A method, system, and device for real-time display of cross-sectional meshes based on discrete layer indexing.

CN121962530BActive Publication Date: 2026-06-30XPEEDIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XPEEDIC CO LTD
Filing Date
2026-04-02
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies in large-scale unstructured or hybrid mesh scenarios have high computational overhead for cross-section display, cannot achieve real-time interaction, and strict intersection or projection methods are prone to destroying the topology, resulting in mesh distortion and screen flickering when continuously moving cross-sections.

Method used

A discrete layer index-based approach is adopted. By obtaining the center point coordinates and normal vectors of the mesh surface, candidate cross-section mesh surfaces are filtered, a discrete layer index and mapping relationship are constructed, and the target cross-section mesh surface is quickly located and rendered using the discrete layer index, avoiding real-time geometric calculations. Combined with memory caching and single-sided rendering strategies, the realism and continuity of the mesh topology are ensured.

Benefits of technology

It achieves fast-response cross-sectional mesh display, avoids lag caused by high computational overhead, ensures the accuracy of mesh topology, solves the problems of screen flickering and discontinuous display, and improves the efficiency of engineering analysis.

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Abstract

This invention provides a method, system, and device for real-time display of sectional meshes based on discrete layer indexes. The method includes: parsing the center point coordinates and normal vectors of each mesh facet; selecting mesh faces whose principal direction aligns with a specified sectional direction based on the normal vectors of each mesh facet as candidate sectional mesh faces; obtaining the coordinate values ​​of the center points of each candidate sectional mesh facet in the specified sectional direction to determine the layer merging tolerance; merging candidate sectional mesh faces within the same coordinate range into the same discrete layer based on this value; assigning a discrete layer index and representative coordinate values ​​to each discrete layer and constructing a discrete layer mapping relationship; when receiving target sectional coordinate values, determining the corresponding target discrete layer from the discrete layer mapping relationship based on the representative coordinate values ​​of each discrete layer; and selecting a set of target mesh faces for rendering and display based on the relative positional relationship between each mesh facet within the target discrete layer and the target sectional coordinate values. According to the technical solution of this invention, rapid positioning and stable display of sectional mesh data can be achieved.
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