# 3.8.14: 插值形状 (Interpolate Shape) 🔷

**“Interpolate Shape（插值形状）”**运算器允许用户使用基本手段跨越设计空间：一个直接被接入**“Mapper（映射器）”**运算器的Karamba3D模型充当该空间的原点。任意数量的其他模型 —**“Interpolate Shape（插值形状）”**运算器的输入—分别定义了一个坐标轴。线性插值发生在原点的模型与定义轴的模型之间。参数值0.0对应原点，参数值1.0对应定义相应轴的模型。

A parameter value of 0.0 corresponds to the origin, 1.0 to the model defining the corresponding axis.

![图3.8.14.1：在中跨单荷载下优化简支梁形状的定义](/files/-M9XuWdODVKIC5Cqfrtj)

图3.8.14.1显示了一个由简支梁的前30个本征形（3.18.14.2中的粗红线）作为设计空间形状尺寸的定义。

Galapagos用于确定该设计空间中的位置，从而在中跨单荷载下导致最小变形。很明显（考虑到悬挂模型），最佳形状在荷载作用下会出现明显的扭结，否则将会是直的。图3.8.14.2显示了优化运行的结果，该结果在很大程度上类似理想形状。通过在设计空间中包含更多的形状尺寸，可以在荷载下实现更大的弯曲。

![图3.18.14.2：使用前30个本征形（粗红线）作为中跨单荷载下设计空间的轴](/files/-M9XuWdRkM_v9v05rxlI)


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