private void Synchronize( Axis source, Axis dest )
{
dest._scale._min = source._scale._min;
dest._scale._max = source._scale._max;
dest._scale._majorStep = source._scale._majorStep;
dest._scale._minorStep = source._scale._minorStep;
dest._scale._minAuto = source._scale._minAuto;
dest._scale._maxAuto = source._scale._maxAuto;
dest._scale._majorStepAuto = source._scale._majorStepAuto;
dest._scale._minorStepAuto = source._scale._minorStepAuto;
}
/// <summary>
/// Construct a <see c_ref="ScaleState"/> from the specified <see c_ref="Axis"/>
/// </summary>
/// <param name="axis">The <see c_ref="Axis"/> from which to collect the scale
/// range settings.</param>
public ScaleState( Axis axis )
{
_min = axis._scale._min;
_minorStep = axis._scale._minorStep;
_majorStep = axis._scale._majorStep;
_max = axis._scale._max;
_majorUnit = axis._scale._majorUnit;
_minorUnit = axis._scale._minorUnit;
_format = axis._scale._format;
_mag = axis._scale._mag;
//this.numDec = axis.NumDec;
_minAuto = axis._scale._minAuto;
_majorStepAuto = axis._scale._majorStepAuto;
_minorStepAuto = axis._scale._minorStepAuto;
_maxAuto = axis._scale._maxAuto;
_formatAuto = axis._scale._formatAuto;
_magAuto = axis._scale._magAuto;
}
/*
/// <summary>
/// Use the MouseCaptureChanged as an indicator for the start and end of a scrolling operation
/// </summary>
private void ScrollBarMouseCaptureChanged( object sender, EventArgs e )
{
return;
ScrollBar scrollBar = sender as ScrollBar;
if ( scrollBar != null )
{
// If this is the start of a new scroll, then Capture will be true
if ( scrollBar.Capture )
{
// save the original zoomstate
//_zoomState = new ZoomState( this.GraphPane, ZoomState.StateType.Scroll );
ZoomStateSave( this.GraphPane, ZoomState.StateType.Scroll );
}
else
{
// push the prior saved zoomstate, since the scale ranges have already been changed on
// the fly during the scrolling operation
if ( _zoomState != null && _zoomState.IsChanged( this.GraphPane ) )
{
//this.GraphPane.ZoomStack.Push( _zoomState );
ZoomStatePush( this.GraphPane );
// Provide Callback to notify the user of pan events
if ( this.ScrollDoneEvent != null )
this.ScrollDoneEvent( this, scrollBar, _zoomState,
new ZoomState( this.GraphPane, ZoomState.StateType.Scroll ) );
_zoomState = null;
}
}
}
}
*/
private void HandleScroll( Axis axis, int newValue, double scrollMin, double scrollMax,
int largeChange, bool reverse )
{
if ( axis != null )
{
if ( scrollMin > axis._scale._min )
scrollMin = axis._scale._min;
if ( scrollMax < axis._scale._max )
scrollMax = axis._scale._max;
int span = _ScrollControlSpan - largeChange;
if ( span <= 0 )
return;
if ( reverse )
newValue = span - newValue;
Scale scale = axis._scale;
double delta = scale._maxLinearized - scale._minLinearized;
double scrollMin2 = scale.Linearize( scrollMax ) - delta;
scrollMin = scale.Linearize( scrollMin );
//scrollMax = scale.Linearize( scrollMax );
double val = scrollMin + newValue / (double)span *
( scrollMin2 - scrollMin );
scale._minLinearized = val;
scale._maxLinearized = val + delta;
/*
if ( axis.Scale.IsLog )
{
double ratio = axis._scale._max / axis._scale._min;
double scrollMin2 = scrollMax / ratio;
double val = scrollMin * Math.Exp( (double)newValue / (double)span *
( Math.Log( scrollMin2 ) - Math.Log( scrollMin ) ) );
axis._scale._min = val;
axis._scale._max = val * ratio;
}
else
{
double delta = axis._scale._max - axis._scale._min;
double scrollMin2 = scrollMax - delta;
double val = scrollMin + (double)newValue / (double)span *
( scrollMin2 - scrollMin );
axis._scale._min = val;
axis._scale._max = val + delta;
}
*/
Invalidate();
}
}
/*
#region events
/// <summary>
