Newbie - x3d (/VRML) and Java3d.....

Dear all,
I'm currently working on an x3d project in the world of academia; I have
experience with various other languages, but I'm a complete newbie with x3d.
Is it possible to build my x3d application on top of Java3d (/Java)??
To me, it seems sensible to build all my proto's as Java3d objects and
handle all my scripting within Java3d??
I suppose my question is "How do Java3d and x3d work together?"
(This question could just as easily be phrased - "How do Java and VRML fit
together?")
Any help would be much appreciated!
Regards,
Ben

I have done NOTHING but VRML/X3D for the past 6
months. It's definitely in bad shape.Although I've been coding x3d for 7 days (pretty much solidly!).....
I agree with you completely on this one!!
Todays bug:<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D
          3.0//EN" "http://www.web3d.org/specifications/x3d-3.0.dtd">
<X3D profile="Immersive">
   <Scene>
      <Script>
         <field name="test" type="SFVec2d" accessType="initializeOnly"/>
      </Script>
   </Scene>
</X3D>Seems like perfectly valid code.....
Unfortunately Octaga Professional (the only browser that sort of works! And retails @ $800!) crashes! It doesn't like SFVec2d or: MFVec2d, SFVec3f, MFVec3f!!! Complete pain!
Things like this have taken be hours!! Things that should work don't!! Thus you have to debug to find the problem, find a workaround and hack it! And hacking it is not something that I ever do - although I don't see an alternative!
Workaround:
<field name="velocity" type="MFNode" accessType="initializeOnly">
   <Transform translation="0 0 0"/>
   <Transform translation="0 0 0"/>
</field>

Similar Messages

VRML and JAVA

i�m working with vrml and i wanna make a script in java to send messages with sockets and stuff. to connect vrml and java i need the vrml package, can someone send it to me or tell me where can i dowload it?
thanks

you need to find a 3d library, or use java3d.
the VRML file is describing for example draw a sphere with size that, and that position, with that texture.
a list of such, describes a world.
I think it is possible if you find a 3d library a piece of cake to do it in 180 hours.

I am a newbie...and I think I did a big no-no as my Ipad isn't working. I synced it to a second computer at work which is a new Imac after already syncing to my pc at home with Itunes. Now it says it can't restore and can't get it to open. HELP!

I am a newbie...and I think I did a big no-no as my Ipad isn't working. I synced it to a second computer at work which is a new Imac after already syncing to my pc at home with Itunes. Now it says it can't restore and can't get it to open, getting error messages but can't fix myself. Can anyone help??

iPad can connect only in one iTunes Library. If you want to connect it to a iTunes Library then you have to erase it. You can erase it from iTunes. Make sure you iPad doesn't have a password, or if it has a password make sure that you connect to the computer and enter the password of your iPad

Im a newbie in java and i need help. im a student

im an I.T student in Adamson University here in the philippines i went here to ask help about our activity in school about java. our professor told us to make a program in java (btw were using netbeans) that will ask the user his birth year and then the output will tell the zodiac sign of the year entered. she told us (our prof) to make it using showInputDialog. and then to show the output we must use the JOptionPane.showMessageDialog.
i try to do it but i found myself in trouble bcoz im new in java.
i try to to it and here's what i did
import javax.swing.JOptionPane;
public class Zodiac;
public static void main(String args[])
String name=JOptionPane.showInputDialog("Enter your year of birth?");
String message=String.format("Your zodiac sign is tiger");
JOptionPane.showMessageDialog(null,message);
i knew that i need to use conditional statements here but i dont know where to put it and how to declare the JOptionPane.etc.
pls help me asap im a newbie.

