@tokens-studio/graph-engine/dist/nodes/series/exponentialDecay.js

An execution engine to handle Token Studios generators and resolvers

import { Node } from '../../programmatic/node.js';
import { NumberSchema } from '../../schemas/index.js';
import { arrayOf } from '../../schemas/utils.js';
import { setToPrecision } from '../../utils/precision.js';
export default class NodeDefinition extends Node {
    static title = 'Exponential Decay';
    static type = 'studio.tokens.series.exponentialDecay';
    static description = 'Generates a sequence using exponential decay formula: P*e^(-kx)';
    constructor(props) {
        super(props);
        this.addInput('initialValue', {
            type: {
                ...NumberSchema,
                default: 100,
                description: 'Initial value (P)'
            }
        });
        this.addInput('length', {
            type: {
                ...NumberSchema,
                default: 5,
                minimum: 1,
                description: 'Number of values to generate'
            }
        });
        this.addInput('decayRate', {
            type: {
                ...NumberSchema,
                default: 0.5,
                minimum: 0,
                description: 'Decay rate constant (k)'
            }
        });
        this.addInput('precision', {
            type: {
                ...NumberSchema,
                default: 2,
                minimum: 0
            }
        });
        this.addOutput('values', {
            type: arrayOf(NumberSchema)
        });
    }
    execute() {
        const { initialValue, length, decayRate, precision } = this.getAllInputs();
        const values = Array.from({ length }, (_, i) => setToPrecision(initialValue * Math.exp(-decayRate * i), precision));
        this.outputs.values.set(values);
    }
}
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