T-FLEX Parametric CAD. Fundamentals. 2D Design

Fundamentals. Two-Dimensional Design
Constructing Splines
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When creating spline, one can either use the existing nodes or automatically create new ones (free nodes or
at construction line intersections).
Call the command “SP: Construct Spline”:
Keyboard Textual Menu Icon
“Construct|Spline”
The following options become available to the user:
, Free mode on/off toggle
Select Node (for spline construction).
Set Spline parameters.
Click to select tangent Node.
Create Spline in Polar Coordinate System
Select symmetry axis (Line)
Select Graphic line
Execute Edit Construction command
Exit command
Upon entering spline creation command, the user can use or in
order to set the defining nodes of the spline. The curve being created will
be rubberbanding on the screen. In the case of control polygon type
splines, the polyline will be displayed along with the spline curve.
Now, the option for finishing the spline input becomes available in the
automenu that can be used for completing spline creation.
Finish Spline input
When creating a control polygon type spline, the weights of each particular point can be defined with the
help of option.
To define a spline with end-point tangency conditions, follow these steps:
N