private void OnGoClick(object sender, EventArgs e)
{
logBox.Items.Clear();
goButton.Enabled = false;
clearButton.Enabled = false;
var triangulator = new Delaunay(points);
triangulator.PointSelected += (o, pe) => {
selectedPoint = pe.SelectedPoint;
BeginInvoke(new Action(() => {
curX = (int)pe.SelectedPoint.X;
logBox.Items.Insert(0, String.Format(
"Point {0} selected ({1:#},{2:#})",
pe.SelectedPoint.Index,
pe.SelectedPoint.X,
pe.SelectedPoint.Y
));
canvas.Invalidate();
}));
Thread.Sleep(100);
};
EventHandler <TrianglesModifiedArgs> triEvent = (o, te) => {
tris = te.NewTriangles.ToList();
BeginInvoke(new Action(() => {
logBox.Items.Insert(0, String.Format(
"Triangles {0}: New count: {1}",
te.EventType,
te.NewTriangles.Count()
));
canvas.Invalidate();
}));
Thread.Sleep(100);
};
triangulator.CreatedTriangles += triEvent;
triangulator.RemovedTriangles += triEvent;
EventHandler <EdgeArgs> edgeEvent = (o, ee) => {
selectedEdge = ee.Edge;
BeginInvoke(new Action(() => {
logBox.Items.Insert(0, String.Format(
"Edge {0} between {1} and {2}",
ee.EventType,
ee.Edge.First.Index,
ee.Edge.Second.Index
));
canvas.Invalidate();
}));
Thread.Sleep(50);
};
triangulator.EdgeAdded += edgeEvent;
triangulator.EdgeRemoved += edgeEvent;
ThreadPool.QueueUserWorkItem(o => {
tris = triangulator.CalculateTriangles().ToList();
BeginInvoke(new Action(() => {
selectedEdge = null;
selectedPoint = null;
goButton.Enabled = true;
clearButton.Enabled = true;
canvas.Invalidate();
}));
});
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
base.OnUpdateFrame(e);
bool zInput = false, xInput = false;
float accel = 150.0f;
float maxVel = 700.0f;
float decel = 2000.0f;
if (Keyboard[Key.Up])
{
cameraVel.Z += accel;
zInput = true;
}
if (Keyboard[Key.Down])
{
cameraVel.Z -= accel;
zInput = true;
}
if (Keyboard[Key.Left])
{
cameraVel.X -= accel;
xInput = true;
}
if (Keyboard[Key.Right])
{
cameraVel.X += accel;
xInput = true;
}
if (Math.Abs(cameraVel.Z) > maxVel)
{
cameraVel.Z = Math.Sign(cameraVel.Z) * maxVel;
}
if (Math.Abs(cameraVel.X) > maxVel)
{
cameraVel.X = Math.Sign(cameraVel.X) * maxVel;
}
float decelMag = (float)(decel * e.Time);
if (!zInput)
{
cameraVel.Z -= Math.Sign(cameraVel.Z) * decelMag;
if (Math.Abs(cameraVel.Z) < decelMag)
{
cameraVel.Z = 0.0f;
}
}
if (!xInput)
{
cameraVel.X -= Math.Sign(cameraVel.X) * decelMag;
if (Math.Abs(cameraVel.X) < decelMag)
{
cameraVel.X = 0.0f;
}
}
if (xInput || zInput)
{
mainCam.MoveForward((float)(cameraVel.Z * e.Time));
mainCam.Strafe((float)(cameraVel.X * e.Time));
}
if (file != null && file.IsLoaded && firstLoad)
{
gui.UpdateObjectText("label", "Loaded LAS File" + Environment.NewLine + "Triangulating...");
verts = new Vertex[file.StoredPoints];
List <Point> points = new List <Point>(verts.Length);
for (int i = 0; i < verts.Length; i++)
{
LPoint point = file[(long)i];
points.Add(new Point(
(uint)i,
point.X,
point.Y));
verts[i] = new Vertex()
{
X = point.X,
Y = point.Z,
Z = point.Y
};
}
Thread thread = new Thread(() => {
var tri = new Delaunay(points);
tri.PointSelected += (o, p) => gui.UpdateObjectText("label", "Loaded LAS File" + Environment.NewLine + "Triangulating point " + p.PointNum.ToString());
Stopwatch sw = new Stopwatch();
sw.Start();
tris = (List <Triangle>)tri.CalculateTriangles();
sw.Stop();
elapsed = sw.ElapsedMilliseconds;
});
thread.IsBackground = true;
thread.Start();
firstLoad = false;
}
if (tris != null)
{
uint[] indices = Triangulate.TriangleListToIndexArray(tris);
GenerateNormals(verts, indices, true);
VertexBuffer buffer = new VertexBuffer(verts, indices);
this.points = new Geometry(BeginMode.Triangles, buffer);
gui.UpdateObjectText("label",
"Loaded LAS File" + Environment.NewLine +
"Filename: " + file.Filename + Environment.NewLine +
"Signature: " + file.Signature + Environment.NewLine +
"Total Points: " + file.NumPoints.ToString() + Environment.NewLine +
"Triangles: " + (buffer.NumIndices / 3).ToString() + Environment.NewLine +
"Triangulation Time: " + elapsed.ToString() + "ms");
tris = null;
verts = null;
}
}
