平面直角坐标系 meaning in English
cartesian plane
xy-coordinate system
Examples
- 3 . for geographic coordinates and cartesian coordinates transformation a model that include 7 parameters and the guess - kruger projection were used . the difference of calculation between the above method and trimble tgo software is less than 1cm
选用了7参数布尔莎模型进行wgs - 1984空间直角坐标系与北京1954空间直角坐标系之间的转换；使用了高斯-克里格投影进行大地坐标系与平面直角坐标系之间的转换。 - For displaying the initial date aquired from sea chart correctly in three different display modes ( relative head up motion , relative north up motion , true north up motion ) , a series of coordinate conversion are necessary . in the second chapter , data structure and various coordinates conversion are discussed in details
要使从海图录入的原始数据能够在3种不同的显示方式(船首向上的相对运动显示方式、北向上的相对运动显示方式和北向上真运动显示方式)下正确的显示出来，必然要在几个坐标系(图板坐标系、屏幕坐标系、平面直角坐标系和地理坐标系)中进行一系列的坐标变换。 - In the chapter 3 , it mainly deduces the mathematic models of six factors of the target ship and the problems of " given point " and " well - timed point " in the plane orthogonal reference frame . also it can calculate the standard results of each assessment factor by means of these mathematic models
第三章主要是在雷达标绘平面直角坐标系中，推导出目标船六要素、 “预定点”问题和“时机点”问题的数学解析模型，武汉理厂大学硕十学位论文并且通过这些数学模型计算出各个评估要素的标准值。 - Then the equations of elastic problem are imported into the hamilton system in the plane right - angle coordinate system and a new symplectic numerical method , the symplectic difference method of elasticity in hamilton system , is put up based on the mixed equation of elastic problem . the arithmetic of the method is programmed and used in the solution of three problems of elasticity , which is sheet problem , simply girder problem and deep girder p roblem that is pressed equally in the right - angle coordinate system
然后在平面直角坐标系下将弹性力学问题引入到hamilton体系中来，针对弹性力学混合方程建立了一种新的辛型数值计算方法? ?基于hamilton体系的弹性力学辛差分方法；并且编程实现了该方法的算法结构，计算了三个具体的算例：受均布载荷的薄板问题、简直梁问题和深梁问题。