Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Drawning over images
Forum Updated to NodeBB v4.3 + New Features

Drawning over images

Scheduled Pinned Locked Moved General and Desktop
2 Posts 2 Posters 720 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • A Offline
    A Offline
    ArchGabe
    wrote on last edited by
    #1

    Hello guys,

    I am working on an user interface and I need some fancy drawning tools in order to draw a straight line over a picture. The picture is displayied on a QLabel (I am using OpenCv along Qt).
    I would like to do something like a click over the picture (mark a point over it), and while I move the pointer over the picture, the line end follows the pointer until I click over it again.

    Thank you in advance,

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      You could take a look at the "Scribble Example":http://qt-project.org/doc/qt-4.8/widgets-scribble.html to get some ideas on how to start with it.

      Hope it helps

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0

      • Login

      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved