set operation

Synopsis

• set(attribute, value)

Parameters

1. attribute—string
   Name of shape attribute to set.
2. value—{ bool | float | string }
   Value to assign to shape attribute. Note that not all shape attributes are writable.

Description

The set operation assigns a value to a shape attribute of the current shape. There are two kinds of shape attributes: builtin attributes such as material.color or scope.tx and generic attributes, which are declared as rule attributes (see Attributes).

Related

• material attribute
• pivot attribute
• scope attribute
• seedian attribute
• trim attribute

Examples

Builtin shape attributes

Enable horizontal trim planes Set x-translation of scope 0 Set the material color's red component to 0.5 Assign the built-in test texture to the colormap channel

set(trim.horizontal, true) set(scope.tx, 0) set(material.color.r, 0.5) set(material.colormap, "builtin:uvtest.png")

Generic shape attributes

Store floor index in a generic attribute, floorHeight. The attribute is then used to color the windows on every 3rd floor is pink. attr floorNumber = -1 const floorHeight = 4 Init--> extrude(30) comp(f) {side : Side } Side--> split(y) { ~floorHeight: Floor }* Floor--> set(floorNumber, split.index) split(x) { ~1 : Wall | {~3 : Tile }* | ~1 : Wall } Tile--> split(x) { 0.5 : Wall | ~1 : MidTile | 0.5 : Wall } MidTile--> split(y) { 0.5 : Wall | ~1 : Window | 0.5 : Wall } Window--> case floorNumber % 3 == 0: color(1.0, 0.0, 1.0) X else: X