c# 画3D报表

1. 创建一位图

    int bmWidth = 425; // 图片的宽
    int bmHeight = 185; // 图片的高
    Bitmap bm = new Bitmap(bmWidth,bmHeight);  //创建位图
    Graphics g = Graphics.FromImage(bm);

2.画矩形图

    int xPoint, yPoint; // 矩形左上角x,y坐标
    xPoint = 135;
    yPoint = 15;
    int width = 250; //矩形的宽
    int height = 125; //矩形的高
    int xP = 30; // x比例
    int yP = 15; // y比例
    g.DrawRectangle(new Pen(Brushes.Silver, 1),xPoint,yPoint,width,height); // 矩形

可以根据矩形图的长，宽定义下一步要画的图形与此矩形的关系，这样开始画直线

    g.DrawLine(new Pen(Brushes.Silver, 1),xPoint,yPoint,xPoint-xP,yPoint+yP); // 左上直线 
    g.DrawLine(new Pen(Brushes.Silver, 1),xPoint,yPoint+height,xPoint-xP,yPoint+height+yP); // 左下直线
    g.DrawLine(new Pen(Brushes.Silver, 1),xPoint-xP,yPoint+yP,xPoint-xP,yPoint+height+yP); // 左面直线
    g.DrawLine(new Pen(Brushes.Silver, 1),xPoint-xP,yPoint+height+yP,xPoint-xP+width,yPoint+height+yP); // 前面直线
    g.DrawLine(new Pen(Brushes.Silver, 1),xPoint+width,yPoint+height,xPoint-xP+width,yPoint+height+yP); // 右面直线

或

//            Point[] points = new Point[]{new Point(xPoint,yPoint), new Point(xPoint,yPoint+120),new Point(xPoint-30,yPoint+135),
//                                        new Point(xPoint-30,yPoint+15)};
//            g.DrawPolygon(new Pen(Brushes.Silver, 1),points);

3.
大致框架已构建好了，现在开始画柱状图

    pY = barValues[i]/xValues[xValues.Length-1];
                width = int.Parse((265*pY).ToString("0")); // 柱形的长
                g.DrawRectangle(new Pen(Brushes.Black, 1),xPoint-30,yPoint+15+10+yHeight*i+ySpace*i,width,24);
                g.FillRectangle(brush[i],xPoint-30,yPoint+15+10+yHeight*i+ySpace*i,width,24);
                points = new Point[]{new Point(xPoint-30+width,yPoint+15+10+yHeight*i+ySpace*i), //左上
                                        new Point(xPoint+width,yPoint+10+yHeight*i+ySpace*i), //右上
                                        new Point(xPoint+width,yPoint+10+24+yHeight*i+ySpace*i), //右下
                                        new Point(xPoint-30+width,yPoint+15+10+24+yHeight*i+ySpace*i) // 左下
                                    };
                g.DrawPolygon(new Pen(Brushes.Black, 1),points);
                g.FillPolygon(brush[i],points);
                points2 = new Point[]{new Point(xPoint-30,yPoint+15+10+yHeight*i+ySpace*i), //左上
                                            new Point(xPoint,yPoint+10+yHeight*i+ySpace*i), //右上
                                            new Point(xPoint+width,yPoint+10+yHeight*i+ySpace*i), //右下
                                            new Point(xPoint-30+width,yPoint+15+10+yHeight*i+ySpace*i) // 左下
                                        };
                g.DrawPolygon(new Pen(Brushes.Black, 1),points2);
                g.FillPolygon(brush[i],points2);

现在已基本完成
源码