/// <summary>
/// Draw the <see cref="ErrorBar"/> to the specified <see cref="Graphics"/>
/// device at the specified location.
/// </summary>
/// <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="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="isXBase">boolean value that indicates if the "base" axis for this
/// <see cref="ErrorBar"/> is the X axis. True for an <see cref="XAxis"/> base,
/// false for a <see cref="YAxis"/> or <see cref="Y2Axis"/> base.</param>
/// <param name="pixBase">The independent axis position of the center of the error bar in
/// pixel units</param>
/// <param name="pixValue">The dependent axis position of the top of the error bar in
/// pixel units</param>
/// <param name="pixLowValue">The dependent axis position of the bottom of the error bar in
/// pixel units</param>
/// <param name="scaleFactor">
/// The scaling factor for the features of the graph based on the <see cref="PaneBase.BaseDimension"/>. This
/// scaling factor is calculated by the <see cref="PaneBase.CalcScaleFactor"/> method. The scale factor
/// represents a linear multiple to be applied to font sizes, symbol sizes, etc.</param>
/// <param name="pen">A pen with attributes of <see cref="Color"/> and
/// <see cref="PenWidth"/> for this <see cref="ErrorBar"/></param>
/// <param name="dataValue">The data value to be used for a value-based
/// color gradient. This is only applicable for <see cref="FillType.GradientByX"/>,
/// <see cref="FillType.GradientByY"/> or <see cref="FillType.GradientByZ"/>.</param>
/// <param name="isSelected">Indicates that the <see cref="ErrorBar" /> should be drawn
/// with attributes from the <see cref="Selection" /> class.
/// </param>
public void Draw(
Graphics g,
GraphPane pane,
bool isXBase,
float pixBase,
float pixValue,
float pixLowValue,
float scaleFactor,
Pen pen,
bool isSelected,
PointPair dataValue)
{
if (isXBase)
{
g.DrawLine(pen, pixBase, pixValue, pixBase, pixLowValue);
_symbol.DrawSymbol(
g,
pane,
(int)pixBase,
(int)pixValue,
scaleFactor,
isSelected,
dataValue);
_symbol.DrawSymbol(
g,
pane,
(int)pixBase,
(int)pixLowValue,
scaleFactor,
isSelected,
dataValue);
}
else
{
g.DrawLine(pen, pixValue, pixBase, pixLowValue, pixBase);
_symbol.DrawSymbol(
g,
pane,
(int)pixValue,
(int)pixBase,
scaleFactor,
isSelected,
dataValue);
_symbol.DrawSymbol(
g,
pane,
(int)pixLowValue,
(int)pixBase,
scaleFactor,
isSelected,
dataValue);
}
}
/// <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>
override public void Draw(Graphics g, PaneBase pane, float scaleFactor)
{
var gPane = pane as GraphPane;
if (pane == null)
{
return;
}
// Convert the arrow coordinates from the user coordinate system
// to the screen coordinate system
var pix = GetLocation(gPane, scaleFactor);
Symbol.DrawSymbol(g, gPane, Type, pix.X, pix.Y, Size, IsVisible, Fill, Border, scaleFactor, false, new PointPair());
}
/// <summary>
/// Draw a legend key entry for this <see cref="LineItem"/> at the specified location
/// </summary>
/// <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="ZedGraph.GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="rect">The <see cref="RectangleF"/> struct that specifies the
/// location for the legend key</param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="ZedGraph.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 DrawLegendKey(Graphics g, GraphPane pane, RectangleF rect, float scaleFactor)
{
// Draw a sample curve to the left of the label text
float yMid = rect.Top + rect.Height / 2.0F;
//RectangleF rect2 = rect;
//rect2.Y = yMid;
//rect2.Height = rect.Height / 2.0f;
_line.Fill.Draw(g, rect);
_line.DrawSegment(g, pane, rect.Left, yMid, rect.Right, yMid, scaleFactor);
// Draw a sample symbol to the left of the label text
_symbol.DrawSymbol(g, pane, rect.Left + rect.Width / 2.0F, yMid, scaleFactor, null);
}