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Listing 7 also signals the end of the class and the end of the program.

Run the program

I encourage you to run this program from the web. Then copy the code from Listing 8 through Listing 10. Use that code to create an ActionScriptproject and a Flex project. Compile and run the projects. Experiment with the code, making changes, and observing the results of your changes.Make certain that you can explain why your changes behave as they do.


I will publish a list containing links to ActionScript resources as a separate document. Search for ActionScript Resources in the Connexions searchbox.

Complete program listings

Complete listings of the source code for the two programs discussed in this lesson are provided below.

Source code for the program named bitmap03.

/********************************************************* * Bitmap03 11/29/09* Can be run as an ActionScript project. However, some * changes are required to convert it to a Flex project.* * For some reason, the size and position of the 100x100* pixel red square depends on the size and the height to * width ration of the browser window.*********************************************************/ package {import flash.display.Sprite import flash.display.Bitmap;import flash.display.BitmapData;public class Bitmap03 extends Sprite { public function Bitmap03(){//Create a BitmapData object with a red opaque // background.var bitmapData:BitmapData = new BitmapData(100, 100, false, 0xFF0000);//Draw a yellow cross on the backgroundvar yellow:uint = 0xFFFF00; for(var cnt:uint = 0; cnt<100; cnt++){ bitmapData.setPixel(cnt, cnt, yellow);bitmapData.setPixel(100 - cnt, cnt, yellow); } //end for loop//Encapsulate the bitmap data into a new Bitmap// object and add it to the display. For some // reason, the red square displays as 50x50 instead// of 100x100. var bitmapObj:Bitmap = new Bitmap(bitmapData);addChild(bitmapObj); } //end constructor} //end class } //end package

Mxml code for the program named bitmap04.

<?xml version="1.0" encoding="utf-8"?><!--Bitmap04 --><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"xmlns:cc="CustomClasses.*"><cc:Driver/></mx:Application>

Source code for the driver class in the program named bitmap04.

/********************************************************* * Bitmap04 11/29/09* This is an update to Bitmap03 to make it possible to * compile and run it as a Flex project. Unlike Bitmap03* the red square produced by this program displays at the * correct size of 100x100 pixels.*********************************************************/ package CustomClasses{import mx.containers.VBox; import flash.display.Bitmap;import flash.display.BitmapData; import mx.core.UIComponent;public class Driver extends VBox{//Note that this class extends Sprite, nothing shows // on the display. Therefore it extends VBox instead.public function Driver(){ //Prepare the display area. This is window dressing.setStyle("backgroundAlpha",1.0); setStyle("backgroundColor",0x00FFFF);width = 150; height = 150;//Create a BitmapData object with a red opaque// background. var bitmapData:BitmapData =new BitmapData(100, 100, false, 0xFF0000);//Draw a yellow cross on the background var yellow:uint = 0xFFFF00;for(var cnt:uint = 0; cnt<100; cnt++){ bitmapData.setPixel(cnt, cnt, yellow);bitmapData.setPixel(100 - cnt, cnt, yellow); } //end for loop//Encapsulate the bitmap data into a new Bitmap// object and add it to the display.var bitmapObj:Bitmap = new Bitmap(bitmapData);//The following is necessary because the Bitmap // class is not a subclass of UIComponent.var uiComponent:UIComponent = new UIComponent(); uiComponent.addChild(bitmapObj);addChild(uiComponent); } //end constructor} //end class } //end package


This section contains a variety of miscellaneous materials.

Housekeeping material
  • Module name: Bitmap Basics
  • Files:
    • ActionScript0130\ActionScript0130.htm
    • ActionScript0130\Connexions\ActionScriptXhtml0130.htm
PDF disclaimer: Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.


Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Object-oriented programming (oop) with actionscript. OpenStax CNX. Jun 04, 2010 Download for free at http://cnx.org/content/col11202/1.19
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