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How to run a graph with my own node in Node JS and in the browser? #480

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LeMoussel opened this issue May 30, 2024 · 0 comments
Open

How to run a graph with my own node in Node JS and in the browser? #480

LeMoussel opened this issue May 30, 2024 · 0 comments

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@LeMoussel
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I want to run a graph with my own nodes in NodeJS.
How can I set a node that can run in NodeJS and in the browser?

Specific node: special.js

(function (global) {
    var LiteGraph = global.LiteGraph;

    class SpecialConstNumber {
        constructor() {
            this.title = "Const Special";
            this.desc = "Constant special";
            this.color = '#222234'
            this.bgcolor = '#333257'
            this.addOutput("value", "special");
            this.addProperty("value", 1.0);
        }

        onExecute() {
            this.setOutputData(0, this.properties["value"]);
        }

        onDrawBackground(ctx) {
            //show the current value
            this.outputs[0].label = this.properties["value"];
        }

        getTitle() {
            if (this.flags.collapsed) {
                return this.properties.value;
            }
            return this.title;
        };

        setValue(v) {
            this.setProperty("value", v);
        }
    }
    LiteGraph.registerNodeType("special/const_number", SpecialConstNumber);
})(this);

in Browser

<!DOCTYPE html>
<html lang="fr">

<head>
    <meta charset="UTF-8">
    <title>GraphJS UI</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" type="text/css" href="./style.css" />

    <link rel="stylesheet" type="text/css" href="./lib/litegraph.css" />
    <script type="text/javascript" src="./lib/litegraph.js"></script>

    <script type="text/javascript" src="./scripts/nodes/special.js"></script>

with Node.js
How can I import special.js ?

import { LGraph, LiteGraph } from 'litegraph.js';
// Import `special.js` ??????

let graphData = JSON.parse(readFileSync("new.lgraph", "utf8"));

const graph = new LGraph(graphData);
graph.runStep() // ERROR Dont'know 'SpecialConstNumber' node
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@LeMoussel