public static GraphBounds Join(GraphBounds left, GraphBounds right)
{
return new GraphBounds(
Math.Min(left.MinX, right.MinX),
Math.Max(left.MaxX, right.MaxX),
Math.Min(left.MinY, right.MinY),
Math.Max(left.MaxY, right.MaxY));
}
protected override void GetRawDataBounds(out GraphBounds nonTransformedBounds, out GraphBounds transformedBounds)
{
if (_Graphs.Count == 0)
{
base.GetRawDataBounds(out nonTransformedBounds, out transformedBounds);
return;
}
nonTransformedBounds = GraphBounds.CreateInitial();
transformedBounds = GraphBounds.CreateInitial();
foreach (DisplayedGraph gr in _Graphs)
{
foreach (KeyValuePair<double, double> kv in gr.Graph.SortedPoints)
{
double x = kv.Key;
nonTransformedBounds.MinX = Math.Min(nonTransformedBounds.MinX, x);
nonTransformedBounds.MaxX = Math.Max(nonTransformedBounds.MaxX, x);
DoTransformX(ref x);
if (!double.IsInfinity(x) && !double.IsNaN(x))
{
transformedBounds.MinX = Math.Min(transformedBounds.MinX, x);
transformedBounds.MaxX = Math.Max(transformedBounds.MaxX, x);
}
double y = kv.Value;
nonTransformedBounds.MinY = Math.Min(nonTransformedBounds.MinY, y);
nonTransformedBounds.MaxY = Math.Max(nonTransformedBounds.MaxY, y);
DoTransformY(ref y);
if (!double.IsInfinity(y) && !double.IsNaN(y))
{
transformedBounds.MinY = Math.Min(transformedBounds.MinY, y);
transformedBounds.MaxY = Math.Max(transformedBounds.MaxY, y);
}
}
}
}
public virtual void UpdateScaling()
{
GraphBounds nonTransformedBounds;
GetRawDataBounds(out nonTransformedBounds, out _TransformedBounds);
if (_AlwaysShowZeroX)
{
_TransformedBounds.MinX = Math.Min(0, _TransformedBounds.MinX);
_TransformedBounds.MaxX = Math.Max(0, _TransformedBounds.MaxX);
}
if (_AlwaysShowZeroY)
{
_TransformedBounds.MinY = Math.Min(0, _TransformedBounds.MinY);
_TransformedBounds.MaxY = Math.Max(0, _TransformedBounds.MaxY);
}
if (_CenterX)
{
double max = Math.Max(Math.Abs(_TransformedBounds.MinX), Math.Abs(_TransformedBounds.MaxX));
_TransformedBounds.MinX = -max;
_TransformedBounds.MaxX = max;
}
if (_CenterY)
{
double max = Math.Max(Math.Abs(_TransformedBounds.MinY), Math.Abs(_TransformedBounds.MaxY));
_TransformedBounds.MinY = -max;
_TransformedBounds.MaxY = max;
}
GraphBounds transformedBounds = _TransformedBounds;
if (_ForceCustomBounds)
{
transformedBounds = TransformedBounds;
double minX = transformedBounds.MinX, minY = transformedBounds.MinY, maxX = transformedBounds.MaxX, maxY = transformedBounds.MaxY;
if (TransformX != null)
{
TransformX(this, false, ref minX);
TransformX(this, false, ref maxX);
}
if (TransformY != null)
{
TransformY(this, false, ref minY);
TransformY(this, false, ref maxY);
}
nonTransformedBounds = new GraphBounds(minX, maxX, minY, maxY);
}
_DataRectangle = new Rectangle(_AdditionalPadding.Left, _AdditionalPadding.Top, Width - _AdditionalPadding.Horizontal - 1, Height - _AdditionalPadding.Vertical - 1);
Graphics gr = Graphics.FromHwnd(Handle);
//Create list of grid points, screen coordinates will be assigned later
_YGridObj = _YGrid.CreateDimensionObjectTemplate(transformedBounds.MinY, transformedBounds.MaxY, nonTransformedBounds.MinY, nonTransformedBounds.MaxY, _DataRectangle.Height);
/* Grid/labels computation algorithm:
* 1. Compute fixed Y padding (font height)
* 2. Determine Y labels, place them, compute X padding (max. Y label width)
* 3. Determine X labels, place them
* 4. Compute label visibility
*/
int maxLabelWidth = 0;
