public void lineRenderTeapot()
{
var lines = new List <List <(Vector2, Vector2, Color)> >();
var verts = ObjFileLoader.LoadVertsFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/teapot.obj"))
.Select(x => Vector4.Add(x, new Vector4(5, 5, 0, 0))).ToArray();
var tris = ObjFileLoader.LoadTrisFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/teapot.obj"));
var trilines = tris.SelectMany(x =>
new List <(Vector2, Vector2, Color)>()
{
(new Vector2(verts[x.vertIndexList[0] - 1].X * 50, verts[x.vertIndexList[0] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[1] - 1].X * 50, verts[x.vertIndexList[1] - 1].Y * 50), Color.White),
(new Vector2(verts[x.vertIndexList[1] - 1].X * 50, verts[x.vertIndexList[1] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[2] - 1].X * 50, verts[x.vertIndexList[2] - 1].Y * 50), Color.White),
(new Vector2(verts[x.vertIndexList[2] - 1].X * 50, verts[x.vertIndexList[2] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[0] - 1].X * 50, verts[x.vertIndexList[0] - 1].Y * 50), Color.White),
}
);
lines.Add(trilines.ToList());
var renderer = new LineRenderer2d(640, 480, lines);
var image = new ppmImage(640, 480, 255);
image.Colors = renderer.Render();
Assert.AreEqual(18702, image.Colors.Where(x => x == Color.White).Count());
System.IO.File.WriteAllBytes("../../../linetest_teapot.ppm", image.toByteArray());
}
public void lineRender2dsimpleLines()
{
var lines = new List <List <(Vector2, Vector2, Color)> >()
{
new List <(Vector2, Vector2, Color)> {
(new Vector2(13, 20), new Vector2(80, 40), Color.White),
(new Vector2(20, 13), new Vector2(40, 80), Color.White),
(new Vector2(80, 40), new Vector2(80, 480), Color.White),
(new Vector2(0, 0), new Vector2(320, 240), Color.White)
}
};
var renderer = new LineRenderer2d(640, 480, lines);
var image = new ppmImage(640, 480, 255);
image.Colors = renderer.Render();
Assert.AreEqual(930, image.Colors.Where(x => x == Color.White).Count());
System.IO.File.WriteAllBytes("../../../linetest.ppm", image.toByteArray());
}
public void LoadComplexOBJTestAsMesh2()
{ //scale and offset all verts.
//flip verts since image top is 0,0
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/knot3/knot3.obj"));
var tris = mesh.Triangles;
mesh.VertexData = mesh.VertexData.Select(x => Vector4.Multiply(x, new Vector4(1.0f, 1.0f, 1.0f, 1.0f)))
//scale and offset.
.Select(x => Vector4.Multiply(Vector4.Add(x, new Vector4(5, 5, 0, 0)), 120)).ToArray();
var verts = mesh.VertexData;
var lines = new List <List <(Vector2, Vector2, Color)> >();
var trilines = tris.SelectMany(x =>
new List <(Vector2, Vector2, Color)>()
{
(new Vector2(verts[x.vertIndexList[0] - 1].X, verts[x.vertIndexList[0] - 1].Y),
new Vector2(verts[x.vertIndexList[1] - 1].X, verts[x.vertIndexList[1] - 1].Y), Color.White),
(new Vector2(verts[x.vertIndexList[1] - 1].X, verts[x.vertIndexList[1] - 1].Y),
new Vector2(verts[x.vertIndexList[2] - 1].X, verts[x.vertIndexList[2] - 1].Y), Color.White),
(new Vector2(verts[x.vertIndexList[2] - 1].X, verts[x.vertIndexList[2] - 1].Y),
new Vector2(verts[x.vertIndexList[0] - 1].X, verts[x.vertIndexList[0] - 1].Y), Color.White),
}
);
lines.Add(trilines.ToList());
var renderer = new LineRenderer2d(1024, 768, lines);
var image = new ppmImage(1024, 768, 255);
image.Colors = renderer.Render();
Assert.AreEqual(38703, image.Colors.Where(x => x == Color.White).Count());
System.IO.File.WriteAllBytes("../../../objLoaderTest2.ppm", image.toByteArray());
}
public void lineRender2dArrayedCircle()
{
var lines = new List <List <(Vector2, Vector2, Color)> >();
var center = new Vector2(100, 300);
var points = Enumerable.Range(0, 360).Select(x =>
new Vector2(
(float)(center.X + 100 * Math.Cos(x * (Math.PI / 180.0))),
(float)(center.Y + 100 * Math.Sin(x * (Math.PI / 180.0))))
);
var pairs = points.Select(x => (center, x, Color.White));
lines.Add(pairs.ToList());
var renderer = new LineRenderer2d(640, 480, lines);
var image = new ppmImage(640, 480, 255);
image.Colors = renderer.Render();
Assert.AreEqual(24390, image.Colors.Where(x => x == Color.White).Count());
System.IO.File.WriteAllBytes("../../../linetest_circle.ppm", image.toByteArray());
}