gradientVisualizer/baseScript.html at main · einhornmarie/gradientVisualizer · GitHub

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<!doctype html>
<html>
<head>
    <title>Dynamic CindyJS Example</title>
    <script src="https://cindyjs.org/dist/latest/Cindy.js"></script>
    <style>
        .content {
            display: flex;
            align-items: flex-start;
        }
        .input-section {
            margin-left: 20px;
            display: flex;
            flex-direction: column;
        }
        #point-input {
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
<div class="content">
    <div id="cindy-container" style="width: 800px; height: 600px"></div>
    <div class="input-section">
        <!-- Textarea with initial points as editable example -->
        <textarea id="point-input" rows="10" cols="33">
[
    {"pos": [0, 0, 10]},
    {"pos": [10, 0, 10]},
    {"pos": [10, 10, 10]},
    {"pos": [0, 10, 10]},
    {"pos": [5, 5, 10]}
]
        </textarea>
            <button onclick="loadPoints()" id="load-points">Load Points</button>
            <button onClick="addPoints()" id="add-points">Add Points</button>
    </div>
</div>
<script>

    let instance = null;

    let initialPoints = [
        { pos: [0, 0, 10]},
        { pos: [10, 0, 10]},
        { pos: [10, 10, 10]},
        { pos: [0, 10, 10]},
        { pos: [5, 5, 10]},
    ];

    function setupCindy(points) {
        let geometry = convertPointsToGeometry(points);

        if (instance) {
            instance.shutdown(); // Shutdown the existing instance before reinitializing
        }
        instance = CindyJS({
            canvasname: "cindy-container",
            geometry: geometry,
        });


    }

    function convertPointsToGeometry(pointsArray) {
        let id = 0;
        let cleanPointArray = [];
        let points = [];
        let joins = [];
        let joinCounter = 1;

        pointsArray.forEach((point) => {
            if(!containsPointPosition(point, points)){
                cleanPointArray.push(point);
                points.push({
                    type: "Free",
                    name: id++,
                    pos: point.pos,
                });
            }
        });
        initialPoints = cleanPointArray;
        radiusForCircle = getMaxDistance(points) + 2;
        //drawcircle((0,0),1); //draws a circle with radius 1 and center (0,0)


        for (let i = 0; i < points.length; i++) {
            for (let j = i + 1; j < points.length; j++) {
                let joinName = "j" + joinCounter++;
                joins.push({
                    type: "Join",
                    name: joinName,
                    args: [points[i].name, points[j].name],
                });
            }
        }
        return points.concat(joins);
    }
    function getMaxDistance (points){
        let totalDistance = 0;
        points.forEach((point) =>{
            let distance = 0;
            for(let i = 0; i < 3; i++){
                distance += Math.pow(point.pos[i],2);
            }
            distance = Math.sqrt(distance);
            if(distance > totalDistance){
                totalDistance = distance;
            }
        })
        return totalDistance;
    }
    function containsPointPosition(point, points){
        let  isContaining = false;
        points.some((p)=>{
            if(p.pos[0]=== point.pos[0] && p.pos[1] === point.pos[1] && p.pos[2] === point.pos[2] ){
                isContaining = true;
                return true;
            }
        })
        return isContaining;
    }

    function loadPoints() {
        {
            const inputValue =
                document.getElementById("point-input").value;
            try {
                initialPoints = JSON.parse(inputValue);
                setupCindy(initialPoints);
            } catch (e) {
                alert("Invalid JSON input");
            }
        }
    }

    function addPoints() {
        const inputValue =
            document.getElementById("point-input").value;
        try {
            const pointsData = JSON.parse(inputValue);
            pointsData.forEach(point => {
                initialPoints.push(point);
            })
            setupCindy(initialPoints);
        } catch (e) {
            alert("Invalid JSON input");
        }
    }

    // Initialize with example points on page load
    setupCindy(initialPoints);
</script>
</body>
</html>