Important Factors
- Last UpdatedMar 14, 2024
- 3 minute read
Some of the important factors relating to the ShapeCatalogue Element are given below.
Elements
The details about shape catalogue elements and their cardinalities are as follows:
|
Element Name |
Cardinality |
Description |
|---|---|---|
|
Equipment |
0..* |
Equipment symbols |
|
PipingComponent |
0..* |
PipingComponent symbols |
|
Nozzle |
0..* |
Nozzle symbols |
|
ProcessInstrument |
0..* |
ProcessInstrument symbols |
|
InstrumentCompnent |
0..* |
|
|
Component |
0..* |
Component symbols |
|
PipeConnector |
0..* |
PipeConnectorSymbol |
|
SignalConnectorSymbol |
0..* |
SignalConnectorSymbol |
|
InsulationSymbol |
0..* |
|
|
PropertyBreak |
0..* |
|
|
Label |
0..* |
|
|
PipeFlowArrow |
0..* |
A Shape Catalogue Element will have the following attributes:
|
Attribute Name |
Required |
Description |
|---|---|---|
|
ID |
Y |
Unique ID used to represent a symbol in a file |
|
ComponentClass |
N |
This attribute is the RDL Designation field from the ISO 15926 RDL specification. The value of this field is converted to Camel Case with all spaces removed. |
|
ComponentName |
Y |
See ComponentName |
A Shape Catalogue Element has the following Nodes:
|
Node Name |
Cardinality |
Description |
|---|---|---|
|
Extent |
1 |
A minimum bounding geometry describing the minimum and maximum coordinates of the descendants of this element’s parent. |
|
Position |
1 |
This defines the place where an items origin is on a P&ID drawing. |
|
Line |
0..* |
A linear geometry defined by two points. |
|
Circle |
0..* |
A geometric primitive describing a circle. |
Example:
Attributes
Details of shape catalogue attributes are given below:
|
Attribute Name |
Required |
Description |
|---|---|---|
|
Name |
Y |
The name of the symbol catalogue, this is a string attribute. |
|
Version |
N |
The version of the symbol set. |
|
Units |
N |
The distance units that the symbols are defined in. This affects the size of the symbol with respect to the units defined by the Plant Information/UnitsOfMeasure/@Distance attribute. for example, if Units is different to the Plant Information default, then the symbol is scaled. |
|
Date |
N |
The date that the symbol library was created/modified. |
ComponentName
-
If present on a component that is inside a ShapeCatalogue element, then this is the unique id for the symbol within the file.
-
If present on a component that is not inside a ShapeCatalogue element, then this is the reference to the geometry of the components symbol. The component may have additional annotation defined within it. The symbol referenced may be scaled or rotated.
Scale
The scale element is used when symbols are drawn from a shape catalogue. The Scale element enables symbols to be rescaled when positioned in a drawing.
|
Attribute Name |
Required |
Description |
|---|---|---|
|
X |
Y |
X scale factor |
|
Y |
Y |
Y scale factor |
|
Z |
N |
Z scale factor |
Example:
Geometries (Axis And Reference)
All geometries in a P&ID file are accompanied by Axis and Reference elements. These define rotations around 3 dimensional axes that define how to map the coordinates defined for the item into the target environment. For most 2D drawing work the following values give the expected behaviour (for example, the coordinates are defined in the 2D drawing plane).
Example:
