
 INQ, Introduction
 
 Inquiry commands  are used  to inquire  about  the  relationship
 between various  elements in the current drawing. It can also be
 used to  inquire on the limits of the system, ie. what the total
 allowed number  of each  entity is  and how  many are  currently
 present.
 
 
 "INQ POINT"
 
 The following  information about  a located  point is printed to
 the prompt and dialogue area:
 
 -     Point number.
 -     Coordinates of the point.
 -     Colour of the point.
 -     Layer of the point.
 
 
 "INQ PT-PT"
 
 The following information about two located points is printed to
 the prompt and dialogue area:
 
 -     Point numbers of the two points.
 -     Coordinates of the two points.
 -     Distance between the points.
 -     Point offsets, i.e. the vector between the points.
 
 
 "INQ ANGLE"
 
 The following information about an angle defined by three points
 is printed to the prompt and dialogue area:
 
 -     Pointer number to three points.
 -     Coordinates of the three points.
 -     Angle in degrees.
 
 
 "INQ LINE"
 
 The following information about a located line is printed to the
 prompt and dialogue area:
 
 -     Pointer number of end points.
 -     Coordinates of the two end points.
 -     Direction and length of the line.
 -     Colour and layer of the line.
 

 "INQ CIRCLE"
 
 The following  information about  a located circle is printed to
 the prompt and dialogue area:
 
 -     Radius.
 -     Arc angle, length and area of sector.
 -     Plane equation.
 -     Numbers of the five defining points.
 -     Colour of the circle.
 -     Layer of the circle.
 
 
 "INQ PLANE"
 
 The following  information about  a located  plane is printed to
 the prompt and dialogue area:
 
 -     Number of vertices.
 -     Plane equation and area (the area will be reported as 0 if
       the computer's memory is too small).
 -     Centroid coordinates.
 -     Colour of the points.
 -     Layer of the points.
 -     Numbers of the first three points.
 
 
 "INQ CURVE"
 
 The following  information about  a located  curve is printed to
 the prompt and dialogue area:
 
 -     Curve type.
 -     Degree.
 -     Colour of the point.
 -     Layer of the point.
 
 
 "INQ SUB"
 
 The following information about a located sub-part is printed to
 the prompt and dialogue area:
 
 -     Part file name.
 -     Part name.
 -     Pointer number.
 -     Sub-part number in part file.
 -     Colour of the point.
 -     Layer of the point.
 
 
 "INQ CYLIN"
 
 The following information about a located cylinder is printed to
 the prompt and dialogue area:
 
 -     Colour and layer of the cylinder.
 -     Numbers of the three defining points.
 -     Sweep angle, and radii
 -     Basal, top and curved areas
 -     Enclosed volume
 
 
 "INQ RV. ARC"

 The following  information  about  a  located  revolved  arc  is
 printed to the prompt and dialogue area:-
 
 -     Colour and layer of the revolved arc
 -     Arc angle and sweep angle
 -     Numbers of the four defining points
 
 
 "INQ LIMIT"
 
 The following information about a each type of entity defined in
 QikDraw and the total heap is printed to the prompt and dialogue
 area:
 
 -     Current count.
 -     Limit.
 
 The version number of the program is also printed on the screen.
 

