public RectangleF GetBoundingRect(ICanvas canvas)
{
try
{
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
RectangleF rect = RectangleF.Empty;
if (m_p2.IsEmpty || m_p3.IsEmpty)
{
rect = ScreenUtils.GetRect(m_p1, m_lastPoint, thWidth);
}
if (rect.IsEmpty)
{
float r = m_radius + thWidth / 2;
rect = HitUtil.CircleBoundingRect(m_center, r);
if (Selected)
{
float w = (float)canvas.ToUnit(20);
rect.Inflate(w, w);
}
}
if (m_lastPoint.IsEmpty == false)
{
rect = RectangleF.Union(rect, new RectangleF(m_lastPoint.Point, new SizeF(0, 0)));
}
return(rect);
}
catch (Exception ex)
{ throw ex; }
}
/// <summary>
/// 获取包裹图形的矩形区域，用于清除画图轨迹
/// </summary>
/// <param name="canvas"></param>
/// <returns></returns>
public RectangleF GetBoundingRect(ICanvas canvas)
{
t.X = m_point.X > t.X?m_point.X:t.X;
t.Y = m_point.Y > t.Y ? m_point.Y : t.Y;
float r = Convert.ToSingle(Math.Sqrt((Math.Pow((m_curPoint.X - t.X), 2.0) + Math.Pow((m_curPoint.Y - t.Y), 2.0)) / 2.0));
//Console.WriteLine(r+" ");
RectangleF rect = HitUtil.CircleBoundingRect(new UnitPoint((m_curPoint.X + Math.Abs(t.X)) / 2.0, (m_curPoint.Y + Math.Abs(t.Y)) / 2.0), 2 * r);
// if drawing either angle then include the mouse point in the ractangle - this is to redraw (erase) the line drawn
// from center point to mouse point
//Console.WriteLine(r+" "+t.X+" "+t.Y);
return(rect);
//float thWidth = ThresholdWidth(canvas, Width);
//return ScreenUtils.GetRect(m_p1, m_p2, thWidth);
}
public virtual bool ObjectInRectangle(ICanvas canvas, RectangleF rect, bool anyPoint)
{
try
{
float r = m_radius + Width / 2;
RectangleF boundingrect = HitUtil.CircleBoundingRect(m_center, r);
if (anyPoint)
{
UnitPoint lp1 = new UnitPoint(rect.Left, rect.Top);
UnitPoint lp2 = new UnitPoint(rect.Left, rect.Bottom);
if (HitUtil.CircleIntersectWithLine(m_center, m_radius, lp1, lp2))
{
return(true);
}
lp1 = new UnitPoint(rect.Left, rect.Bottom);
lp2 = new UnitPoint(rect.Right, rect.Bottom);
if (HitUtil.CircleIntersectWithLine(m_center, m_radius, lp1, lp2))
{
return(true);
}
lp1 = new UnitPoint(rect.Left, rect.Top);
lp2 = new UnitPoint(rect.Right, rect.Top);
if (HitUtil.CircleIntersectWithLine(m_center, m_radius, lp1, lp2))
{
return(true);
}
lp1 = new UnitPoint(rect.Left, rect.Top);
lp2 = new UnitPoint(rect.Right, rect.Top);
if (HitUtil.CircleIntersectWithLine(m_center, m_radius, lp1, lp2))
{
return(true);
}
lp1 = new UnitPoint(rect.Right, rect.Top);
lp2 = new UnitPoint(rect.Right, rect.Bottom);
if (HitUtil.CircleIntersectWithLine(m_center, m_radius, lp1, lp2))
{
return(true);
}
}
return(rect.Contains(boundingrect));
}
catch (Exception ex)
{ throw ex; }
}
/// <summary>
/// 获取包裹图形的矩形区域，用于清除画图轨迹
/// </summary>
/// <param name="canvas"></param>
/// <returns></returns>
public RectangleF GetBoundingRect(ICanvas canvas)
{
float r = Convert.ToSingle(Math.Sqrt((Math.Pow((m_p1.X - m_p2.X), 2.0) + Math.Pow((m_p1.Y - m_p2.Y), 2.0)) / 2));
//Console.WriteLine(r+" ");
RectangleF rect = HitUtil.CircleBoundingRect(new UnitPoint((m_p1.X + m_p2.X) / 2.0, (m_p1.Y + m_p2.Y) / 2.0), r);
