The nine elements of the matrix are products of cosines of angles between the direction of a streamline at a point and the coordinate axis . 這矩陣的9個元素系一點的流線方向和座標軸之間夾角余弦的乘積。
Computes a coordinate axis - oriented bounding box 計算用坐標軸定向的邊界框。
Body coordinate axis 車身坐標軸線
Both movement and viewpoint are situated in the same coordinate system , which is made up of three coordinate axises : person , time and space 摘要運動與視點共處于一個座標體系中,該座標體系由人稱、時間、空間三維組成。
Relative to the object s local coordinate axis , this is equivalent to rotation around the z - axis , followed by rotation around the x - axis , followed by rotation around the y - axis 相對于對象的局部坐標軸,此轉換等效于首先圍繞z軸旋轉,然后圍繞x軸旋轉,最后圍繞y軸旋轉。
Abstract : this paper covers the set - up of the space coordinate axis of the ring - fork u - joint , and through the analysis of the additional moment in the ring - fork u - joint it presents how the value of the additional moment is obtained 文摘:本文用空間解析幾何法建立了環(huán)叉式萬向節(jié)的空間坐標系,并對環(huán)叉式萬向節(jié)的附加力矩進行分析,得出了附加力矩的數(shù)學表達式。
In order to break through the disadvantage of traditional theory , the thesis bring forward the layer index analysis ( lia ) , including the consumer ’ s psychology , advertising psychology , stp tactics . at first , we should set the coordinate axis layer index which make certain the direction of advertising . second , we aim at the targeted consumers to analyze the media arrive , advertising arrive , mind change , purchasing behaviors through the quadrant layer index 為突破傳統(tǒng)理論的不足,本文提出層級指標分析,從消費者的消費心理、廣告心理,運用stp戰(zhàn)略,加以系統(tǒng)地分析和整理,首先得出針對目標顧客的坐標軸層級指標,確定廣告制作和投放的方向和目標;然后再針對具體目標顧客的廣告接受心理和媒體接觸習慣,按照媒體到達、廣告到達、心理改變、購買行動進行象限層級指標的分析,從而準確把握廣告的投放效果,為企業(yè)的品牌提升和營銷戰(zhàn)略實施有效的配合。
The calculation formula of seepage tensor to the model of non - linear seepage with the area of karst conduit in the whole coordinate axis is deduced . on the basis of galerkin finite element method , the equation of finite element with the non - linear seepage of groundwater is educed , on the foundation of this information , the program of karcon . for is compiled 推導出整體坐標系下巖溶管道區(qū)非線性滲流模型滲透張量計算公式,基于galerkin有限元法,導出了地下水非線性滲流的有限元方程,在此基礎上編制了計算程序karcon . for ,將該程序用于典型模型的計算分析,結果表明該方法是合理的。
On views separation and coordinate standardization , a coordinate axis projection - based approach and an image scanning - based approach are proposed for views separation , the former reduces the compare times of 2d primitive in drawings and raises the efficiency simultaneously , the latter can separate free nember views of engineering drawing accurately and it has no correlation with complexity of primitive , then , two sets of 2 . 5d coordinate systems are introduced as intermediates to relate the 2d original drawing system to the 3d space projection coordinates anfd a formal technique is developed for constructing transformation matrices between coordinates 3 .在工程圖視圖分離和坐標規(guī)格化方面,提出了改進的坐標軸投影分離算法和基于圖像掃描的視圖分離算法。前者減少了工程圖中二維實體的比較次數(shù),提高了運行效率;后者可以準確分離具有任意視圖數(shù)目的工程圖,且算法的穩(wěn)定性與邊界復雜度無關。通過引入二維半中間坐標系推導出了從繪圖坐標系到空間投影坐標系轉換的轉換算子并給出了基于轉換算子的坐標規(guī)格化算法。
By the help of geometric significance of plane or space curve and space surface , and by use of the symmetry of curve and surface to coordinate axis and coordinate surface , how to use the symmetry to calculate the surface integral and curve integral is discussed for the odd ( even ) functions that are defined on the curve or surface with symmetry 摘要借助于(平面)空間曲線及空間曲面的直觀幾何意義,利用曲線、曲面關于坐標軸及坐標面的對稱性,探討了對于定義在具有對稱性的曲線、曲面上的奇(偶)函數(shù),如何利用對稱性計算曲線積分及曲面積分。