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    CAD functions:
    See operating CAD ..

    see also Codes Variables

    Variables use shortcut key V.

    Implicit definition of variables by function VAL():
      Example: VAL(P20 P21)  - the distance between 2 points.

    Variables are temporarily displayed as horzontal lines;
      the length indicates the value.

      V Variable - Value
    V - variable value
    Direct allocation of a variable

    With Pageup / Page Down key a defined variable.

      V X/Y/Z-part PT|VC
      get the X- or Y- or Z-part of a point or of a Vector.

    # extract the x-coordinate of a point
    V20 = X(P20)

      V PT-PT Dist.[Direction]
      Variable = length between 2 points [into direction]

    [Direction]   optional; keine Angabe: direct length between 2 points.
                  Distance along a vector: define a vector

    Example:
    V20 = P20 P21
    # distance from point P20 to point P21 into direction Z:
    V21=P20 P21 DZ

      V LN      length
    V LN Length
      Variable = length of a Distance

    V20 = L20

      V PT - LN Perp.Dist
    PT-V LN normal distance
      Variable = Normal distance of a point from a distance

    V20 = P20 L20

      V CIR     Radius
      Variable = radius of a circle

    V20 = C20

      V Angle line/vector
      Variable = angle of a line or vector

      Line/Vector              provide line or vector
        - get angle az in TOP-view between line and the X-axis of the active coord.system

      [tilt-angle]             Pageup / Page Down ("PERP")
        - tilt-angle ay: the angle between the line and the XY-plane of the active coord.system

      [REVers]                 Pageup / Page Down ("REV")
        - 180-degree complementry angle (180 - angle)

      [complement]             Pageup / Page Down ("CX")
        - 360-degree complementry angle (360 - angle)

    V20 = ANG D(L20)

     restore vector from angles:
       - vector vcx = rotate X-axis around Z-axis angle = az;
       - vector = rotate vcx around the (new) Y-axis angle = ay
           (the new Y-axis is in the XY-plane of the active coordinate-system)

      V Angle 2 lines/vectors
      Variable = angle between 2 lines or vectors

      Line/Vector 1            provide line or vector

      [Line/Vector 2]

      [REVers]                 Pageup / Page Down ("REV")
        - 180-degree complementry angle (180 - angle)

      [complement]             Pageup / Page Down ("CX")
        - 360-degree complementry angle (360 - angle)

    V20 = ANG L21 L20