public ChartBase(Report r, Row row, Chart c, MatrixCellEntry[,] m, Expression showTooltips, Expression showTooltipsX,Expression _ToolTipYFormat, Expression _ToolTipXFormat)
{
_ChartDefn = c;
_row = row;
_DataDefn = m;
_bm = null;
int width = _ChartDefn.WidthCalc(r, null);
int height = RSize.PixelsFromPoints(_ChartDefn.HeightOrOwnerHeight);
Layout = new ChartLayout(width, height);
_SeriesBrush = null;
_SeriesMarker = null;
_showToolTips = showTooltips.EvaluateBoolean(r, row);
_showToolTipsX = showTooltipsX.EvaluateBoolean(r, row);
_tooltipYFormat = _ToolTipYFormat.EvaluateString(r, row);
_tooltipXFormat = _ToolTipXFormat.EvaluateString(r, row);
}
