[Bryan Gabric]

I'm having an issue with the ReadingComplete function. If I load a very small file i have no troubles or if i my modelLoaded function after the model has loaded everything works great. However when i use the ReadingComplete function it seem to run the function before everything has loaded. Have I done something wrong?

MainWindow.xaml.cs

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

using System.IO;
using System.Windows.Media.Media3D;
using System.Windows.Threading;
using Ab3d;

namespace Simple_3ds_loading
{
    public partial class MainWindow : Window
    {

         // spin timer
        private DispatcherTimer dTimer;
        private int count;
        
        Ab3d.Reader3ds newReader3ds;
        Model3DGroup modelGroup;

        //transforms
        Transform3DGroup myTransform3DGroup = new Transform3DGroup();
        ScaleTransform3D myScaleTransform3D = new ScaleTransform3D();
        RotateTransform3D myRotateTransform3D = new RotateTransform3D();
        AxisAngleRotation3D myAxisAngleRotation3d = new AxisAngleRotation3D();

        //camra and light
        PerspectiveCamera myPCamera = new PerspectiveCamera();
        DirectionalLight myDirectionalLight = new DirectionalLight();

        public MainWindow()
        {  
            InitializeComponent();
        }

        private void myPageLoaded(object sender, EventArgs e)
        {
            loadModel();
        }

        void loadModel()
        {
            //bring up the choose file dialog
            Microsoft.Win32.OpenFileDialog loadWho = new Microsoft.Win32.OpenFileDialog();
            loadWho.Filter = "3-D files (.3ds)|*.3ds";
            //loadWho.FilterIndex = 0;
            Nullable<bool> result = loadWho.ShowDialog(this);
            if (result == true)
            {
                newReader3ds = new Ab3d.Reader3ds();
                newReader3ds.ThrowMissingTextureException = true;
                newReader3ds.ReadingComplete += new EventHandler(newReader3ds_ReadingComplete);

                Console.WriteLine("--");
                Console.WriteLine(loadWho.FileName);

                try
                {
                    modelGroup = newReader3ds.ReadFile(loadWho.FileName, Viewport1);
                }
                catch (Reader3ds.MissingTextureException f)
                {
                    MessageBox.Show("Missing texture: " + f.MissingTextureFileName);
                    newReader3ds.ThrowMissingTextureException = false;
                    modelGroup = newReader3ds.ReadFile(loadWho.FileName, Viewport1);
                }
              

            }
            else
            {
                //must load a file
                loadModel();
            }
        }

        void OnClick1(object sender, RoutedEventArgs e)
        {
            Console.WriteLine("pressed");
            modelLoaded();
        }


        private void newReader3ds_ReadingComplete(Object sender, EventArgs e)
        {
            Console.WriteLine("we think the model is finished loading");

            //modelLoaded();
        }


        private void modelLoaded()
        {
            //Set camera values.
            myPCamera = (Viewport1.Camera as PerspectiveCamera);
            //myPCamera.FarPlaneDistance = 5000;
            //myPCamera.NearPlaneDistance = 1;
            myPCamera.FieldOfView = 60;
            myPCamera.Position = new Point3D(0, 60, 300);
            myPCamera.LookDirection = new Vector3D(0, -.2, -1);
            myPCamera.UpDirection = new Vector3D(0, 1, 0);

            // Directional light values.
            myDirectionalLight.Color = Colors.White;
            myDirectionalLight.Direction = new Vector3D(0, -1, 0);
            modelGroup.Children.Add(myDirectionalLight);

            //get bounds
            Rect3D objectBounds = modelGroup.Bounds;

            //deside how big to make it.
            double resizePer = (300 / objectBounds.SizeX);
            double resizePerY = (300 / objectBounds.SizeY);
            double resizePerZ = (300 / objectBounds.SizeZ);
            if (resizePerY < resizePer)
            {
                resizePer = resizePerY;
            }
            if (resizePerZ < resizePer)
            {
                resizePer = resizePerZ;
            }

            //set the size
            myScaleTransform3D.ScaleX = resizePer;
            myScaleTransform3D.ScaleY = resizePer;
            myScaleTransform3D.ScaleZ = resizePer;
            myTransform3DGroup.Children.Add(myScaleTransform3D);

            // Create a transformation that i can use to do some rotating.
            myAxisAngleRotation3d.Axis = new Vector3D(0, 3, 0);
            myAxisAngleRotation3d.Angle = 0;
            myRotateTransform3D.Rotation = myAxisAngleRotation3d;
            myTransform3DGroup.Children.Add(myRotateTransform3D);
            modelGroup.Transform = myTransform3DGroup;

            //start the timer to give us some spinning...for fun.
            count = 100;
            dTimer = new DispatcherTimer();
            dTimer.Interval = new TimeSpan(100000);
            dTimer.Tick += new EventHandler(dTimer_Tick);
            dTimer.Start();        
        }
    
        void dTimer_Tick(object sender, EventArgs e)
        {
            count++;
            if (count > 660)
            {
                count = 100;
            }
            if (count > 300)
            {
                //and this makes it spin.
                myAxisAngleRotation3d.Angle = (count-300)*-1;

            }

        }

    }
}

MainWindow.xaml

Code:

<Window x:Class="Simple_3ds_loading.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="600" Width="800"
        Loaded="myPageLoaded">
    <Grid>
        <Viewport3D Name="Viewport1" ClipToBounds="True"></Viewport3D>
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="691,526,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="OnClick1" ClickMode="Press"/>
    </Grid>
</Window>

thanks,
Bryan