@cesium/engine
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CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.
19 lines (18 loc) • 890 B
JavaScript
//This file is automatically rebuilt by the Cesium build process.
export default "/**\n\
* The maximum latitude, in radians, both North and South, supported by a Web Mercator\n\
* (EPSG:3857) projection. Technically, the Mercator projection is defined\n\
* for any latitude up to (but not including) 90 degrees, but it makes sense\n\
* to cut it off sooner because it grows exponentially with increasing latitude.\n\
* The logic behind this particular cutoff value, which is the one used by\n\
* Google Maps, Bing Maps, and Esri, is that it makes the projection\n\
* square. That is, the rectangle is equal in the X and Y directions.\n\
*\n\
* The constant value is computed as follows:\n\
* czm_pi * 0.5 - (2.0 * atan(exp(-czm_pi)))\n\
*\n\
* @name czm_webMercatorMaxLatitude\n\
* @glslConstant\n\
*/\n\
const float czm_webMercatorMaxLatitude = 1.4844222297453324;\n\
";