/// <summary>
/// 画矩形
/// </summary>
private void DrawSquare(Point endP)
{
try
{
List <Point> pointList = new List <Point>
{
new Point(startPoint.X, startPoint.Y),
new Point(startPoint.X, endP.Y),
new Point(endP.X, endP.Y),
new Point(endP.X, startPoint.Y),
new Point(startPoint.X, startPoint.Y),
};
StylusPointCollection point = new StylusPointCollection(pointList);
if (stroke != null)
{
InkStrokes.Remove(stroke);
}
stroke = new Stroke(point)
{
DrawingAttributes = inkCanvasMeasure.DefaultDrawingAttributes.Clone()
};
InkStrokes.Add(stroke);
point = null;
}
catch (Exception ex)
{
logger.Error($"DrawSquare:{ex.Message}");
}
}
public void UndoBody()
{
if (InkStrokes.Count == 0)
{
return;
}
InkStrokes.RemoveAt(InkStrokes.Count - 1);
}
private void DrawPen(Point endP)
{
try
{
penCollection.Add(new StylusPoint(endP.X, endP.Y));
if (stroke != null)
{
InkStrokes.Remove(stroke);
}
stroke = new Stroke(penCollection)
{
DrawingAttributes = inkCanvasMeasure.DefaultDrawingAttributes.Clone()
};
InkStrokes.Add(stroke);
}
catch (Exception ex)
{
logger.Error($"DrawEllipse:{ex.Message}");
}
}
/// <summary>
/// 画椭圆
/// </summary>
/// <param name="endP"></param>
private void DrawEllipse(Point endP)
{
try
{
List <Point> pointList = GenerateEclipseGeometry(startPoint, endP);
StylusPointCollection point = new StylusPointCollection(pointList);
if (stroke != null)
{
InkStrokes.Remove(stroke);
}
stroke = new Stroke(point)
{
DrawingAttributes = inkCanvasMeasure.DefaultDrawingAttributes.Clone()
};
InkStrokes.Add(stroke);
point = null;
}
catch (Exception ex)
{
logger.Error($"DrawEllipse:{ex.Message}");
}
}