int yPadding = Size.Ceiling(gr.MeasureString("M", Font)).Height + BigRulerDash + RulerTextSpacing;
if (!_XGrid.ShowLabels)
yPadding = 5;
//Reflect Y padding only. Used by MapY()
_DataRectangle = new Rectangle(_AdditionalPadding.Left, _AdditionalPadding.Top, Width - _AdditionalPadding.Horizontal - 1, Height - _AdditionalPadding.Vertical - 1 - yPadding);
for (int i = 0; i < _YGridObj.Data.Length; i++)
{
GridLine line = _YGridObj.Data[i];
double rawVal = line.RawValue;
if (_YGrid.TransformLabelValues && !_YGrid.ProportionalToTransformedScale)
DoTransformY(ref rawVal);
string val = string.Format(_DefaultYFormat, rawVal);
if (FormatYValue != null)
FormatYValue(this, line.RawValue, ref val);
line.Label = val;
Size labelSize = Size.Ceiling(gr.MeasureString(val, Font));
line.LabelSize = labelSize.Height;
maxLabelWidth = Math.Max(maxLabelWidth, labelSize.Width);
line.ScreenCoordinate = MapY(line.RawValue, !_YGridObj.Transformed);
if (i == 0)
line.TextCoordinate = Math.Min(line.ScreenCoordinate - line.LabelSize / 2, _DataRectangle.Bottom - line.LabelSize);
else if (i == (_YGridObj.Data.Length - 1))
line.TextCoordinate = Math.Max(line.ScreenCoordinate - line.LabelSize / 2, _DataRectangle.Top);
else
line.TextCoordinate = line.ScreenCoordinate - line.LabelSize / 2;
}
int xPadding = maxLabelWidth + BigRulerDash + RulerTextSpacing;
if (!_YGrid.ShowLabels)
xPadding = 0;
//Reflect both X and Y padding
_DataRectangle = new Rectangle(_AdditionalPadding.Left + xPadding, _AdditionalPadding.Top, Width - _AdditionalPadding.Horizontal - 1 - xPadding, Height - _AdditionalPadding.Vertical - 1 - yPadding);
_XGridObj = _XGrid.CreateDimensionObjectTemplate(transformedBounds.MinX, transformedBounds.MaxX, nonTransformedBounds.MinX, nonTransformedBounds.MaxX, _DataRectangle.Width);
for (int i = 0; i < _XGridObj.Data.Length; i++)
{
GridLine line = _XGridObj.Data[i];
double rawVal = line.RawValue;
if (_XGrid.TransformLabelValues && !_XGrid.ProportionalToTransformedScale)
DoTransformX(ref rawVal);
string val = string.Format(_DefaultXFormat, rawVal);
if (FormatXValue != null)
FormatXValue(this, line.RawValue, ref val);
line.Label = val;
line.LabelSize = Size.Ceiling(gr.MeasureString(val, Font)).Width;
line.LabelVisible = true;
line.ScreenCoordinate = MapX(line.RawValue, !_YGridObj.Transformed);
if (i == 0)
line.TextCoordinate = Math.Max(line.ScreenCoordinate - line.LabelSize / 2, _DataRectangle.Left);
else if (i == (_XGridObj.Data.Length - 1))
line.TextCoordinate = Math.Min(line.ScreenCoordinate - line.LabelSize / 2, _DataRectangle.Right - line.LabelSize);
else
line.TextCoordinate = line.ScreenCoordinate - line.LabelSize / 2;
}
_YGridObj.ComputeLabelVisibility(_YGrid.DistributeLabelsEvenly && _YGridObj.Transformed, true);
_XGridObj.ComputeLabelVisibility(_XGrid.DistributeLabelsEvenly && _XGridObj.Transformed, false);
Invalidate();
}
protected virtual void GetRawDataBounds(out GraphBounds nonTransformedBounds, out GraphBounds transformedBounds)
{
nonTransformedBounds = new GraphBounds();
transformedBounds = new GraphBounds();
}
public void ForceNewBounds(double minX, double maxX, double minY, double maxY)
{
if (TransformX != null)
{
TransformX(this, true, ref minX);
TransformX(this, true, ref maxX);
}
if (TransformY != null)
{
TransformY(this, true, ref minY);
TransformY(this, true, ref maxY);
}
_ForcedBounds = new GraphBounds(minX, maxX, minY, maxY);
ForceCustomBounds = true;
}