直线地

This algorithm lights five pixels in a loop between the coordinate information of line's start and end points. Therefore, the speedof generating of straight line can be accelerated. Compared with the four-step, it is the speed that increased by about 20% while the complexity is almost the same. Meanwhile the five-step still maintains the precise of the traditional line scan conversion algorithm.

该算法过给定的直线的始点和终点，可以一次计算得到并且点亮五个象素点，从而较传统的直线扫描转换算法成倍地提高了直线的生成速度，与著名的"四步法"相比，几乎没有增加复杂性，而速度则提高约20%，同时仍然保持传统直线扫描转换算法的精度。

Once Lion even saw several birds fly in line when he was in an airplane.

狮子还曾经在飞机上看见有几只鸟儿成一直线地飞翔。

The law of inertia was his starting-point; if this is changed, so are all his further conclusions.

原来是匀速直线地运动的圆球，现在尽量离开房子的中央而靠近房子的墙壁。

The bright fighter is frightened and flies upright in straightline from the right.

那架明亮的战斗机受到惊吓后呈直线地从右边垂直飞起来。

With the geometry, theory of errors and optimization principle used and the related national standard referred, a novel 3DLSA for evaluating the spatial straightness errors was proposed, so as to evaluate the spatial straightness errors effectively and to gain the error values with higher accuracy. Then,a mathematical model of the 3DLSA was deduced, true three-dimensional fitting of the spatial line was theoretically carried out.

为了有效地评定空间直线度误差，并得出正确度较高的误差值，运用几何学、误差理论和最优化原理，参照相关国家标准，提出了评定空间直线度误差的三维最小二乘算法（3DLSA），推导了3DLSA算法的数学模型，实现了空间直线的三维拟合。

This kind of title is carrier with knowledge of linear, round conic perhaps curve mostly, the knowledge such as integrated function, inequality, triangle, series, involved intellectual feature is more, be in again check thinking ability, the knowledge that asks examinee can combine what had mastered to concern linear, round, conic curve and method, the problem that faces on or data have observation, quite, analysis, integrated, abstraction and wraparound; can use analogy, induce and deduce undertake inferential; undertake well and truly stating.

这类题目大都以直线、圆或者圆锥曲线知识为载体，综合函数、不等式、三角、数列等知识，涉及的知识点较多，重在考查思维能力，要求考生能够结合已经把握的有关直线、圆、圆锥曲线的知识和方法，对面临的新问题或资料进行观察、比较、分析、综合、抽象和概括；会用类比、归纳和演绎进行推理；能合乎逻辑地、准确地进行表述。

As the most important factor in the proposed calibration methods, vanishing point are addressed through the whole paper.

该方法既不需要将直线投影到球面坐标，也不需要对大量直线作统计特性分析，当存在大量多余直线观测时，这种平差方法可快速、准确地计算出灭点的最优位置。

Adult geese are often seen leading their goslings in a line with one parent at the front, and the other at the back of the "parade".

成年的加拿大雁多数会领著小雁成直线地飞，并由一只较成年的带在队伍的最前方，其他则在队伍的后面。

The bright fighter is f rightened and flies upright in straight line from the ri ght.

那架明亮的战斗机受到惊吓后呈直线地从右边垂直飞起来。

In fact, Computer Graphics indicate the developmental level of the Computer software and hardware, This is because Graphics have become the most important medium to transfer all kinds of information. Computer Graphics?research object is graphics, and the point , line and surface make up of the graphics ,In addition, During the real application, every graphics is made up of millions of the lines and curves, the speed and quality of the line and curve affected the implement of the whole graphics.

计算机图形学的研究对象是图形，而构成图形的几何要素就是刻画形状的点、线、面、体等，并且在具体应用中，每一幅图形都由成百上千条直线和曲线构成，这样对于每一条直线或曲线的处理速度和质量极大地影响着整幅图形的处理速度和质量，因此，对于计算机图形学基础算法的研究就具有重要意义，本文就是对计算机图形学的基础算法进行研究，包括直线和曲线的生成和裁剪算法以及基本象素的图形变换。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。