as you wish heres what i did. this is not a gui version
* To change this template, choose Tools | Templates
* and open the template in the editor.
package marlonestipona;
* @author ESTIPONA
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int yr1;
String tgr ="Tiger";
String dog ="Dog";
String rbt ="Rabbit";
String ox ="Ox";
String drgn ="Dragon";
String rat ="Rat";
String pig ="Pig";
String rst ="Rooster";
String hrs ="Horse";
String shp ="Sheep";
String mky ="Monkey";
String snk ="Snake";
System.out.print("Enter your birth year: ");
yr1=input.nextInt();
if (yr1==1974 || yr1==1986 || yr1==1998)
System.out.printf("Your zodiac sign is %s!\n",tgr);
}else if (yr1==1982 || yr1==1994 || yr1==2006){
System.out.printf("Your zodiac sign is %s!\n",dog);
}else if (yr1==1975 || yr1==1987 || yr1==1999){
System.out.printf("Your zodiac sign is %s!\n",rbt);
}else if (yr1==1973 || yr1==1985 || yr1==1997){
System.out.printf("Your zodiac sign is %s!\n",ox);
}else if (yr1==1976 || yr1==1988 || yr1==2000){
System.out.printf("Your zodiac sign is %s!\n",drgn);
}else if (yr1==1972 || yr1==1984 || yr1==1996){
System.out.printf("Your zodiac sign is %s!\n",rat);
}else if (yr1==1983 || yr1==1995 || yr1==2007){
System.out.printf("Your zodiac sign is %s!\n",pig);
}else if (yr1==1981 || yr1==1993 || yr1==2005){
System.out.printf("Your zodiac sign is %s!\n",rst);
}else if (yr1==1978 || yr1==1990 || yr1==2000){
System.out.printf("Your zodiac sign is %s!\n",hrs);
}else if (yr1==1971 || yr1==1991 || yr1==2003){
System.out.printf("Your zodiac sign is %s!\n",shp);
}else if (yr1==1980 || yr1==1992 || yr1==2004){
System.out.printf("Your zodiac sign is %s!\n",mky);
}else if (yr1==1977 || yr1==1989 || yr1==2001){
System.out.printf("Your zodiac sign is %s!\n",snk);
} else
System.out.println("Invalid");
now my problem is how to turn this whole code into gui using those dialog boxes.

Java Web Start and Java3D

Hi All
Do you know any free server that uses Java Web Start? I want to upload my Java3D application.....
Thank u

Hi
@JAddicted, as far as I know the most you can get for free is DNS servers. Everything else you will have to pay. And now the worst part, most of the server hosting companies don't offer java webstart capability for a regular price. Hope it helped. Don't take my answer as final, my intention is to give you a heads up based on my experiences.
Venkat

About VRML and JAVA question?

i have some question......
import vrml.*;
import vrml.field.*;
import vrml.node.*;
public .........
when i complie the file contain this, the complier said that there haven't this files or function, how can i use this function? where can download this?
Thank you

when i complie the file contain this, the complier
said that there haven't this files or function, how
can i use this function? where can download this?There are no packages called vrml.* in the jdk. What do you want to do with the files? If you want to visualise the models you could have a look at Java3D, they have some preprogrammed model loaders for VRML if I remember correctly. If you just want to manipulate the markup you can also use the DOM or SAX parsers.

Newbie at this and need help

Hello,
I am a complete newbie at this Itunes stuff and I have some very basic questions. If somebody would be willing to help me out I would appreciate it. So I have loaded Itunes on my PC. I then put in a cd that my friend burned a ton of songs on for me thinking that the CD would automatically appear in Itunes where then I could move it to my Itunes library. However the CD doesn't appear in Itunes and the only way I can play it is just through Windows Media. Any idea on how to get this to my Itunes library?
In addition, sometimes when I try to play a song in Itunes it says that it can't find the file and asks if I want to locate it. I saved the burned CD in the Itunes folder on my computer but it still didn't seem to work. Any suggestions?
Thanks for any help you can give.
Chris

I don't know much about CD not working problems, someone else will probably chip in.
As a workaround while you are sorting it out, you can import tracks with Windows Media Player. You need to set the format to MP3 in the WMP options. On the latest version you have to click on Rip to find it. I don't remember where it is on the earlier version.
Once you have imported the tracks find the name of the folder they are in, then open iTunes and click:
File>Add folder to library
Before you do this, you need to decide if you are happy to leave the tracks where they are or if you want to make a copy of them in the iTunes Music folder. You can set this in
Edit>Preferences>Advanced>general
There is a check box labled "Copy files to iTunes Music folder when adding to library.
iTunes will work OK either way.
On the CD thing - you should find "Run CD diagnostics" on the help menu - you could post the result here.
(I am using Version 6.0.5 so things may not be quite the same on your version)

