# left click anywhere on the workplane to begin drawing the line.
# left-click a second time to complete the line.
Â
NOTES, SPECIAL CASES OR EXCEPTIONS: When the check box '''Lock Center''' is checked, changing the line's length expands or shrinks it equally from both ends. To create a line perpendicular to the current work plane, hold down the {{key|Alt}} key while dragging the mouse to establish the line's end point.
|}
PERPENDICULAR LINES<table><tr>To create a line perpendicular to the work plane, hold down the '''ALT''' key while left-clicking to define the second point  DIALOG PARAMETERS '''Length''' establishes the distance from a line's origin and end node. '''Lock Base''' anchors the line's LCS origin to its current location. When Lock Base is enabled, changes to the line's length are added equally to both sides of the line.<td> [[FileImage:cad_curve1.png|thumb|left|480px|The property dialog of the line object.]]</td></tr><tr><td> [[FileImage:vert_line_new.png|thumb|left|550px|Drawing a vertical line object.]]</td></tr><tr><td> [[FileImage:18_Line_tn_new.png|thumb|left|550px|Drawing a horizontal line object.]]</td></tr></table>
== Circle Tool ==