Creates an AlignmentArc entity defined by a previous entity and a pass-through point.

Creates an AlignmentArc entity defined by an initial pass-through point, a second pass-through point, and a direction at the second pass-through point.

Creates an AlignmentArc entity defined by a center point, a pass-through point, and a boolean value that specifies whether the direction is clockwise at the pass-through point.

Creates an AlignmentArc entity defined by an initial pass-through point, a direction at the initial pass-through point, and a second pass-through point.

Creates an AlignmentArc entity defined by a center point, radius, and boolean value that specifies whether the direction is clockwise.

Creates an AlignmentArc entity defined by an initial pass-through point, a second pass-through point, the radius, and a boolean specifying whether the curve direction is clockwise.

Creates an AlignmentArc entity defined by an initial pass-through point, a direction at the second pass-through point, the radius, and a boolean indicating whether the curve direction is clockwise.

Creates an AlignmentArc entity defined by a start point, middle point, and end point.

Creates an AlignmentArc entity defined by an initial pass-through point, a second pass-through point, the radius, a boolean specifying whether the curve direction is clockwise and a boolean specifying whether the AlignmentArc entity is greater than 180 degrees.

Creates an AlignmentLine entity defined by a start point and an end point.

Creates an AlignmentLine entity defined by a previous entity ID and a distance value for the new line.

Creates an AlignmentLine entity defined by a start point and an end point.

Creates an AlignmentSpiral entity defined by a previous entity, a start point, a point of intersection, an end point and a spiral curvature type.

Creates an AlignmentSpiral entity defined by a previous entity, a start point, a point of intersection, a radius, a length, a spiral curvature type and a clockwise indicator.

Creates an AlignmentSpiral entity defined by a previous entity, a start point, a point of intersection, a start radius, an end radius, a length, a spiral definition, and a clockwise indicator.

Creates an AlignmentSpiral entity defined by a previous entity, a start point, a point of intersection, a radius, a length, a spiral curvature type and a clockwise indicator.

Creates a spiral entity defined by a previous entity, a start point, a point of intersection, a start radius, an end radius, a length, a spiral definition, and a clockwise indicator.

Adds an AlignmentSCS (SC or CS, Float Arc with Spiral) constrained by a spiral parameter, the radius for the circular arc, and a pass-through point for the circular arc.

Add an AlignmentSCS (SC or CS, Float Arc with Spiral) constrained by spiral parameter, the radius for the circular arc, and length of the circular arc.

Adds an AlignmentSSCSS (Spiral-Spiral-Curve-Spiral-Spiral group) entity constrained by a next entity, spiral3 and spiral4 parameters, two pass through points of the circular arc, and a spiral definition type.

Adds an AlignmentSSCSS (Spiral-Spiral-Curve-Spiral-Spiral group) entity constrained by a next entity, spiral3 and spiral4 parameters, radius for circular arc, pass through point of the circular arc, and a spiral definition type.

Creates an AlignmentArc entity defined by a next entity, and a pass-through point.

Creates an AlignmentArc entity defined by a previous entity, and a pass-through point.

Creates an AlignmentArc entity defined by a next entity, a pass-through point, and the direction at the pass-through point.

Creates an AlignmentArc entity defined by a previous entity, a pass-through point, and the direction at the pass-through point.

Creates an AlignmentArc entity defined by a next entity, a pass-through point, a radius, a boolean value indicating whether or not the curve encompasses more than 180 degrees of a circle, and the curve type.

Creates an AlignmentArc entity defined by a previous entity, a pass-through point, a radius, a boolean value indicating whether or not the curve encompasses more than 180 degrees of a circle, and the curve type.

Creates an AlignmentArc entity defined by a previous entity, radius, a constraint type and value.

Creates an AlignmentArc entity defined by a next entity, radius, a constraint type and value.

Creates an AlignmentLine entity defined by a next entity and a pass-through point.

Creates an AlignmentLine entity defined by a previous entity and a pass-through point.

Creates an AlignmentLine entity defined by a previous entity (to which it is tangent) and a length.

