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index.html
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<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>Node Flow Demo</title>
<link rel="shortcut icon" href="#" />
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Source+Code+Pro:ital,wght@0,200..900;1,200..900&display=swap"
rel="stylesheet">
<style>
* {
margin: 0;
padding: 0;
}
html,
body {
width: 100%;
height: 100%;
}
canvas {
width: 100%;
height: 100%;
display: block;
}
</style>
<script src="./dist/web/NodeFlow.js"></script>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
const canvas = document.getElementById("canvas");
NodeFlowTheme.FontFamily = "Source Code Pro";
const node3 = new FlowNode({
title: "Node 3",
position: { x: 850, y: 150 },
inputs: [
{ name: "test input 1", type: "int" }
],
outputs: [
{ name: "float", type: "float32" }
],
widgets: [
{
type: "slider",
config: {
min: 0,
max: 5,
value: 2.5,
snapIncrement: .25
}
}
]
});
const graph = new NodeFlowGraph(canvas, {
nodes: {
publishers: {
"example": {
name: "Example",
description: "Bunch of example nodes",
version: "v1.0.0",
nodes: {
"empty": {
title: "Empty Node",
canEdit: true,
},
"widgets/slider": {
title: "Slider Node",
widgets: [
{
type: "slider",
config: {
value: 0.5,
}
}
],
outputs: [
{
name: "out",
type: "float32"
}
]
},
"widgets/color": {
title: "Color Node",
widgets: [
{
type: "color",
config: {
}
}
],
outputs: [
{
name: "out",
type: "color"
}
]
},
"widgets/text": {
title: "Text Node",
widgets: [
{
type: "text",
config: {
value: "Arbitrary Text"
}
}
],
outputs: [
{
name: "out",
type: "color"
}
]
}
}
},
},
},
notes: [
{
text: `
# Notes
This is an example of a *note* written in **markdown**.
You can place notes around your graph to help explain your graph to other users.
## Editting
*Right-click* on this note and select "Edit Note" to put your text here!
## Support
This is a minimal implementation with graph-specific functionality. Currently implemented features are:
* H1, H2, and H3
* Bold and Italic
* Unordered Lists
* Code blocks
`,
position: {
x: 2300,
y: 20
},
locked: true,
},
{
position: {
x: 20,
y: 20
},
locked: true,
text: `
# Node Flow
Node Flow is a javascript library that enables developers to build node based tools similar to Unreal Blueprints or Blender Nodes.
## Example
Scattered across this graph contains code snippets on how to accomplish different things within the library.
\`\`\`
// Create a canvas to render our graph to
var canvas = document.createElement("canvas");
// Create our Node Flow Graph
var graph = new NodeFlowGraph(canvas)
\`\`\`
`
},
]
});
graph.addNote(new FlowNote({
position: { x: 800, y: 20 },
locked: true,
text: `
## Inputs and Outputs
Create a Add node that takes two numbers and outputs a single number
\`\`\`
var node = new FlowNode({
title: "Add",
inputs: [
{ name: "a", type: "float32" },
{ name: "b", type: "float32" }
],
outputs: [
{ name: "sum", type: "float32" }
],
});
graph.addNode(node);
\`\`\`
You can also add additional inputs and outputs to the node after it's been created
\`\`\`
node.addInput({ name: "c", type: "float32" })
node.addOutput({ name: "sum", type: "float32" })
\`\`\`
` }));
var sumNode = new FlowNode({
position: {
x: 850,
y: 600
},
title: "Add",
inputs: [
{ name: "a", type: "float32" },
{ name: "b", type: "float32" }
],
outputs: [
{ name: "sum", type: "float32" }
],
});
var aNode = new FlowNode({
position: {
x: 550,
y: 500
},
title: "Number",
outputs: [
{ name: "value", type: "float32" }
],
widgets: [
{
type: "number",
config: { value: 1 }
}
]
});
var bNode = new FlowNode({
position: {
x: 550,
y: 650
},
title: "Number",
outputs: [
{ name: "value", type: "float32" }
],
widgets: [
{
type: "number",
config: { value: 2 }
},
{
type: "image",
config: {
image: "https://i.imgur.com/qRZgWC0.jpeg"
}
}
]
})
graph.addNode(sumNode)
graph.addNode(aNode)
graph.addNode(bNode)
graph.connectNodes(aNode, 0, sumNode, 0)
graph.connectNodes(bNode, 0, sumNode, 1)
</script>
</body>
</html>