public void Create(RenderControl render)
{
// 随便构造些点
float offset = 10.0f;
for (int ii = 0; ii < 10; ++ii)
{
for (int jj = 0; jj < ii; ++jj)
{
mPoints.Add(new Vector3(jj * offset, 100, ii * offset));
}
}
mMotionTrail = new ParticleSceneNode((uint)mPoints.Count, ColorTable.Green, 3.0f);
mCurrentIdx = 0;
render.ShowSceneNode(mMotionTrail);
var lineMaterial = BasicMaterial.Create("myline");
lineMaterial.SetColor(ColorTable.Hex(0xFF0000));
var line = GeometryBuilder.CreateLine(Vector3.Zero, new Vector3(1, 0, 0));
mLineNode = new PrimitiveSceneNode(line, lineMaterial);
mLineNode.SetTransform(MakeTransform(mStart, mPoints[0]));
mLineNode.RequstUpdate();
render.ShowSceneNode(mLineNode);
}
public override void Run(RenderControl renderer)
{
var ellipse = SketchBuilder.MakeEllipse(GP.Origin(), 10, 5, GP.DX(), GP.DZ());
renderer.ShowShape(ellipse, Vector3.Blue);
ParametricCurve pc = new ParametricCurve(ellipse);
var paramsList = pc.SplitByUniformLength(1, 0.01);
uint itemCount = (uint)paramsList.Count;
var points = new ParticleSceneNode(itemCount, Vector3.Green, 5.0f);
var lines = new SegmentsSceneNode(itemCount, Vector3.Red, 2);
Random random = new Random();
for (int ii = 0; ii < paramsList.Count; ++ii)
{
var value = pc.D1(paramsList[ii]);
var pos = value.GetPoint();
var dir = value.GetVectors()[0];
var end = new GPnt(pos.XYZ().Added(dir.XYZ()));
lines.SetPositions((uint)ii, Vector3.From(pos), Vector3.From(end));
lines.SetColors((uint)ii, Vector3.Red, Vector3.From(random.NextDouble(), random.NextDouble(), random.NextDouble()));
points.SetPosition((uint)ii, Vector3.From(pos));
}
renderer.ShowSceneNode(points);
renderer.ShowSceneNode(lines);
}
public override void Run(RenderControl render)
{
var fileName = GetResourcePath("models/YONGSHENGDA_9998.igs");
var shape = ShapeIO.Open(fileName);
if (shape == null)
{
return;
}
var face = shape.FindChild(EnumTopoShapeType.Topo_FACE, 12);
var edges = face.GetChildren(EnumTopoShapeType.Topo_EDGE);
var wire = SketchBuilder.MakeWire(edges);
if (wire == null)
{
return;
}
var curve = new ParametricCurve();
curve.Initialize(wire);
var ulist = curve.SplitByUniformLength(1, 0.2);
var node = new ParticleSceneNode((uint)ulist.Count, ColorTable.Red, 2);
for (int ii = 0; ii < ulist.Count; ++ii)
{
node.SetPosition((uint)ii, Vector3.From(curve.Value(ulist[ii])));
}
node.UpdateBoundingBox();
render.ShowShape(wire, ColorTable.GoldEnrod);
render.ShowSceneNode(node);
}