Question

我目前正在处理一个3d bin打包问题，我希望将结果表示为图像。

我将结果存储为包装对象列表，如下所示

public class LoadedPackage
{
     private PackingObject packingObject;
     private int xloc, yloc, zloc;
     private bool flipped = false;
}

public class PackingObject
{
     private int ID, checkerMaster, height, width, depth, number;
}

我想使用xloc，yloc，zloc和尺寸一次绘制包1以构建图像。是否有某种图像库方式可以做到这一点，或者我将被迫使用openGL解决方案，这对我来说只是一个简单的图像看起来有点过分。

我在考虑使用2d gdi lib的等轴测法

Answer 1

最后，我选择了等距方法，并为每个包添加了一个方法，将自身从3d坐标转换为等距。我希望以下代码可以帮助其他有类似困境的人！

等距立方体有6个点，所以我返回6个点的数组。实际上我使用3个子方法返回3个等距多边形以供GDI lib处理但是为了这个答案，我将发布更一般的6点方法。

    public PointF[] convertCoords()
    {
        float x;
        float y;
        PointF p;
        PointF[] pointFs = new PointF[7];
        int x1 = 0;
        int y1 = 0;
        int z1 = 0;

        double rads = Helpers.DegreeToRadian(30);

        //point 0 in iso
        x = ((float)Math.Cos(rads) * xloc) + ((float)Math.Cos(rads) * yloc);
        y = ((float)Math.Sin(rads) * yloc) + zloc - ((float)Math.Sin(rads) * xloc);
        y = (-y) + 250;

        p = new PointF(x,y);
        pointFs[0] = new PointF(p.X,p.Y);
        //point 1 in iso
        x1 = xloc + packingObject.Depth;
        y1 = yloc;
        z1 = zloc;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = ((float)Math.Sin(rads) * y1) + z1 - ((float)Math.Sin(rads) * x1);
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[1] = new PointF(p.X, p.Y);
        //point 2 in iso
        x1 = xloc + packingObject.Depth;
        y1 = yloc;
        z1 = zloc + packingObject.Height;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = (-((float)Math.Sin(rads) * x1)) + ((float)Math.Sin(rads) * y1) + z1;
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[2] = new PointF(p.X, p.Y);
        //point 3 in iso
        x1 = xloc;
        y1 = yloc;
        z1 = zloc + packingObject.Height;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = (-((float)Math.Sin(rads) * x1)) + ((float)Math.Sin(rads) * y1) + z1;
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[3] = new PointF(p.X, p.Y);
        //point 4 in iso
        x1 = xloc;
        y1 = yloc + packingObject.Width;
        z1 = zloc + packingObject.Height;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = (-((float)Math.Sin(rads) * x1)) + ((float)Math.Sin(rads) * y1) + z1;
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[4] = new PointF(p.X, p.Y);
        //point 5 in iso
        x1 = xloc + packingObject.Depth;
        y1 = yloc + packingObject.Width;
        z1 = zloc + packingObject.Height;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = (-((float)Math.Sin(rads) * x1)) + ((float)Math.Sin(rads) * y1) + z1;
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[5] = new PointF(p.X, p.Y);
        //point 6 in iso
        x1 = xloc + packingObject.Depth;
        y1 = yloc + packingObject.Width;
        z1 = zloc;

        x = ((float)Math.Cos(rads) * x1) + ((float)Math.Cos(rads) * y1);
        y = (-((float)Math.Sin(rads) * x1)) + ((float)Math.Sin(rads) * y1) + z1;
        y = (-y) + 250;

        p = new PointF(x, y);
        pointFs[6] = new PointF(p.X, p.Y);

        return pointFs;
    }

使用绘图库代表3d对象asp.net c＃

1 个答案: