扫描线

This is a computer graphics to fill the graphics algorithms, including seeds filling simple filling algorithm and scanning fill algor...

这是一个计算机图形学中图形填充的算法，包括种子填充中简单填充算法和扫描线填充算法！

The layout of body measurement paths and apartness of point cloud data are attempted for new study.

探讨了扫描线和散乱点云数据的预处理技术，对点云数据自动滤波和交互滤波技术，随机采样和网格化数据精简进行了研究，总结出具有实效性的预处理方法。

The use of OpenGL to achieve the scan line blanking technology.

详细说明：利用OpenGL实现的扫描线消隐技术。

Objective To discuss the question of obliguity and designate the reverse gantry CT scan and find a method which can be applied to oruebtation of centrum.

目的 探讨反角度CT扫描技术中扫描线的倾角问题及其称呼问题，确定一种能适用于各种椎体的扫描定位方法。

VS2005 done based on scan line fill algorithm, in the view window arbitrary painting a closed region can be achieved in the region filled.

详细说明：基于vs2005做的扫描线填充算法，在视图窗口任意画一个封闭区域，可以实现对该区域的填充。

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题；为处理一些特殊的拓扑关系情况，提高扫描线算法的效率，探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法；同时还设计了一种新的节点微小圆求交的算法，可应用于图斑与线状地物细分拓扑关系及地类面积的计算；（5）本文设计了实验系统，包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能，以及时空拓扑关系和变化语义分析等原型，验证了拓扑关系表达模型和计算方法的可行性和实用性。

In chapter 6 and 7, having discussed the description method of the shape of bube-bent part and it's CSG data structure, a 3-D shape description method of using boolean operation by cyclinder and torus primitives is proposed.

第六章和第七章分别探讨了管材弯曲件三维描述方法及其CSG数据结构，提出了采用圆柱体素与圆环体素，通过适当布尔运算来描述其三维形状，并实施区间CSG扫描线和光线跟踪算法，在微机上实现了管材弯曲件三维浓淡图形的生成。

The data lines are parallel to each other and intersect with the scan lines to demarcate pixel regions.

资料线彼此平行排列并与扫描线相交以围出的多个画素区域。

In computer graphics, a predetermined pattern of lines, that provides uniform coverage of a display space.

在计算机图形学中，提供显示空间均匀覆盖面的预定扫描线图案。

For the balling of scanning line, the process parameters with the ratio of power to scanning speed greater than 0.10 are employed to form a continuous scanning line.

对于扫描线的球化，采用功率与扫描速度的比值大于0.1的工艺参数进行扫描，获得了连续的扫描线。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。