Under each material node, you can create new material groups of the same type/category but with different properties (color, texture, or electric and magnetic constitutive [[parameters]]). These material groups are used to organize the CAD objects you draw in the project workspace or import from external model files.
[[Image:Info_icon.png|40px]] Click here for a general discussion of to learn more about '''[[Defining Materials in EMDefining_Materials_in_EM.Cube#Defining_a_New_Material_Group | Defining a New Material Group]]'''.
Once a new material node has been created on the navigation tree, it becomes the "Active" material group of the project workspace, which is always listed in bold letters. When you create draw a new geometrical CAD object such as a Box or a Sphere, it is inserted under the currently active material type. There is only one material group that is active at any time. Any material can be made active by right clicking on its name in the Navigation Tree and selecting the '''Activate''' item of the contextual menu. It is recommended that you first create material groups, and then draw new objects under the active material group. However, if you start a new EM.Tempo project from scratch, and start drawing a new object without having previously defined any material groups, a new default PEC group is created and added to the navigation tree to hold your new CAD object.
[[Image:Info_icon.png|40px]] Click here for a general discussion of '''[[Defining Materials in EM.Cube]]'''.
Â
===Defining a New Material Group===
Â
To define a new material group, follow these steps:
Â
* Right click on the name of the desired material in the navigation tree and select '''Insert New Material...''' from the contextual menu. A material dialog opens up.
* Specify a '''Label''' and '''Color''' (and optional Texture) for the material group being created.
* Either accept the default values of the available material [[parameters]] or enter new values.
* Click the '''OK''' button of the dialog to accept the changes and close it.
Â
Once a new material node has been created on the navigation tree, it becomes the "Active" material group of the project workspace, which is always listed in bold letters. Then you can start drawing new objects under that node. Any material can be made active by right clicking on its name in the Navigation Tree and selecting the '''Activate''' item of the contextual menu.
===Moving Objects among Material Groups===