A node is a small data structure containing information that may be related to market information, trading intelligence, the operation of the system, or other concepts. They are visually represented by icons in the design space.
Structure of Nodes
Nodes may be chained together forming structures of nodes. In every structure of nodes there is a parent node with offsprings. That is, a structure of nodes is a data structure composed of any node and its offspring.
As a consequence, structures of nodes are hierarchical structures, and a logical representation of how the concepts embodied by each node relate to each other.
Nodes in structures of nodes are chained to each other by so-called parent-offspring relationships. These relationships are visually represented by orange dotted lines, which may turn yellow or blue depending on certain visualization properties that the user may control. When nodes are chained together they form structures of nodes.
The direction of the relationship is determined, in most cases, by the ability of a node to produce the offspring node. That is, the parent node is the one which, by software design, may produce the offspring node.
How to Detach and Attach Nodes
|In brief: To detach a node, click on the detach button on the node's menu. To attach a node, right-click it and drag it closer to the node you wish to attach it to. Release the right-click when the target node is highlighted.|
Nodes in the workspace may be unchained or detached from its parent, carrying all offspring with it. When a node is left unchained, it is no longer taken into account in the logic of the hierarchy, as it no longer belongs to it. When a node is chained back or reattached to the hierarchy, it goes back to being functional.
This feature is useful when testing different configurations, rules or parameters, as it allows to keep alternatives handy in the workspace.
Nodes may be attached only to potential parents. The system limits the way in which nodes may be attached, according to the logic of the information they contain.