Arc position relationship information extraction method including phase information for automatic vectorization

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a method for extracting arc positional information during automatic vectorization.;2. The technical problem to be solved by the invention;SUMMARY OF THE INVENTION An object of the present invention is to provide an arc positional relationship information extraction method which enables to automatically extract arc positional relationship information including phase information during vectorization using vectored data derived from blind line tracing method.;3. Summary of Solution to Invention;The present invention includes a first step of selecting an advancing direction according to the arc direction by querying the arc after assigning an arbitrary number to the arcs forming the polygon; A second step of determining the outer polygon by selecting the arc according to the selected advancing direction and setting the polygon number according to the advancing direction and the selected arc direction; And after selecting an arbitrary arc, selecting a direction of travel according to the polygon number of the selected arc, selecting the next arc regardless of the direction of travel, and inputting a polygon number according to the direction of travel and the direction of the selected arc to determine the internal polygon. Includes three steps.;4. Important uses of the invention;The present invention is used to extract the arc positional information including the phase information during vectorization.