xeokit DTX Importer and Exporter

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Import and export models as xeokit's native binary DTX format

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The xeokit SDK allows us to import 3D models from DTX, which is xeokit's native runtime asset delivery format for model representations and semantics.

The DTX format compresses large double-precision model representations and semantic data to a compact payload that loads quickly over the Web into a xeokit viewer running in the browser.

To import a DTX model into xeokit, use the loadDTX function, which will load the file into a SceneModel and a DataModel.

To export a DTX model from xeokit, use the saveDTX function, which will save a SceneModel and a DataModel to DTX file data.

Installation

npm install @xeokit/dtx
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Usage

In the example below, we'll use loadDTX to import a DTX file into a DataModel and a SceneModel. The @xeokit/core!SDKError class is used to handle errors that may occur during the process:

import {Data} from "@xeokit/data";
import {Scene} from "@xeokit/scene";
import {loadDTX, saveDTX} from "@xeokit/dtx";

const data = new Data();
const scene = new Scene();

const dataModel = data.createModel({
    id: "myModel
});

const sceneModel = scene.createModel({
    id: "myModel
});

if (dataModel instanceof SDKError) {
     console.error(dataModel.message);
} else if (sceneModel instanceof SDKError) {
     console.error(dataModel.message);
} else {
     fetch("myModel.dtx").then(response => {

        response.arrayBuffer().then(data => {

             loadDTX({ data, dataModel, sceneModel });

             dataModel.build();
             sceneModel.build();
         });
     });
});
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Using @xeokit/dtx!saveDTX to export the DataModel and SceneModel to DTX file data in an ArrayBuffer:

const arrayBuffer = saveDTX({
    dataModel,
    sceneModel
});
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