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Specifying predefined schematic attributes to manage node-on-link and sublink schematic features

  • Specifying reference links for node-on-link and sublink schematic features
  • Specifying node-on-link positions on their reference links
  • Specifying origin and extremity node for sublinks

Node-on-links and sublinks are not automatically managed by the predefined schematic builders. There are specific configurations to operate on the node-on-link and sublink schematic feature classes that implement them before you generate diagrams containing such types of schematic features.

Specifying reference links for node-on-link and sublink schematic features

The ReferenceLink predefined attribute needs to be configured on each node-on-link and sublink schematic feature class that implements node-on-links and sublinks. This attribute is expected to provide the identifier of the schematic link to which any node-on-link or sublink is related.

Specifying node-on-link positions on their reference links

The position of any node-on-link on its reference link may be specified either as an absolute position or a relative position. The AbsolutePosition and RelativePosition predefined attributes are the attributes to configure to specify this location. Only one of them must be specified on the node-on-link schematic feature classes that implement node-on-links.

  • If the AbsolutePosition predefined attribute is the one configured on a node-on-link schematic feature class, it is expected to provide the distance between the node-on-link and its reference link's origin node (positive value) or between the node-on-link and its reference link's extremity node (negative value). This distance must be expressed in the coordinate system specified for the link schematic feature class that implements the reference links.
  • The RelativePosition predefined attribute must be used to specify node-on-link positions relative to the reference link. These attribute values are between 0. and 1. representing the node-on-link position as a percentage of the reference link length.

Specifying origin and extremity node for sublinks

The OriginNode and ExtremityNode predefined attributes explained in the Specifying predefined schematic attributes to manage the schematic topology topic must also be used to configure the origin and extremity nodes or node-on-links for sublink schematic features. These attributes are mandatory for sublink schematic feature classes.

Temas relacionados

  • Predefined schematic attributes

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