Colouring part of an image

Discussion in 'iOS Programming' started by PeterCushion, Jan 4, 2010.

  1. PeterCushion macrumors newbie

    Joined:
    Jan 4, 2010
    #1
    Hi Everyone

    Can anyone point me in the right direction as to how I can create a children's colouring book style App? I have all the images but am getting a little lost with the best approach - should I split the image up into layers? Ideally I'd like to be able to detect where the user has tapped on a single image and colour that part.

    If there are any tutorials (on-line or books) or source code examples anybody is aware of it would be much appreciated.

    Thanks in advance
     
  2. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #2
    Do a search. One of our Indian sounding friends asked the same some months back (then got very upset when the SDK didn't provide a one-line solution). Basically I'd look at implementing a flood-fill algorithm (see wikipedia).

    Edit to add: here is that wonderful thread
     
  3. iphonejudy macrumors 6502

    iphonejudy

    Joined:
    Sep 12, 2008
    #3
    Hi peter,


    The better solution is spliting the whole image in to separate layers then apply color
     

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