public void DrawCenterLines(TsPart tsPart, TsView tsView)
{
double scale = tsView.scale;
double delta = 2 * scale;
Point o = tsPart.origin;
CoordinateSystem partCS = tsPart.partCS;
double width = tsPart.width;
double height = tsPart.height;
double length = tsPart.length;
var x = new Point(o);
var y = new Point(o);
var z = new Point(o);
var nx = new Point(o);
var ny = new Point(o);
var nz = new Point(o);
Vector rX = Extensions.RoundVector(partCS.AxisX.GetNormal()) * length * 0.5;
Vector rY = Extensions.RoundVector(partCS.AxisY.GetNormal()) * height * 0.5;
Vector rZ =
Extensions.RoundVector(Vector.Cross(partCS.AxisX, partCS.AxisY).GetNormal()) * width * 0.5;
rX = Extensions.ExtendVector(rX, delta);
rY = Extensions.ExtendVector(rY, delta);
rZ = Extensions.ExtendVector(rZ, delta);
Vector nrX = (-1) * rX;
Vector nrY = (-1) * rY;
Vector nrZ = (-1) * rZ;
x.Translate(rX.X, rX.Y, rX.Z);
y.Translate(rY.X, rY.Y, rY.Z);
z.Translate(rZ.X, rZ.Y, rZ.Z);
nx.Translate(nrX.X, nrX.Y, nrX.Z);
ny.Translate(nrY.X, nrY.Y, nrY.Z);
nz.Translate(nrZ.X, nrZ.Y, nrZ.Z);
ViewBase view = tsView._viewBase;
Inserter.InsertLine(view, nx, x);
Inserter.InsertLine(view, ny, y);
Inserter.InsertLine(view, nz, z);
}