Public preview: In CDF, the Full diagram parsing option provides access to advanced parsing features across four tabs: Tag detection, Symbols, Merge, and Connections.Only the first page is parsed. If your multi-page PDF contains critical information on subsequent pages, consider splitting the file before parsing.
Core concepts
Understanding these foundational concepts helps you work effectively with diagram parsing:| Concept | Definition |
|---|---|
| Connection | A visual relationship between symbols, represented by lines or pipes in the diagram. Connections map how assets interact in your operations. |
| Diagram | A single page of a parsed file containing all detected symbols and their connections. Each diagram is created using a specific library. |
| Geometry | One of the many possible visual compositions of a symbol. Each geometry is defined by SVG paths that help the algorithm recognize different visual styles. |
| Instance | A detected occurrence of a symbol in the diagram. A single symbol can identify multiple instances based on the number of matching vectors found during the parsing process. |
| Library | A CDF project-specific collection of symbols used to detect objects in engineering diagrams. You must select a library before running a parsing job. |
| Merge | The process of linking detected tags and symbols that represent the same physical entity in the knowledge graph. |
| Symbol | A blueprint that defines how to detect a particular type of equipment, such as a valve, instrument, or pipe. Each symbol contains one or more geometries. |
| Tag | A text annotation detected in the diagram that identifies an asset or file reference. Tags can be linked to existing resources in CDF. |
| Template | A read-only set of symbols available by default in every CDF project. Templates provide a starting point for diagram parsing without requiring custom symbol creation. |
For Full diagram parsing (public preview), the following list clarifies terminology and deletion behavior.
- A symbol in the library is the reusable definition. Each detection on a diagram is a matched instance you verify on the Symbols tab.
- When Merge refers to entities, it means those diagram items as a single unit.
- Deleting a library or symbol removes related detections across every diagram file the library is used on. Confirmation dialogs summarize the impact before you confirm deletion.
- For deletion workflows, see Manage symbol libraries.