Tools

Misc

Define location of points

Assign the location of a point by "Absolute" or "Relative" reference (Cartesian coordinates):

• Absolute (x,y) is the horizontal (x position), vertical (y position) from origin (0,0).

• Relative (@x,y) is the horizontal (x distance), vertical (y distance) from current or selected point.

Length and Angle: (@l<d) is the distance or length (l) and the angle in degrees from zero (d) from the current or selected point (polar coordinates).

Note that:

	Degrees		Direction
	0 (or 360)		is Right / East / 3 o'clock
	90		is Up / North / 12 o'clock
	180		is Left / West / 9 o'clock
	270		is Down / South / 6 o'clock

Refer to Related links below.

Line

2 points: Draw a line between two assigned points (x,y) (x,y).

Angle: Draw a line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length and angle.

Horizontal: Draw a horizontal line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length.

Vertical: Draw a vertical line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length.

Rectangle: Draw a rectagle by assigning the points (x,y) (x,y) of two diagonally opposite corners.

Parallel through point: Draw a defined number of lines parallel to a selected existing line through an assigned point (x,y).

Parallel: Draw a defined number of lines parallel to a selected existing line with a defined distance (l) between lines.

Bisector: Draw a defined number of lines bisecting two existing non-parallel lines (e.g. at an angle to each other with or without a common point).

Tangent (P,C): Draw a line from an assigned point (x,y) tangent to an existing circle.

Tangent (C,C): Draw a line tangent to two existing circles.

Tangent Orthogonal: Draw a line tangent to an existing circle and perpendicular to an existing line.

Orthogonal: Draw a line of a defined length perpendicular to an existing line placing the centre at an assigned point (x,y).

Relative Angle: Draw a line with a defined length and at a defined angle relative to an existing line placing the centre of the line at an assigned point (x,y).

Polygon (Cen,Cor): Draw a polygon with a defined number of sides assigning the centre point (x,y) and point of one vertex (x,y).

Polygon (Cen,Tan): Draw a polygon with a defined number of sides assigning the centre point (x,y) and point of the centre of one side (x,y).

Polygon (Cor,Cor): Draw a polygon with a defined number of sides assigning the two points of one side (x,y) (x,y).

Circle

Centre, Point: Draw a circle with a radius defined by assigning a centre point (x,y) and a point (x,y) on the circumference.

2 Points: Draw a circle with a diameter defined by assigning two opposite points (x,y) (x,y) on the circumference.

2 Points, Radius: Draw a circle with two points (x,y) (x,y) on the circumference and with an assigned radius (length).

3 Points: Draw a circle assigning three points (x,y) (x,y) (x,y) on the circumference.

Centre, Radius: Draw a circle with a defined radius (l) centred at an assigned point (x,y).

Tangential, 2 Circles, 1 Point: Draw a circle tangential to two existing circles and assigning a centre point (x,y) to establish the radius.

Tangential, 2 Points: Draw a circle tangential to an existing circle and define the diameter and placement by assigning two points (x,y) (x,y) on the circumference.

Tangential, 2 Circles, Radius: Draw a circle tangential to two existing circles with a defined radius (l).

Tangential, 3 Circles: Draw a circle tangential to three existing circles.

Curve

Centre, Point, Angles:

3 Points:

Arc Tangential:

Spline:

Spline through points:

Ellipse Arc (Axis):

Freehand Line:

Ellipse

Axis:

Foci Point:

4 Points:

Center, 3 Points:

Inscribe:

Polyline

Polyline:

Add node:

Append node:

Delete node:

Delete between two nodes:

Trim segments:

Create Equidistant Polylines:

Create Polyline from Existing Segments:

Select

Deselect All:

Select All:

Select Entity:

(De-)Select Contour:

Select Window:

Deselect Window:

Select Intersected Entities:

Deselect Intersected Entities:

(De-)Select Layers:

Invert Selection:

Dimension

Aligned:

Linear:

Vertical:

Horizontal:

Radial:

Diametric:

Angular:

Leader:

Modify

Order:

Move / Copy:

Rotate:

Scale:

Mirror:

Move and Rotate:

Rotate Two:

Revert direction:

Trim:

Trim Two:

Lengthen:

Offset:

Bevel:

Fillet:

Divide:

Stretch:

Properties: Allows for the modification of a single entity's properties, including:

• Layer
• Pen color
• Pen width
• Pen Line type
• Geometry (depending on type of entity)
  • Line
    • Start point (x)
    • Start point (y)
    • End point (x)
    • End point (y)
  • Circle:
    • Center (x)
    • Center (y)
    • Radius (l)
  • Etc...

Attributes: Allows for modifying the common attributes of one or more selected entities, including:

• Layer
• Pen color
• Pen width
• Pen Line type

Explode Letters into Letters:

Explode:

Delete selected:

Info

Distance Point to Point:

Distance Entity to Point:

Angle between two lines:

Total length of selected entities:

Polygonal Area:

Related

Points: http://wiki.librecad.org/index.php/Points

Snapping: http://wiki.librecad.org/index.php/Snapping

http://wiki.librecad.org/index.php/Category:Tools

http://wiki.librecad.org/index.php/Commands

http://wiki.librecad.org/index.php/A_short_manual_for_use_from_the_command_line

http://wiki.librecad.org/index.php/User_Interface

http://wiki.librecad.org/index.php/LibreCAD_users_Manual