Need help! Vrml&Java&Java3D

I want to control a Vrml Model through Java applet or Java 3D,I try some methods,but none of them work well.
I edited my source code in UltraEdit,and compiled it under command line,in my classpath,I had added the vrml97.jar,so I compiled it successful,but when I run it,it cause a exception"NoClassDefException",what should I do?
So I changed my method,I used another "jar" file provided by cosmoplayer,a Vrml Browser,to control my model,as example in the web,I complied it successful,but when I run it through IE,it still cause some exceptions,even when I try the example provided by cosmoplayer itself,it also give me some wrong information just like this:
Loading Script Node class http://foo.co.jp/Example1.class
# Could not load the script class http://foo.co.jp/Example1.class.
# Please make sure the class is declared PUBLIC or the class file exists.
but this class file is on that path properly! I was puzzled
with this for a long time.by the way,all the document in the web only write the source file like this:
import vrml.*;but I can't found this package,so I renamed the nocosmop21.jar into vrml.jar.and put it in the classpath,but I think this is not the correct way,it must cause a lot of trouble.So if I want use the jar provided with cosmoplayer,what should I do?

Did you install Vrml97.jar in your JRE's ext folder (so it will be used in running your applet) as well as you SDK's folder (so that it can be used in the compile)?
Check out the link shown below where I've worked with another person who had similar problem -- while I was able to finally helped that person, it turned out that I wasn't too succesful myself simply because I was using SDK1.3.1.
http://forum.java.sun.com/thread.jsp?forum=37&thread=231662
The problem with using vrml in an applet is that if you need to read a .wrl file from the local disk with the vrml class loader, you run into two security violations: runtime permission to use the class loader and i/o permission to read the local disk file. The URL that I posted in the link shown above is still active and you can try to run this self-signed applet to see if it works for you.
V.V.

Next newbie fun - drag and drop

Well after a very successful last posting - here goes again .... I'm trying to get the dragged images to appear in the box. But for some reason they're not appearing. As you can tell - I is still a newbie!
Thanks
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        <![CDATA[
        import mx.controls.Image;
        import mx.managers.DragManager;
        import mx.core.DragSource;
        private function dragIt(event:MouseEvent, value:uint):void
            // Get the drag initiator component from the event object.
            var dragInitiator:Image = event.currentTarget as Image;
            // Create a DragSource object - stores info about the drag data
            var dragSource:DragSource = new DragSource();
            // Add the data to the object.
            dragSource.addData(value, 'value');
            // Create a copy of the coin image to use as a drag proxy.
            var dragProxy:Image = new Image();
            dragProxy.source = event.currentTarget.source;
            // Call the DragManager doDrag() method to start the drag.
            DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
           private function preLetGo(event:MouseEvent):void
               // Get the drop target component from the event object.
               var dropTarget:VBox = event.currentTarget as VBox;
            // Accept it
            DragManager.acceptDragDrop(dropTarget);
        // Build new array based on what gets dragged over it
        private function letGo(event:MouseEvent):void
            var images:Array = [];
            var newImage:Image = new Image();
            newImage.source = event.currentTarget.source;
            images.push({img:newImage});
            content.dataProvider = images;
        ]]>
    </mx:Script>
    <mx:VBox>
        <mx:Image source="images/image1.jpg" mouseDown="dragIt(event,1);" />
        <mx:Image source="images/image2.jpg" mouseDown="dragIt(event,2);" />
    </mx:VBox>
    <mx:VBox width="400" height="200" id="vbox" backgroundColor="#c0c0c0">
        <mx:Label text="Drop here" />
        <mx:List id="content" dragEnter="preLetGo(event);" dragDrop="letGo(event);" labelField="images" />
    </mx:VBox>
</mx:Application>

