# Model File

Reads and writes a physical file containing a PRC model file; and creates and accesses model file entities.

The `A3DAsmModelFile`is the root entity of the PRC data. It is the starting point for parsing a PRC file. It is also one of the arguments used to create a 3D annotation within a PDF document.

Entity type is `kA3DTypeAsmModelFile`.

Parameters

> pModelFile: A reference to the model file, which is created by invoking `A3DAsmModelFileLoadFromFile`

> pData: A reference to the `A3DAsmModelFileData`structure in which the library stores the model file data

Returns

> `A3D_SUCCESS`on success, or an error code on failure

Topics

- Model tree helper

Structures

- `A3DAsmModelFileData`

Enumerations

- `A3DEModellerType`

Functions

- `A3DAsmModelFileGet()`
- `A3DAsmModelFileCreate()`
- `A3DAsmModelFileDelete()`
- `A3DAsmModelFileUnloadParts()`
- `A3DAsmModelFileGetUnit()`
- `A3DUnitGetFromValue()`
- `A3DUnitGetFromEnum()`

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