2 Materials

Materials in Radiant are defined by a Radiant.Material object. Once a material has been instantiated, the elemental composition of the material can be defined with its density. For example, the following code would be use to define water:

water = Material()
water.set_density(1.0)           # Density of 1 g/cm³
water.add_element("H",0.1111)    # Hydrogen with mass weight of 11.11 %
water.add_element("O",0.8889)    # Oxygen with mass weight of 88.89 %

and for a monoelemental element, like aluminium, the following can be used:

al = Material()
al.add_element("Al")             # Aluminium with mass weight of 100 %

Note that the absence of explicit mass weight means the material is monoelemental and the absence of explicit density correspond to the material density at 20°C. The material information can be printed using println() function. For example, for the object water created before, the function println(water) generates the following output:

Material:
   ID:                           53
   Density (g/cm³):              1.0
   Elements in the compound:     ["h", "o"]
   Weight fractions:             [0.1111, 0.8889]
   State of matter:              liquid

where the ID field correspond to an internal ID to uniquely identify the object. An empty field can take the value missing if the data is required for calculations, and simply nothing if not.