You can create closed or open reflect lines.
Reflect lines are the curves for which the
normal to the surface in each point present the same angle with a specified
direction.
Before you begin: Create a 3D shape containing curves.
From the Wireframe section of the
action bar, click Reflect Line.
Select the Type of reflect line to be created:
Cylindrical: corresponds to reflect lines with an infinite light
source.
Conical: corresponds to reflect lines with a finite point light source.
In the Support box, select the support surface.
Select an axis in the Direction box (for cylindrical type) or a point in the Origin box (for conical type).
In the Angle box, type the value or use the arrows to change the value.
For cylindrical lines, it represents the value between the
selected direction and the normal to the surface.
For conical lines, it represents the value between the normal to the
surface and the vector between the origin
and
the point on the surface where the normal has been computed.
Cylindrical reflect line Conical reflect line
You can also use the displayed handles to modify the angle value (green
handles), to reverse the support (red arrow) or to reverse the direction
(red arrow, only available for the cylindrical type).
Select the Angle Reference, that is whether the angle
should be computed.
Normal (by default) between the normal to the
support and the direction. It is set by default to 90deg.
Tangent to the plane tangent to the support and
the direction. It is set by default to 0deg.
Click OK to create the element.
The reflect line (identified as
ReflectLine.xxx) is added to the tree.
.
