public virtual void Redo()
{
m_owner.P1 = HitUtil.PointOncircle(m_owner.Center, m_endValue, HitUtil.DegressToRadians(Angle1));
m_owner.P2 = HitUtil.PointOncircle(m_owner.Center, m_endValue, HitUtil.DegressToRadians(Angle2));
m_owner.P3 = HitUtil.PointOncircle(m_owner.Center, m_endValue, HitUtil.DegressToRadians(Angle3));
m_owner.Radius = m_endValue;
}
UnitPoint RadiusNodePoint(ICanvas canvas)
{
double r = Radius + canvas.ToUnit(8);
float angle = StartAngle + SweepAngle / 2;
return(HitUtil.PointOncircle(m_center, r, HitUtil.DegressToRadians(angle)));
}
private UnitPoint EndAngleNodePoint(ICanvas canvas)
{
try
{
double r = Radius + canvas.ToUnit(8);
return(HitUtil.PointOncircle(m_center, r, HitUtil.DegressToRadians(EndAngle)));
}
catch (Exception ex)
{ throw ex; }
}
public void UpdateCenterNodeFromAngles()
{
try
{
float angle = StartAngle + SweepAngle / 2;
P2 = HitUtil.PointOncircle(m_center, m_radius, HitUtil.DegressToRadians(angle));
}
catch (Exception ex)
{ throw ex; }
}
private UnitPoint RadiusNodePoint(ICanvas canvas)
{
try
{
double r = Radius + canvas.ToUnit(8);
float angle = StartAngle + SweepAngle / 2;
return(HitUtil.PointOncircle(m_center, r, HitUtil.DegressToRadians(angle)));
}
catch (Exception ex)
{ throw ex; }
}
public virtual void Finish()
{
//float Angle1 = (float)HitUtil.RadiansToDegrees(HitUtil.LineAngleR(m_owner.Center,m_owner.P1, 0));
//float Angle2 = (float)HitUtil.RadiansToDegrees(HitUtil.LineAngleR(m_owner.Center, m_owner.P2, 0));
//float Angle3 = (float)HitUtil.RadiansToDegrees(HitUtil.LineAngleR(m_owner.Center, m_owner.P3, 0));
//Console.WriteLine(Angle1);
m_owner.P1 = HitUtil.PointOncircle(m_clone.Center, m_clone.Radius, HitUtil.DegressToRadians(Angle1));
m_owner.P2 = HitUtil.PointOncircle(m_clone.Center, m_clone.Radius, HitUtil.DegressToRadians(Angle2));
m_owner.P3 = HitUtil.PointOncircle(m_clone.Center, m_clone.Radius, HitUtil.DegressToRadians(Angle3));
m_endValue = m_clone.Radius;
m_owner.Radius = m_clone.Radius;
m_owner.Selected = true;
m_clone = null;
}
/*
* UnitPoint GetPoint()
* {
* if (m_curPoint == Arc3Point.eCurrentPoint.p1)
* return m_clone.P1;
* if (m_curPoint == Arc3Point.eCurrentPoint.p2)
* return m_clone.P2;
* if (m_curPoint == Arc3Point.eCurrentPoint.p3)
* return m_clone.P3;
* if (m_curPoint == Arc3Point.eCurrentPoint.startangle)
* return m_clone.P1;
* if (m_curPoint == Arc3Point.eCurrentPoint.endangle)
* return m_clone.P3;
* if (m_curPoint == Arc3Point.eCurrentPoint.radius)
* return m_clone.P2;
* return UnitPoint.Empty;
* }
* */
void SetPoint(Arc3Point arc, UnitPoint pos)
{
if (m_curPoint == Arc3Point.eCurrentPoint.p1)
{
arc.P1 = pos;
}
if (m_curPoint == Arc3Point.eCurrentPoint.p2)
{
arc.P2 = pos;
}
if (m_curPoint == Arc3Point.eCurrentPoint.p3)
{
arc.P3 = pos;
}
double angleToRound = 0;
if (Control.ModifierKeys == Keys.Control)
{
angleToRound = HitUtil.DegressToRadians(45);
}
double angleR = HitUtil.LineAngleR(arc.Center, pos, angleToRound);
if (m_curPoint == Arc3Point.eCurrentPoint.startangle)
{
arc.P1 = HitUtil.PointOncircle(arc.Center, arc.Radius, angleR);
}
if (m_curPoint == Arc3Point.eCurrentPoint.endangle)
{
