AI-Based 3-D Computer-Aided Design Merging

A computer-implemented method for distance-constrained merging of categorized CAD features, the method comprising:

• receiving first and second CAD files each encapsulating a mesh object;
• extracting and isolating features from each mesh object;
• categorizing isolated features into design element categories;
• for each common category, superimposing isolated features to evaluate surface-to-surface distances;
• enforcing a minimum inter-surface distance by locally adjusting vertices of at least one isolated feature;
• upon satisfying the minimum distance, concatenating vertices, edges, and faces of the isolated features to generate a merged region;
• verifying watertightness by detecting holes and automatically closing detected holes;
• and
• providing a unified mesh object comprising the merged regions to a consuming application or process.

A computer-implemented method for category-wise assembly of CAD features, the method comprising:

• receiving a plurality of CAD files each including a different mesh object;
• extracting candidate features from each mesh object;
• assigning each candidate feature to one of a plurality of predefined categories;
• constructing category-specific assemblies by, for each category:
• selecting one candidate feature from a first file and one candidate feature from a second file;
• computing centroids for the selected features;
• computing a translation based on a displacement between the centroids;
• transforming at least one selected feature by applying the translation and a determined rotation;
• and
• preventing feature overlap by enforcing a minimum inter-surface distance;
• concatenating the transformed features into a category-specific submesh;
• fusing the category-specific submeshes into a unified mesh object;
• performing structural integrity operations to repair non-manifold edges and close holes;
• and
• providing the unified mesh object to a consuming application or process.

A computer-implemented method for selective merging of categorized CAD features, the method comprising:

• receiving first and second CAD files each encapsulating a mesh object;
• extracting and isolating features from each mesh object;
• categorizing isolated features into design element categories;
• superimposing isolated features from the first and second CAD files to identify potential intersections by evaluating surface distances;
• aligning pairs of isolated features within a common category by computing centroids and applying at least one of translation or rotation;
• resolving intersections by combining the isolated features within the common category;
• generating a unified mesh object by integrating results of the combining and filling gaps to ensure watertightness;
• applying smoothing to transition regions between merged features while preserving edge features;
• and
• exporting the unified mesh object for downstream use.