/// A delegate that allows full custom formatting of the Axis labels
/// </summary>
/// <param name="pane">The <see c_ref="GraphPane" /> for which the label is to be
/// formatted</param>
/// <param name="axis">The <see c_ref="Axis" /> for which the label is to be formatted</param>
/// <param name="val">The value to be formatted</param>
/// <param name="index">The zero-based index of the label to be formatted</param>
/// <returns>
/// A string value representing the label, or null if the ZedGraph should go ahead
/// and generate the label according to the current settings</returns>
/// <seealso c_ref="ScaleFormatEvent" />
public delegate string ScaleFormatHandler( GraphPane pane, Axis axis, double val, int index );
/// <summary>
/// Subscribe to this event to handle custom formatting of the scale labels.
/// </summary>
public event ScaleFormatHandler ScaleFormatEvent;
#endregion
*/
#region Methods
/// <summary>
/// Setup some temporary transform values in preparation for rendering the
/// <see c_ref="Axis"/>.
/// </summary>
/// <remarks>
/// This method is typically called by the parent <see c_ref="GraphPane"/>
/// object as part of the <see c_ref="GraphPane.Draw"/> method. It is also
/// called by <see c_ref="GraphPane.GeneralTransform(double,double,CoordType)"/> and
/// <see c_ref="GraphPane.ReverseTransform( PointF, out double, out double )"/>
/// methods to setup for coordinate transformations.
/// </remarks>
/// <param name="pane">
/// A reference to the <see c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="axis">
/// The parent <see c_ref="Axis" /> for this <see c_ref="Scale" />
/// </param>
virtual public void SetupScaleData( GraphPane pane, Axis axis )
{
// save the ChartRect data for transforming scale values to pixels
if ( axis is XAxis || axis is X2Axis )
{
_minPix = pane.Chart._rect.Left;
_maxPix = pane.Chart._rect.Right;
}
else
{
_minPix = pane.Chart._rect.Top;
_maxPix = pane.Chart._rect.Bottom;
}
_minLinTemp = Linearize( _min );
_maxLinTemp = Linearize( _max );
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="LogScale" /> object from which to copy</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="LogScale" /></param>
public LogScale( Scale rhs, Axis owner )
: base( rhs, owner )
{
}
/// <summary>
/// Setup some temporary transform values in preparation for rendering the <see c_ref="Axis"/>.
/// </summary>
/// <remarks>
/// This method is typically called by the parent <see c_ref="GraphPane"/>
/// object as part of the <see c_ref="GraphPane.Draw"/> method. It is also
/// called by <see c_ref="GraphPane.GeneralTransform(double,double,CoordType)"/> and
/// <see c_ref="GraphPane.ReverseTransform( PointF, out double, out double )"/>
/// methods to setup for coordinate transformations.
/// </remarks>
/// <param name="pane">
/// A reference to the <see c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="axis">
/// The parent <see c_ref="Axis" /> for this <see c_ref="Scale" />
/// </param>
override public void SetupScaleData( GraphPane pane, Axis axis )
{
base.SetupScaleData( pane, axis );
if ( _exponent > 0 )
{
_minLinTemp = Linearize( _min );
_maxLinTemp = Linearize( _max );
}
else if ( _exponent < 0 )
{
_minLinTemp = Linearize( _max );
_maxLinTemp = Linearize( _min );
}
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="ExponentScale" /> object from which to copy</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="ExponentScale" /></param>
public ExponentScale( Scale rhs, Axis owner )
: base( rhs, owner )
{
}
/// <summary>
/// Basic constructor -- requires that the <see c_ref="Scale" /> object be intialized with
/// a pre-existing owner <see c_ref="Axis" />.
