Breaking Elements

You can apply the Break command to intersecting lines and create a point at the geometry intersection. Break lets you break any type of curve, except the composite curves. You can use any element to break curves.

This task shows you how to:

Use a Point on the Line
Use a Point Belonging to Another Line
Use a Point

Before you begin:

Create two lines and a point and activate the from the Sketch section of the action bar.

Use a Point on the Line

You can break a line at a point on the line. For this, you need to select a line and indicate where to create the break.

From the Sketch section of the action bar, click Break .
Select the line to be broken.
The start point and the probable break point are displayed immediately. The break point changes as you move the pointer over the line.
Indicate where to create the break.

The line is broken at the indicated point. The broken entity is highlighted in blue and a point is created. The line is now composed of two segments. Coincidence constraints are created and represented by two small concentric circles.

Use a Point Belonging to Another Line

You can break a line at a point using a point on another line. For this you need to select the line and indicate on the another line where to break the selected line. The line is broken from the projection of the selected point and it also considers the possible constraints associated with the two elements.

Click Break .
Select the line to be broken.
The start point and the probable break point are displayed immediately.

Select the second line.

The projection of the selected line is displayed along with the possible constraint.

The line is broken from the projection of the selected line which intersects the projection of the first line considering the possible constraint.

Tip: Hold down Shift while selecting the second line if you do not want to consider the possible constraints. In this case, the line is broken from the projection of the selected point: a projection point of the selected point is created.

The line is now composed of two segments. Coincidence constraints are created.

Use a Point

To break a line at point, select a line and a point. The line is broken from the projection of the selected point: a projection point of the selected point is created. The line is now composed of two segments. Coincidence constraint is created.

Click Break .
Select the line to be broken.
Select the breaking point:
- Directly to project vertically
- With Shift key pressed to project orthogonally to the curve
The projection of the point is automatically displayed.

Vertical projection (Shift key not pressed)

Orthogonal projection (Shift key pressed)

The line is broken from the projection of the selected point: a projection point of the selected point is created. The line is now composed of two segments. Coincidence constraints are created.