T-FLEX Parametric CAD. Fundamentals. 2D Design

Sketch. Creating a Non-parametric Drawing. Automatic parameterization mode
To divide an entity into an arbitrary number of equal parts, use the automenu option:
Divide Graphic Line into “n” parts
Upon calling the option, specify an entity to divide. If a closed entity was selected (a circle, ellipse or a
closed spline), additionally specify the start point of division. As a result, the selected entity will be divided
into the specified number of equal parts. The nodes will be created at the division
points.
The number of division parts of the entity is specified in the property window.
Modifying splines
Spline modifications are done somewhat different then other sketch entities. Let's review an example of
trimming spline using the option . Upon calling the option, pick on the spline near one of its ends
hanging off the intersection with another graphic entity - a line segment. As a result, the spline will be
trimmed up to the intersection point. However, the geometrical characteristics of the spline are not modified
by the section. The spline keeps the same set of defining nodes, it is only the visible image that has been
trimmed. Instead of a node (that would disturb the spline geometry), a special section point is created at the
intersection, called a “graphic line intersection”. This point becomes visible only when the spline is selected.
Shortening a spline (the option ) is done in the same way as the trimming – the spline geometry is not
modified, however, an intersection point is created in the specified position, limiting the spline visible image.
When dividing spline into parts (the options and ), the new geometrically coinciding splines are
created, based on the same nodes as the original spline. The number of created splines will correspond to the
number of divisions. The visible image of each spline will be limited by the trimming points according to the
bounds of the respective parts of the original spline. In this case, the spline may have two trimming points
limiting its image.
The position or the trimming point of a spline can be modified when editing the spline (see the section
“Editing sketch”).
Graphic Line Parameters
Parameters of a graphic entity can be defined or modified at any moment of sketch creation or editing. The
dialog box defining the parameters is called by the option:
Set Graphic Line Parameters
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