Modifying Sketch Lines

Extend/shorten

The command changes the length of line keeping its trajectory.

Upon calling the command, you need to select an open graphic line, that you want to extend or shorten. The selected line will be highlighted. If an arc or a spline is selected, a trajectory of possible extension is displayed as a dashed blue line. A circular arc may be extended along the coinciding full circle, an elliptical arc - along the coinciding full ellipse. Shortening a spline sets a negative value of a Start extension or End extension in spline's parameters. Thus, all information about the spline's initial configuration is preserved, so the initial configuration can be used later as a trajectory of possible extension. If a start or end (depending on which point is being edited) extension value is equal or above zero, then the spline can only be shortened, because the trajectory of possible extension is not defined.

A preview of the operation result is shown as a continuous blue line drawn over the initial configuration of selected element. The ending point of the selected element, which was more far from the cursor then the other end at the moment of element's selection, will retain its position in the resulting line. The other ending point will follow the cursor, thus defining the second end of the resulting line. Upon moving the cursor over a line intersecting the initial line, the ending point snaps to the intersection. Place the ending point in the desired position by moving the mouse and press to finish the operation.

1 - Possible trajectory of spline's extension

2 - Configuration of spline before calling the current command

3 - Preview of the operation result.

Trimming

The command deletes a portion of a line bounded by other lines.

Upon calling the command, you need to select a section to be deleted. The selected section can be bounded on one or two sides by any graphic line (if you choose a line that is not limited by anything, the hole line will be deleted). If the free end of the line was selected, it will be trimmed by the nearest intersecting line. If the selected line is limited by two intersections, then the part of the line between intersections will be removed.

When trimming a spline, new characteristic points of spline, created at the intersections with trimmed section boundaries, replace the initial points located at deleted sections. Behind this new points, the spline is not defined by anything, i.e. unlike the Extend/Shorten command, there are no invisible points defining spline geometry outside the visible line of the spline.

Split

In the ribbon, as well as in the automenu of the Sketch command, split options are grouped into a drop-down list. The presence of the drop-down list is indicated by the black triangle near an icon of an option displayed, when the list is folded. In order to unfold the list, either click a triangle in the ribbon, or click and hold on an icon of an option displayed, when the list is folded. This icon corresponds to an option used last in the current CAD session. When the Sketch command is launched, any option can be called via keyboard without unfolding the list.

The Split command allows you to split an existing graphic line into two at a specified point. To do this, press to select a graphic line. It will be highlighted and a preview of the point splitting the line into two parts will start following the cursor along the line. Moving the cursor over a line intersecting with the current line snaps the splitting point to the intersection. After pressing , the point is fixed and the line is divided into two.

When a command is executed, two characteristic points are created in the specified place: each of which belongs to two new lines.

If the line is closed, for example, a circle, an ellipse, or a closed spline, then you need to specify two split points.

Split into Parts

To split a line into an arbitrary number of equal parts, use the command:

After calling the command, you need to press to specify the line you want to break. If you select a closed line (circle, ellipse, closed spline), you must additionally specify the starting point of the split.

As a result, the selected line is divided into a specified number of equal parts. The resulting lines are not connected to each other and can be edited separately.

The number of parts into which the line will be broken is set in the parameters window.