// if drawing either angle then include the mouse point in the ractangle - this is to redraw (erase) the line drawn
// from center point to mouse point
return(rect);
//double x1 = m_p1.X > m_p2.X ? m_p1.X : m_p2.X;
//double x2 = m_p1.X > m_p2.X ? m_p2.X : m_p1.X;
//double y1 = m_p1.Y > m_p2.Y ? m_p1.Y : m_p2.Y;
//double y2 = m_p1.Y > m_p2.Y ? m_p2.Y : m_p1.Y;
////throw new NotImplementedException();
//Console.WriteLine("GetBoundingRect "+x2 +" "+y1);
//return new RectangleF(Convert.ToSingle(x2), Convert.ToSingle(y1), Convert.ToSingle(x1 - x2), Convert.ToSingle(y1 - y2));
//Console.WriteLine();
}
public RectangleF GetBoundingRect(ICanvas canvas)
{
float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
float r = m_radius + thWidth / 2;
RectangleF rect = HitUtil.CircleBoundingRect(m_center, r);
// if drawing either angle then include the mouse point in the ractangle - this is to redraw (erase) the line drawn
// from center point to mouse point
if (m_curPoint == eCurrentPoint.startAngle || m_curPoint == eCurrentPoint.endAngle)
{
rect = RectangleF.Union(rect, new RectangleF(m_lastPoint.Point, new SizeF(0, 0)));
}
return(rect);
}
/// <summary>
/// 获取用户图像选择周围的边界矩形的坐标
/// </summary>
/// <param name="canvas"></param>
/// <returns></returns>
public RectangleF GetBoundingRect(ICanvas canvas)
{
float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
RectangleF rect = RectangleF.Empty;
//如果其中一个点是空的，那么绘制一条直线，因此返回一条直线的边界。
if (m_p2.IsEmpty || m_p3.IsEmpty)
{
rect = ScreenUtils.GetRect(m_p1, m_lastPoint, thWidth);
}
if (rect.IsEmpty)
{
float r = m_radius + thWidth / 2;
rect = HitUtil.CircleBoundingRect(m_center, r);
if (Selected)
{
float w = (float)canvas.ToUnit(20); // include space for the 'extern' nodes
rect.Inflate(w, w);
}
}
//如果绘制任一角度，则在矩形中包含鼠标点-这是重新绘制（擦除）绘制的线。
//从中心点到鼠标点
//if (m_curPoint == eCurrentPoint.startAngle || m_curPoint == eCurrentPoint.endAngle)
if (m_lastPoint.IsEmpty == false)
{
rect = RectangleF.Union(rect, new RectangleF(m_lastPoint.Point, new SizeF(0, 0)));
}
return(rect);
}
public RectangleF GetBoundingRect(ICanvas canvas)
{
float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
RectangleF rect = RectangleF.Empty;
// if one of the points is empty, then a straight line is drawn, so return bounding rect for a line
if (m_p2.IsEmpty || m_p3.IsEmpty)
{
rect = ScreenUtils.GetRect(m_p1, m_lastPoint, thWidth);
}
if (rect.IsEmpty)
{
float r = m_radius + thWidth / 2;
rect = HitUtil.CircleBoundingRect(m_center, r);
if (Selected)
{
float w = (float)canvas.ToUnit(20); // include space for the 'extern' nodes
rect.Inflate(w, w);
}
}
// if drawing either angle then include the mouse point in the rectangle - this is to redraw (erase) the line drawn
// from center point to mouse point
//if (m_curPoint == eCurrentPoint.startAngle || m_curPoint == eCurrentPoint.endAngle)
if (m_lastPoint.IsEmpty == false)
{
rect = RectangleF.Union(rect, new RectangleF(m_lastPoint.Point, new SizeF(0, 0)));
}
return(rect);
}