Study on automatic drawing method of two-dimensional mine ventilation stereogram

摘要

To reflect the spatial topology of mine ventilation roadway network more intuitively in the two-dimensional space and reduce the difficulty of ventilation stereogram drawing, with our in-depth study of double roadway elements and projection principle, combined with the secondary development technology, we put forward the automatic two-dimensional mine ventilation stereogram drawing mechanism which using "Improved real double-line method" and "Closed-polyline-hatch method" on AutoCAD platform.The paper emphatically analyzes the principle of the mechanism and the specific progress to realize module function by AutoCAD secondary development based on.Net API.The practical application proves that the new algorithm significantly reduces the amount of calculation in one-roadway blanking and system diagram expanding into two-dimensional ventilation stereogram, and reduces the insufficiency the traditional algorithm.