1) Mercator projection
墨卡托投影
1.
By Mercator projection,the geographical coordinates of the ship can be transformed to plane rectangular coordinate,then to the screen coordinate.
通过墨卡托投影,将船舶所处位置地理坐标转换平面坐标,再由平面坐标转换为屏幕坐标,同时将海图按Inmarsat系统作用区域进行划分,推导出每块区域边缘曲线公式,从而可以判断出该船所在的洋区以及与卫星之间的距离,以选择对应卫星进行通信。
2.
In hydrographic sweeping survey,considering that the surveyed route in design project description is a longer route which is composed of two geodetic coordinates,methods of Mercator projection,UTM(Universal Transverse Mercator) projection and Gauss-Kruger projection were adopted to eliminate the direction deviation of sweeping survey,and conform to the conventional way of sweeping survey as well.
在海道扫测工作中,考虑到设计任务书中的扫测航路是由两点大地坐标组成的较长路线,利用墨卡托投影和UTM投影及高斯-克吕格投影方式既能消除扫测航向的偏差,又能符合常规扫测方法。
3.
In order to solve the problem of chart projection transformation among all projections in shiphandling simulator,using the theory of power series spreading out and the method of trigonometric power series calculating back, a direct and reverse solving algorithm models of meridian arc length, and Gauss projection and Mercator projection transforming algorithm are introduced in this paper.
为了解决船舶操纵模拟器中不同投影方式海图的投影变换问题 ,应用幂级数展开理论和三角级数回求方法 ,给出了子午线弧长、等量纬度的直接正反解算法模型及高斯投影与墨卡托投影的相互转化算法 。
3) mercator's projection
墨下托投影;墨卡托投影
4) equidistance Mercator projection
等距墨卡托投影
5) Transverse Mecator Projection
横轴墨卡托投影
1.
There are three popular map projections in Antarctica-Polar Stereographic Projection, Transverse Mecator Projection and Lambert Conformal Conic Projection.
南极地区常用的地图投影方式有 :极方位立体投影、横轴墨卡托投影、兰伯特正形圆锥投影等三种等角投影。
6) Mercator Projection Transformation
墨卡托投影变换
补充资料：墨卡托投影
mercator's projection
又称正轴等角圆柱投影。圆柱投影的一种，由荷兰地图学家墨卡托（g. mercator）于1569年创拟。为地图投影方法中影响最大的。
设想一个与地轴方向一致的圆柱切于或割于地球，按等角条件将经纬网投影到圆柱面上，将圆柱面展为平面后，得平面经纬线网。投影后经线是一组竖直的等距离平行直线，纬线是垂直于经线的一组平行直线。各相邻纬线间隔由赤道向两极增大。一点上任何方向的长度比均相等，即没有角度变形，而面积变形显著，随远离标准纬线而增大。该投影具有等角航线被表示成直线的特性，故广泛用于编制航海图和航空图等。
墨卡托投影在切圆柱投影与割圆柱投影中，最早也是最常用的是切圆柱投影。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条