arc.P3 = HitUtil.PointOncircle(arc.Center, arc.Radius, angleR);
}
if (m_curPoint == Arc3Point.eCurrentPoint.radius)
{
double radius = HitUtil.Distance(arc.Center, pos);
arc.P1 = HitUtil.PointOncircle(arc.Center, radius, HitUtil.DegressToRadians(arc.StartAngle));
arc.P2 = pos;
arc.P3 = HitUtil.PointOncircle(arc.Center, radius, HitUtil.DegressToRadians(arc.EndAngle));
}
arc.UpdateArcFrom3Points();
if ((m_curPoint == Arc3Point.eCurrentPoint.startangle) || (m_curPoint == Arc3Point.eCurrentPoint.endangle))
{
arc.UpdateCenterNodeFromAngles();
}
}
UnitPoint EndAngleNodePoint(ICanvas canvas)
{
double r = Radius + canvas.ToUnit(8);
return(HitUtil.PointOncircle(m_center, r, HitUtil.DegressToRadians(EndAngle)));
}
/// <summary>
/// 根据角度来更新圆弧的中点
/// </summary>
public void UpdateCenterNodeFromAngles()
{
float angle = StartAngle + SweepAngle / 2;
P2 = HitUtil.PointOncircle(m_center, m_radius, HitUtil.DegressToRadians(angle));
}
protected UnitPoint AnglePoint(float angle)
{
return(HitUtil.PointOncircle(m_center, m_radius, HitUtil.DegressToRadians(angle)));
}
public virtual ISnapPoint SnapPoint(ICanvas canvas, UnitPoint point, List <IDrawObject> otherobj, Type[] runningsnaptypes, Type usersnaptype)
{
float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
if (runningsnaptypes != null)
{
foreach (Type snaptype in runningsnaptypes)
{
if (snaptype == typeof(QuadrantSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 90);
if (p != UnitPoint.Empty && HitUtil.PointInPoint(p, point, thWidth))
{
return(new QuadrantSnapPoint(canvas, this, p));
}
}
if (snaptype == typeof(DivisionSnapPoint))
{
double angle = 360 / 8;
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, angle);
if (p != UnitPoint.Empty && HitUtil.PointInPoint(p, point, thWidth))
{
return(new DivisionSnapPoint(canvas, this, p));
}
}
if (snaptype == typeof(CenterSnapPoint))
{
if (HitUtil.PointInPoint(m_center, point, thWidth))
{
return(new CenterSnapPoint(canvas, this, m_center));
}
}
if (snaptype == typeof(VertextSnapPoint))
{
if (HitUtil.PointInPoint(HitUtil.PointOncircle(m_center, m_radius, 0), point, thWidth))
{
return(new VertextSnapPoint(canvas, this, HitUtil.PointOncircle(m_center, m_radius, 0)));
}
if (HitUtil.PointInPoint(HitUtil.PointOncircle(m_center, m_radius, 360), point, thWidth))
{
return(new VertextSnapPoint(canvas, this, HitUtil.PointOncircle(m_center, m_radius, 360)));
}
}
}
return(null);
}
if (usersnaptype == typeof(NearestSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 0);
if (p != UnitPoint.Empty)
{
return(new NearestSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(PerpendicularSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 0);
if (p != UnitPoint.Empty)
{
return(new PerpendicularSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(QuadrantSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 90);
if (p != UnitPoint.Empty)
{
return(new QuadrantSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(DivisionSnapPoint))
{
double angle = 360 / 8;
UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, angle);
if (p != UnitPoint.Empty)
{
return(new DivisionSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(TangentSnapPoint))
