Second, we used to find out the intersect lines of shell and nozzles by the means of projection transform.
二是以往通常用投影转换的方法来求得筒体和接管的相贯线，这种方法放样困难、繁复且精度不高。
Utilizing the extended library provided by ERDAS IMAGINE, and by using the self-defined spheroid IAG75 the projection transform of raster data is achieved successfully.
此方法利用ERDASIMAGINE的扩展库自定义新的投影椭球，用自定义的投影椭球对栅格数据成功地进行了投影变换。
A new approach for handwritten Chinese character recognition based on multiple hidden Markov model classifiers and sub-region projection transform is proposed in the thesis.
文章提出了一种基于多重隐马尔可夫模型和区域投影变换的手写体汉字识别新方法。
In order to satisfy the different needs of submarine navigated performance in the different navigation steps, the fast terrain matching algorithm based on radial projection transform is presented.
根据多波束声纳地形匹配导航中不同阶段对匹配性能的不同要求，提出了基于径向投影变换的快速地形匹配方法。
Then, the basic principles of drawing 3d graph by computer are discussed, particularly explained the fundamental theory of coordinate transform, projection transform and light model.
对三维图形计算机显示的基本原理进行了讨论，详细介绍了坐标系变换、投影变换和明暗处理及光照模型的基本原理。
Then, the basic principles of drawing 3d graph by computer are discussed, particularly explained the fundamental theory of coordinate transform, projection transform and light model.
对三维图形计算机显示的基本原理进行了讨论，详细介绍了坐标系变换、投影变换和明暗处理及光照模型的基本原理。
应用推荐