private void RecreateSymbols()
{
NColor color = m_ColorBox.SelectedColor;
double length = InitialSize * Math.Pow(2, m_RadioGroup.SelectedIndex);
NSize size = new NSize(length, length);
m_SymbolsTable.Clear();
// Create a triangle up symbol
NPolygonSymbolShape shape = new NPolygonSymbolShape(new NPoint[] {
new NPoint(0, size.Height),
new NPoint(size.Width * 0.5, 0),
new NPoint(size.Width, size.Height)
}, ENFillRule.EvenOdd);
shape.Fill = new NColorFill(color);
NSymbol symbol1 = new NSymbol();
symbol1.Add(shape);
AddSymbolBox(symbol1, "Triangle Up");
// Create a rectangle with an ellipse
NRectangleSymbolShape rectShape = new NRectangleSymbolShape(0, 0, size.Width, size.Height);
rectShape.Fill = new NColorFill(color);
NEllipseSymbolShape ellipseShape = new NEllipseSymbolShape(size.Width / 4, size.Height / 4,
size.Width / 2, size.Height / 2);
ellipseShape.Fill = new NColorFill(color.Invert());
NSymbol symbol2 = new NSymbol();
symbol2.Add(rectShape);
symbol2.Add(ellipseShape);
AddSymbolBox(symbol2, "Rectangle with an ellipse");
}