THEN
ELSE
   IF ($native_curvilinear_xy"0|0|*>1") THEN
 !-> IF 1 THEN
      LET the_plot_var = plot_var
   ELIF ($do_hybrid_z"0|0|*>1") THEN
 !-> ELIF 0 THEN
   ENDIF
ENDIF
IF `($ngood_data"-1|*>1") NE -1` THEN
 !-> IF 0 THEN
ELSE
   IF `($ferret_annotations"0|*>1") AND ($plotvar_is_basemap"0|*>1") EQ 0 AND ($no_novalid_lab"0|*>1") NE 1` THEN
 !-> IF 1 THEN
      stat the_plot_var