T-FLEX Parametric CAD. Fundamentals. 2D Design

Fundamentals. Two-Dimensional Design
Linking arc contour segment to helper node
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If the edited contour segment is an arc then the option for linking to a helper node becomes available in
the automenu. This node will be defining the choice of an arc constructed on top of the circle to be used for
the hatch contour. As the drawing gets modified, the hatch contour will pass by the arc nearest to the linking
node.
Let’s review an example where a construction line position is modified with respect to a reference line driven
by a variable “K”. Both circles here are linked to a node on the drawing in order to ensure correct position.
The left diagram shows the hatch contour in the original configuration (K=1). Let’s link the arc segment of
the hatch contour on top of the outer circle to the marked node. To do this, do the following steps once in
“EH: Edit Hatch” command:
- Call the hatch contour editing option ;
- Select the arc;
- Call the option ;
- Select the linking node.
The right diagram shows the modified drawing with the “К” key equal to (-1). The contour segment on
top of the upper circle was linked to the marked node and adjusted correctly. The contour segment on top of
the second circle was not linked to the node, which resulted in an incorrect configuration.
To clear or redefine the linking node, use the option .
Deleting a node on a contour
To delete a node on a contour, do the following steps:
- Call the command “EH: Edit Hatch”;
- Select a hatch for editing;
- Turn on the contour editing mode (the icon or key);
- Select the contour segment the node is snapped to (point at with the graphic cursor and click );
- Select the node (point at with the graphic cursor and click );