Using postLayoutTransformOffsets property to modify the position and scale of a component.

            

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    <!-- behaviors\Spark3DOffset.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script> 
         
        import mx.geom.TransformOffsets; 
        // Define an instance of TransformOffsets. 
        private var myXForm:TransformOffsets = new TransformOffsets(); 
        // Initialize the postLayoutTransformOffsets property of the target. 
        private function initOffsets():void { 
            targetImg.postLayoutTransformOffsets = myXForm; 
        } 
        // Move the target 20 pixels to the left and 
        // increase its x and y scale by 0.1. 
        private function nudgeImageLeft():void { 
            targetImg.postLayoutTransformOffsets.x = 
            targetImg.postLayoutTransformOffsets.x - 20; 
            targetImg.postLayoutTransformOffsets.scaleX = 
            targetImg.postLayoutTransformOffsets.scaleX + 0.1; 
            targetImg.postLayoutTransformOffsets.scaleY = 
            targetImg.postLayoutTransformOffsets.scaleY + 0.1; 
        } 
        // Move the target 20 pixels to the right and 
        // decrease its x and y scale by 0.1. 
        private function nudgeImageRight():void { 
            targetImg.postLayoutTransformOffsets.x = 
            targetImg.postLayoutTransformOffsets.x + 20; 
            targetImg.postLayoutTransformOffsets.scaleX = 
            targetImg.postLayoutTransformOffsets.scaleX - 0.1; 
            targetImg.postLayoutTransformOffsets.scaleY = 
            targetImg.postLayoutTransformOffsets.scaleY - 0.1; 
        } 
        // Reset the transform. 
        private function resetImage():void { 
            targetImg.postLayoutTransformOffsets.x = 0; 
            targetImg.postLayoutTransformOffsets.scaleX = 1.0; 
            targetImg.postLayoutTransformOffsets.scaleY = 1.0; 
        } 
      
    </fx:Script>
    <s:Panel title="Offset Example" width="75%" height="75%">
        <s:HGroup horizontalCenter="0" verticalCenter="0">
            <mx:Image source="@Embed(source='a.png')" />
            <mx:Image id="targetImg" source="@Embed(source='a.png')"
                creationComplete="initOffsets();" />
            <mx:Image source="@Embed(source='a.png')" />
        </s:HGroup>
        <s:HGroup left="5" bottom="5">
            <s:Button id="nudgeLeftButton" label="Nudge Left" click="nudgeImageLeft();" />
            <s:Button id="nudgeRightButton" label="Nudge Right" click="nudgeImageRight();" />
            <s:Button id="resetButton" label="Reset" click="resetImage();" />
        </s:HGroup>
    </s:Panel>
</s:Application>

Related examples in the same category

1.	Scale an image by setting its width and height
2.	Scale an Image with Embed setting
3.	BitMap Scaling
4.	Using 9-slice scaling to maintain a set border, regardless of how the image itself is resized.

Using postLayoutTransformOffsets property to modify the position and scale of a component. : Image Scale « Graphics « Flex

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