Creates an AlignmentLine entity defined by a next entity (to which it is tangent) and a length.

Adds an AlignmentSTS (ST or TS, Float Line with Spiral) entity constrained by a spiral parameter and pass-through point for the line.

Adds an AlignmentSTS (ST or TS, Float Line with Spiral) entity constrained by a spiral parameter and line length.

Adds an AlignmentSSCSS (Spiral-Spiral-Curve-Spiral-Spiral group) entity constrained by a previous entity, spiral1 and spiral2 parameters, two pass through points of the circular arc, and a spiral definition type.

Adds an AlignmentSSCSS (Spiral-Spiral-Curve-Spiral-Spiral group) entity constrained by a previous entity, spiral1 and spiral2 parameters, radius for circular arc, pass through point of the circular arc, and a spiral definition type.

Creates an AlignmentSpiral entity defined by a previous entity, a radius, a length, a clockwise indicator and a spiral definition.

Creates an AlignmentSpiral entity defined by a radius, a length, a next entity, a clockwise indicator and a spiral definition.

Creates a free (dependent on two other subentities) AlignmentArc entity defined by a previous entity, a next entity, and a pass-through point.

Creates a free (dependent on two other subentities) arc AlignmentArc defined by a previous entity, a next entity, a constraint type and value, a boolean value specifying whether the curve encompasses more than 180 degrees, and the curve type.

Creates an AlignmentLine entity defined by two successive elements identified by ID.

Creates a AlignmentSCS (Spiral-Curve-Spiral group) entity defined by a previous entity, a next entity, the 'A' values of two spirals, and the arc radius.

Creates an AlignmentSCSCS (Spiral-Curve-Spiral-Curve-Spiral group) subentity defined by a previous element, a next element, an AeccGeSCSCSConstraints and a spiral definition type .

Creates an AlignmentSCSS (Spiral-Curve-Spiral-ReverseSpiral group) subentity defined by a previous element, a next element, an AeccGeSCSCSConstraints and a spiral definition type .

Creates an AlignmentSCSSCS (Spiral-Curve-Spiral-Spiral-Curve-Spiral group) subentity defined by a previous element, a next element, an AeccGeSCSCSConstraints and a spiral definition type.

Creates a AlignmentSCS (Spiral-Curve-Spiral group with a curve and a spiral length is 0) entity defined by a previous entity, a next entity, the lengths or A-Value of spiral, and the spiral type and the definition type.

Adds an AlignmentSTS (Spiral-Line-Spiral group with the line length is 0) entity constrained by the two spiral parameters.

Creates a AlignmentSCS (Spiral-Curve-Spiral groupwith the curve length is 0) entity defined by a previous entity, a next entity, the 'A' value or Length of two spirals.

Creates an AlignmentSSCS (ReverseSpiral-Spiral-Curve-Spiral group) subentity defined by a previous element, a next element, an AeccGeSCSCSConstraints and a spiral definition type .

Creates an AlignmentSSCSS (ReverseSpiral-Spiral-Curve-Spiral-ReverseSpiral group) subentity defined by a previous element, a next element, an AeccGeSCSCSConstraints and a spiral definition type .

Adds an AlignmentSTS (Spiral-Line-Spiral) entity constrained by the line length.

Adds an AlignmentSTS (Spiral-Line-Spiral group) entity constrained by the two spiral parameters.

Removes all alignment entities from the collection.

Returns the AlignmentEntity specified by ID.

Gets the AlignmentEntity at a specified Station in the Alignment.

Gets an AlignmentEntity at a specified order index along the alignment path. This function behaves like the GUI in that disconnected alignment entities are not considered.

Implements the method declared in the IEnumerable<T> interface. This method returns an enumerator for this collection.

Implements the method declared in the IEnumerable interface. This method returns an enumerator for this collection.

Removes alignment entity from the collection by the specified entity object.

Removes alignment entity from the collection by the specified index.

Gets the number of AlignmentEntity objects in the collection.

Gets the ID of the first AlignmentEntity in the collection.

Gets the ID of the last AlignmentEntity in the collection.