K-kOo, the List is not the target of the drag and drop, I believe UKuser27 wants the images to show up in the VBox, and for the list to be a tally of which images are now in the VBox.
I could be wrong, but his AS is setting DragManager.acceptDragDrop(VBox(event.currentTarget)).
UKuser27, with my assumptions above, I've redone your app to act as so. Much like in Adobe's example at http://livedocs.adobe.com/flex/3/html/help.html?content=dragdrop_7.html you have to adjust the image's whereabouts. In their example, they're moving an object already inside a Canvas, so they use the handler to update the xy coords. In your case, you need to remove the image from the first VBox, and add it to the second one. It will then show up under the List element (though I'm not sure why you'd want that).
Here is my interpretation of what you wanted. Even if it is not exactly what you want, should give you the right direction to move forward with:
<?xml version="1.0"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        <![CDATA[
            //Import classes so you don't have to use full names.
            import mx.managers.DragManager;
            import mx.core.DragSource;
            import mx.events.DragEvent;
            import flash.events.MouseEvent;
            import mx.controls.Alert;
               private var imageList:Array = [];
            // The mouseMove event handler for the Image control
            // initiates the drag-and-drop operation.
            private function mouseMoveHandler(event:MouseEvent):void {
                var dragInitiator:Image=Image(event.currentTarget);
                var ds:DragSource = new DragSource();
                ds.addData(dragInitiator, "img");
                DragManager.doDrag(dragInitiator, ds, event);
            // The dragEnter event handler for the VBox container
            // enables dropping.
            private function dragEnterHandler(event:DragEvent):void {
                if (event.dragSource.hasFormat("img")) {
                    DragManager.acceptDragDrop(VBox(event.currentTarget));
            // The dragDrop event handler for the VBox container
            // adds image to the target VBox
            private function dragDropHandler(event:DragEvent):void {
                 vbox.addChild(Image(event.dragInitiator));
                 // now update the List
                 imageList.push(Image(event.dragInitiator).source);
                 content.dataProvider = imageList;
        ]]>
    </mx:Script>
    <mx:VBox id="imgbox">
      <mx:Image id="myimg1" source="thebouv_bigger.gif" mouseMove="mouseMoveHandler(event);"/>
      <mx:Image id="myimg2" source="thebouv_bigger.gif" mouseMove="mouseMoveHandler(event);"/>
    </mx:VBox>
    <mx:VBox width="400" height="200"
         id="vbox"
         backgroundColor="#c0c0c0"
         dragEnter="dragEnterHandler(event)"
        dragDrop="dragDropHandler(event)">
        <mx:Label text="Drop here" />
        <mx:List id="content" dropEnabled="true"/>
    </mx:VBox>
</mx:Application>

Premiere newbie would appreciate and be very happy for some "get-started" help

Hi
QUESTION 1
I´m a complete newbie to premiere elements. I have imported some .mts files and some .avi files from my digital HD camera....when I create a project all available move clips appear in my project to become possible to drag into my project timeline ..BUT it´s only the .avi´s that are being presented with a "snapshot image" of the clip, all .mts movies are just presented with a blue-ish standard icon and this gives me a hard time knowing exactelly which clip I should pick without having to open the movie.
I hope this is just a setting or can someone tell me why i cant spot an "image" representation from the .mts file to makes it easier to spot what the content of the file/s are ?
QUESTION 2
Can someone give me some words about how to best structure moveies and images on the file system and also "inside" elements. I have two physical disks, one large 1TB disk and one smaller 80 GB SSD disk. How should I think here...all media on the "slower" disk and only the premiere software on teh faster SSd disk ?
QUESTION 3
In the end, after editing movies, of course I would be able to present the material in the best format possible which I guess is blue-ray...but to be able to create a project that will make it possible to output a blue ray format, I have understood that I need to apply some sort of add on to my premiere installation, is that correct and if so - how can I do this and also from where do I get this add-on/plugin ?
Based upon my camera files (.mts), I would like to use my PS3 to present the finished material, can you give me some sort of step by step guidance to how to setup the project. SHould I use the .mts files and edit these, or should I perhaps convert them to something else and then make my movie ?? As you can hear I´m pretty confused about all these formats and what to do to make the end result as good as it can get
I´m not really sure about my initial recording either..I have a Canon HF10 recorder, and as far as I know to be able to get teh best quality for my "raw" material I need to use a format selection called "FXP" on the camera ? Does someone know if this is the best to use (perhaps a stupid question since i guess this will differ a lot between camera models perhaps) ?
REALLY would appreciate help on these above questions to be able to know the starting point....
Hope to get some answers that will help me up & running in a while...
Thanks
Helmut

