The method of combining line segments (Lines) into closed graphics (Shapes) in Allegro

1. Execute Shape-Compose Shape, here we take the board frame as an example, select Board Geometry for the Active class item, select Outline for the Add shape to subclass item 2. Only check the

Lines item in Find, as shown in the figure

3. When selecting a line segment Don't frame the entire outline, use Temp group to select one by one, and complete after selection

4. After combining the line segments into Shape, you can see that there will be a thin line inside the original line segment, which is the Shape. Delete the original line segment and only leave the Shape.