Google 地图中的世界坐标是以墨卡托投影的原点（即地图西北角，经度为 180 度，纬度约 85 度）为起点测量的，在 x 轴上向东（右）递增，在 y 轴上向南（下）递增。由于基础的墨卡托 Google 地图图块为 256 x 256 像素，因此，可用的世界坐标空间为 {0-256}, {0-256}。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2024-09-11。"],[[["The Maps SDK for iOS utilizes four coordinate systems: latitude/longitude, world, pixel, and tile coordinates, to pinpoint locations on the map."],["World coordinates, derived from latitude/longitude using the Mercator projection, represent points on the map and are independent of zoom level."],["Pixel coordinates denote specific pixels on the map at a given zoom level and are calculated by multiplying world coordinates by 2 raised to the power of the zoom level."],["Tile coordinates are used to efficiently load map imagery by dividing the map into a grid of tiles, with each tile assigned a unique x,y coordinate based on its position."],["The API utilizes these coordinate systems to translate between real-world locations and their corresponding representations on the map, enabling accurate display and navigation."]]],["The Maps SDK for iOS utilizes latitude/longitude, world, pixel, and tile coordinate systems. World coordinates, based on the Mercator projection, convert latitude/longitude to map locations, independent of zoom. Pixel coordinates reference specific pixels at a zoom level, calculated by multiplying world coordinates by 2 to the power of the zoom level. Tile coordinates, derived from pixel coordinates, divide the map into tiles, enabling the API to retrieve and display only necessary imagery at various zoom levels. Each coordinate type is measured from the northwest corner.\n"]]
