Flex - Scale3D Effect

Quiz

Introduction

The Scale3D class scales a target object in three dimensions around the transform center. A scale of 2.0 means the object is magnified by a factor of 2, and a scale of 0.5 means the object is reduced by a factor of 2.

Class Declaration

Following is the declaration for spark.effects.Scale3D class −

public class Scale3D
   extends AnimateTransform3D

Public Properties

Sr.No	Property & Description
1	scaleXBy : Number The factor by which to scale the object in the x direction.
2	scaleXFrom : Number The starting scale factor in the x direction.
3	scaleXTo : Number The ending scale factor in the x direction.
4	scaleYBy : Number The factor by which to scale the object in the y direction.
5	scaleYFrom : Number The starting scale factor in the y direction.
6	scaleYTo : Number The ending scale factor in the y direction.
7	scaleZBy : Number The factor by which to scale the object in the z direction.
8	scaleZFrom : Number The starting scale factor in the z direction.
9	scaleZTo : Number The ending scale factor in the z direction.

Public Methods

Sr.No	Method & Description
1	Scale3D(target:Object = null) Constructor.

Methods Inherited

This class inherits methods from the following classes −

spark.effects.AnimateTransform3D
spark.effects.AnimateTransform
spark.effects.Animate
mx.effects.Effect
flash.events.EventDispatcher
Object

Flex Scale3D Effect Example

Let us follow the following steps to check usage of Scale3D Effect in a Flex application by creating a test application −

Step	Description
1	Create a project with a name HelloWorld under a package com.tutorialspoint.client as explained in the Flex - Create Application chapter.
2	Modify HelloWorld.mxml as explained below. Keep rest of the files unchanged.
3	Compile and run the application to make sure business logic is working as per the requirements.

Following is the content of the modified mxml file src/com.tutorialspoint/HelloWorld.mxml.

<?xml version = "1.0" encoding = "utf-8"?>
<s:Application xmlns:fx = "http://ns.adobe.com/mxml/2009"
   xmlns:s = "library://ns.adobe.com/flex/spark"
   xmlns:mx = "library://ns.adobe.com/flex/mx
   width = "100%" height = "100%" minWidth = "500" minHeight = "500">
   
   <fx:Style source = "/com/tutorialspoint/client/Style.css" />
   <fx:Script>
      <![CDATA[
          private function applyScaleProperties():void {
            scaleEffect.play();
         }
     ]]>
   </fx:Script>
   
   <fx:Declarations>
      <s:Scale3D id = "scaleEffect" target = "{imageFlex}"
        scaleXFrom = "1.0" scaleXTo = "{Number(scalingX.text)}"
        scaleYFrom = "1.0" scaleYTo = "{Number(scalingY.text)}"
        scaleZFrom = "1.0" scaleZTo = "{Number(scalingZ.text)}"
      />
   </fx:Declarations>

   <s:BorderContainer width = "630" height = "480" id = "mainContainer"
      styleName = "container">
      <s:VGroup width = "100%" height = "100%" gap = "50"
         horizontalAlign = "center" verticalAlign = "middle">
         
         <s:Label id = "lblHeader" text = "Effects Demonstration"
            fontSize = "40" color = "0x777777" styleName = "heading" />
         <s:Panel id = "scale3DPanel" title = "Using Scale3D Effect"
            width = "500" height = "300">
               
            <s:layout>
               <s:HorizontalLayout  gap = "10" verticalAlign = "middle"
                  horizontalAlign = "center" />
            </s:layout>

            <s:VGroup top = "10" left = "15">
               <s:HGroup verticalAlign = "middle">
                  <s:Label text = "Scale By X:" width = "70" />
                  <s:TextInput id = "scalingX" text = "1.4" width = "50" />
               </s:HGroup>
                  
               <s:HGroup verticalAlign = "middle">
                  <s:Label text = "Scale By Y:" width = "70" />
                  <s:TextInput id = "scalingY" text = "1.4" width = "50" />
               </s:HGroup>

               <s:HGroup verticalAlign = "middle">
                  <s:Label text = "Scale By Z:" width = "70" />
                  <s:TextInput id = "scalingZ" text = "1.4" width = "50" />
               </s:HGroup>
                  
               <s:Button label = "Apply Properties" click = "applyScaleProperties()" />
            </s:VGroup>

            <s:Image id = "imageFlex"
               source = "http://www.tutorialspoint.com/images/flex-mini.png" />
         </s:Panel>
      </s:VGroup>
   </s:BorderContainer>
</s:Application>

Once you are ready with all the changes done, let us compile and run the application in normal mode as we did in Flex - Create Application chapter. If everything is fine with your application, it will produce the following result: [ Try it online ]

flex_visual_effects.htm

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