## Segment2 Segment2 is represented by a 4 coordinates array [x1:Number, y1:Number, x2:Number, y2:Number] normalized so x1 < x2 * **create** (*x1*: Number, *y1*: Number, *x2*: Number, *y2*: Number): Segment2 * **normalize** (*out*: Segment2, *seg2*: Segment2): Segment2 * **clone** (*seg2*: Segment2): Segment2 * **copy** (*out*: Segment2, *seg2*: Segment2): Segment2 * **translate** (*out*: Segment2, *seg2*: Segment2, *vec2*: Vec2): Segment2 * **length** (*seg2*: Segment2): Number * **sqrLength** (*seg2*: Segment2): Number * **midPoint** (*out_vec2*: Vec2, *seg2*: Segment2): Vec2 * **slope** (*seg2*: Segment2): Number * **angle** (*seg2*: Segment2): Number * **cross** (*seg2*: Segment2, *vec2*: Vec2): Number * **isCollinear** (*seg2*: Segment2, *vec2*: Vec2): Boolean * **isParallel** (*seg2*: Segment2, *seg2_2*: Segment2): Boolean *todo*: do it! * **isVec2Inside** (*seg2*: Segment2, *vec2*: Vec2): Boolean * **isAbove** (*seg2*: Segment2, *vec2*: Vec2, *cached_seg2_min_angle*: Number): Boolean * **leftNormal** (*out_vec2*: Vec2, *seg2*: Segment2): Vec2 * **rightNormal** (*out_vec2*: Vec2, *seg2*: Segment2): Vec2 * **closestPoint** (*out_vec2*: Vec2, *seg2*: Segment2, *vec2*: Vec2): Vec2 * **$closestPoint** (*out_vec2*: Vec2, *x1*: Number, *y1*: Number, *x2*: Number, *y2*: Number, *x3*: Number, *y3*: Number): Vec2 *todo*: optimize, "inline the if/else" * **$collinear** (*x1*: Number, *y1*: Number, *x2*: Number, *y2*: Number, *x3*: Number, *y3*: Number): Boolean * **$inside** (*x1*: Number, *x2*: Number, *y1*: Number, *y2*: Number, *x3*: Number, *y3*: Number): Boolean * **lengthSq** (*seg2*: Segment2) **see**: [sqrLength](#Segment2-sqrLength) * **contains** (*seg2*: Segment2, *vec2*: Vec2) **see**: [isVec2Inside](#Segment2-isVec2Inside)