/// <summary>
/// 使用线段绘图
/// </summary>
/// <param name="lines">线段集合</param>
/// <param name="size">模型尺寸</param>
/// <param name="imageWidth">图片宽度</param>
/// <param name="imageHeight">图片高度</param>
/// <param name="offsetX">x偏移量</param>
/// <param name="offsetY">y偏移量</param>
/// <returns></returns>
public static Bitmap ToImage(List <Vector2[]> lines, ModelSize size, int imageWidth, int imageHeight, int offsetX = 0, int offsetY = 0)
{
//对角线不应超出宽度
var fd = 1f;
//var diagonal = (float)Math.Sqrt(size.Width * size.Width + size.Height * size.Height);
//if (diagonal > imageWidth)
//{
//fd = imageWidth / diagonal;
//}
var fw = 1f;
var fh = 1f;
if (size.Length > imageWidth)
{
fw = imageWidth / (float)size.Length;
}
if (size.Height > imageHeight)
{
fh = imageHeight / (float)size.Height;
}
var f = Math.Min(fd, Math.Min(fw, fh));
var ow = imageWidth / 2f + offsetX;
var oh = imageHeight / 2f + offsetY;
var bmp = new Bitmap(imageWidth, imageHeight);
var g = Graphics.FromImage(bmp);
g.FillRectangle(new SolidBrush(Color.White), new Rectangle(0, 0, imageWidth, imageHeight));
foreach (var line in lines)
{
int x1 = Convert.ToInt32((line[0].X * f) + ow);
int y1 = Convert.ToInt32((line[0].Y * f) + oh);
int x2 = Convert.ToInt32((line[1].X * f) + ow);
int y2 = Convert.ToInt32((line[1].Y * f) + oh);
Point p1 = new Point(x1, y1);
Point p2 = new Point(x2, y2);
g.DrawLine(new Pen(new SolidBrush(Color.Red)), p1, p2);
}
bmp.RotateFlip(RotateFlipType.Rotate180FlipX);
return(bmp);
}
/// <summary>
/// 切片转图片
/// </summary>
/// <param name="slicedPlane">切片集合</param>
/// <param name="size">模型尺寸</param>
/// <param name="imageWidth">图片宽度</param>
/// <param name="imageHeight">图片高度</param>
/// <param name="offsetX">x偏移量</param>
/// <param name="offsetY">y偏移量</param>
/// <returns></returns>
public static List <Bitmap> ToImage(List <SlicedPlane> slicedPlane, ModelSize size, int imageWidth, int imageHeight, int offsetX = 0, int offsetY = 0)
{
var firstNormal = (slicedPlane.First().SlicePlane as CircleSlicePlaneInfo).Plane.Normal;
var images = new List <Bitmap>();
foreach (var sp in slicedPlane)
{
var lines = new List <Vector2[]>();
var info = sp.SlicePlane as CircleSlicePlaneInfo;
var origin = new Vector3(0, 0, 0);
if (info.Plane.D != 0)
{
origin = firstNormal * info.Plane.D;
}
var a = -info.Angle;
var q = Matrix4x4.CreateFromAxisAngle(info.Axis, a);
q.Translation = -origin;
foreach (var line in sp.Lines)
{
var s = Vector3.Transform(line.Start, q);
var e = Vector3.Transform(line.End, q);
//var s = To2D(sp,line.Start);
//var e = To2D(sp,line.End);
lines.Add(new Vector2[] {
new Vector2(s.X, s.Y),
new Vector2(e.X, e.Y)
});
}
var img = ToImage(lines, size, imageWidth, imageHeight, offsetX, offsetY);
images.Add(img);
}
return(images);
}
public static List <Bitmap> ToImage(List <SlicedPlane> slicedPlane, ModelSize size, int imageWidth, int imageHeight, int offsetX = 0, int offsetY = 0)
{
var firstNormal = (slicedPlane.First().SlicePlane as LinearSlicePlaneInfo).Plane.Normal;
var images = new List <Bitmap>();
foreach (var sp in slicedPlane)
{
var lines = new List <Vector2[]>();
var info = sp.SlicePlane as LinearSlicePlaneInfo;
foreach (var line in sp.Lines)
{
lines.Add(new Vector2[] {
new Vector2((float)line.Start.X, (float)line.Start.Z),
new Vector2((float)line.End.X, (float)line.End.Z)
});
}
var img = ToImage(lines, size, imageWidth, imageHeight, offsetX, offsetY);
images.Add(img);
}
return(images);
}