Hunt, thanks again for your answer, I will try to look into the organizer issue
in other ways, thinking about looking into the books suggested by Steve..
Something else I guess you can guide me through though is the different formats...jsut to mention, I basically dont know a thing about different movie formats, the only thing I know is that I have a HDdigital video recorder (Canon HF10) and that the files I copy across to my machine is of this .mts format...
should I make another setting on my video camera to get another format of the files I record and the files I then transfer to my computer..remember I´m a total newbie so when you mention that you should have converted to HDV - this does not say me anything unfortunatelly....could you in any easy watell me the basic things I should know....when I created my project in premiere I was asked to select what kind of project settings I wanted to have...for this selection a number of different formats was possible and I jsut picked one of them basically wthout knowing what I was doing.....kind of frustrating since I want to make the best qualty output from my movies and also the edited output from premiere...
Is it possible to give some easily understood intro and what small things I should always do......like when selecting the project "media" or what specific setting to check that are important on the video camera itself.....what is the best/highest quality format to work with/edit to get the best output from my finished medias etc
Apprecite your help a lot
Thanks
Helmut

Newbie question – frame and cells resizing issues

I am a newbie to ‘efficient web designing’. I
have done previously simpler works.
This is what I am trying to do this time. I am creating a
modular web site where I will be using only one design layout(800 x
600) and repeating that 3-4 times along the length of a single page
and also in all the other pages on the website ( using same layout
but different contents). The way I started is
1) Created a design layout in Photoshop
2) Created slices
3) Saved all sliced images in image folder
4) Created one large table 800x600 (size of a single layout
module) in dreamweaver
5) Created nested tables inside the main table, (based upon
different cell divisions)
6) Created cells in the tables corresponding to slice layout
in the photoshop
7) Inserted the sliced images in the corresponding cells to
recreate my photosop layout in dreamweaver.
8) The issue that I am having is that the cells are not
getting to be the size of the images.
SO HOW DO I MAKE MY CELLS FIT MY IMAGES. I tried putting the
size of my sliced images in the property box of the cells but the
cells just won’t become of that size. What is stopping them?
What could I be doing wrong? Is my working method appropriate for
what I want to achieve?
Any help would be appreciated.

Not really sure what you are trying to achieve... but
creating an 800x600
web page with Photoshop sliced images is not "efficient we
designing"
Everyone sets the size of their web browsers to a differant
size depending
on taste, visual accuity and the task at hand. Table cells
are simply
elastic containers. Think of them like a baloon. Small when
you take it
out of the bag but potentially really big with enough hot
air.
A cell will expand to fit whatever you put into it, but it
starts out small.
If you put a 200x200 slice of image as a background, you need
to somehow set
the size of the cell to 200x200, but if you put too much text
in the cell,
it will grow larger than 200x200 and leave your background
either stranded
with gaps around it or tiled and repeating itself.
If you put the slices directly into the cells, make sure you
have all
padding, cell spacing, and margins set to 0. Now, you won't
be able you put
text over the image but you could use hot spots or just
direct links from
the image.
Photoshop is an image editing program originally created for
print
applications. What you need to
consider is creating you web site in a flexible format and
augmenting your
design with images editied in Photoshop.
Best idea is get some books on html and css and learn what
you can about web
design, then add your graphics.
"yamirb" <[email protected]> wrote in
message
news:[email protected]...
>I am a newbie to ?efficient web designing?. I have done
previously simpler
> works.
> This is what I am trying to do this time. I am creating
a modular web site
> where I will be using only one design layout(800 x 600)
and repeating that
> 3-4
> times along the length of a single page and also in all
the other pages on
> the
> website ( using same layout but different contents). The
way I started is
> 1) Created a design layout in Photoshop
> 2) Created slices
> 3) Saved all sliced images in image folder
> 4) Created one large table 800x600 (size of a single
layout module) in
> dreamweaver
> 5) Created nested tables inside the main table, (based
upon different cell
> divisions)
> 6) Created cells in the tables corresponding to slice
layout in the
> photoshop
> 7) Inserted the sliced images in the corresponding cells
to recreate my
> photosop layout in dreamweaver.
> 8) The issue that I am having is that the cells are not
getting to be the
> size
> of the images.
>
> SO HOW DO I MAKE MY CELLS FIT MY IMAGES. I tried putting
the size of my
> sliced
> images in the property box of the cells but the cells
just won?t become of
> that
> size. What is stopping them? What could I be doing
wrong? Is my working
> method
> appropriate for what I want to achieve?
>
> Any help would be appreciated.
>
>

JRE 1.4.0 and Java3d

Hello everybody!
I've installed in my computer (win 98) every jre since the jre1.1.4. So, i've desinstalled them, in order to put in the 1.4.0. But when i try to install java3d, it tells me that it can't find java vm, others errors have appeared always concerning the java vm. Is anybody could help me.
Many thanks.

