我在我的 wpf 应用程序中使用了 sharpgl，并且我有一个曲面图。问题是当我尝试将观察相机移开时，我的很多情节都消失了......我是opengl的新手，如何调整我的相机以便我可以从多个方面看到我的情节？
namespace SharpGLWPFApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
///this is a set of 29 by 121 arrays cant put all data here on stackoverflow
double[][] surface = new double[29][]
{new double[] { 0.157502594025719, 0.160975938019107, 0.168564003076642, 0.171284471913381, 0.174722441310675, 0.182467533566265, 0.190681891360462, 0.197452867532186, ..... }};
/// <summary>Initializes a new instance of the <see cref="MainWindow"/> class.</summary>
public MainWindow()
{
InitializeComponent();
}
/// <summary>
/// Handles the OpenGLDraw event of the openGLControl1 control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">The <see cref="SharpGL.SceneGraph.OpenGLEventArgs"/> instance containing the event data.</param>
private void openGLControl_OpenGLDraw(object sender, OpenGLEventArgs args)
{
// Get the OpenGL object.
OpenGL gl = openGLControl.OpenGL;
// Clear the color and depth buffer.
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
// Load the identity matrix.
gl.LoadIdentity();
// Rotate around the Y axis.
gl.Rotate(rotation, 0.0f, 1.0f, 0.0f);
// Nudge the rotation.
rotation += 3.0f;
float R = 0.3f;
float G = 0.2f;
float B = 0.1f;
gl.Translate(-10f, 0f, 0f);
gl.Begin(OpenGL.GL_TRIANGLES);
for (int x = 1; x < surface.GetUpperBound(0); ++x)
{
for (int y = 1; y < surface[0].GetUpperBound(0) + 1; ++y)
{
gl.Color(R, G, B);
double a = surface[x - 1][y - 1];
double b = surface[x][y - 1];
double c = surface[x][y];
double d = surface[x - 1][y];
// get four points on the surface (they form a quad)
gl.Vertex(x - 1, a, y - 1);
gl.Vertex(x, b, y - 1);
gl.Vertex(x, c, y);
// draw triangle abc
gl.Vertex(x - 1, a, y - 1);
gl.Vertex(x, c, y);
gl.Vertex(x - 1, d, y);
// draw triangle acd
R += y;
B += .0003f;
G += .0001f;
}
//R += .03f;
//B += .03f;
//G += .03f;
}
gl.End();
}
/// <summary>
/// Handles the OpenGLInitialized event of the openGLControl1 control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">The <see cref="SharpGL.SceneGraph.OpenGLEventArgs"/> instance containing the event data.</param>
private void openGLControl_OpenGLInitialized(object sender, OpenGLEventArgs args)
{
// TODO: Initialise OpenGL here.
// Get the OpenGL object.
OpenGL gl = openGLControl.OpenGL;
// Set the clear color.
gl.ClearColor(0, 0, 0, 0);
}
/// <summary>
/// Handles the Resized event of the openGLControl1 control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">The <see cref="SharpGL.SceneGraph.OpenGLEventArgs"/> instance containing the event data.</param>
private void openGLControl_Resized(object sender, OpenGLEventArgs args)
{
// TODO: Set the projection matrix here.
// Get the OpenGL object.
OpenGL gl = openGLControl.OpenGL;
// Set the projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
// Load the identity.
gl.LoadIdentity();
// Create a perspective transformation.
gl.Perspective(60.0f, (double)Width / (double)Height, 0.01, 100.0);
// Use the 'look at' helper function to position and aim the camera.
gl.LookAt(-105, 105, -105, 50, 0, 0, 0, 1, 0);
// Set the modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}
/// <summary>
/// The current rotation.
/// </summary>
private float rotation = 0.0f;
}
}