Purpose

The purpose of this paper is to propose an interactive 2D–3D garment parametric pattern-making and linkage editing scheme that integrates clothing design, simulation and interaction to design 3D garments and 2D patterns. The proposed scheme has the potential to satisfy the individual needs of fashion industry, such as precise fit evaluation of the garment, interactive style editing with ease allowance and constrained contour lines in fashion design.

Design/methodology/approach

The authors first construct a parametric pattern-making model for flat pattern design corresponding to the body dimensions. Then, the designing 2D patterns are stitched on a virtual 3D mannequin by performing a virtual try-on. If the customer is unsatisfied after the virtual try-on, the adjustable parameters (appearance parameters and fit parameters) can be adjusted using the 2D–3D linkage editing with hierarchical constrained contour lines, and the fit evaluation tool interactively provides the feedback.

Findings

The authors observed that the usability and efficiency of the existing garment pattern-making method simplifies the garment pattern-making process. The authors utilize an interactive garment parametric flat pattern-making model to generate an individualized garment flat pattern that effectively adjust and realize the local editing of the garment pattern-making. The 2D–3D linkage editing is then employed, which alters the size and shape of garment pattern for a precise human model fit of the 3D garment using hierarchical constrained contour lines. Various instances have validated the effectiveness of the proposed scheme, which can increase the reusability of the existing garment styles and improve the efficiency of fashion design.

Research limitations/implications

First, the authors do not consider the garment pattern-making design of sophisticated styles. Second, the authors do not directly consider complex garment shapes such as wrinkles, folds, multi-layer models and fabric physical properties.

Originality/value

The authors propose a pattern adjustment scheme that uses the 3D virtual try-on technology to avoid repetitions of reality-based fit tests and garment sample making in the designing process of clothing products. The proposed scheme provides interactive selections of garment patterns and sizes and renders modification tools for 3D garment designing and 2D garment pattern-making. The authors present the 2D–3D interactive linkage editing scheme for a custom-fit garment pattern based on the hierarchical constraint contour lines. The spatial relationship among the human body, pattern pieces and 3D garment model is adequately expressed, and the final design result of the garment pattern is obtained by constraint solving. Meanwhile, the tightness tension of different parts of the 3D garment is analyzed, and the fit and comfort of the garment are quantitatively evaluated.

中文翻译：

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基于约束轮廓线的3D交互式服装参数制版与联动编辑

目的

本文的目的是提出一种交互式2D-3D服装参数化制版和联动编辑方案，将服装设计、仿真和交互集成到设计3D服装和2D图案中。所提出的方案有可能满足时装行业的个性化需求，例如服装的精确合身评估、轻松允许的交互式风格编辑以及时装设计中的约束轮廓线。

设计/方法/方法

作者首先构建了与车身尺寸相对应的平面图案设计的参数化制版模型。然后，通过执行虚拟试穿将设计的 2D 图案缝合在虚拟 3D 人体模型上。如果客户在虚拟试穿后不满意，可使用分层约束轮廓线的2D-3D联动编辑调整可调参数（外观参数和合身参数），合身评估工具交互反馈。

发现

作者观察到，现有服装打版方法的可用性和效率简化了服装打版过程。作者利用交互式服装参数化平面制版模型生成个性化的服装平面化图案，有效地调整和实现服装制版的局部编辑。然后采用 2D-3D 联动编辑，使用分层约束轮廓线更改服装图案的大小和形状，以实现 3D 服装的精确人体模型合身。各种实例验证了所提出方案的有效性，可以增加现有服装款式的可重用性，提高服装设计的效率。

研究限制/影响

首先，作者没有考虑复杂款式的服装制版设计。其次，作者没有直接考虑复杂的服装形状，如皱纹、褶皱、多层模型和织物物理特性。

原创性/价值

作者提出了一种图案调整方案，利用3D虚拟试穿技术，避免在服装产品设计过程中重复基于现实的合身测试和服装样品制作。所提出的方案提供了服装图案和尺寸的交互式选择，并为 3D 服装设计和 2D 服装图案制作提供了修改工具。作者提出了基于层次约束轮廓线的定制服装图案的 2D-3D 交互式联动编辑方案。充分表达了人体、样片和3D服装模型之间的空间关系，通过约束求解得到服装图案的最终设计结果。同时，对3D服装不同部位的松紧张力进行分析，