{
IDrawObject drawingObject = canvas.CurrentObject;
UnitPoint p = UnitPoint.Empty;
if (drawingObject is LineEdit)
{
UnitPoint mousepoint = point;
point = ((LineEdit)drawingObject).P1;
UnitPoint p1 = HitUtil.TangentPointOnCircle(m_center, m_radius, point, false);
UnitPoint p2 = HitUtil.TangentPointOnCircle(m_center, m_radius, point, true);
double d1 = HitUtil.Distance(mousepoint, p1);
double d2 = HitUtil.Distance(mousepoint, p2);
if (d1 <= d2)
{
return(new TangentSnapPoint(canvas, this, p1));
}
else
{
return(new TangentSnapPoint(canvas, this, p2));
}
}
//if (p != PointF.Empty)
return(new TangentSnapPoint(canvas, this, p));
}
if (usersnaptype == typeof(CenterSnapPoint))
{
return(new CenterSnapPoint(canvas, this, m_center));
}
return(null);
// float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
// if (runningsnaptypes != null)
// {
// foreach (Type snaptype in runningsnaptypes)
// {
// /*
//if (snaptype == typeof(QuadrantSnapPoint))
//{
// UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 90);
// if (p != UnitPoint.Empty && HitUtil.PointInPoint(p, point, thWidth))
// return new QuadrantSnapPoint(canvas, this, p);
//}
//if (snaptype == typeof(CenterSnapPoint))
//{
// if (HitUtil.PointInPoint(m_center, point, thWidth))
// return new CenterSnapPoint(canvas, this, m_center);
//}
// * */
// if (snaptype == typeof(VertextSnapPoint))
// {
// if (HitUtil.PointInPoint(P1, point, thWidth))
// return new VertextSnapPoint(canvas, this, P1);
// if (HitUtil.PointInPoint(P3, point, thWidth))
// return new VertextSnapPoint(canvas, this, P3);
// }
// }
// return null;
// }
// if (usersnaptype == typeof(NearestSnapPoint))
// {
// UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 0);
// if (p != UnitPoint.Empty)
// return new NearestSnapPoint(canvas, this, p);
// }
// if (usersnaptype == typeof(PerpendicularSnapPoint))
// {
// UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 0);
// if (p != UnitPoint.Empty)
// return new PerpendicularSnapPoint(canvas, this, p);
// }
// if (usersnaptype == typeof(QuadrantSnapPoint))
// {
// UnitPoint p = HitUtil.NearestPointOnCircle(m_center, m_radius, point, 90);
// if (p != UnitPoint.Empty)
// return new QuadrantSnapPoint(canvas, this, p);
// }
// if (usersnaptype == typeof(TangentSnapPoint))
// {
// IDrawObject drawingObject = canvas.CurrentObject;
// UnitPoint p = UnitPoint.Empty;
// if (drawingObject is LineEdit)
// {
// UnitPoint mousepoint = point;
// point = ((LineEdit)drawingObject).P1;
// UnitPoint p1 = HitUtil.TangentPointOnCircle(m_center, m_radius, point, false);
// UnitPoint p2 = HitUtil.TangentPointOnCircle(m_center, m_radius, point, true);
// double d1 = HitUtil.Distance(mousepoint, p1);
// double d2 = HitUtil.Distance(mousepoint, p2);
// if (d1 <= d2)
// return new TangentSnapPoint(canvas, this, p1);
// else
// return new TangentSnapPoint(canvas, this, p2);
// }
// //if (p != PointF.Empty)
// return new TangentSnapPoint(canvas, this, p);
// }
// if (usersnaptype == typeof(CenterSnapPoint))
// {
// return new CenterSnapPoint(canvas, this, m_center);
// }
// return null;
}