﻿ Geometry | Line

# Geometry | Line

Toolbar:

Geometry toolbar

What to do:

 1 Edit menu > Edit Part in Part-Editor
 2 Click Geometry toolbar > Add Line.
 3 Drag in the graphic-area to specify the start-Point and then its end-Point.

'Drag': mouse-button-down [start-Point], move your mouse-pointer, mouse-button-up [end-Point].

The Line is now in the graphic-area.

Free-Points and Merged-Points

Add the start-Point and end-Point of the Line as:

 Free-Points Add constraints and dimensions to the start-Point and end-Point later. You can delete constraints and dimensions, if necessary. Do this for a layout sketch. See Also: How to Delete a Constraint Merged-Points Do this to construct a 'sketch-path' See: Hover+Drag , merge-points.

More details of a Line

 1 A Line (and a CAD-Line) has an Origin and a positive X–axis direction.
 • The Origin is its start-Point.
 • The positive X–axis is from the Origin to its end-Point.
 2 Use the Origin and X–axis direction of the Line to:
 • Identify the positive direction of a Slider.

 • Identify the Origin and +X–axis of a Plane. See Add Plane

To identify which is the Line's start-Point and/or end-Point when it is constrained to other Points.

If the Line is coincident with other Points, then do:

STEP 1:

 1 Click on the Line so that it shows in the Selection-Window
 2 Right-click the Line in the Selection-Window
 3 Click 'Show element references...' in the contextual-menu

Take a note of the Point numbers in the dialog. The lowest Point number is the start-Point and Origin of the Line.

STEP 2:

 1 Click the start-Point and end-Point in the graphic-area

The Point with the lowest Point number, as noted in STEP 1, is the start-Point of the Line.

Example

How:

Selection-Window

 • 'Drag' from the start to the end Point of the Line
 • Linen +
 • Pointn at each end of the Line

Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd