A map projection is any method used in cartography to represent the two-dimensional curved surface of the earth or other body on a plane .

在制圖學(xué)中免费的三级网址，任何將地球的二維曲面表達(dá)為平面的方法都可以被稱為地圖投影。

The selection of map projection is very important for the production of maps. Its primary task is to decide the mapping equations for the coordinate conversion from the sphere to the plane.

制作地圖過(guò)程中人人操人人插人人摸人人人人玩，選擇投影是一個(gè)重要的程序美女黄色观看，它主要任務(wù)系決定制圖區(qū)從球面轉(zhuǎn)換至平面的制圖方程式。

By the method of electril charge projection the expression of charge density and field intensity on midperpendicular plane on a conductive plate are given.

利用電荷投影方法亚洲日韩专区网站，給出導(dǎo)體薄板上電荷密度的表示式和中垂面上場(chǎng)強(qiáng)分布韩国精品无码永久在线观看。

Place the face of the object containing circles or arcs parallel to the projection plane.

應(yīng)使有圓形或圓弧的面與軸測(cè)投影面平行。

Place the longest dimension of the object containing circles or arcs parallel to the projection plane.

應(yīng)使物體的最長(zhǎng)尺寸結(jié)構(gòu)與軸測(cè)投影面平行操逼亚洲色。

Project both the object and the coordinate system of the three-view system to the P-plane with parallel projection such that the new projected drawing simultaneously reflects three coordinate

當(dāng)?shù)耐渡浞较虺?8人妻，將物體連同確定投影法投射到P平面上，使所得到的投影圖能反映出三個(gè)坐標(biāo)面

Distortion discipline of line heating for automatic processing is researchedThe main influence factors of shell plate forming by line heating are analyzed. Based on the analysis of measured data processed by the experiment machine of line heating, thickness of plate, length of heating line, processing speed and shrinkage are regarded as 4 dimensions, and the methods of vectors mapping, plane projection and conversion of coordinates are used to build mathematical models for local surface shrinkage of different thickness and processing parameters.

1研究了自動(dòng)化加工水火彎板變形規(guī)律分析了水火彎板加工成型的主要影響參數(shù)亚洲欧美制服中文字幕，在對(duì)水火彎板實(shí)驗(yàn)機(jī)加工測(cè)量數(shù)據(jù)分析的基礎(chǔ)上在线观看国内精品va，以板厚、加熱線長(zhǎng)度一本到东京、加工速度和收縮量作為4個(gè)維度黄色网站毛片，應(yīng)用向量映射，平面投影黄视频色网站、坐標(biāo)轉(zhuǎn)換方法建立了不同鋼板厚度的局部表面收縮量和加工參數(shù)的數(shù)學(xué)模型最新最近中文字幕视频。

Every row of the projection plane is divided into some sections.

將投影平面的每一行分成由若干個(gè)像素組成的區(qū)間。

This model is deducted from the coordinate's transformation in three-dimension world. It obeys the principle of perspective projection plane transformation.

該模型從一般三維空間坐標(biāo)變化出發(fā)性爱无码视频专区，根據(jù)透視投影的原理美女网站视频免费国产，進(jìn)行推導(dǎo)和簡(jiǎn)化，最終得到自由度為8的運(yùn)動(dòng)模型看欧洲黄色视频。

This paper presents the dynamic controlling method of stream lines on axial plane projection of the hydraulic model and square grid of the blade drawing of the pump impeller. The ideas and methods of the application of Bezier curve in impeller CAD are analyzed in detail.

提出采用Bezier曲線解決水泵葉輪水力模型軸面投影流線及葉片繪型的方格網(wǎng)流線的動(dòng)態(tài)調(diào)控方法内地自拍日韩精品视频在线，詳盡地分析了在葉輪CAD中應(yīng)用Bezier曲線的具體思路與方法。