You can create circular patterns using single surfacic or volumic
elements, i.e. duplicate an original wireframe or surface-type element at the location of
your choice according to a circular arrangement.
click Circular Pattern .
Select the element you want to replicate as a pattern in the work area.
Click the Reference element box to select a line, a planar face or surface edge to specify the first direction.
Optional: Click the Reverse Direction to reverse the direction.
In the Parameters list, select the type of parameters to replicate.
Option
Description
Instance(s) & total angle
The number of patterns as specified in the instances box is created, in the
specified direction, and evenly spread out over the total angle.
Instance(s) & angular spacing
The number of patterns as specified in the instances box are created in the
specified direction, each separated from the previous/next one of the angular angle
value.
Angular spacing & total angle
As many patterns as possible are created over the total angle, each separated
from the previous/next one of the angular angle value.
Complete crown
The number of patterns as specified in the instances box is created over the
complete circle (360 degree).
Instance(s) & unequal angular spacing
The number of patterns as specified in the instances box is created using a
specific angular spacing between each instance.
Angular spacing values are displayed
between each instance.
To edit the values between each instance, you need to
edit them individually. Select the angular spacing of interest, then choose one of
the methods described hereafter: For instance, if you appears to change 72 degree
for 100 degree for the angular spacing selected as shown in our picture, you can:
Double-click the angle value in the 3D geometry. This displays the
Parameter Definition dialog box in which you can enter
the new value.
Directly enter the new value in the Angular spacing box of the
Circular Pattern Definition dialog box.
Important:
If you set Instance(s) & total angle or Angular spacing & total angle parameters, note that you cannot define the angle by using formulas.
Select the Crown Definitiontab, and select
the parameters to define the crown.
Option
Description
Circle(s) & crown thickness
Define the number of circles and they are spaced out evenly over the specified
crown thickness.
Circle(s) & circle spacing
Define the number of circles and the distance between each circle, the crown
thickness being computed automatically.
Circle(s) spacing & crown thickness
Define the distance between each circle and the crown thickness, and the number
of circles is automatically computed.
This figure may help you define these parameters:
For instance, using the values described above for the Angular spacing & total angle option, you could define the crown as:
Note:
Patterns can also be created outside the support surface boundaries.
Tip:
In the pattern preview, click the point materializing an instance to delete it. Click again to add it.
Position the instances in relation to the first selected element.
Set the Rotation angle parameter to 30deg.
If enabled, click Radial alignment to clear the option.
The initially selected element has moved 30deg from its initial location, based on the rotation direction, and all instances are normal to the lines tangent to the circle.
Optional: If more than 15 instances are generated, click Simplified representation in the Layout options area to lighten the pattern geometry and click Preview.
Not simplified geometry Simplified geometry
You can also specify the instances you do not want to see by double-clicking them. These instances are then represented in dashed lines during the pattern definition and then are no longer visible after validating the pattern creation. The specifications remain unchanged, whatever the number of instances you view. This option is particularly useful for patterns including a large number of instances. When selecting Radial alignment, all instances have the same orientation as the original feature. When cleared, all instances are normal to the lines tangent to the circle.
Click OK to create the pattern.
Important:
Patterning User Features (UDFs) is not allowed.
You cannot cut nor copy circular patterns, except if they belong
to the same body.
.
to reverse the direction.
Note: Patterns can also be created outside the support surface boundaries.
to clear the option.
in the Layout options area to lighten the pattern geometry and click Preview.
