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document the circle percentage radius algorithm

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Horcrux
2016-04-25 23:46:04 +08:00
parent 1304e3fc49
commit 76856ce457
2 changed files with 6 additions and 0 deletions
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elements/Shape.js
+3
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@@ -13,7 +13,10 @@ import createReactNativeComponentClass from 'react-native/Libraries/ReactNative/
const CIRCLE = 0;
/**
* coord props
*
* algorithm for radius in percentage
* radius = Math.sqrt(Math.pow((width*percent), 2) + Math.pow((height*percent), 2)) / Math.sqrt(2);
*/
const CIRCLE_COORDS = ['cx', 'cy', 'r'];