T-FLEX Parametric CAD. Fundamentals. 2D Design

T-FLEX Parametric CAD. Fundamentals. 2D Design T-FLEX Parametric CAD. Fundamentals. 2D Design

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option will be used in all newly opened documents until the end of the application session. To change the setting, close and reopen the application. Paths If the dialog box does not pop up upon while in the command being described, and some action is performed instead, then a default action was already assigned earlier in the session within this command or in “H: Create Hatch”. 2D Path Parameters 2D path parameters can be defined either at the path creation or during its editing. The 2D path parameters dialog box is called by the option Set path parameters Number of Point for Circle Approximation. This parameter defines the accuracy of drawings of circles and circular arcs that are components of 2D paths. Level. Places the path being created on a certain visibility level used for hiding some elements from display as necessary. Layer. This parameter assigns the path being created to a certain layer. Color. This parameter defines the color used for the path display. Set as default. Turning on this flag means the current dialog parameter settings will be used in future for constructing new construction lines. Editing 2D Paths By editing a path, one can add or delete nodes, select a different construction line to connect the end nodes of a particular path segment, as well as define new parameters. Editing is done in the command “EC: Edit Construction”. Keyboard Textual Menu Icon “Edit|Construction|Path” A path can be selected by pointing the cursor and clicking , or by the option: Select Spline As a result, the selected path gets highlighted, and its nodes marked. Editing the Type of a Particular Path Segment To modify the type of a particular path segment, do the following steps: • Select a path; • Using the mouse, select the path segment whose type needs to be modified; • Select a construction entity defining the new type of the path segment: line, circle, ellipse and spline (including other 2D paths). Selection of a construction entity is done using the appropriate option. The end nodes of the path segment being edited must belong to the selected construction entities; 251

Fundamentals. Two-Dimensional Design 252 • Exit the particular path segment editing mode by right-clicking or pressing on the keyboard. • Confirm changes by the option: Finish input Let’s review an example explaining the process of editing a particular segment of a path contour. The diagram shows the original path. The wave segment is to be replaced by a straight line. Call the command “EC: Edit Construction” and select the path. The next diagram shows the situation after selecting the path. The contour is highlighted, and the end nodes are marked by small boxes. Move the cursor over the contour segment to be edited (the wave line in this case) and click . The selected contour segment will be highlighted and its nodes marked with larger boxes. This state is shown on the next diagram. Select the straight line passing through the edited contour nodes by moving the cursor over and typing key. The edited path segment now assumes the desired shape. The system still remains in the selected path segment editing mode. If transforming this segment is over, quit the current segment editing mode by right clicking or pressing on the keyboard. The icon becomes then accessible in the automenu. If there are no more modifications to the path, push or key. What is left is just changing the graphic line type, if necessary. Similarly, one can replace a path segment with a circular or elliptic arc, or a spline segment, or a part of another path, if the circle, ellipse, spline or path is constructed based on the marked nodes. Simply use the appropriate option among , and . If the new path segment was not created based on the marked nodes yet passes through them, then editing such path segment can be done using the option “Switch to ‘Insert Point’ mode” (the icon or the key). This option will be fully described below. The selected segment of the path between two nodes can be replaced as many times as necessary. The path segment will stay selected until the user quits by right clicking or pressing . If a contour segment was modified using the option “Switch to ‘Insert Point’ mode” (the icon or key), then the selected contour segment gets unselected after the change (no need to press ). Meanwhile, the system will remain in the path contour editing mode until the confirmation by or key. L

option will be used in all newly opened documents until the end of the application session. To<br />

change the setting, close and reopen the application.<br />

Paths<br />

If the dialog box does not pop up upon while in the command being described, and some action is<br />

performed instead, then a default action was already assigned earlier in the session within this command<br />

or in “H: Create Hatch”.<br />

<strong>2D</strong> Path Parameters<br />

<strong>2D</strong> path parameters can be defined either at the path creation or during its editing. The <strong>2D</strong> path parameters<br />

dialog box is called by the option<br />

Set path parameters<br />

Number of Point for Circle Approximation. This parameter<br />

defines the accuracy of drawings of circles and circular arcs that<br />

are components of <strong>2D</strong> paths.<br />

Level. Places the path being created on a certain visibility level used<br />

for hiding some elements from display as necessary.<br />

Layer. This parameter assigns the path being created to a certain<br />

layer.<br />

Color. This parameter defines the color used for the path display.<br />

Set as default. Turning on this flag means the current dialog parameter settings will be used in future for<br />

constructing new construction lines.<br />

Editing <strong>2D</strong> Paths<br />

By editing a path, one can add or delete nodes, select a different construction line to connect the end nodes of<br />

a particular path segment, as well as define new parameters.<br />

Editing is done in the command “EC: Edit Construction”.<br />

Keyboard Textual Menu Icon<br />

“Edit|Construction|Path”<br />

A path can be selected by pointing the cursor and clicking , or by the option:<br />

Select Spline<br />

As a result, the selected path gets highlighted, and its nodes marked.<br />

Editing the Type of a Particular Path Segment<br />

To modify the type of a particular path segment, do the following steps:<br />

• Select a path;<br />

• Using the mouse, select the path segment whose type needs to be modified;<br />

• Select a construction entity defining the new type of the path segment: line, circle, ellipse and spline<br />

(including other <strong>2D</strong> paths). Selection of a construction entity is done using the appropriate option. The<br />

end nodes of the path segment being edited must belong to the selected construction entities;<br />

251

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