/// </summary>
/// <param name="ownerAxis">The <see c_ref="Axis" /> object that is the owner of this
/// <see c_ref="Scale" /> instance.</param>
public Scale( Axis ownerAxis )
{
_ownerAxis = ownerAxis;
_min = 0.0;
_max = 1.0;
_majorStep = 0.1;
_minorStep = 0.1;
_exponent = 1.0;
_mag = 0;
_baseTic = PointPair.Missing;
_minGrace = Default.MinGrace;
_maxGrace = Default.MaxGrace;
_minAuto = true;
_maxAuto = true;
_majorStepAuto = true;
_minorStepAuto = true;
_magAuto = true;
_formatAuto = true;
_isReverse = Default.IsReverse;
_isUseTenPower = true;
_isPreventLabelOverlap = true;
_isVisible = true;
_isSkipFirstLabel = false;
_isSkipLastLabel = false;
_isSkipCrossLabel = false;
_majorUnit = DateUnit.Day;
_minorUnit = DateUnit.Day;
_format = null;
_textLabels = null;
_isLabelsInside = Default.IsLabelsInside;
_align = Default.Align;
_alignH = Default.AlignH;
_fontSpec = new FontSpec(
Default.FontFamily, Default.FontSize,
Default.FontColor, Default.FontBold,
Default.FontUnderline, Default.FontItalic,
Default.FillColor, Default.FillBrush,
Default.FillType );
_fontSpec.Border.IsVisible = false;
_labelGap = Default.LabelGap;
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="LinearAsOrdinalScale" /> object from which to copy</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="LinearAsOrdinalScale" /></param>
public LinearAsOrdinalScale( Scale rhs, Axis owner )
: base( rhs, owner )
{
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="TextScale" /> object from which to copy</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="TextScale" /></param>
public TextScale( Scale rhs, Axis owner )
: base( rhs, owner )
{
}
/// <summary>
/// Default constructor that defines the owner <see c_ref="Axis" />
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">The owner, or containing object, of this instance</param>
public DateScale( Axis owner )
: base( owner )
{
}
/// <summary>
/// Determine the minimum increment between individual points to be used for
/// calculating a bar size that fits without overlapping
/// </summary>
/// <param name="list">The <see c_ref="IPointList" /> list of points for the bar
/// of interest</param>
/// <param name="baseAxis">The base axis for the bar</param>
/// <returns>The minimum increment between bars along the base axis</returns>
internal static double GetMinStepSize( IPointList list, Axis baseAxis )
{
double minStep = Double.MaxValue;
if ( list.Count <= 0 || baseAxis._scale.IsAnyOrdinal )
return 1.0;
PointPair lastPt = list[0];
for ( int i = 1; i < list.Count; i++ )
{
PointPair pt = list[i];
if ( !pt.IsInvalid || !lastPt.IsInvalid )
{
double step;
if ( baseAxis is XAxis || baseAxis is X2Axis )
step = pt.X - lastPt.X;
else
step = pt.Y - lastPt.Y;
if ( step > 0 && step < minStep )
minStep = step;
}
lastPt = pt;
}
double range = baseAxis.Scale._maxLinearized - baseAxis.Scale._minLinearized;
if ( range <= 0 )
minStep = 1.0;
// else if ( minStep <= 0 || minStep < 0.001 * range || minStep > range )
else if ( minStep <= 0 || minStep > range )
minStep = 0.1 * range;
return minStep;
}
public TextScale( Axis owner )
: base( owner )
{
}
/// <summary>
/// Draw all the <see c_ref="JapaneseCandleStick"/>'s to the specified <see c_ref="Graphics"/>
/// device as a candlestick at each defined point.
