rvt2obj

鸟瞰图矫正，从倾斜角度矫正成正面图像，实现平面图像的鸟瞰矫正(bird-view,from tilt angel to jiaozheng image)

土木工程-边坡工程-离散元3dec软件-边坡的建模和安全系数求解的命令流(Civil Engineering- Slope- Discrete Element 3dec software- modeling and solving safety factor of order flow)

说明：  基于Direct3d的图形学入门代码，9个星球的自转公转，矩阵变换的运用基础(The use of graphics-based foundation Direct3d entry code, nine planets revolve rotation matrix transformation)

四步相移法程序和最小二乘法相位解包裹程序，已经验证，此方法比较不错。(Four step phase-shift method program and least squares phase solution package, have validation, this method is good. )

说明：  访问最底层LOD模型路径，打开后获取顶点数据和PirmitiveSet，重绘模型的三角面片(Visit the bottom LOD model path, open it, get vertex Array and PirmitiveSet, and redraw the triangle of the model.)

说明：  本编程用于求解点到曲面的距离，快捷便利。(Solving the Distance from Point to Surface)

该程序为立体空间内艾里光束的传播，使用角谱传播定理(The program for the Airy beam propagation in three-dimensional space, using the angular spectrum propagation theorem)

osg粒子子系统例子,一个是简单的粒子系统，另一个是烟(the example of particle sysytem in OSG)

计算单应矩阵，输入为2D图像坐标点和3D世界坐标点，输出为3x3单应矩阵(Calculate homography)

直接运行TestMyCrust.m, 读取点云txt,或者直接加载mat文件 运行需要几分钟，耐心等待 完成后运行trianglenormal.m, 生成三角面片的法向量 运行完成得到tri.txt（组成三角面片的点的编号信息）,trinormal.txt(每个三角面片法向量数值)，diandian.txt(每个点云信息) 然后将三个数据当做stl_gen.exe的输入文件，得到trisuface.stl文件(run TestMyCrust.m, read point cloud file txt, or load mat file)