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Program.cs
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Program.cs
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namespace example;
// example-0001
// random lines ( console program )
//
// - press and hold added keybinding 'space' to animate the scene
// - and left click to rotate the model
// - or wheel to zoom or middle button to pan
class Program
{
static void Main(string[] args)
{
InitAvalonia();
var w = GLWindow.Create();
w.GLModel.BuildModel = (glCtl, isInitial) =>
{
var glModel = glCtl.GLModel;
glModel.Clear();
var L = 100;
var rnd = new Random();
var N = 100;
// create line with different colors on from, to vertexes
{
var xLine = GLLine.PointV(Vector3.Zero, new Vector3(L, 0, 0), Color.White, Color.Red);
var yLine = GLLine.PointV(Vector3.Zero, new Vector3(0, L, 0), Color.White, Color.Green);
var zLine = GLLine.PointV(Vector3.Zero, new Vector3(0, 0, L), Color.White, Color.Blue);
glModel.AddFigure(new GLLineFigure(xLine, yLine, zLine));
}
var lines = new List<GLLine>();
for (int i = 0; i < N; ++i)
{
var rnds = Enumerable.Range(0, 6).Select(r => rnd.NextSingle()).ToList();
var color = Color.FromArgb((byte)(rnds[0] * 255), (byte)(rnds[1] * 255), (byte)(rnds[2] * 255));
// create random line with same color on from, to vertexes
var line = GLLine.FromTo(
new Vector3(rnds[0] * L, rnds[1] * L, rnds[2] * L),
new Vector3(rnds[3] * L, rnds[4] * L, rnds[5] * L),
color);
lines.Add(line);
}
glModel.AddFigure(new GLLineFigure(lines));
if (isInitial)
glCtl.CameraView(CameraViewType.Top);
};
// console key handler
w.KeyDown += (sender, e) =>
{
if (e.Key == Avalonia.Input.Key.Space)
{
// the window could contains more GLControl by the splitting behavior
// w.FocusedControl is the actual focused
// call the Invalidate with model rebuild ( note that normally isn't required to rebuild the model
// but in this example we want to regenerate the entire model so RebuildModelAndRedraw will imply
// a call to the defined GLModel.BuildModel )
w.FocusedControl?.Invalidate(InvalidateEnum.RebuildModelAndRedraw);
}
};
w.ShowSync();
}
}