/// </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 c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see c_ref="JapaneseCandleStickItem"/> object representing the
/// <see c_ref="JapaneseCandleStick"/>'s to be drawn.</param>
/// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent)
/// axis for the <see c_ref="JapaneseCandleStick"/></param>
/// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent)
/// axis for the <see c_ref="JapaneseCandleStick"/></param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see c_ref="GraphPane"/> object using the
/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public void Draw( Graphics g, GraphPane pane, JapaneseCandleStickItem curve,
Axis baseAxis, Axis valueAxis, float scaleFactor )
{
//ValueHandler valueHandler = new ValueHandler( pane, false );
float pixBase, pixHigh, pixLow, pixOpen, pixClose;
if ( curve.Points != null )
{
//float halfSize = _size * scaleFactor;
float halfSize = GetBarWidth( pane, baseAxis, scaleFactor );
Color tColor = _color;
Color tFallingColor = _fallingColor;
float tPenWidth = _width;
Fill tRisingFill = _risingFill;
Fill tFallingFill = _fallingFill;
Border tRisingBorder = _risingBorder;
Border tFallingBorder = _fallingBorder;
if ( curve.IsSelected )
{
tColor = Selection.Border.Color;
tFallingColor = Selection.Border.Color;
tPenWidth = Selection.Border.Width;
tRisingFill = Selection.Fill;
tFallingFill = Selection.Fill;
tRisingBorder = Selection.Border;
tFallingBorder = Selection.Border;
}
using ( Pen risingPen = new Pen( tColor, tPenWidth ) )
using ( Pen fallingPen = new Pen( tFallingColor, tPenWidth ) )
{
// Loop over each defined point
for ( int i = 0; i < curve.Points.Count; i++ )
{
PointPair pt = curve.Points[i];
double date = pt.X;
double high = pt.Y;
double low = pt.Z;
double open = PointPair.Missing;
double close = PointPair.Missing;
if ( pt is StockPt )
{
open = ( pt as StockPt ).Open;
close = ( pt as StockPt ).Close;
}
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if ( !curve.Points[i].IsInvalid3D &&
( date > 0 || !baseAxis._scale.IsLog ) &&
( ( high > 0 && low > 0 ) || !valueAxis._scale.IsLog ) )
{
pixBase = (int) ( baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date ) + 0.5 );
//pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date );
pixHigh = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, high );
pixLow = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, low );
if ( PointPair.IsValueInvalid( open ) )
pixOpen = Single.MaxValue;
else
pixOpen = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, open );
if ( PointPair.IsValueInvalid( close ) )
pixClose = Single.MaxValue;
else
pixClose = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, close );
if ( !curve.IsSelected && _gradientFill.IsGradientValueType )
{
using ( Pen tPen = GetPen( pane, scaleFactor, pt ) )
Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis,
pixBase, pixHigh, pixLow, pixOpen,
pixClose, halfSize, scaleFactor,
( tPen ),
( close > open ? tRisingFill : tFallingFill ),
( close > open ? tRisingBorder : tFallingBorder ), pt );
}
else
Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis,
pixBase, pixHigh, pixLow, pixOpen,
pixClose, halfSize, scaleFactor,
( close > open ? risingPen : fallingPen ),
( close > open ? tRisingFill : tFallingFill ),
( close > open ? tRisingBorder : tFallingBorder ), pt );
}
}
}
}
}
/// <summary> /// Create a new clone of the current item, with a new owner assignment /// </summary> /// <param name="owner">The new <see c_ref="Axis" /> instance that will be /// the owner of the new Scale</param> /// <returns>A new <see c_ref="Scale" /> clone.</returns> abstract public Scale Clone( Axis owner );
/// <summary>
/// Copy Constructor. Create a new <see c_ref="Scale" /> object based on the specified
/// existing one.
