How best can I create a panel which allows zoom on a drawing?

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  • steve
    #1

    How best can I create a panel which allows zoom on a drawing?


    I would like to create a panel, or other widget, on which I can draw,
    say, a triangle, and use the wheel on the mouse to zoom in and out on
    the drawing. A vector drawing.

    I know this can be done because I have seen apps that do this. They
    were 3D and I only need 2D but they were very fast.

    Is there an easy way to do this? Do I need to use the DirectX
    libraries to do this?

    Any pointer in the right direction would be very welcome and hopefully
    save me much time.

    Thanks,

    Steve
    Tags: None
    • Marc Gravell
      #2
      Re: How best can I create a panel which allows zoom on a drawing?

      I wonder if your best approach might be to use WPF to render the area?
      This natively supports scaleable vector-based graphics - you'd just need
      to add the mouse hooks... Try searching for +WPF +zoom

      Marc

        Comment

        • steve
          #3
          Re: How best can I create a panel which allows zoom on a drawing?


          Thanks. My original app was written using Windows Forms. Is there an
          easy way to convert to WPF?

          Steve



          On Fri, 09 May 2008 13:05:56 +0100, Marc Gravell
          <marc.gravell@g mail.comwrote:
          >I wonder if your best approach might be to use WPF to render the area?
          >This natively supports scaleable vector-based graphics - you'd just need
          >to add the mouse hooks... Try searching for +WPF +zoom
          >
          >Marc

            Comment

            • Chris Dunaway
              #4
              Re: How best can I create a panel which allows zoom on a drawing?

              On May 9, 6:48 am, steve <s_j_b...@yahoo .comwrote:
              I would like to create a panel, or other widget, on which I can draw,
              say, a triangle, and use the wheel on the mouse to zoom in and out on
              the drawing. A vector drawing.
              >
              I know this can be done because I have seen apps that do this. They
              were 3D and I only need 2D but they were very fast.
              >
              Is there an easy way to do this? Do I need to use the DirectX
              libraries to do this?
              >
              Any pointer in the right direction would be very welcome and hopefully
              save me much time.
              >
              Thanks,
              >
              Steve
              Check out this site:

              http://www.bobpowell.net


              and this link in particular:

              http://www.bobpowell.net/zoompicbox.htm


              Chris

                Comment

                • Marc Gravell
                  #5
                  Re: How best can I create a panel which allows zoom on a drawing?

                  Not really, but you can embed WPF in WinForm (via ElementHost) and
                  WinForm in WPF (via WindowsFormsHos t).

                  However, depending on the complexity, the zooming picturebox (that Chris
                  mentions) looks interesting.

                  Marc

                    Comment

                    • steve
                      #6
                      Re: How best can I create a panel which allows zoom on a drawing?


                      thanks, I will have to play around with it a bit to see how it would
                      work for what I want.

                      Steve



                      On Fri, 9 May 2008 06:41:43 -0700 (PDT), Chris Dunaway
                      <dunawayc@gmail .comwrote:
                      >On May 9, 6:48 am, steve <s_j_b...@yahoo .comwrote:
                      >I would like to create a panel, or other widget, on which I can draw,
                      >say, a triangle, and use the wheel on the mouse to zoom in and out on
                      >the drawing. A vector drawing.
                      >>
                      >I know this can be done because I have seen apps that do this. They
                      >were 3D and I only need 2D but they were very fast.
                      >>
                      >Is there an easy way to do this? Do I need to use the DirectX
                      >libraries to do this?
                      >>
                      >Any pointer in the right direction would be very welcome and hopefully
                      >save me much time.
                      >>
                      >Thanks,
                      >>
                      >Steve
                      >
                      >Check out this site:
                      >
                      >http://www.bobpowell.net
                      >
                      >and this link in particular:
                      >
                      >http://www.bobpowell.net/zoompicbox.htm
                      >
                      >Chris

                        Comment

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