9.5.2

554 • CHAPTER 10
STRUCTURE MENU • 555
Edge Position
After you’ve added a point to an edge, this parameter allows you to adjust the point’s position along
the edge.
Position World
Gives the position of the point in world coordinates while you are adding the point.
Adding points to splines
The Add Point tool also works with splines. Proceed as follows:
 Select Objects > Spline Object.
This creates an empty spline object with a preset Bezier interpolation. (For
information on the different types of interpolation and their characteristics,
look up ‘interpolation, spline’ in the index.)
 With point mode activated, hold down the Ctrl-click where the points of the
spline are to be set.
If you move the mouse while holding down the mouse button (and the Ctrl
key) then a soft interpolation tangent is created for the current point. The new
points are always created at the end of the spline.
 To create a point on an already existing curve, select the Add Points function
and click directly on the curve.
You can now keep the mouse button pressed to drag the point around, before letting it drop by
releasing the mouse button in its nal position. The shape of the curve does not change, since the
tangents are adapted automatically (although when using the Cubic, Akima and B-Spline types of
interpolation, by their very nature, the shape of the curve cannot be precisely maintained).
Bridge
Bridge enables you to create connections between unconnected surfaces.
The Bride tool works in all three modes (point, edge and polygon). A selection is required in polygon
mode.