The graphic means to determine the oblique axes and the axial coefficient of foreshortening of an oblique stereograph 轴测体视图的轴测轴和轴向变形系数的图解法
Graphical symbols for piping systems - axonometric representation of graphical symbols for piping , piping accessories and valves etc 管路系统的图形符号管路管件和阀门等图形符号的轴测图画法
A new way to draw isometric projection drawing is suggested . this method has special and novel character , and has the special significance for to draw advertisement drawing and to draw isometric projection drawing 提出一种全新的正等轴测投影画法，该法独特新颖，画图简单，对广告宣传绘画、计算机画正等轴测投影图有较大的实用意义。
The obtained homographs can be employed to distinguish between surfaces with different characteristics , and to classify the surfaces of a planar object . regions in a line drawing and surfaces of an object are matched based on homographs 最后，提出了一种新的以面作为匹配基元从单幅轴测投影线图和单幅透视投影线图识别平面立体的方法。
The natural line drawing is the one with hidden - parts - eliminated . based on the correlative constraints between vertices and straight lines on a planar object , we have proposed a new recursive method for computer interpretation of line drawings under orthographically axonometric projection 在建立了相关约束关系式的基础上，提出一种基于点与直线的相对位置关系递归解释线框图的新方法，主要针对的是正轴测投影线框图的计算机解释。
It is introduced the representations of straight lines in two - dimensional plane and three - dimensional space , line drawing labeling , the theory and methods of computer interpretation of line drawings based on the relative position relationships of the vertices and the planes on a planar object 在已有基于点与平面的相对位置关系解释线框图研究成果的基础上，提出一种计算机递归解释线框图的方法，主要针对的是正轴测投影线框图的计算机解释。
This algorithm has high implementing speed and good reliability , because it makes use of opengl ' s high ability of process display buffer , deep buffer and stencil buffer efficiently . unlike the isometric projection algorithm this algorithm can display workpiece from any direction . 5 我们充分利用了opengl提供的高速处理颜色缓存、深度缓存和模板缓有的功能，使得实现的算法不仅运行速度快、稳定，而且克服了等轴测投影算法不能在任意角度显示工件加工过程的缺陷，具有一定的先进性。
In this thesis , six topological characteristics and geometry characteristics are proposed that are invariant under affine transformations and axonometric projection . the definition of homograph is given based on these characteristics , and then the recognizing method of the homograph is proposed according to the definition of homograph at the same time 其次，根据仿射不变性提出了6个用来描述多边形形状的拓扑特征和几何特征，这些特征在轴测投影下是不变的，以这些特征为约束条件给出了在轴测投影下类似形的定义。
