Component attributes

The attribute table allows you to examine and probe attributes for a component. To do this, pull up a component's popup menu (right-click or control-click it), and choose Show Attributes. We might, for example, choose to view the attributes for the x input of the Beginner's Tutorial's XOR circuit.

After choosing Show Attributes, that pin's attributes will appear in the attribute table, and in the canvas Logisim will draw a very pale teal oval around the component to indicate whose attributes we are now viewing. Among other things, the pin's attributes say that the pin is facing east, that it is not an output pin, and that its label is "x."
Incidentally, besides using its popup menu, you can also view a component's attributes by poking it () or selecting it ().

Each component type has a different set of attributes; to learn what they mean, go to the relevant documentation in the Tool Reference.

You can change most attributes of components in the circuit through editing them in the attribute table. For example, suppose we decide that we'd rather that the label x appear on the other side of the pin. To accomplish this, we choose East from the Label Location attribute.

Not all component attributes are editable, though. One example of this is the AND gate's Gate Size attribute. You can change the value of this attribute for the AND gate tool, but you cannot change the value for an AND gate that has already been created.

Next: Tool attributes.