T-FLEX Parametric CAD. Fundamentals. 2D Design
T-FLEX Parametric CAD. Fundamentals. 2D Design T-FLEX Parametric CAD. Fundamentals. 2D Design
With the option turned on, the points in the all hatch contours are enumerated based on their position in the contours and the contours direction. Points, belonging to the different contours, are enumerated independently. The point numbers are displayed next to the respective nodes. When several subsequent points of a contour coincide, their numbers are displayed next to each other, separated by commas. Editing a Particular Contour Hatches and Fills Note: only manually defined hatch contours can be edited. First, select the hatch that includes the desired contour. Then, turn on the contour editing option using the option: Contour edit mode Now, select the desired contour. The selected contour can be deleted or edited. To delete it, press the key. When picking a contour, the segment of the contour nearest to the cursor gets automatically selected. Now, the necessary modifications can be done with the help of the automenu. The following options become available upon selecting a contour segment: Switch to “Insert Point” mode Delete selected Contour Change Contour direction Move Contour starting point forward Move Contour starting point backward Select Node Select Line Select Circle Select Ellipse Select Spline (or other curve: 2D path, function) Change arc direction (available when editing an arc segment of a contour) Link Arc or Circle to Node (available when editing an arc segment of a contour) Break Link with Node (available when editing an arc segment of a contour) Cancel selection 305
Fundamentals. Two-Dimensional Design 306 Note: the options and only are available for editing the contours defined automatically with the option , constructed on top of 2D projections or as a copy of an existing hatch. When editing a contour, the following actions are supported: node deletion, node addition and redefinition of the type of lines connecting the nodes. Besides, one can change the contour direction, move the start point back and forth, link arc segments of a contour to nodes. Flipping contour direction to the opposite The contour direction is an important hatch property when creating 3D elements. This parameter is inherited by the 3D profiles created based on hatches. For example, the 3D operation “Loft” matches profiles by the start points of the respective contours and requires matching of contour directions as well. To change the direction of a 3D profile constructed based on a hatch, you need to change the hatch contour direction. The contour direction is shown by the arrow displayed upon selecting the contour. This arrow also indicates the start point of the contour. The following steps are to be done in order to change a hatch contour direction: - Call the command “EH: Edit Hatch”; - Select a hatch for editing; - Turn on the contour editing mode (the icon or key); - Select the contour (point the graphic cursor at and click ); - Flip the contour direction (the icon or key); - Confirm changes by the icon or key. Moving around contour start The contour start is the first node selected during the manual hatch contour input. If the contour is defined automatically or without node selection (as by a full circle), the start point is defined automatically. The start point placement and contour direction (see above) can only be changed for the contours defined manually. To move the contour start point, 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 (point at it with the graphic cursor and click ); - Move the start point forward (the icon or key) or backward (the icon or key); - Confirm changes by the icon or the key.
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With the option turned on, the points in the all hatch contours are enumerated based on<br />
their position in the contours and the contours direction. Points, belonging to the<br />
different contours, are enumerated independently. The point numbers are displayed next<br />
to the respective nodes. When several subsequent points of a contour coincide, their<br />
numbers are displayed next to each other, separated by commas.<br />
Editing a Particular Contour<br />
Hatches and Fills<br />
Note: only manually defined hatch contours can be edited.<br />
First, select the hatch that includes the desired contour. Then, turn on the contour editing option using the<br />
option:<br />
Contour edit mode<br />
Now, select the desired contour. The selected contour can be deleted or edited. To delete it, press the <br />
key. When picking a contour, the segment of the contour nearest to the cursor gets automatically selected.<br />
Now, the necessary modifications can be done with the help of the automenu.<br />
The following options become available upon selecting a contour segment:<br />
Switch to “Insert Point” mode<br />
Delete selected Contour<br />
Change Contour direction<br />
Move Contour starting point forward<br />
Move Contour starting point backward<br />
Select Node<br />
Select Line<br />
Select Circle<br />
Select Ellipse<br />
Select Spline (or other curve: <strong>2D</strong> path, function)<br />
<br />
<br />
<br />
Change arc direction (available when editing an arc<br />
segment of a contour)<br />
Link Arc or Circle to Node (available when editing<br />
an arc segment of a contour)<br />
Break Link with Node (available when editing an arc<br />
segment of a contour)<br />
Cancel selection<br />
305