protected ChartCore(IChartView view, ChartUpdater updater)
{
View = view;
Updater = updater;
DrawMargin = new CoreRectangle();
DrawMargin.SetHeight += view.SetDrawMarginHeight;
DrawMargin.SetWidth += view.SetDrawMarginWidth;
DrawMargin.SetTop += view.SetDrawMarginTop;
DrawMargin.SetLeft += view.SetDrawMarginLeft;
}