/// <summary>
/// Get path of graph object which is used for PointInBox
/// </summary>
/// <param name="pane"></param>
/// <returns></returns>
virtual public GraphicsPath MakePath(PaneBase pane)
{
GraphicsPath path = new GraphicsPath();
// transform the x,y location from the user-defined
// coordinate frame to the screen pixel location
RectangleF pixRect = _location.TransformRect(pane);
path.AddRectangle(pixRect);
return(path);
}
/// <summary>
/// Render this object to the specified <see cref="Graphics"/> device.
/// </summary>
/// <remarks>
/// This method is normally only called by the Draw method
/// of the parent <see cref="GraphObjList"/> collection object.
/// </remarks>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="PaneBase"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public override void Draw(Graphics g, PaneBase pane, float scaleFactor)
{
// Convert the arrow coordinates from the user coordinate system
// to the screen coordinate system
var pixRect = Location.TransformRect(pane);
if (Math.Abs(pixRect.Left) >= 100000 || Math.Abs(pixRect.Top) >= 100000 || Math.Abs(pixRect.Right) >= 100000 ||
Math.Abs(pixRect.Bottom) >= 100000)
{
return;
}
if (_fill.IsVisible)
{
using (var brush = _fill.MakeBrush(pixRect)) g.FillEllipse(brush, pixRect);
}
if (_border.IsVisible)
{
using (var pen = _border.GetPen(pane, scaleFactor)) g.DrawEllipse(pen, pixRect);
}
}
/// <summary>
/// Render this object to the specified <see cref="Graphics"/> device.
/// </summary>
/// <remarks>
/// This method is normally only called by the Draw method
/// of the parent <see cref="GraphObjList"/> collection object.
/// </remarks>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="PaneBase"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public override void Draw(Graphics g, PaneBase pane, float scaleFactor)
{
// Convert the arrow coordinates from the user coordinate system
// to the screen coordinate system
var pixRect = Location.TransformRect(pane);
// Clip the rect to just outside the PaneRect so we don't end up with wild coordinates.
var tmpRect = pane.Rect;
tmpRect.Inflate(20, 20);
pixRect.Intersect(tmpRect);
if (Math.Abs(pixRect.Left) >= 100000 || Math.Abs(pixRect.Top) >= 100000 || Math.Abs(pixRect.Right) >= 100000 ||
Math.Abs(pixRect.Bottom) >= 100000)
{
return;
}
// If the box is to be filled, fill it
_fill.Draw(g, pixRect);
// Draw the border around the box if required
_border.Draw(g, pane, scaleFactor, pixRect);
}
/// <summary>
/// Render this object to the specified <see cref="Graphics"/> device.
/// </summary>
/// <remarks>
/// This method is normally only called by the Draw method
/// of the parent <see cref="GraphObjList"/> collection object.
/// </remarks>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="PaneBase"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public override void Draw(Graphics g, PaneBase pane, float scaleFactor)
{
// Convert the arrow coordinates from the user coordinate system
// to the screen coordinate system
RectangleF pixRect = Location.TransformRect(pane);
if (Math.Abs(pixRect.Left) < 100000 &&
Math.Abs(pixRect.Top) < 100000 &&
Math.Abs(pixRect.Right) < 100000 &&
Math.Abs(pixRect.Bottom) < 100000)
{
if (_fill.IsVisible)
{
using (Brush brush = _fill.MakeBrush(pixRect))
g.FillEllipse(brush, pixRect);
}
if (_border.IsVisible)
{
using (Pen pen = _border.MakePen(pane.IsPenWidthScaled, scaleFactor))
g.DrawEllipse(pen, pixRect);
}
}
}
