Displaying text on path

摘要

A method of displaying text on a path includes creating a mapping between distances along the path and points on a line based on changes in direction of the path, composing glyphs on the line, having a total line length defined in accordance with the mapping, to form a composed line, associating the glyphs with the path in accordance with the mapping and the composed line, and outputting the association of the glyphs with the path for display of the glyphs along the path.

主权项

1. A computer-implemented method using a computing system having a processor and memory, the computer-implemented method comprising:
creating, via the processor, a mapping between distances along a path and points on a line based on changes in direction of the path, wherein creating the mapping includes segmenting the path, based on a font size associated with glyphs, wherein the path is represented as interconnected segments, each having a length corresponding to the font size, after the segmenting, calculating an advance value for each of the segments representing the path based on a change in angle of the path with respect to a current segment, and calculating points on the line and a total line length based on the advance values; composing the glyphs on the line, having the total line length defined in accordance with the mapping, to form a composed line; associating the glyphs with the path in accordance with the mapping and the composed line; and outputting the association of the glyphs with the path for display of the glyphs along the path.