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990 B
990 B
弹性插件（Elasticity plugins）
这些是第一方插件，基于离散连续介质力学模型实现被动力。它们可以应用于 flexes（柔性体）和 bodies（刚体，通过 composite 复合体功能）。示例模型可在此文件夹中找到。
缆绳（Cable）
在 cable.cc 中实现。
缆绳插件离散化了一个不可伸长的一维连续介质。它旨在模拟细杆的扭转和弯曲，在这些场景下拉伸形变与其他形变模式相比可以忽略不计。
参数：
twist[Pa]：扭转刚度。bend[Pa]：弯曲刚度。flat[bool]：若为 true，应力平衡构型为直缆状态；若为 false 或未指定，则为 XML 中定义的初始构型。vmax[N/m^2]：若大于零，缆绳将根据机械应力着色；该值代表颜色标尺中的最大应力。