function (point) {
        var coord = this.pointToCoord(point);
        return this._radiusAxis.contain(coord[0])
            && this._angleAxis.contain(coord[1]);
    }
function (point) {
        var coord = this.pointToCoord(point);
        return this._radiusAxis.contain(coord[0])
            && this._angleAxis.contain(coord[1]);
    }
function ( point ) { var coord = this . pointToCoord ( point ) ; return this . _radiusAxis . contain ( coord [ 0 ] ) && this . _angleAxis . contain ( coord [ 1 ] ) ; }
If contain coord
@param {Array.<number>} point
@return {boolean}
If contain coord
Returns true if the given point is on the region of the region