Stripes
The grid determines the size and distribution of the elements over the support.
Description
Style curves define the stripes on the optical part design feature.
The shape of the stripes, their number and repartition over the support depend on the style curves selected for definition.
_opd_optical_surface_grid_stripes_01.png) |
_opd_optical_surface_grid_stripes_02.png) |
| Support and Style Curves viewed from the plane normal to Projection Direction. | Result of the feature when stripes are generated on the support according to style curves definition. |
Axis System
The grid axis system is used to define the way that the style curves are projected onto the support.
The axis system origin is optional. It is, by default, inherited from the source.
Note: If you define manually one axis only, the other axis is automatically (and randomly) calculated by Speos in the 3D view. However, the other axis in the Definition panel may not correspond to the axis in the 3D view. Please refer to the axis in the 3D view.-
This axis system has an impact on some parameters of the flutes beams (Elements definition):
- Start angle / End angle
- Flutes' orientation: Convex / Concave
- To ensure a correct construction when using a curved support, make sure the support does not
close in on itself (see figure below). Otherwise, the stripes will not be projected
correctly.
_opd_optical_surface_grid_stripes_03.png)
Curve Selection
Styles curves are selected to demarcate the stripes.
These curves can be lines, splines or sketches. The stripes are oriented along X Grid, which is given by the tangent to the set of curves.
One incomplete style curve is enough to provoke a null result for the whole feature. To avoid construction issues, always use support surfaces larger than style curves.