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. Calculating areas between QGraphicsItems
Forum Updated to NodeBB v4.3 + New Features

Calculating areas between QGraphicsItems

Scheduled Pinned Locked Moved Unsolved General and Desktop
1 Posts 1 Posters 120 Views
  • 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.
  • X Offline
    X Offline
    xtingray
    wrote on last edited by xtingray
    #1

    Hi!

    Currently I am trying to implement a bucket tool to fill with color the areas generated by the intersection of several QGraphicItems. Let me describe a couple of examples of my requirement.

    Example 1: If I have three independent paths that form a shape like this:
    alt text
    Could it be possible to calculate the area created by them, so I can add fourth element with the yellow shape?

    Example 2: If I have two ellipses
    alt text
    Could it be possible to calculate the area generated by the intersection of both elements, so I can include a third element with the yellow form?

    I am guessing that I will have to implement several algorithms, one for every case. Any way, I just started my research about this topic, so any suggestion or reference related to this problem is very welcome!
    Thanks.


    Qt Developer

    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