Dear News reader,

I am looking out for a shareware graphics library on DOS (in C or C++) for

simple computations as follows :

- Given two points form a line equation.

- Given three points form an arc equation.

- Given 2 end points and the centre point form an arc equation.

- Given 2 end points and radius and direction form the arc equation.

- Given the centre and radius form an circle equation.

- Find the intersection of :

Two lines, Line and arc, Two arcs, Line and circle and so on.

- Find a tangent to an arc or a circle at a given point.

- Find whether a point lies on a line or on an arc or on a circle.

- Find the perpendicular distance between a point and a line.

- Given a line and a point on the line, get a line perpendicular to that line.

- Given two lines state whether they are co-linear.

- Given two arcs state whether thay are co-arc.

These are the kind of computations I need to perform. I am basically looking

for a library that supports this, but I am also interested in studying the

same. Hence it will be extremely helpful if I can get the source code also.

This will also help me if I need to do any modifications.

You can mail your reply to me at the following internet address :

This being a group account please specify "ATTN : MANISH" in the subject.

Thanks a lot.

Manish (Bombay - India).