[vtkusers] Parallel coordinates Extraction

[Eric E. Monson]

Hey Darshan,

Because there's still a slight bug in the plot class you have to set the line opacity through the plot's Pen rather than through the lookup table. You also set the line width through the Pen (this is Python, so you may have to do some casting in C++):

chart.GetPlot(0).GetPen().SetOpacityF(0.8)
chart.GetPlot(0).GetPen().SetWidth(6)

You set the scalar range for each axis (index i) by first calling chart.GetAxis(i).SetBehavior(1) to set it to a "fixed" range rather than auto-rescaling, and then you call chart.GetAxis(i).SetMaximum() and SetMinimum(). If you want/need to then specify where the ticks are and what their labels are, then you need to call chart.GetAxis(i).SetTickPositions() with a vtkDoubleArray of position values and SetTickLabels() with a vtkStringArray of labels.

-Eric


On Mar 30, 2011, at 4:07 PM, Darshan Pai wrote:

> So i updated to the current nightly build . Now I see that the category colors are correct , but the output is transparent . I changed the opacity of the plot and set it to 1 but still the output lines are very light . Is there any way to change this behaviour . Also can I change the line Size ?
> 
> Regards
> Darshan
> <Updated_PC.jpg>