public Image drawChart(List<Polar> pValues, Polar max, Polar min, int type)
{
// Setup Graphics
Image image = new Bitmap((int)(DIAGRAMWIDTH * 1.4), (int)(DIAGRAMHEIGHT * 1.4));
// compute scale
xScale = (float)((DIAGRAMWIDTH - XBORDER) / 90.0);
top = NextHigher.get(max.r);
bot = 0;
if (min.r < 0) { bot = - NextHigher.get(-min.r); }
yScale = (DIAGRAMHEIGHT - YTOPBORDER - YBOTBORDER) / (top + Math.Abs(bot));
Graphics graphics = Graphics.FromImage(image);
graphics.PageUnit = GraphicsUnit.Point;
g = new GGraphics(graphics, 1, 0, 0);
drawBakground(type);
foreach (Polar p in pValues)
{
float x = transposeX(p.aDeg);
float y = transposeY(p.r);
g.drawPointAbsolute(pointBrush, x, y);
}
return image;
}
private void setup(bool zoomed)
{
CompGeometry cg = new CompGeometry();
F = Data.dFlankRadius; // flank radius
B = Data.dBaseRadius; // base radius
L = Data.dLift; // lift
N = Data.dNoseRadius; // nose radius
if (zoomed)
{
unitsPerInch = 72;
diagramSize = 10f * unitsPerInch;
image = new Bitmap(962, 962);
}
else
{
unitsPerInch = 72;
diagramSize = 4f * unitsPerInch;
//image = new Bitmap(480, 480);
image = new Bitmap(385, 385);
}
// Compute diagram height
float camHeight = (float)(2 * (B + L));
float camRoundedHeight = NextHigher.get(camHeight * 1.1);
float scale = diagramSize / camRoundedHeight;
gridSize = diagramSize / 10 / scale;
// OriginX/Y is centre of base circle
float originX = gridSize * 5;
// Number grid squares to accomodate base radius
float baseSquares = (float)(Math.Ceiling(B / gridSize));
float originY = gridSize * 5; // (float)((10 - baseSquares) * gridSize);
Graphics graphics = Graphics.FromImage(image);
graphics.PageUnit = GraphicsUnit.Point;
g = new GGraphics(graphics, scale, originX, originY);
}