Generating Ink Effects for a Digital Ink Stroke

One or more computer-readable storage media having instructions stored thereon that when executed by a processor, direct the processor to at least:

• receive an ink stroke with curvature, the ink stroke having ink stroke information;
• identify an outline of the ink stroke;
• transform the ink stroke information into surface information within the outline of the ink stroke by determining a gradient of a set of points within the outline of the ink stroke, wherein the determining of the gradient comprises, for each point, calculating a distance from the point to a nearest edge on the outline of the ink stroke to generate an edge distance value, wherein, the edge distance value for at least one point of the set of points is an approximate distance from the at least one point to the nearest edge on the outline of the ink stroke;
• and
• apply a graphic effect to the ink stroke using the surface information.

A system comprising:

• a processor;
• and
• one or more computer-readable storage media having instructions stored thereon that when executed by the processor, direct the processor to at least:
• receive an ink stroke with curvature, the ink stroke having ink stroke information;
• identify an outline of the ink stroke;
• transform the ink stroke information into surface information within the outline of the ink stroke by determining a gradient of a set of points within the outline of the ink stroke, wherein the determining of the gradient comprises, for each point, calculating a distance from the point to a nearest edge on the outline of the ink stroke to generate an edge distance value, wherein, the edge distance value for at least one point of the set of points is an approximate distance from the at least one point to the nearest edge on the outline of the ink stroke;
• and
• apply a graphic effect to the ink stroke using the surface information.