scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
61 lines (60 loc) • 2.99 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.NumberRangeAnimator = void 0;
var Guard_1 = require("../Guard");
var NumberRange_1 = require("../NumberRange");
var EasingFunctions_1 = require("./EasingFunctions");
var GenericAnimation_1 = require("./GenericAnimation");
/**
* A class for animating a value of type {@link NumberRange}. Used throughout SciChart to animate
* {@link AxisCore.visibleRange} when zooming or panning.
*/
var NumberRangeAnimator = /** @class */ (function () {
function NumberRangeAnimator() {
}
/**
* Animates a {@link NumberRange} with a start, to value over a specified duration and with an optional completed and easing function
* @param from The start value to animate
* @param to The end value to animate
* @param durationMs The duration of the animation in milliseconds
* @param onAnimate A callback function which is called with intermediate values
* @param onCompleted A callback function which is called when the animation completes
* @param easingFunction An optional easing function. See {@link IEasingMap} for a list of values
*/
NumberRangeAnimator.animate = function (from, to, durationMs, onAnimate, onCompleted, easingFunction, isLog) {
if (easingFunction === void 0) { easingFunction = EasingFunctions_1.easing.outExpo; }
if (isLog === void 0) { isLog = false; }
var animation = new GenericAnimation_1.GenericAnimation({
from: from,
to: to,
duration: durationMs,
onAnimate: function (start, end, progress) {
var interpolate = isLog ? NumberRangeAnimator.interpolateLog : NumberRangeAnimator.interpolate;
var intermediate = interpolate(start, end, progress);
onAnimate(intermediate);
},
delay: 0,
ease: easingFunction,
onCompleted: onCompleted
});
return animation;
};
NumberRangeAnimator.interpolate = function (from, to, interpolationFactor) {
Guard_1.Guard.notNull(from, "from");
Guard_1.Guard.notNull(to, "to");
var newMin = (to.min - from.min) * interpolationFactor + from.min;
var newMax = (to.max - from.max) * interpolationFactor + from.max;
var result = new NumberRange_1.NumberRange(newMin, newMax);
return result;
};
NumberRangeAnimator.interpolateLog = function (from, to, interpolationFactor) {
Guard_1.Guard.notNull(from, "from");
Guard_1.Guard.notNull(to, "to");
var newMin = Math.pow(to.min / from.min, interpolationFactor) * from.min;
var newMax = Math.pow(to.max / from.max, interpolationFactor) * from.max;
var result = new NumberRange_1.NumberRange(newMin, newMax);
return result;
};
return NumberRangeAnimator;
}());
exports.NumberRangeAnimator = NumberRangeAnimator;