private void _drawPerspectiveAreas(int mod, int rem)
{
bool animate = (this.AnimationDuration > 0);
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight - xOffset);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom - yOffset);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = lf.GetAreaPathXAML();
Path pathElem;
List <UIElement> dataElems = null;
MatrixTransform defaultTransform = null;
if (animate)
{
dataElems = DataElements;
}
bool isStacked = (Type == ChartType.AREA_STACKED);
ChartModel model = Model;
string [] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
string [] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color [] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
int yValueCount = yValues.GetUpperBound(0) + 1;
double barWidth = (gridWidth / (Math.Max(yValueCount, groupCount))), stackBase;
double barHeight;
double gridBottom = gridHeight + marginTop + yOffset, dx, dy;
double[] cumYs = isStacked? new double[yValueCount] : null;
if (isStacked)
{
cumYs = new double[yValueCount];
for (int j = 0; j < yValueCount; ++j)
{
cumYs[j] = double.NaN;
}
}
string gradientXAML = lf.GetElementGradientXAML();
for (int i = 0; i < seriesCount; ++i)
{
// for combo charts we draw a bar every once in a mod.
if ((mod > 1) && (i % mod) != rem)
{
continue;
}
dx = marginLeft + barWidth / 2.0;
// If we use non zero min and it is a stacked graph, we need to remove the min for only
// the first series.
stackBase = (i == 0?minValue:0);
StringBuilder sb = new StringBuilder();
for (int j = 0; j < yValueCount; ++j)
{
barHeight = gridHeight * (yValues[j, i] - stackBase) / (maxValue - minValue);
if (isStacked)
{
if (double.IsNaN(cumYs[j]))
{
cumYs[j] = gridBottom;
}
dy = (cumYs[j] -= barHeight);
}
else
{
dy = gridBottom - barHeight;
}
if (j == yValueCount - 1)
{
break;
}
sb.Append("M").Append(dx).Append(",").Append(dy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(dx + xOffset).Append(",").Append(gridHeight + marginTop);
}
else
{
sb.Append(" v").Append(barHeight);
}
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" z");
sb.Append("M").Append(dx).Append(",").Append(dy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
double nextdy, nextdx = dx + barWidth;
if (isStacked)
{
if (double.IsNaN(cumYs[j + 1]))
{
cumYs[j + 1] = gridBottom;
}
nextdy = (cumYs[j + 1] - gridHeight * (yValues[j + 1, i] - stackBase) / (maxValue - minValue));
}
else
{
nextdy = gridBottom - gridHeight * (yValues[j + 1, i] - minValue) / (maxValue - minValue);
}
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(nextdy - yOffset);
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" L").Append(dx).Append(",").Append(dy);
sb.Append(" M").Append(nextdx).Append(",").Append(nextdy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(gridHeight + marginTop);
}
else
{
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(cumYs[j + 1] - yOffset);
}
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" L").Append(nextdx).Append(",").Append(nextdy);
sb.Append(" M").Append(dx).Append(",").Append(dy);
sb.Append(" L").Append(nextdx).Append(",").Append(nextdy);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(nextdx).Append(",").Append(gridBottom);
sb.Append(" L").Append(dx).Append(",").Append(gridBottom);
}
else
{
sb.Append(" L").Append(nextdx).Append(",").Append(cumYs[j + 1]);
sb.Append(" L").Append(dx).Append(",").Append(
cumYs[j] + gridHeight * (yValues[j, i] - stackBase) / (maxValue - minValue));
}
sb.Append(" L").Append(dx).Append(",").Append(dy);
dx += barWidth;
}
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
SetExpandosOnElement(pathElem, -1, i, new Point());
if (DisplayToolTip)
{
pathElem.MouseMove += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0x7F);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
(pathElem.Data as PathGeometry).FillRule = FillRule.Nonzero;
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
ChartCanvas.Children.Add(pathElem);
}
}
private void _drawRadar()
{
ChartModel model = Model;
List <UIElement> dataElems = DataElements;
bool animate = (AnimationDuration > 0);
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
double cx = marginLeft + gridWidth / 2.0, cy = marginTop + gridHeight / 2.0;
double radius = Math.Min(gridWidth, gridHeight) / 2.0;
bool isRadarArea = (Type == Chart.ChartType.RADAR_AREA);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = isRadarArea ? lf.GetAreaPathXAML() : lf.GetLinePathXAML();
string lineDotXAML = null;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color [] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
string gradientXAML = lf.GetElementGradientXAML();
MatrixTransform defaultTransform = null;
int yValueCount = yValues.GetUpperBound(0) + 1;
double dx, dy;
if (!isRadarArea)
{
lineDotXAML = CurrentLookAndFeel.GetLineDotXAML();
}
if (animate && _dotElements == null)
{
_dotElements = new UIElement[seriesCount, yValueCount];
}
for (int i = 0; i < seriesCount; ++i)
{
StringBuilder sb = new StringBuilder();
for (int j = 0; j < yValueCount; ++j)
{
double yPoint = radius * (yValues[j, i] - minValue) / (maxValue - minValue);
dx = cx + yPoint * Math.Sin((j) * 2 * Math.PI / yValueCount);
dy = cy - yPoint * Math.Cos((j) * 2 * Math.PI / yValueCount);
if (j == 0)
{
sb.Append("M").Append(dx).Append(",").Append(dy);
}
else
{
sb.Append(" L").Append(dx).Append(",").Append(dy);
}
if (!isRadarArea)
{
Path dotElem = XamlReader.Load(lineDotXAML) as Path;
EllipseGeometry eg = dotElem.Data as EllipseGeometry;
eg.Center = new Point(dx, dy);
if (gradientXAML != null)
{
SetGradientOnElement(dotElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(dotElem, seriesColors[i]);
}
dotElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
if (animate)
{
_dotElements[i, j] = dotElem;
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = m.M22 = 0.0;
defaultTransform.Matrix = m;
dotElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
ChartCanvas.Children.Add(dotElem);
}
}
sb.Append("Z");
Path pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = m.M22 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
if (isRadarArea)
{
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0x72);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
}
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
(pathElem.Data as PathGeometry).FillRule = FillRule.Nonzero;
SetExpandosOnElement(pathElem, -1, i, new Point());
if (DisplayToolTip)
{
pathElem.MouseMove += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
ChartCanvas.Children.Add(pathElem);
}
}
