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Tom Payne
2013-03-09 02:19:35 +01:00
parent 9d950525bb
commit 194edc7f26
1 changed files with 37 additions and 37 deletions
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74
src/ol/easing.js
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@@ -3,6 +3,33 @@ goog.provide('ol.easing');
goog.require('goog.fx.easing'); goog.require('goog.fx.easing');
/**
* from https://raw.github.com/DmitryBaranovskiy/raphael/master/raphael.js
* @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1.
*/
ol.easing.bounce = function(t) {
var s = 7.5625, p = 2.75, l;
if (t < (1 / p)) {
l = s * t * t;
} else {
if (t < (2 / p)) {
t -= (1.5 / p);
l = s * t * t + 0.75;
} else {
if (t < (2.5 / p)) {
t -= (2.25 / p);
l = s * t * t + 0.9375;
} else {
t -= (2.625 / p);
l = s * t * t + 0.984375;
}
}
}
return l;
};
/** /**
* @param {number} t Input between 0 and 1. * @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1. * @return {number} Output between 0 and 1.
@@ -17,6 +44,16 @@ ol.easing.easeIn = goog.fx.easing.easeIn;
ol.easing.easeOut = goog.fx.easing.easeOut; ol.easing.easeOut = goog.fx.easing.easeOut;
/**
* from https://raw.github.com/DmitryBaranovskiy/raphael/master/raphael.js
* @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1.
*/
ol.easing.elastic = function(t) {
return Math.pow(2, -10 * t) * Math.sin((t - 0.075) * (2 * Math.PI) / 0.3) + 1;
};
/** /**
* @param {number} t Input between 0 and 1. * @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1. * @return {number} Output between 0 and 1.
@@ -44,40 +81,3 @@ ol.easing.upAndDown = function(t) {
return 1 - ol.easing.inAndOut(2 * (t - 0.5)); return 1 - ol.easing.inAndOut(2 * (t - 0.5));
} }
}; };
/**
* from https://raw.github.com/DmitryBaranovskiy/raphael/master/raphael.js
* @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1.
*/
ol.easing.elastic = function(t) {
return Math.pow(2, -10 * t) * Math.sin((t - 0.075) * (2 * Math.PI) / 0.3) + 1;
};
/**
* from https://raw.github.com/DmitryBaranovskiy/raphael/master/raphael.js
* @param {number} t Input between 0 and 1.
* @return {number} Output between 0 and 1.
*/
ol.easing.bounce = function(t) {
var s = 7.5625, p = 2.75, l;
if (t < (1 / p)) {
l = s * t * t;
} else {
if (t < (2 / p)) {
t -= (1.5 / p);
l = s * t * t + 0.75;
} else {
if (t < (2.5 / p)) {
t -= (2.25 / p);
l = s * t * t + 0.9375;
} else {
t -= (2.625 / p);
l = s * t * t + 0.984375;
}
}
}
return l;
};