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title: PDBLoader category: Addons layout: docs

PDBLoader

A loader for the PDB format.

The Protein Data Bank file format is a textual file describing the three-dimensional structures of molecules.

Code Example

const loader = new PDBLoader();
const pdb = await loader.loadAsync( 'models/pdb/ethanol.pdb' );
const geometryAtoms = pdb.geometryAtoms;
const geometryBonds = pdb.geometryBonds;
const json = pdb.json;

Import

PDBLoader is an addon, and must be imported explicitly, see Installation#Addons.

import { PDBLoader } from 'three/addons/loaders/PDBLoader.js';

Constructor

new PDBLoader( manager : LoadingManager )

Constructs a new PDB loader.

manager | The loading manager.
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Methods

.load( url : string, onLoad : function, onProgress : onProgressCallback, onError : onErrorCallback )

Starts loading from the given URL and passes the loaded PDB asset to the onLoad() callback.

url | The path/URL of the file to be loaded. This can also be a data URI.
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onLoad | Executed when the loading process has been finished.
onProgress | Executed while the loading is in progress.
onError | Executed when errors occur.

Overrides: Loader#load

.parse( text : string ) : Object

Parses the given PDB data and returns an object holding the atoms and bond geometries as well as the raw atom data as JSON.

text | The raw PDB data as a string.
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Overrides: Loader#parse

Returns: The result object.

Source

examples/jsm/loaders/PDBLoader.js