Markers are stroked using the line drawing method of the class Graph. This means that any stroked figure can become a marker. The index of the marker. The first marker has index 1. The number of vertices required to stroke the marker.
All positions are relative to the center of the marker.
Integer array containing the pixel y postions of the vertices. The index of the marker to delete. Markers start at index 1. Clear All markers. All line drawing is relative to the previous position.