/// </summary>
/// <param name="rhs">The <see c_ref="Scale" /> object to be copied.</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="Scale" /></param>
public Scale( Scale rhs, Axis owner )
{
_ownerAxis = owner;
_min = rhs._min;
_max = rhs._max;
_majorStep = rhs._majorStep;
_minorStep = rhs._minorStep;
_exponent = rhs._exponent;
_baseTic = rhs._baseTic;
_minAuto = rhs._minAuto;
_maxAuto = rhs._maxAuto;
_majorStepAuto = rhs._majorStepAuto;
_minorStepAuto = rhs._minorStepAuto;
_magAuto = rhs._magAuto;
_formatAuto = rhs._formatAuto;
_minGrace = rhs._minGrace;
_maxGrace = rhs._maxGrace;
_mag = rhs._mag;
_isUseTenPower = rhs._isUseTenPower;
_isReverse = rhs._isReverse;
_isPreventLabelOverlap = rhs._isPreventLabelOverlap;
_isVisible = rhs._isVisible;
_isSkipFirstLabel = rhs._isSkipFirstLabel;
_isSkipLastLabel = rhs._isSkipLastLabel;
_isSkipCrossLabel = rhs._isSkipCrossLabel;
_majorUnit = rhs._majorUnit;
_minorUnit = rhs._minorUnit;
_format = rhs._format;
_isLabelsInside = rhs._isLabelsInside;
_align = rhs._align;
_alignH = rhs._alignH;
_fontSpec = rhs._fontSpec.Clone();
_labelGap = rhs._labelGap;
if ( rhs._textLabels != null )
_textLabels = (string[])rhs._textLabels.Clone();
else
_textLabels = null;
}
private void SetScroll( ScrollBar scrollBar, Axis axis, double scrollMin, double scrollMax )
{
if ( scrollBar != null && axis != null )
{
scrollBar.Minimum = 0;
scrollBar.Maximum = _ScrollControlSpan - 1;
if ( scrollMin > axis._scale._min )
scrollMin = axis._scale._min;
if ( scrollMax < axis._scale._max )
scrollMax = axis._scale._max;
int val = 0;
Scale scale = axis._scale;
double minLinearized = scale._minLinearized;
double maxLinearized = scale._maxLinearized;
scrollMin = scale.Linearize( scrollMin );
scrollMax = scale.Linearize( scrollMax );
double scrollMin2 = scrollMax - ( maxLinearized - minLinearized );
/*
if ( axis.Scale.IsLog )
scrollMin2 = scrollMax / ( axis._scale._max / axis._scale._min );
else
scrollMin2 = scrollMax - ( axis._scale._max - axis._scale._min );
*/
if ( scrollMin >= scrollMin2 )
{
//scrollBar.Visible = false;
scrollBar.Enabled = false;
scrollBar.Value = 0;
}
else
{
double ratio = ( maxLinearized - minLinearized ) / ( scrollMax - scrollMin );
/*
if ( axis.Scale.IsLog )
ratio = ( Math.Log( axis._scale._max ) - Math.Log( axis._scale._min ) ) /
( Math.Log( scrollMax ) - Math.Log( scrollMin ) );
else
ratio = ( axis._scale._max - axis._scale._min ) / ( scrollMax - scrollMin );
*/
int largeChange = (int)( ratio * _ScrollControlSpan + 0.5 );
if ( largeChange < 1 )
largeChange = 1;
scrollBar.LargeChange = largeChange;
int smallChange = largeChange / _ScrollSmallRatio;
if ( smallChange < 1 )
smallChange = 1;
scrollBar.SmallChange = smallChange;
int span = _ScrollControlSpan - largeChange;
val = (int)( ( minLinearized - scrollMin ) / ( scrollMin2 - scrollMin ) *
span + 0.5 );
/*
if ( axis.Scale.IsLog )
val = (int)( ( Math.Log( axis._scale._min ) - Math.Log( scrollMin ) ) /
( Math.Log( scrollMin2 ) - Math.Log( scrollMin ) ) * span + 0.5 );
else
val = (int)( ( axis._scale._min - scrollMin ) / ( scrollMin2 - scrollMin ) *
span + 0.5 );
*/
if ( val < 0 )
val = 0;
else if ( val > span )
val = span;
//if ( ( axis is XAxis && axis.IsReverse ) || ( ( ! axis is XAxis ) && ! axis.IsReverse ) )
if ( ( axis is XAxis ) == axis.Scale.IsReverse )
val = span - val;
if ( val < scrollBar.Minimum )
val = scrollBar.Minimum;
