Scale-adaptive fonts and graphics
Scale-adaptive fonts and graphics are disclosed. In some embodiments, an indication of a desired overall size for the graphic is received. The graphic is scaled to the desired overall size. A shape of the graphic is adapted to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic in a manner that preserves one or more stylized features of the shape.
1. A method of scaling a graphic, comprising:
receiving an indication of a desired overall size for the graphic;
scaling the graphic to the desired overall size via a processor; and
adapting a shape of the graphic to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic in a manner that preserves one or more stylized features of the shape;
wherein adapting the shape of the graphic to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic by an amount computed by associating with each unit length of an outline of the at least a portion of the graphic an equal and like electric charge and for each unit length determining a displacement such that an equal amount of work is done to each unit length.
2. A method as recited in claim 1 , wherein:
scaling the graphic to the desired overall size includes scaling an associated spine in accordance with the desired overall size.
3. A method as recited in claim 1 , wherein the graphic comprises a glyph.
4. A method as recited in claim 1 , wherein the graphic comprises a font character.
5. A method as recited in claim 1 , wherein the graphic comprises a vector graphic.
6. A method as recited in claim 1 , further including providing for the graphic a definition that includes a description of the outline and a description of a spine.
7. A method as recited in claim 6 , further including providing a mapping function that maps each point on the outline to a corresponding point on the spine.
8. A method as recited in claim 7 , wherein the description of the spine and the mapping function are included in a definition of the graphic under a font encoding format that provides for such a spine description and mapping function to be included.
9. A method as recited in claim 1 , further including computing a spine for the graphic.
10. A method as recited in claim 1 , further including converting the graphic from a first description format that does not include a spine definition to a second description format that does include a spine definition, at least in part by computing a spine for the graphic.
11. A method as recited in claim 10 , further including providing an editing tool to permit one or both of the computed spine and the mapping function to be refined.
12. A system for scaling a graphic, comprising:
a processor configured to:
receive an indication of a desired overall size for the graphic;
scale the graphic to the desired overall size; and
adapt a shape of the graphic to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic in a manner that preserves one or more stylized features of the shape; and
a memory coupled to the processor and configured to provide instructions to the processor;
wherein the processor is configure to adapt the shape of the graphic at least inpart by adjusting a thickness of at least a portion of the graphic by an amount computed by associating with each unit length of an outline of the at least a portion of the graphic an equal and like electric charge and for each unit length determining a displacement such that an equal amount of work is done to each unit length.
13. A computer program product for scaling a graphic, the computer program product being embodied in a tangible computer readable storage medium and comprising computer instructions for:
receiving an indication of a desired overall size for the graphic;
scaling the graphic to the desired overall size; and
adapting a shape of the graphic to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic in a manner that preserves one or more stylized features of the shape;
wherein adapting the shape of the graphic to the desired overall scale at least in part by adjusting a thickness of at least a portion of the graphic by an amount computed by associating with each unit length of an outline of the at least a portion of the graphic an equal and like electric charge and for each unit length determining a displacement such that an equal amount of work is done to each unit length.
14. A computer program product as recited in claim 13 , wherein the equal amount of work is a preconfigured amount of work.
15. A computer program product as recited in claim 13 , wherein the equal amount of work is determined based at least in part on a scaling factor to be applied to the overall glyph.
16. A computer program product as recited in claim 15 , wherein the scaling factor is based at least in part on the desired overall size to which the glyph is being scaled.
17. A computer program product as recited in claim 13 , further comprising further adjusting the shape of the graphic to achieve a desired visual effect.
18. A computer program product as recited in claim 13 , wherein each unit length is displaced inward in a direction of an interior of the graphic in the event the graphic is scaled to a desired overall size that is larger than a starting size of the graphic prior to scaling.
19. A computer program product as recited in claim 13 , wherein each unit length is displaced outward in a direction opposite an interior of the graphic in the event the graphic is scaled to a desired overall size that is smaller than a starting size of the graphic prior to scaling.
20. A system as recited in claim 12 , wherein the equal amount of work is determined based at least in part on a scaling factor to be applied to the overall glyph.
21. A system as recited in claim 20 , wherein the scaling factor is based at least in part on the desired overall size to which the glyph is being scaled.
22. A system as recited in claim 12 , wherein each unit length is displaced inward in a direction of an interior of the graphic in the event the graphic is scaled to a desired overall size that is larger than a starting size of the graphic prior to scaling; and wherein each unit length is displaced outward in a direction opposite an interior of the graphic in the event the graphic is scaled to a desired overall size that is smaller than a starting size of the graphic prior to scaling.
23. A method as recited in claim 1 , wherein the equal amount of work is determined based at least in part on a scaling factor to be applied to the overall glyph.
24. A method as recited in claim 23 , wherein the scaling factor is based at least in part on the desired overall size to which the glyph is being scaled.
25. A method as recited in claim 1 , wherein each unit length is displaced inward in a direction of an interior of the graphic in the event the graphic is scaled to a desired overall size that is larger than a starting size of the graphic prior to scaling; and wherein each unit length is displaced outward in a direction opposite an interior of the graphic in the event the graphic is scaled to a desired overall size that is smaller than a starting size of the graphic prior to scaling.