Predefined schematic attributes

A number of schematic feature classes' predefined attributes are used by Schematics. These attributes have predefined names, allowing Schematics to automatically deal with them when they are configured.

Some predefined attributes are completely managed by Schematics by default and automatically stored in system fields in the schematic feature classes in the schematic dataset at the schematic feature creation; for example, spatial or topological attributes. Those attributes can be redefined if you want Schematics to behave in a different way than the default one. For example, for any node schematic feature associated with a GIS feature, the ROTATION field in the schematic feature class is populated by default with the same GIS feature's ROTATION field value at the generation. If you want this field to be populated by another value, you can configure the InitialRotation predefined attribute on the schematic feature class.

The table below lists all the predefined attributes that can be configured on schematic feature classes depending on their type:

Predefined attribute name	Schematic feature class Type	Description
AbsolutePosition	Node On Link	absolute position on the reference link
ContainerBottomMargin	Node	container margin at bottom
ContainerLeftMargin	Node	container margin at left
ContainerMargin	Node	constant container margin at right, left, top, and bottom
ContainerMarginSymbolsFlag	Node	indicates whether the margin includes the symbol size
ContainerMarginUnit	Node	container margin unit
ContainerRightMargin	Node	container margin at right
ContainerTopMargin	Node	container margin at top
EndFlag	Node	indicates whether it's an end node schematic feature
ExtremityNode	Link, Sub Link	extremity node or node on link identifier
ExtremityPortNumber	Link, Sub Link	port number on the extremity node or node on link symbol
FCN	Node, Node On Link, Link, Sub Link	name of the feature class or table that contains the GIS feature/object associated with the schematic feature
FDSN	Node, Node On Link, Link, Sub Link	name of the data source to connect the geodatabase that contains the GIS feature/object associated with the schematic feature
FOID	Node, Node On Link, Link, Sub Link	OBJECTID of the GIS feature/object associated with the schematic feature
InitialListPoints	Link	list of initial vertices
InitialXPosition	Node	initial x-coordinate
InitialYPosition	Node	initial y-coordinate
InitialRotation	Node	initial rotation angle in degrees
OriginNode	Link, Sub Link	origin node or node on link identifier
OriginPortNumber	Link, Sub Link	port number on the origin node or node on link symbol
PEN	Node, Node On Link, Link, SubLink	name of the parent schematic feature that is related to the schematic feature; for example, container name
PTN	Node, Node On Link, Link, Sub Link	name of the schematic feature class that implements the parent that is related to the schematic feature
ReferenceLink	Node On Link, Sub Link	reference link identifier
RelativePosition	Node On Link	relative position on the reference link
RootFlag	Node	indicates whether it's a root node schematic feature

The table below lists the type of values each predefined attribute is supposed to return and the system field to which this attribute is automatically related when such a field exists in the schematic feature class:

Predefined attribute name	Type of value	Related system field
AbsolutePosition	double (see Note 1)	INITIALPOSITION
ContainerBottomMargin	double	No field
ContainerLeftMargin	double	No field
ContainerMargin	double	No field
ContainerMarginSymbolsFlag	see Note 2	No field
ContainerMarginUnit	0, 1, or 2 (see Note 3)	No field
ContainerRightMargin	double	No field
ContainerTopMargin	double	No field
EndFlag	see Note 4	No field
ExtremityNode	string	TOTID
ExtremityPortNumber	integer	TOPORT
FCN	string	No field
FDSN	string	No field
FOID	string	No field
InitialListPoints	string	PROPERTYSET
InitialXPosition	double	INITIALX
InitialYPosition	double	INITIALX
InitialRotation	double	ROTATION
OriginNode	string	FROMTID
OriginPortNumber	integer	FROMPORT
PEN	string	No field
PTN	string	No field
ReferenceLink	string	REFERENCELINK
RelativePosition	double (see Note 5)	INITIALPOSITION
RootFlag	see Note 4	No field

Note:

1. Distance in the schematic feature class coordinate system from the origin node for a positive value, or from the extremity node for a negative value.
2. The attribute value specifies whether the margin includes the size of the related node symbols:
   • 0: the margin size doesn't include the symbol size—that is, the margin is the distance between the container boundary and the nearest node center.
   • Any other value: the margin size includes the symbol size—that is, the margin is the distance between the container boundary and the nearest node's boundary symbol.
3. The values specified through the ContainerBottomMargin, ContainerTopMargin, ContainerLeftMargin, and ContainerRightMargin attributes must be interpreted as the following:
   • Pixels when ContainerMarginUnit = 0
   • Schematic feature class coordinate system units when ContainerMarginUnit = 1
   • A percentage of the container size when ContainerMarginUnit = 2
4. The attribute values determine whether the schematic features must be considered as root/end nodes:
   • NULL, EMPTY, 0: this is not a root/end node.
   • -1 or any other value: this is a root/end node.
5. Value between 0. and 1., representing the percentage of the reference link length.

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