ios-v5.9.0-alpha.1

Changes since Mapbox Maps SDK for iOS v5.8.0:

Styles and rendering

• Added the distance expression function for calculating the shortest distance between the evaluated feature and a GeoJSON Point, MultiPoint, LineString, or MultiLineString geometry that you specify. Use this function in expressions in style JSON or with the MGL_FUNCTION() syntax in an NSExpression format string. (mapbox/mapbox-gl-native#16397)
• Added the MGLCircleStyleLayer.circleSortKey property. (mapbox/mapbox-gl-native#15875)
• Chinese, Japanese, and Korean characters are now set in the font specified in style JSON or by the MGLSymbolLayer.textFontNames property. If the named font is not installed on the device or bundled with the application, the characters are set in a fallback font listed in the MGLIdeographicFontFamilyName key in the Info.plist file. (#189)
• The MGLIdeographicFontFamilyName key in the Info.plist file can now specify the fallback fonts for CJK characters by their PostScript names or display names in addition to font family names. For example, you can specify NotoSansCJKjp-Bold or Noto Sans CJK JP Bold, which ensures that the characters are set in bold. You can alternatively specify these font names in the MGLIdeographicFontFamilyName key of NSUserDefaults.standardUserDefaults. (#189)
• CJK characters are now laid out according to the font, so fonts with nonsquare glyphs have the correct kerning. (#189)
• Fixed an issue where the baseline for CJK characters was too low compared to non-CJK characters. (#189)
• Fixed a crash when calling the -[MGLStyle removeImageForName:] method with the name of a nonexistent image. (mapbox/mapbox-gl-native#16391)
• Fixed an issue where properties such as MGLFillStyleLayer.fillColor and MGLLineStyleLayer.lineColor misinterpreted non-opaque UIColors. (#266)

Other changes

• Fixed a crash when encountering an invalid polyline. (mapbox/mapbox-gl-native#16409)
• Fixed an issue where an MGLMapSnapshotOptions with an invalid MGLMapCamera.centerCoordinate, negative MGLMapCamera.heading, negative MGLMapCamera.pitch, and negative MGLMapSnapshotOptions.zoomLevel resulted in a snapshot centered on Null Island at zoom level 0 even if the style specified a different initial center coordinate or zoom level. (#280)
• Fixed an error that occurred if your implementation of the -[MGLOfflineStorageDelegate offlineStorage:URLForResourceOfKind:] method returned a local file URL. (mapbox/mapbox-gl-native#16428)
• Certain logging statements no longer run on the main thread. (mapbox/mapbox-gl-native#16325)

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Documentation is available online or as part of the download.