Click Fill
in the Surfaces toolbar.
The Fill Surface Definition dialog box appears.
![](../GsdImages/dbfilldefNLS.png)
In the Outer Boundaries tab, select curves or surface edges to form the outer closed boundary.
A diagnosis is displayed in the 3D area and the fill surface is previewed within the boundary.
![](../GsdImages/fillsur12NLS.gif)
Optional: In the Inner Boundaries tab, select inner curves or surface edges to form the inner closed boundary.
![](../GsdImages/dbfilldef02NLS.gif)
Note:
Only curves corresponding to a single inner boundary are displayed in the list.
A diagnosis is displayed in the 3D area and the fill surface is displayed within the boundary.
![](../GsdImages/fillsur11NLS.gif)
The resulting surface will be a fill surface between the outer and inner closed boundaries.
Optional: Click Add New Boundary to add a new boundaries or Remove Current Boundary to remove the selected boundary.
Optional: Click Previous or Next buttons to navigate between all inner curves and their supports defining a closed contour.
When the current boundary is the last one, the Next button is unavailable. Similarly, when it is the first one, the Previous button is unavailable. You can use the spinners to move from one set of curves to another or directly click a number in the box.
Optional: For both tabs, you can select a support surface for each curve or edge. In this
case, the continuity will be assured between the fill surface and selected
support surfaces.
Note:
You can define a support just after the selection of the curve or by clicking the curve in the list and selecting a support. To be able to select a support, the boundary must fully lie on the support.
Optional: For both tabs, you can select a continuity type for each support surface. You can modify the continuity type either from:
- the dialog box: select the
input in the list and modify the type from the
Continuity
combo box, or
- the 3D area: click the widget to switch from one type to another or right-click it and select the type from the contextual menu. Widgets are useful to visualize whether and which continuity is set on a boundary.
![](../GsdImages/dbfilldef03NLS.gif)
Optional: Use the combo to specify the desired continuity type
between any selected support surfaces and the fill surface:
-
Point
-
Tangent, or
-
Curvature
Note:
You can edit outer and inner boundaries by first selecting an element
in the dialog box list then clicking a button to either:
-
Add a new
element after or before the selected one
-
Remove the
selected element
-
Replace the
selected element by another curve
-
Replace the
selected support element by another support surface
-
Remove the
selected support element.
Optional: In the Passing elements box, select
one or more points and curves.
This element can either be a point or a curve through which the filling surface must
pass, thus adding a constraint to its creation. However, you may need
to alleviate the number of constraints by removing the supports.
Optional: You can select the Planar
Boundary Only check box to fill only planar boundaries, when the boundary is
defined by one curve on one surface.
Optional: You can select the Deviation check box and enter a value to fill the existing gaps.
Click OK to create the fill surface.
The surface (identified as Fill.xxx) is added to the
specification tree.
![](../GsdImages/fillsur13.gif)
Here are complementary examples of filled surfaces:
Filling surface without specified supports
![](../GsdImages/fillsur02.gif)
Filling surface with a passing point and no specified supports
![](../GsdImages/fillsur03.gif)
Filling surface with specified
supports (blue and yellow surfaces) and a tangency continuity
![](../GsdImages/fillsur04.gif)
Filling surface with a passing point, specified supports
(blue and yellow surfaces) and a tangency continuity
![](../GsdImages/fillsur05.gif)