What is claimed is:
1. An animation data compression apparatus, comprising:
an animation data classification unit for classifying input data into plural kinds of animation data;
an animation data priority determination unit for determining priorities on the plural kinds of animation data classified; and
an animation data compression unit for compressing the respective kinds of animation data, on the basis of the priorities determined by the animation data priority determination unit.
2. The animation data compression apparatus of claim 1, wherein the animation data compression unit compresses the plural kinds of animation data, at their respective compression ratios, on the basis of the determined priorities.
3. The animation data compression apparatus of claim 1, wherein the input data includes data representing an animation scene of three-dimensional CG.
4. The animation data compression apparatus of claim 1, wherein the input data includes multidimensional stream data.
5. The animation data compression apparatus of claim 4, wherein the animation data priority determination unit determines a priority for each of data packets of the multidimensional stream data.
6. The animation data compression apparatus of claim 1, wherein the input data includes multidimensional stream data representing an animation scene of three-dimensional CG.
7. The animation data compression apparatus of claim 1, wherein the animation data priority determination unit determines the priorities on the basis of the hierarchical structure of a CG scene.
8. The animation data compression apparatus of claim 3, wherein the animation data priority determination unit determines the priorities on the basis of the positional relationship between a viewpoint and CG objects.
9. The animation data compression apparatus of claim 1, wherein the animation data priority determination unit determines the priorities on the basis of the amounts of change in CG objects per unit time.
10. The animation data compression apparatus of claim 1, wherein the animation data priority determination unit determines intermediate priorities, based on each of at least two of the hierarchical structure of a CG scene, the positional relationship between a viewpoint and CG objects, and the amounts of change in CG objects per unit time, and performs weighted addition of the respective intermediate priorities to determine final priorities.
11. A network server for distributing CG contents including animation data, said network server having the animation data compression apparatus of claim 1, compressing animation data by using the animation data compression apparatus, and distributing the compressed animation data.
12. An animation data compression method comprising:
an animation data classification step of classifying input data into plural kinds of animation data;
an animation data priority determination step of determining priorities on the plural kinds of animation data classified; and
an animation data compression step of compressing the plural kinds of animation data, on the basis of the priorities determined in the animation data priority determination step.
13. The animation data compression method of claim 12 wherein, in the animation data compression step, the plural kinds of animation data are compressed at their respective compression ratios, on the basis of the determined priorities.
14. The animation data compression method of claim 12, wherein the input data includes data representing an animation scene of three-dimensional CG.
15. The animation data compression apparatus of claim 12, wherein the input data includes multidimensional stream data.
16. The animation data compression method of claim 15 wherein, in the animation data priority determination step, a priority is determined for each of data packets of the multidimensional stream data.
17. The animation data compression method of claim 12, wherein the input data includes multidimensional stream data representing an animation scene of three-dimensional CG.
18. The animation data compression method of claim 12 wherein, in the animation data priority determination step, the priorities are determined on the basis of the hierarchical structure of a CG scene.
19. The animation data compression method of claim 14 wherein, in the animation data priority determination step, the priorities are determined on the basis of the positional relationship between a viewpoint and CG objects.
20. The animation data compression method of claim 12 wherein, in the animation data priority determination step, the priorities are determined on the basis of the amounts of change in CG objects per unit time.
21. The animation data compression method of claim 12 wherein, in the animation data priority determination step, intermediate priorities are determined based on each of at least two of the hierarchical structure of a CG scene, the positional relationship between a viewpoint and CG objects, and the amounts of change in CG objects per unit time, and weighted addition of the respective intermediate priorities is carried out to determine final priorities.
22. A computer-readable recording medium on which a program for making a computer execute the following steps is recorded:
an animation data classification step of classifying input data into plural kinds of animation data;
an animation data priority determination step of determining priorities on the plural kinds of animation data; and
an animation data compression step of compressing the plural kinds of animation data, on the basis of the priorities determined in the animation data priority determination step.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A head edger for use with a motorized trimmer having a rotatable shaft, said head edger being comprised of a body, a plurality of radially adjustable cutting members, means for releasably attaching the plurality of cutting members to the body, a boot, said boot being adapted for positioning during use atop a head, and means for rotatably mounting the boot to the body.
2. A head edger according to claim 1, said head edger further including means for releasably engaging the body to the rotatable shall of the motorized trimmer.
3. A head edger according to claim 2, wherein the means for rotatably mounting the boot to the body includes a bearing, means for rotatably mounting the boot to the bearing and means for releasably attaching the bearing to the body.
4. A head edger according to claim 3, wherein the boot is a non-slip boot.
5. A head edger according to claim 4, wherein the body includes at least one cutout to facilitate viewing a work area.
6. A head edger according to claim 5, wherein each of the plurality of cutting members includes a mounting base and a cutting blade.
7. A head edger according to claim 5, wherein means for releasably attaching the plurality of cutting members to the body includes a slider for each of the plurality of cutting members.
8. A head edger for use with a motorized trimmer having a rotatable shaft, said head edger being comprised of:
a body, said body including at least one cutout to facilitate viewing a work area
a plurality of cutting members, said plurality of cutting members including a mounting base and a cutting blade,
means for releasably attaching the plurality of cutting members to the body, said means for releasably attaching the plurality of cutting members to the body including a slider for each of the plurality of cutting members,
means for releasably engaging the body to the rotatable shaft of the motorized trimmer,
a boot, said boot being a non-slip boot adapted for placement atop a head while said head edger is in use,
means for rotatably mounting the boot to the body, wherein the means for rotatably mounting the boot to the body includes a bearing,
means for rotatably mounting the boot to the bearing
and
means releasably attaching the bearing to the body.
9. A method for trimming grass around an object using a head edger in accordance with claim 8 and a motorized trimmer having a rotatable shaft, said object having a diameter less than the cutting diameter of the head edger, said method comprising steps of:
radially adjusting the position of the cutting members to provide a determined cutting radius,
engaging the body of the head edger to the rotatable shaft of the motorized trimmer,
placing the boot of the head edger on the top surface of an object at or near the center of the top surface of the object; and
running the motorized trimmer to cause the rotatable shaft and the engaged body of the head edger to rotate.