if ( val > scrollBar.Maximum )
val = scrollBar.Maximum;
scrollBar.Value = val;
scrollBar.Enabled = true;
//scrollBar.Visible = true;
}
}
}
/// <summary>
/// Create a new clone of the current item, with a new owner assignment
/// </summary>
/// <param name="owner">The new <see c_ref="Axis" /> instance that will be
/// the owner of the new Scale</param>
/// <returns>A new <see c_ref="Scale" /> clone.</returns>
public override Scale Clone( Axis owner )
{
return new DateScale( this, owner );
}
/// <summary>
/// The Copy Constructor.
/// </summary>
/// <param name="rhs">The Axis object from which to copy</param>
public Axis( Axis rhs )
{
_scale = rhs._scale.Clone( this );
_cross = rhs._cross;
_crossAuto = rhs._crossAuto;
_majorTic = rhs.MajorTic.Clone();
_minorTic = rhs.MinorTic.Clone();
_majorGrid = rhs._majorGrid.Clone();
_minorGrid = rhs._minorGrid.Clone();
_isVisible = rhs.IsVisible;
_isAxisSegmentVisible = rhs._isAxisSegmentVisible;
_title = rhs.Title.Clone();
_axisGap = rhs._axisGap;
_minSpace = rhs.MinSpace;
_color = rhs.Color;
}
/// <summary>
/// Define suitable default ranges for an axis in the event that
/// no data were available
/// </summary>
/// <param name="pane">The <see c_ref="GraphPane"/> of interest</param>
/// <param name="axis">The <see c_ref="Axis"/> for which to set the range</param>
internal void SetRange( GraphPane pane, Axis axis )
{
if ( _rangeMin >= Double.MaxValue || _rangeMax <= Double.MinValue )
{
// If this is a Y axis, and the main Y axis is valid, use it for defaults
if ( axis != pane.XAxis && axis != pane.X2Axis &&
pane.YAxis.Scale._rangeMin < double.MaxValue && pane.YAxis.Scale._rangeMax > double.MinValue )
{
_rangeMin = pane.YAxis.Scale._rangeMin;
_rangeMax = pane.YAxis.Scale._rangeMax;
}
// Otherwise, if this is a Y axis, and the main Y2 axis is valid, use it for defaults
else if ( axis != pane.XAxis && axis != pane.X2Axis &&
pane.Y2Axis.Scale._rangeMin < double.MaxValue && pane.Y2Axis.Scale._rangeMax > double.MinValue )
{
_rangeMin = pane.Y2Axis.Scale._rangeMin;
_rangeMax = pane.Y2Axis.Scale._rangeMax;
}
// Otherwise, just use 0 and 1
else
{
_rangeMin = 0;
_rangeMax = 1;
}
}
/*
if ( yMinVal >= Double.MaxValue || yMaxVal <= Double.MinValue )
{
if ( y2MinVal < Double.MaxValue && y2MaxVal > Double.MinValue )
{
yMinVal = y2MinVal;
yMaxVal = y2MaxVal;
}
else
{
yMinVal = 0;
yMaxVal = 0.01;
}
}
if ( y2MinVal >= Double.MaxValue || y2MaxVal <= Double.MinValue )
{
if ( yMinVal < Double.MaxValue && yMaxVal > Double.MinValue )
{
y2MinVal = yMinVal;
y2MaxVal = yMaxVal;
}
else
{
y2MinVal = 0;
y2MaxVal = 1;
}
}
*/
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="DateScale" /> object from which to copy</param>
/// <param name="owner">The <see c_ref="Axis" /> object that will own the
/// new instance of <see c_ref="DateScale" /></param>
public DateScale( Scale rhs, Axis owner )
: base( rhs, owner )
{
}
/// <summary>
/// Draw the this <see c_ref="Bar"/> to the specified <see c_ref="Graphics"/>
/// device as a bar at each defined point. This method
/// is normally only called by the <see c_ref="BarItem.Draw"/> method of the
/// <see c_ref="BarItem"/> object
/// </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 c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see c_ref="CurveItem"/> object representing the
/// <see c_ref="Bar"/>'s to be drawn.</param>
/// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.)
