Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of a part by generating a design aspect of a feature of the part with a material specification, include: receiving, by a computer aided design program, selection of a material specification for a part being designed for manufacturing; receiving, by the computer aided design program, input that defines a feature of the part; generating, by the computer aided design program, a design aspect of the feature in accordance with the material specification; and providing, by the computer aided design program, the feature with the design aspect, for facilitating the manufacturing of the part.

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of a part by three-dimensional surface pattern generation, include: receiving input identifying (i) a pattern type, (ii) a three-dimensional feature to be used to modify a three-dimensional part, and (iii) a surface of the three-dimensional part being designed; generating varied copies of the three-dimensional feature in a three-dimensional space in which the three-dimensional part is defined, wherein an aspect of the three-dimensional feature varies for at least two of the varied copies of the three-dimensional feature in accordance with a function that is applied for the pattern type, and at least a portion of a range of the function is mapped to the three-dimensional space in accordance with the surface; and rendering a visualization of the varied copies of the three-dimensional feature to a display device presenting a user interface.