public void TestK(double expected)
{
Asymptote = new Asymptote(Function);
var got = Asymptote.K;
Assert.AreEqual(expected, got);
}
private static void RenderAsymptote(Graphics g, int xStart, int yStart, int ySize, double xScale, double yScale, Size imageSize, Graph graph, Asymptote asymptote)
{
Point start = new Point();
Point end = new Point();
if (asymptote.Axis == Axis.X)
{
start = new Point(graph.Style.LeftMargin + (int)((asymptote.Coordinate - xStart) * xScale), graph.Style.TopMargin);
end = new Point(graph.Style.LeftMargin + (int)((asymptote.Coordinate - xStart) * xScale), imageSize.Height - graph.Style.BottomMargin);
}
else
{
start = new Point(graph.Style.LeftMargin, (int)((ySize - asymptote.Coordinate + yStart) * yScale) + graph.Style.TopMargin);
end = new Point(imageSize.Width - graph.Style.RightMargin, (int)((ySize - asymptote.Coordinate + yStart) * yScale) + graph.Style.TopMargin);
}
if (asymptote.RenderCoordinate)
{
string s = asymptote.Axis.ToString() + " = " + asymptote.Coordinate;
if (asymptote.CustomName != null)
{
s = asymptote.CustomName;
}
StringFormat sf = new StringFormat();
if (asymptote.Axis == Axis.X)
{
sf.FormatFlags = StringFormatFlags.DirectionVertical;
}
g.DrawString(s, graph.Style.AsymptoteFont, new SolidBrush(asymptote.Color), new PointF(start.X + 10, start.Y + 10), sf);
}
g.DrawLine(new Pen(new SolidBrush(asymptote.Color)), start, end);
}
