/// <summary>
/// 调整曲线 刻度(直接修改)
/// </summary>
protected void AdjustLines()
{
if (!IsHaveLine)
{
return;
}
double xeveryone = (XLimt.Vec2 - XLimt.Vec1) / (_xTip.Count - 1);
double yeveryone = (YLimt.Vec2 - YLimt.Vec1) / (_yTip.Count - 1);
_everyDisForPiexl.Vec1 = (XLimt.Vec2 - XLimt.Vec1) / Draw.Width;
_everyDisForPiexl.Vec2 = (YLimt.Vec2 - YLimt.Vec1) / Draw.Height;
double cur = 0;
///计算偏移量
VectorChart2 offect = GetOffectValue(_centerOffect);
foreach (var item in _xTip)
{
//item.Text = (cur * xeveryone + _xLimt.Vec1).ToString("0.00");
item.Text = (((double)item.GetValue(Canvas.LeftProperty) - _origPoint.X) * _everyDisForPiexl.Vec1 + offect.Vec1).ToString("0.0");
cur++;
}
cur = 0;
foreach (var item in _yTip)
{
//item.Text = (cur * yeveryone + _yLimt.Vec1).ToString("0.00");
item.Text = (((double)item.GetValue(Canvas.BottomProperty) - _origPoint.Y) * _everyDisForPiexl.Vec2 + offect.Vec2).ToString("0.0");
cur++;
}
}
/// <summary>
/// 根据偏差移动绘图区
/// </summary>
/// <param name="offect"></param>
/// <returns></returns>
public bool MoveDrawLinesAndPoints(Point offect)
{
if (Math.Pow(offect.X, 2) + Math.Pow(offect.Y, 2) < 3 * 3)
{
return(false);
}
_centerOffect.Vec1 += offect.X;
_centerOffect.Vec2 += offect.Y;
VectorChart2 offectValue = GetOffectValue(_centerOffect);
if (XLimt.Vec1 + offectValue.Vec1 <= ScaleLimt.Vec1 || XLimt.Vec2 + offectValue.Vec1 >= ScaleLimt.Vec2 || YLimt.Vec1 + offectValue.Vec2 <= ScaleLimt.Vec3 || YLimt.Vec2 + offectValue.Vec2 >= ScaleLimt.Vec4)
{
_centerOffect.Vec1 -= offect.X;
_centerOffect.Vec2 -= offect.Y;
return(false);
}
Point curp = new Point(Canvas.GetLeft(DrawLineAndPoint), Draw.Height - Canvas.GetBottom(DrawLineAndPoint));
curp.X += offect.X;
curp.Y += offect.Y;
Canvas.SetLeft(DrawLineAndPoint, curp.X);
Canvas.SetBottom(DrawLineAndPoint, Draw.Height - curp.Y);
AdjustLines();
return(true);
}
/// <summary>
/// 鼠标滚轮事件
/// </summary>
/// <param name="e"></param>
protected override void OnMouseWheel(MouseWheelEventArgs e)
{
base.OnMouseWheel(e);
VectorChart2 curPDraw = (VectorChart2)e.GetPosition(Draw);
VectorChart2 curPLinesAndPoint = (VectorChart2)e.GetPosition(DrawLineAndPoint);
double delta = 1;
if (e.Delta >= 120)
{
delta = 1.2;
}
else if (e.Delta <= -120)
{
delta = (double)5 / (double)6;
}
if (IsXZoom)
{
DrawLineAndPoint.Width *= delta;
curPDraw.Vec1 *= delta;
curPLinesAndPoint.Vec1 *= delta;
}
if (IsYZoom)
{
DrawLineAndPoint.Height *= delta;
curPDraw.Vec2 *= delta;
curPLinesAndPoint.Vec2 *= delta;
}
_currentLinesScale.Vec4 *= delta;
//Canvas.SetLeft(DrawLineAndPoint, curPDraw.Vec1 - curPLinesAndPoint.Vec1);
//Canvas.SetBottom(DrawLineAndPoint, -(DrawArea.Vec2 - (curPLinesAndPoint.Vec2 - curPDraw.Vec2)));
///调整刻度
AdjustLines();
AdjustLinesAndPoints();
}
/// <summary>
/// 根据具体的值获取应该的偏移量
/// </summary>
/// <param name="offectValue"></param>
/// <returns></returns>
protected VectorChart2 GetOffectPoint(VectorChart2 offectValue)
{
return(new VectorChart2(offectValue.Vec1 / _everyDisForPiexl.Vec1, offectValue.Vec2 / _everyDisForPiexl.Vec2));
}
/// <summary>
/// 获取偏移量
/// </summary>
/// <returns></returns>
protected VectorChart2 GetOffectValue(VectorChart2 offectValue)
{
return(new VectorChart2(-offectValue.Vec1 * _everyDisForPiexl.Vec1, offectValue.Vec2 * _everyDisForPiexl.Vec2));
}
