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POHow to properly create a Point relative to an Image using FigPanZoom?
 

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  1. POHow to properly create a Point relative to an Image using FigPanZoom?
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    <p>I have an Image that's 5000 pixels by 5000 pixels. It's scaled up and down regularly to fit different parts of the image into the window. </p> <p>I'm making a function that focuses in on different places on the image (like a map) and then zooms into a certain scale that I specify.</p> <p>I pass my point into this function (new Point(2000,2500) for example)) however this always breaks because it's not relative to the image specifically.</p> <p>How do I make the Point relative to the image at the image's given scale at any given time?</p> <p>Additional Info: I'm using the guide here <a href="http://www.adobe.com/devnet/flex/samples/fig_panzoom.html" rel="nofollow">http://www.adobe.com/devnet/flex/samples/fig_panzoom.html</a> for panning and zooming functionality.</p> <p><strong>Solved:</strong></p> <p>One of my pitfalls was that I was using a possible bitmapScaleFactor > 1 which would mess up the scaling. This was the final function that worked for my usage.</p> <pre><code>protected function testFocus(p:Point):void { var content:ContentRectangle = boardViewer._contentRectangle; var panToPoint:PanToPointCommand = new PanToPointCommand(boardViewer, content); var scale:Number = boardViewer.bitmapScaleFactor; var location = new Point((p.x*scale)+content.x, (p.y*scale)+content.y); var center = new Point(boardViewer.width/2, boardViewer.height/2); //Move the point to the center panToPoint.fromPoint = location; panToPoint.toPoint = center; panToPoint.execute(); } </code></pre>
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    1. USbuddyp450
    1. USbuddyp450
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    1. COI'm not sure I understand how this function is using the point you send it. Perhaps you should share the code behind your function.
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      1. POHow to properly create a Point relative to an Image using FigPanZoom?
      1. USJeffryHouser
    2. COAll that happens is it takes the point and simulates a mouse click at that point on the image. In my question, the point's coords (2000,5000) represent the pixel x and y in the image, not the stage.
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      1. POHow to properly create a Point relative to an Image using FigPanZoom?
      1. USbuddyp450
    3. COWithout knowing precisely your DisplayObject hierarchy, it's difficult to say what the best approach would be but you can take a look at the article: http://help.adobe.com/en_US/as3/dev/WS5b3ccc516d4fbf351e63e3d118a9b90204-7dca.html#WS5b3ccc516d4fbf351e63e3d118a9b90204-7dc5 that talks about translating coordinate spaces. It might point you in the right direction.
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      1. POHow to properly create a Point relative to an Image using FigPanZoom?
      1. USmartineno
 

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