private void surfaceToolStripMenuItem_Click(object sender, EventArgs e)
{
Platform.LineStyle lineStyle = new Platform.LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.RED);
var points = new System.Collections.Generic.List<Vector3>();
points.Add(new Vector3(0, 0, 0));
points.Add(new Vector3(50, 0, 0));
points.Add(new Vector3(100, 0, 0));
points.Add(new Vector3(0, 50, 0));
points.Add(new Vector3(50, 50, 5));
points.Add(new Vector3(100, 50, -5));
points.Add(new Vector3(0, 150, 5));
points.Add(new Vector3(50, 150, -5));
points.Add(new Vector3(100, 150, 0));
TopoShape face = GlobalInstance.BrepTools.MakeSurfaceFromPoints(points, 3, 3);
renderView.ShowGeometry(face, 101);
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
float ufirst = surface.FirstUParameter();
float uLarst = surface.LastUParameter();
float vfirst = surface.FirstVParameter();
float vLast = surface.LastVParameter();
float ustep = (uLarst - ufirst) * 0.1f;
float vstep = (vLast - vfirst) * 0.1f;
for(float ii=ufirst; ii<=uLarst; ii+= ustep)
for (float jj = vfirst; jj <= vLast; jj += vstep)
{
var data = surface.D1(ii, jj);
Vector3 pos = data[0];
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dir = dirV.CrossProduct(dirU);
dir.Normalize();
{
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir*10.0f);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle);
}
}
TopoShapeProperty property = new TopoShapeProperty();
property.SetShape(face);
float area = property.SurfaceArea();
TextNode text = new TextNode();
text.SetText(String.Format("Surface Area: {0}", area));
text.SetPosition(new Vector3(100, 100, 0));
renderView.SceneManager.ClearNodes2d();
renderView.SceneManager.AddNode2d(text);
renderView.RequestDraw();
}
private void curveToolStripMenuItem_Click(object sender, EventArgs e)
{
renderView.SetStandardView(EnumStandardView.SV_Top);
Platform.LineStyle lineStyle = new Platform.LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.BLUE);
Platform.LineStyle lineStyle2 = new Platform.LineStyle();
lineStyle2.SetLineWidth(0.5f);
lineStyle2.SetColor(ColorValue.GREEN);
Platform.TopoShape arc = GlobalInstance.BrepTools.MakeEllipseArc(Vector3.ZERO, 100, 50, 45, 270, Vector3.UNIT_Z);
renderView.ShowGeometry(arc, 100);
{
GeomCurve curve = new GeomCurve();
curve.Initialize(arc);
float paramStart = curve.FirstParameter();
float paramEnd = curve.LastParameter();
float step = (paramEnd - paramStart) * 0.1f;
for (float uu = paramStart; uu <= paramEnd; uu += step)
{
Vector3 dir = curve.DN(uu, 1);
Vector3 pos = curve.Value(uu);
// 切线
{
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle);
}
// 法线
{
Vector3 dirN = dir.CrossProduct(Vector3.UNIT_Z);
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dirN);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle2);
}
}
}
TopoShapeProperty property = new TopoShapeProperty();
property.SetShape(arc);
float len = property.EdgeLength();
TextNode text = new TextNode();
text.SetText(String.Format("Arc Length: {0}", len));
text.SetPosition(new Vector3(100, 100, 0));
renderView.SceneManager.ClearNodes2d();
renderView.SceneManager.AddNode2d(text);
renderView.RequestDraw();
}