Abstract
In the front and rear graphics operations of finite element analysis software, traditional methods use ray picking and callback functions to complete the graphics picking interaction, which is inefficient and inflexible, which affects the software user experience. The method in this paper adopts the ray picking algorithm based on the BVH structure and the signal-slot data communication mechanism of Qt to realize multi-threaded concurrent communication, supports efficient and free interactions such as single-point picking of 3D models and rectangular frame selection, and improves the interaction friendliness and friendliness of the finite element analysis system. User operation efficiency.
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