/// in the cluster of bars.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see c_ref="GraphPane"/> object using the
/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public void DrawBars( Graphics g, GraphPane pane, CurveItem curve,
Axis baseAxis, Axis valueAxis,
float barWidth, int pos, float scaleFactor )
{
// For non-cluster bar types, the position is always zero since the bars are on top
// of eachother
BarType barType = pane._barSettings.Type;
if ( barType == BarType.Overlay || barType == BarType.Stack || barType == BarType.PercentStack ||
barType == BarType.SortedOverlay )
pos = 0;
// Loop over each defined point and draw the corresponding bar
for ( int i=0; i<curve.Points.Count; i++ )
DrawSingleBar( g, pane, curve, i, pos, baseAxis, valueAxis, barWidth, scaleFactor );
}
/// <summary>
/// Default constructor that defines the owner <see c_ref="Axis" />
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">The owner, or containing object, of this instance</param>
public LinearAsOrdinalScale( Axis owner )
: base( owner )
{
}
/// <summary>
/// Draw the specified single bar (an individual "point") of this series to the specified
/// <see c_ref="Graphics"/> device. This method is not as efficient as
/// <see c_ref="DrawBars"/>, which draws the bars for all points. It is intended to be used
/// only for <see c_ref="BarType.SortedOverlay"/>, which requires special handling of each bar.
/// </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 c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see c_ref="CurveItem"/> object representing the
/// <see c_ref="Bar"/>'s to be drawn.</param>
/// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.)
/// in the cluster of bars.
/// </param>
/// <param name="index">
/// The zero-based index number for the single bar to be drawn.
/// </param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see c_ref="GraphPane"/> object using the
/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
public void DrawSingleBar( Graphics g, GraphPane pane, CurveItem curve,
Axis baseAxis, Axis valueAxis,
int pos, int index, float barWidth, float scaleFactor )
{
// Make sure that a bar value exists for the current curve and current ordinal position
if ( index >= curve.Points.Count )
return;
// For Overlay and Stack bars, the position is always zero since the bars are on top
// of eachother
if ( pane._barSettings.Type == BarType.Overlay || pane._barSettings.Type == BarType.Stack ||
pane._barSettings.Type == BarType.PercentStack )
pos = 0;
// Draw the specified bar
DrawSingleBar( g, pane, curve, index, pos, baseAxis, valueAxis, barWidth, scaleFactor );
}
/// <summary>
/// Create a new clone of the current item, with a new owner assignment
/// </summary>
/// <param name="owner">The new <see c_ref="Axis" /> instance that will be
/// the owner of the new Scale</param>
/// <returns>A new <see c_ref="Scale" /> clone.</returns>
public override Scale Clone( Axis owner )
{
return new LinearAsOrdinalScale( this, owner );
}
/// <summary>
/// Protected internal routine that draws the specified single bar (an individual "point")
/// of this series to the specified <see c_ref="Graphics"/> device.
/// </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 c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see c_ref="CurveItem"/> object representing the
/// <see c_ref="Bar"/>'s to be drawn.</param>
/// <param name="index">
/// The zero-based index number for the single bar to be drawn.
