toFile -- Store result in a file.

If the option toFile=>fn with a String fn is given then mConvexHullFacesAndDuals stores the result in a file named fn.

This data can be read by the commands readConvexHullFaces and readPosHullFaces.

Functions with optional argument named toFile:

• callConvex(...,toFile=>...)
• mConvexHullFaces(...,toFile=>...)
• mConvexHullFacesAndDuals(...,toFile=>...)
• mIsSubcone(...,toFile=>...)
• mPosHullFaces(...,toFile=>...)
• mPosHullFacesAndDuals(...,toFile=>...)