I'm using 1.4.0 with OpenGL version of Java3d v. 1.3beta 1. But I only use it on NT 4.0, Win2K and WinXP.
I've never had a problem with the Java3D v 1.3Beta1 installer finding the Java2 SDK 1.4. You have to make sure you've downloaded java3d-1_3-beta1-win-opengl-sdk.exe, vice ..rt.exe.
I've been able to install earlier versions of J3D (1.2.1_03...1.2.1) with SDK1.4, but I've had trouble with performance and various crashes.
Can't comment on Win98 specifically. Sorry.

Newbie: Time-capsule and existing Netgear 834GT

I have a Netgear 834GT supplied by my ISP but the firmware has been tweaked so that you cannot see the username and password it attaches to the internet as. The ISP T&Cs state that you must use their equipment to attach to the internet so using the time capsule to connect is not an option.
I would like to use the time-capsule to backup my iMac to and use it for the iMAC to connect to the internet through it but via the Netgear 834GT (manually for now until I pluck up the courage to change to leopard!). I am hoping someone can help a newbie who does not understand how to connect these two to make it work, can anyone help? Does it have to be cabled or wireless?
isp->netgear->time-capsule->iMac is how I see the connection working with cables between everything except to the iMac.
Thanks for taking the time to read my question.
Andy
Message was edited by: AndyDUK

AndyDUK wrote:
I have a Netgear 834GT supplied by my ISP but the firmware has been tweaked so that you cannot see the username and password it attaches to the internet as. The ISP T&Cs state that you must use their equipment to attach to the internet so using the time capsule to connect is not an option.
It's also not an option because Time Capsule does not have an integrated PPPoA DSL modem.
I would like to use the time-capsule to backup my iMac to and use it for the iMAC to connect to the internet through it but via the Netgear 834GT (manually for now until I pluck up the courage to change to leopard!). I am hoping someone can help a newbie who does not understand how to connect these two to make it work, can anyone help? Does it have to be cabled or wireless?
Either, just ensure that the Time Capsule is configured as a bridge ie not distribute IP addresses.
isp->netgear->time-capsule->iMac is how I see the connection working with cables between everything except to the iMac.
That will be fine.
Thanks for taking the time to read my question.
Andy
Message was edited by: AndyDUK

Combining java2d and java3d

I want to make a shape in java3d (a cube, let's say) and use java2d to place graphics on the surfaces of the cube (I already have a body of code to do the 2d drawing that I don't want to convert to java3d). Is there a way to do this?

You mean that you loaded image thru J2D and now you want to pass the file to J3D? I think you can do that but it would be simpler to use texture loader provided by J3D API.

[Solved] Programing Newbie Tools,Help and more.

Hello
I want to programming in C++ and Pascal language.
I completly Newbie.
And here's my question's:
1.What I need tools,program's?
2.Where to start?
I search repo for C but there's too much packages and I search on forum too but no hits for C++.
Thank's for help,advice,anything
Last edited by SpeedVin (2009-08-14 15:20:02)

SpeedVin wrote:Ok now I learn something about C++ and I have IDE - Geany.
I think that I should write something but what?
Do you have some proposition's for me , and something with guide
For now I wat try only programming in C++
Although this is not much of a suggestion, but in conjunction with whatever book or resource you decide to use, I would start off trying to adapt the programs that you are introduced to. Change things within the sample programs in your book and try to incorporate things that you have learned earlier. For example, if you are presented with a program that outputs multiples of 12 to an output file, try to change it so that the user can input any number they wish interactively, without having to recompile the code, and obtain a file containing the multiples of this number. You could even change the file name depending on the number the user enters.
Start simple and work your way up. This way the basics will stay in your head while you tackle more advanced concepts, and it will hopefully make the task of learning C++ more interesting. It's how I learnt anyway...
Hope that helps.

Newbie - x3d (/VRML) and Java3d.....

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