A concept map is a component with the MIME type application/x-conceptmap. A concept map contains the following:
An IMS meta-data record as described in [imsmetadata] (as all database components have).
A bounding box for the whole map, which defines the coordinate system in which the rest of the coordinates are given.
A filter to use as default sorting of the content of neurons. A filter given in a neuron (see Neurons) will override this.
A list of neurons, referred to by their identity. For each neuron, a bounding box is given for the body, as well as a number of points constituting the line connecting the body with the axons. A title is given to each neuron, as well as a list of data tags that are to be displayed together with their values. Each neuron may also have a so called detailed map, which is the map where you land if you surf this neuron.
For each neuron listed, a list of axons that one wants in the map. Each given axon is given a list of points, where the last is the tip of the axon head. It is supposed that all axons start at the same point, although this is not enforced.