Results 1 to 4 of 4

Thread: Multiple curves overlay problem

  1. #1
    Join Date
    Dec 2013
    Posts
    15
    Thanks
    3
    Qt products
    Qt5
    Platforms
    Windows

    Default Multiple curves overlay problem

    Hi,
    Is there any possible way to show all the curves (each of 4 has different color) in the area where they have the same data points?
    Possible solutions which was tested by me:
    1. different width of curves. But it leads to creation of fat curves (and actually its not easy to see the other curves, cause of thin lines over the main fat curve), and lower precision.
    2. different style of curves(dash lines). But they all should be the same style(line) and width in the area where they DON'T have the same data points.

  2. #2
    Join Date
    Dec 2013
    Posts
    15
    Thanks
    3
    Qt products
    Qt5
    Platforms
    Windows

    Default Re: Multiple curves overlay problem

    The third solution that I think will work is to mix the colors of the curves in the mutual area. Is it possible to mix curve colors instead of show the first one who is on top?

  3. #3
    Join Date
    Feb 2006
    Location
    Munich, Germany
    Posts
    3,309
    Thanked 879 Times in 827 Posts
    Qt products
    Qt3 Qt4 Qt/Embedded
    Platforms
    MacOS X Unix/X11 Windows

    Default Re: Multiple curves overlay problem

    You can use semi transparent colors - simply set an alpha value < 255 for the colors of the curve pens.

    Uwe

  4. #4
    Join Date
    Dec 2013
    Posts
    15
    Thanks
    3
    Qt products
    Qt5
    Platforms
    Windows

    Default Re: Multiple curves overlay problem

    Thank you, but its not changes a lot(
    Can ask you another question. How can I set min number of steps for axis autoscaling?

Similar Threads

  1. Replies: 1
    Last Post: 22nd June 2012, 08:37
  2. QwtPlotcurve multiple curves
    By garij in forum Qwt
    Replies: 4
    Last Post: 10th May 2012, 13:30
  3. Replies: 6
    Last Post: 14th January 2011, 17:40
  4. Select multiple curves
    By aimsc in forum Qwt
    Replies: 2
    Last Post: 30th October 2009, 11:45
  5. Multiple curves on top of each other
    By jmsbc in forum Qwt
    Replies: 2
    Last Post: 15th July 2009, 20:46

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide.