protected override bool WorldDraw(WorldDraw draw)
{
//draw.Geometry.Draw(myline);
for (int i = 0; i < pts.Count; i++)
{
if (mypl.NumberOfVertices > i)
{
mypl.SetPointAt(i, pts[i]);
}
else
{
mypl.AddVertexAt(i, pts[i], 0, 0, 0);
}
}
while (pts.Count < mypl.NumberOfVertices)
{
mypl.RemoveVertexAt(pts.Count - 1);
}
draw.Geometry.Draw(mypl);
return(true);
}
public void Cmd2()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
Autodesk.AutoCAD.DatabaseServices.Polyline pyLine = new Autodesk.AutoCAD.DatabaseServices.Polyline();
var bsPointRes = ed.GetPoint(new PromptPointOptions("\n请输入圆心"));
if (bsPointRes.Status == PromptStatus.OK)
{
pyLine.AddVertexAt(pyLine.NumberOfVertices, new Point2d(bsPointRes.Value.X, bsPointRes.Value.Y), 0, 0, 0);
var jigPtOpts = new JigPromptPointOptions();
var dimAlign = new AlignedDimension();
var donut = new JigHelper();
donut.SetEntities(new Entity[] { pyLine, dimAlign });
for (int i = 1; i < int.MaxValue; i++)
{
donut.PrapareForNextInput(jigPtOpts, "\n请输入下一个点");
donut.SetUpdate(jig =>
{
if (pyLine.NumberOfVertices == i)
{
pyLine.AddVertexAt(pyLine.NumberOfVertices, new Point2d(jig.Point.X, jig.Point.Y), 0, 0, 0);
}
else
{
pyLine.SetPointAt(i, new Point2d(jig.Point.X, jig.Point.Y));
}
Point3d pt1 = pyLine.GetPoint3dAt(i - 1);
Point3d pt2 = pyLine.GetPoint3dAt(i);
var vec3d = pt1 - pt2;
var vec3d2 = vec3d.RotateBy(Math.PI / 2, Vector3d.ZAxis);
Point3d cPoint3d = new Point3d((pt1.X + pt2.X) / 2, (pt1.Y + pt2.Y) / 2, 0);
dimAlign.XLine1Point = pt1;
dimAlign.XLine2Point = pt2;
dimAlign.DimLinePoint = cPoint3d + vec3d2 * 0.5;
dimAlign.DimensionText = null;
dimAlign.DimensionStyle = ObjectId.Null;
});
dimAlign.ToSpace();
dimAlign = new AlignedDimension();
var status = donut.Drag();
if (status == PromptStatus.Cancel)
{
break;
}
else if (status != PromptStatus.OK)
{
return;
}
}
pyLine.ToSpace();
}
}
protected override SamplerStatus Sampler(JigPrompts prompts)
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
Matrix3d mt = ed.CurrentUserCoordinateSystem;
JigPromptPointOptions optJigPoint = new JigPromptPointOptions("\n请指定矩形的另一角点")
{
Cursor = CursorType.Crosshair,
UserInputControls = UserInputControls.Accept3dCoordinates | UserInputControls.NoZeroResponseAccepted | UserInputControls.NoNegativeResponseAccepted,
BasePoint = m_Pt1.TransformBy(mt),
UseBasePoint = true
};
PromptPointResult resJigPoint = prompts.AcquirePoint(optJigPoint);
Point3d tempPt = resJigPoint.Value;
if (resJigPoint.Status == PromptStatus.Cancel)
{
return(SamplerStatus.Cancel);
}
if (m_Pt2 != tempPt)
{
m_Pt2 = tempPt;
Point3d ucsPt2 = m_Pt2.TransformBy(mt.Inverse());
m_Polyline.Normal = Vector3d.ZAxis;
m_Polyline.Elevation = 0.0;
m_Polyline.SetPointAt(0, new Point2d(m_Pt1.X, m_Pt1.Y));
m_Polyline.SetPointAt(1, new Point2d(ucsPt2.X, m_Pt1.Y));
m_Polyline.SetPointAt(2, new Point2d(ucsPt2.X, ucsPt2.Y));
m_Polyline.SetPointAt(3, new Point2d(m_Pt1.X, ucsPt2.Y));
m_Polyline.TransformBy(mt);
Point3d cenPt = GeTools.MidPoint(m_Pt1.TransformBy(mt), m_Pt2);
Point3d majorPt = new Point3d(ucsPt2.X, m_Pt1.Y, 0);
Vector3d vecX = GeTools.MidPoint(majorPt, ucsPt2).TransformBy(mt) - cenPt;
try
{
if (Math.Abs(ucsPt2.X - m_Pt1.X) < 0.0000001 | Math.Abs(ucsPt2.Y - m_Pt1.Y) < 0.000001)
{
m_Ellipse = new Ellipse(Point3d.Origin, Vector3d.ZAxis, new Vector3d(0.00000001, 0, 0), 1.0, 0.0, 0.0);
}
else
{
double radiusRatio = Math.Abs((ucsPt2.X - m_Pt1.X) / (ucsPt2.Y - m_Pt1.Y));
if (radiusRatio < 1.0)
{
majorPt = new Point3d(m_Pt1.X, ucsPt2.Y, 0.0);
vecX = GeTools.MidPoint(majorPt, ucsPt2).TransformBy(mt) - cenPt;
}
else
{
radiusRatio = 1.0 / radiusRatio;
}
m_Ellipse.Set(cenPt, mt.CoordinateSystem3d.Zaxis, vecX, radiusRatio, 0, 2 * Math.PI);
}
}
catch { }
return(SamplerStatus.OK);
}
else
{
return(SamplerStatus.NoChange);
}
}