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.)
/// in the cluster of bars.
/// </param>
/// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent)
/// axis for the <see c_ref="Bar"/></param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see c_ref="GraphPane"/> object using the
/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
virtual protected void DrawSingleBar( Graphics g, GraphPane pane,
CurveItem curve,
int index, int pos, Axis baseAxis, Axis valueAxis,
float barWidth, float scaleFactor )
{
// pixBase = pixel value for the bar center on the base axis
// pixHiVal = pixel value for the bar top on the value axis
// pixLowVal = pixel value for the bar bottom on the value axis
float pixBase, pixHiVal, pixLowVal;
float clusterWidth = pane.BarSettings.GetClusterWidth();
//float barWidth = curve.GetBarWidth( pane );
float clusterGap = pane._barSettings.MinClusterGap * barWidth;
float barGap = barWidth * pane._barSettings.MinBarGap;
// curBase = the scale value on the base axis of the current bar
// curHiVal = the scale value on the value axis of the current bar
// curLowVal = the scale value of the bottom of the bar
double curBase, curLowVal, curHiVal;
ValueHandler valueHandler = new ValueHandler( pane, false );
valueHandler.GetValues( curve, index, out curBase, out curLowVal, out curHiVal );
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if ( !curve.Points[index].IsInvalid )
{
// calculate a pixel value for the top of the bar on value axis
pixLowVal = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curLowVal );
pixHiVal = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curHiVal );
// calculate a pixel value for the center of the bar on the base axis
pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curBase );
// Calculate the pixel location for the side of the bar (on the base axis)
float pixSide = pixBase - clusterWidth / 2.0F + clusterGap / 2.0F +
pos * ( barWidth + barGap );
// Draw the bar
if ( pane._barSettings.Base == BarBase.X )
Draw( g, pane, pixSide, pixSide + barWidth, pixLowVal,
pixHiVal, scaleFactor, true, curve.IsSelected,
curve.Points[index] );
else
Draw( g, pane, pixLowVal, pixHiVal, pixSide, pixSide + barWidth,
scaleFactor, true, curve.IsSelected,
curve.Points[index] );
}
}
/// <summary>
/// Default constructor that defines the owner <see c_ref="Axis" />
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">The owner, or containing object, of this instance</param>
public ExponentScale( Axis owner )
: base( owner )
{
}
/// <summary>
/// Setup some temporary transform values in preparation for rendering the <see c_ref="Axis"/>.
/// </summary>
/// <remarks>
/// This method is typically called by the parent <see c_ref="GraphPane"/>
/// object as part of the <see c_ref="GraphPane.Draw"/> method. It is also
/// called by <see c_ref="GraphPane.GeneralTransform(double,double,CoordType)"/> and
/// <see c_ref="GraphPane.ReverseTransform( PointF, out double, out double )"/>
/// methods to setup for coordinate transformations.
/// </remarks>
/// <param name="pane">
/// A reference to the <see c_ref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="axis">
/// The parent <see c_ref="Axis" /> for this <see c_ref="Scale" />
/// </param>
override public void SetupScaleData( GraphPane pane, Axis axis )
{
base.SetupScaleData( pane, axis );
_minLinTemp = Linearize( _min );
_maxLinTemp = Linearize( _max );
}
/// <summary>
/// Create a new clone of the current item, with a new owner assignment
/// </summary>
/// <param name="owner">The new <see c_ref="Axis" /> instance that will be
/// the owner of the new Scale</param>
/// <returns>A new <see c_ref="Scale" /> clone.</returns>
public override Scale Clone( Axis owner )
{
return new ExponentScale( this, owner );
}
/// <summary>
/// Default constructor that defines the owner <see c_ref="Axis" />
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">The owner, or containing object, of this instance</param>
public LogScale( Axis owner )
: base( owner )
{
}
