@babylonjs/viewer/dist/chunks/flowGraphTransformCoordinatesSystemBlock-CPJvLgWf.esm.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import { F as FlowGraphBlock } from './KHR_interactivity-Bmb38TjL.esm.js';
import { R as RichTypeAny, j as RichTypeVector3 } from './declarationMapper-rcGCdcDP.esm.js';
import { aS as TmpVectors, V as Vector3, R as RegisterClass } from './index-FzOfPXLV.esm.js';
import './objectModelMapping-CJnQ6at_.esm.js';

/**
 * This blocks transforms a vector from one coordinate system to another.
 */
class FlowGraphTransformCoordinatesSystemBlock extends FlowGraphBlock {
    /**
     * Creates a new FlowGraphCoordinateTransformBlock
     * @param config optional configuration for this block
     */
    constructor(config) {
        super(config);
        this.sourceSystem = this.registerDataInput("sourceSystem", RichTypeAny);
        this.destinationSystem = this.registerDataInput("destinationSystem", RichTypeAny);
        this.inputCoordinates = this.registerDataInput("inputCoordinates", RichTypeVector3);
        this.outputCoordinates = this.registerDataOutput("outputCoordinates", RichTypeVector3);
    }
    _updateOutputs(_context) {
        const sourceSystemValue = this.sourceSystem.getValue(_context);
        const destinationSystemValue = this.destinationSystem.getValue(_context);
        const inputCoordinatesValue = this.inputCoordinates.getValue(_context);
        // takes coordinates from source space to world space
        const sourceWorld = sourceSystemValue.getWorldMatrix();
        // takes coordinates from destination space to world space
        const destinationWorld = destinationSystemValue.getWorldMatrix();
        const destinationWorldInverse = TmpVectors.Matrix[0].copyFrom(destinationWorld);
        // takes coordinates from world space to destination space
        destinationWorldInverse.invert();
        const sourceToDestination = TmpVectors.Matrix[1];
        // takes coordinates from source space to world space to destination space
        destinationWorldInverse.multiplyToRef(sourceWorld, sourceToDestination);
        const outputCoordinatesValue = this.outputCoordinates.getValue(_context);
        Vector3.TransformCoordinatesToRef(inputCoordinatesValue, sourceToDestination, outputCoordinatesValue);
    }
    /**
     * Gets the class name of this block
     * @returns the class name
     */
    getClassName() {
        return "FlowGraphTransformCoordinatesSystemBlock" /* FlowGraphBlockNames.TransformCoordinatesSystem */;
    }
}
RegisterClass("FlowGraphTransformCoordinatesSystemBlock" /* FlowGraphBlockNames.TransformCoordinatesSystem */, FlowGraphTransformCoordinatesSystemBlock);

export { FlowGraphTransformCoordinatesSystemBlock };
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