Garment Pattern Dart Simulation Using Pivot Rotation

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Solution Overview

Problem

Existing methods struggle to effectively display and simulate multiple darts on a garment pattern piece to achieve a desired three-dimensional contour.

Innovation Solution

A method and apparatus that allow for the display and simulation of multiple darts by generating a second dart in association with a first dart on a pattern piece, using a pivot point to change the width of the first dart and determining the width of the second dart based on this change.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If multiple darts are displayed on a pattern piece to create a desired 3D contour, then the accuracy of the three-dimensional contour is improved, but the complexity of displaying and simulating multiple darts increases

Engineering Contradiction:
Improveaccuracy of three-dimensional contourVSAvoidcomplexity of displaying and simulating multiple darts
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pattern piece is divided into multiple duplicate pattern pieces, each containing a specific dart. This segmentation allows each dart to be independently managed and simulated, making the complex task of handling multiple darts more manageable while maintaining accurate 3D contour representation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A pivot point is introduced as an intermediary element around which duplicate pattern pieces are rotated. This pivot point serves as a reference for determining dart widths and positions, simplifying the simulation process by providing a consistent center of rotation for all darts on the pattern piece

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If the width of darts is adjusted to achieve accurate 3D contour simulation, then the manufacturing precision is improved, but the time required for simulation increases

Engineering Contradiction:
Improveaccuracy of dart widthVSAvoidtime required for simulation
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The pivot point is determined in advance based on the pattern piece geometry before dart width adjustments are made. This preliminary action establishes a reference framework that guides subsequent dart width calculations, reducing the time needed for iterative adjustments while maintaining precision

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The dart width is determined as a function of the rotation angle and pivot point position. By changing these parameters systematically, the simulation can accurately adjust dart widths to achieve the desired 3D contour while following a structured process that minimizes time consumption

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250098804A1Method And Apparatus For Displaying Darts On Pattern Pieces Of Garment
Publication Date: 2025.03.27 CLO VIRTUAL FASHION INC
  • US20250098804A1 patent drawing
  • US20250098804A1 patent drawing
  • US20250098804A1 patent drawing

AI summary

A method and apparatus for displaying a dart on a pattern piece receives a position of a second dart to be generated in association with a first dart included in at least one pattern piece that forms a garment, sets a pivot point by an intersection point between a first extension line extending from the first dart and a second extension line extending from the second dart, generates the second dart in the pattern piece based on a width of the first dart that is changed by rotating at least a portion of the pattern piece around the pivot point, and displays a pattern piece including the generated second dart.