A method of realizing rigid body motion

Abstract

The present invention relates to the field of three-dimensional animation design, and provides a method for realizing rigid body motion, including: step 100, sampling motion data at N+1 moments in the rigid body motion process; step 200, performing data processing on the sampled motion data through a difference quotient algorithm, Obtain the unit tangent vector and curvature vector of the translation motion at each moment, and the unit tangent vector and curvature vector of the rotation motion; step 300, carry out the construction of rigid body translation motion; step 400, carry out the construction of rigid body rotation motion; step 500, according to The rigid body translational motion constructed in step 300 and the rigid body rotational motion constructed in step 400 construct the overall motion process of the rigid body to obtain the motion trajectory curve of each point on the rigid body; step 600, according to the obtained motion trajectory curve of each point on the rigid body , so that the rigid body moves according to the trajectory curve. The invention is closer to the real object motion scene in real life, and enhances the interactivity of the design.

Description

technical field [0001] The invention relates to the field of three-dimensional animation design, in particular to a method for realizing rigid body motion. Background technique [0002] Rigid body motion was originally a concept in physics. If the motion of an object in three-dimensional Euclidean space does not change its shape and size, but only changes its position in space, then this motion of the object is called rigid body motion. Rigid body motion design is an important problem and a basic task in related fields such as 3D animation design and robot trajectory planning. [0003] In the process of 3D animation design and robot trajectory planning, the design and realization of rigid body motion trajectory is often involved. If the designer manually arranges every point on the rigid body motion trajectory, it is obviously a huge workload, and in some cases it does not conform to reality. The actual trajectory of objects in life. In the case of known motion data at ce...

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves technical problems such as geometric distortion that may occur in the rigid body motion design of the prior art, excessive restrictions on the motion data that needs to be fitted, especially rotational motion data, and lack of interactivity, and proposes a method for realizing rigid body motion that is closer to Real object movement scenarios in real life enhance the interactivity of the design and thus have more application value

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