public void Eat(Circle e)
{
x0 = Math.Min(x0, e.x - e.r);
y0 = Math.Min(y0, e.y - e.r);
x1 = Math.Max(x1, e.x + e.r);
y1 = Math.Max(y1, e.y + e.r);
}
static void Main(string[] args)
{
if (args.Length < 4) {
Console.Error.WriteLine("dxf2bmp input.dxf output.bmp cx cy ");
Environment.Exit(1);
}
using (StreamReader rr = new StreamReader(args[0], Encoding.Default)) {
IEater eater = null;
List<IEater> al = new List<IEater>();
while (true) {
String row0 = rr.ReadLine();
String row1 = rr.ReadLine();
int ty;
if (row1 == null || !int.TryParse(row0.Trim(), out ty))
break;
if (ty == 0) {
if (false) { }
else if (row1 == "LINE") al.Add(eater = new Line());
else if (row1 == "CIRCLE") al.Add(eater = new Circle());
else eater = null;
}
else if (eater != null) {
eater.Eat(ty, row1);
}
}
BBox bbox = new BBox();
{
foreach (var q in al.Where(p => p is Line).Cast<Line>()) bbox.Eat(q);
foreach (var q in al.Where(p => p is Circle).Cast<Circle>()) bbox.Eat(q);
}
bbox.InflateRate(0.02f, 0.02f);
using (Bitmap pic = new Bitmap(int.Parse(args[2]), int.Parse(args[3]))) {
using (Graphics cv = Graphics.FromImage(pic)) {
cv.TranslateTransform(0, pic.Height);
cv.ScaleTransform(1, -1);
cv.SmoothingMode = SmoothingMode.HighQuality;
CBox cb = new CBox(pic.Width, pic.Height, bbox);
cv.Clear(Color.White);
foreach (IEater eat in al) {
if (eat is Line) {
Line t = (Line)eat;
cv.DrawLine(
new Pen(t.color),
(float)cb.X(t.x0),
(float)cb.Y(t.y0),
(float)cb.X(t.x1),
(float)cb.Y(t.y1)
);
}
else if (eat is Circle) {
Circle t = (Circle)eat;
cv.DrawEllipse(
Pens.Black,
RectangleF.FromLTRB(
(float)cb.X(t.x - t.r),
(float)cb.Y(t.y - t.r),
(float)cb.X(t.x + t.r),
(float)cb.Y(t.y + t.r)
)
);
}
}
#if false
cv.FillRectangle(
new LinearGradientBrush(new Point(0, 0), new Point(pic.Width, pic.Height), Color.Black, Color.Gray),
new RectangleF(PointF.Empty, pic.Size)
);
cv.DrawString(
"A DXF thumbnail",
new Font(FontFamily.GenericSerif, 8),
Brushes.WhiteSmoke,
new RectangleF(PointF.Empty, pic.Size)
);
#endif
}
pic.Save(args[1], System.Drawing.Imaging.ImageFormat.Bmp);
}
}
}
