Acceleration Axes in Spatial Kinamatics II.

Patterns as Abstractions of Spatial Axes

The decision of how to model patterns as elements of formal systems is a yet sparsely covered research topic. The present article introduces an approach which understands patterns as non-linguistic carriers of formal semantics in models. The notion of patterns is embedded into a theory which links spatial orientation and navigation to the constitution of semantics in human understanding. Inside...

Spatial Influence of Environmental Axes in a Baseball Field

We investigated the influence of environmental axes in a baseball field. In Experiment 1, participants walked either a path in the prototypical orientation (home plate to second base) or one which was rotated 225. Recall for object locations was best when participants imagined themselves aligned with axes salient from the experienced orientation. In Experiment 2, when learning was through a rou...

Kinematic Analysis of Spatial Fixed-Axes Pairs Using Configuration Spaces

We present a kinematic analysis program for spatial higher pairs whose parts rotate around or translate along fixed spalial axes. The part geometry is specified in a parametric boundary representation consisting of planar, cylindrical. and spherical patches bounded by line segments and circular arcs. The program consis[S of two pans: contact curve computation and configuration space computation...

Contact Analysis of Spatial Fixed-Axes Pairs Using Configuration Spaces

We present the first configuration space computation algorithm for pairs of rigid parts that move along fixed spatial axes. The motivation is contact analysis for mechanical design of spatial systems and of planar systems with axis misalignment. The part geometry is specified in a parametric boundary representation using planes, cylinders, and spheres. Our strategy is to exploit the specialized...

Hardware Acceleration for Spatial Selection and Join