Access to coordinates of stream/path/integralcurves in plot?

[iljah]

Following script works but I cannot find a way to get e.g. start and end coordinates of streamlines produced by it. Is that possible?

#! /usr/bin/env -S visit -nowin -cli -s
save_win_attrs = SaveWindowAttributes()
save_win_attrs.family = 0
save_win_attrs.format = save_win_attrs.PNG
save_win_attrs.resConstraint = save_win_attrs.NoConstraint
save_win_attrs.fileName = 'test.png'
OpenDatabase('test.vtk')
AddPlot("Pseudocolor", "operators/IntegralCurve/variable", 1, 1)
IntegralCurveAtts = IntegralCurveAttributes()
IntegralCurveAtts.sourceType = IntegralCurveAtts.SpecifiedSphere
IntegralCurveAtts.radius = 1
SetOperatorOptions(IntegralCurveAtts, 0, 1)
SetSaveWindowAttributes(save_win_attrs)
DrawPlots()
SaveWindow()

[markcmiller86]

I would try an Export Database operation and try either XYZ, VTK or Blueprint export (with csv option).

[iljah]

Thanks, blueprint seemed to produce an empty directory but I think I can interpret xyz and vtk corretly to differentiate between streamlines.

[markcmiller86]

blueprint seemed to produce an empty directory

Hmmm...I didn't think to ask but how many points are you talking about with all the streamline geometry you are trying to export? If its a large number (say 10^6 or more), its possible you went looking in that directory before blueprint export had actually completed.

[iljah]

xyz and vtk files mention 119754 points

[markcmiller86]

Thats a small number. But, in earlier versions of VisIt, I have seen that particular export operation take longer than I had expected and went looking for files that took a much longer time to show up than I thought should. So, if you encounter issues with the other fromats, it might be worth re-visiting blueprint export and just waiting (a while...like maybe a few mins...yeah, it shouldn't take that long but I recall seeing this on earlier versions).