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- INQUIRE COMMANDS
- ****************
-
- These commands allow for enquiries on the graphics information held
- on file.
-
- The commands are:-
-
- POINT:- Returns the point number and co-ordinates.
- PT-PT:- Returns the point to point distance as defined.
- PT-LN:- Returns the normal distance from a point to a line.
- LINE:- Returns the Pen Number used for the line. Also the
- distance between the end points as well the angle
- and bearing.
- Alternate selection gives the total length of
- lines under the same line type.
- CIRCL:- Returns the radius, arc length of circles/arcs.
- Also the area for circles/ellipses, as well as the
- Pen Numbers for the boundary and the hatching.
- Alternate selection gives the total length of
- arcs under the same line type.
- PLANE:- Returns the number of vertices, perimeter, area, and
- the centroidal co-ordinates, as well as the Pen Numbers
- for the boundary and the hatching.
- SYMBL:- If enquiring on individual symbols, it will return
- the Pen Number used for the symbol. If enquiring on
- sub-drawing (with alternate selection), usage of
- symbols that have a name would be tabulated. This
- can be filed and used with user written interfacing
- programs such as TALLY listed under UTILI INTERface.
- CURVE:- Returns the Pen Number used for the curve, and the
- length of the curve.
- Alternate selection gives the total length of
- curves under the same line type.
- ANGLE:- Gives the anti-clockwise angle from Pt 1 to Pt 3
- through Pt 2.
- LIMIT:- Gives the current count of attribute usage (including
- deleted attributes and those in REF SUBDRAWING) and
- the program limits.
-