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Methods and apparatus for dynamically labeling map objects in visually displayed maps of mobile communication devices

机译:在移动通信设备的可视显示地图中动态标记地图对象的方法和设备

摘要

A method of displaying a map on a wireless communications device includes steps of obtaining map data for rendering the map to be displayed on the wireless communications device, generating corrected map data by applying a spherical correction factor to the obtained map data, and rendering the corrected map data to display the map on a display of the wireless communications device. The spherical correction factor corrects for map distortions that occur at northerly (or southerly) latitudes. Since the spherical correction factor is a simple correction to a 3X3 transformation matrix, this spherical correction can be easily applied without taxing the CPU limitations of small handheld devices.
机译:在无线通信设备上显示地图的方法包括以下步骤:获得用于渲染要在无线通信设备上显示的地图的地图数据;通过将球面校正因子应用于所获得的地图数据来生成校正后的地图数据;以及渲染校正后的地图数据以在无线通信设备的显示器上显示地图。球面校正因子可校正在北(北)纬度处发生的地图变形。由于球面校正因子是对3X3变换矩阵的简单校正,因此可以轻松应用此球面校正,而不会增加小型手持设备的CPU限制。

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