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Use loop to produce CurveLocation getters, and add CurveLocation#curvature.

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This commit is contained in:
Jürg Lehni 2014-07-25 20:05:44 +02:00
parent d3d9e4bada
commit 652dbe1e86
1 changed files with 21 additions and 11 deletions
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32
src/path/CurveLocation.js
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@ -209,26 +209,26 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
/**
* The tangential vector to the {@link #curve} at the given location.
*
* @name Item#getTangent
* @type Point
* @bean
*/
getTangent: function() {
var parameter = this.getParameter(),
curve = this.getCurve();
return parameter != null && curve && curve.getTangentAt(parameter, true);
},
/**
* The normal vector to the {@link #curve} at the given location.
*
* @name Item#getNormal
* @type Point
* @bean
*/
getNormal: function() {
var parameter = this.getParameter(),
curve = this.getCurve();
return parameter != null && curve && curve.getNormalAt(parameter, true);
},
/**
* The curvature of the {@link #curve} at the given location.
*
* @name Item#getCurvature
* @type Number
* @bean
*/
/**
* The distance from the queried point to the returned location.
@ -288,4 +288,14 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
parts.push('distance: ' + f.number(this._distance));
return '{ ' + parts.join(', ') + ' }';
}
});
}, Base.each(['Tangent', 'Normal', 'Curvature'],
// Produce getters for #getTangent() / #getNormal() / #getCurvature()
function(name) {
var get = 'get' + name + 'At';
this['get' + name] = function() {
var parameter = this.getParameter(),
curve = this.getCurve();
return parameter != null && curve && curve[get](parameter, true);
};
}, {}
));