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- /**
- * The maximum latitude, in radians, both North and South, supported by a Web Mercator
- * (EPSG:3857) projection. Technically, the Mercator projection is defined
- * for any latitude up to (but not including) 90 degrees, but it makes sense
- * to cut it off sooner because it grows exponentially with increasing latitude.
- * The logic behind this particular cutoff value, which is the one used by
- * Google Maps, Bing Maps, and Esri, is that it makes the projection
- * square. That is, the rectangle is equal in the X and Y directions.
- *
- * The constant value is computed as follows:
- * czm_pi * 0.5 - (2.0 * atan(exp(-czm_pi)))
- *
- * @name czm_webMercatorMaxLatitude
- * @glslConstant
- */
- const float czm_webMercatorMaxLatitude = 1.4844222297453324;
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