package.src.traces.scattergl.scene_update.js Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of plotly.js Show documentation
The open source javascript graphing library that powers plotly
The newest version!
'use strict';

var Lib = require('../../lib');

// make sure scene exists on subplot, return it
module.exports = function sceneUpdate(gd, subplot) {
    var scene = subplot._scene;

    var resetOpts = {
        // number of traces in subplot, since scene:subplot -> 1:1
        count: 0,
        // whether scene requires init hook in plot call (dirty plot call)
        dirty: true,
        // last used options
        lineOptions: [],
        fillOptions: [],
        markerOptions: [],
        markerSelectedOptions: [],
        markerUnselectedOptions: [],
        errorXOptions: [],
        errorYOptions: [],
        textOptions: [],
        textSelectedOptions: [],
        textUnselectedOptions: [],
        // selection batches
        selectBatch: [],
        unselectBatch: []
    };

    // regl- component stubs, initialized in dirty plot call
    var initOpts = {
        fill2d: false,
        scatter2d: false,
        error2d: false,
        line2d: false,
        glText: false,
        select2d: false
    };

    if(!subplot._scene) {
        scene = subplot._scene = {};

        scene.init = function init() {
            Lib.extendFlat(scene, initOpts, resetOpts);
        };

        scene.init();

        // apply new option to all regl components (used on drag)
        scene.update = function update(opt) {
            var opts = Lib.repeat(opt, scene.count);

            if(scene.fill2d) scene.fill2d.update(opts);
            if(scene.scatter2d) scene.scatter2d.update(opts);
            if(scene.line2d) scene.line2d.update(opts);
            if(scene.error2d) scene.error2d.update(opts.concat(opts));
            if(scene.select2d) scene.select2d.update(opts);
            if(scene.glText) {
                for(var i = 0; i < scene.count; i++) {
                    scene.glText[i].update(opt);
                }
            }
        };

        // draw traces in proper order
        scene.draw = function draw() {
            var count = scene.count;
            var fill2d = scene.fill2d;
            var error2d = scene.error2d;
            var line2d = scene.line2d;
            var scatter2d = scene.scatter2d;
            var glText = scene.glText;
            var select2d = scene.select2d;
            var selectBatch = scene.selectBatch;
            var unselectBatch = scene.unselectBatch;

            for(var i = 0; i < count; i++) {
                if(fill2d && scene.fillOrder[i]) {
                    fill2d.draw(scene.fillOrder[i]);
                }
                if(line2d && scene.lineOptions[i]) {
                    line2d.draw(i);
                }
                if(error2d) {
                    if(scene.errorXOptions[i]) error2d.draw(i);
                    if(scene.errorYOptions[i]) error2d.draw(i + count);
                }
                if(scatter2d && scene.markerOptions[i]) {
                    if(unselectBatch[i].length) {
                        var arg = Lib.repeat([], scene.count);
                        arg[i] = unselectBatch[i];
                        scatter2d.draw(arg);
                    } else if(!selectBatch[i].length) {
                        scatter2d.draw(i);
                    }
                }
                if(glText[i] && scene.textOptions[i]) {
                    glText[i].render();
                }
            }

            if(select2d) {
                select2d.draw(selectBatch);
            }

            scene.dirty = false;
        };

        // remove scene resources
        scene.destroy = function destroy() {
            if(scene.fill2d && scene.fill2d.destroy) scene.fill2d.destroy();
            if(scene.scatter2d && scene.scatter2d.destroy) scene.scatter2d.destroy();
            if(scene.error2d && scene.error2d.destroy) scene.error2d.destroy();
            if(scene.line2d && scene.line2d.destroy) scene.line2d.destroy();
            if(scene.select2d && scene.select2d.destroy) scene.select2d.destroy();
            if(scene.glText) {
                scene.glText.forEach(function(text) {
                    if(text.destroy) text.destroy();
                });
            }

            scene.lineOptions = null;
            scene.fillOptions = null;
            scene.markerOptions = null;
            scene.markerSelectedOptions = null;
            scene.markerUnselectedOptions = null;
            scene.errorXOptions = null;
            scene.errorYOptions = null;
            scene.textOptions = null;
            scene.textSelectedOptions = null;
            scene.textUnselectedOptions = null;

            scene.selectBatch = null;
            scene.unselectBatch = null;

            // we can't just delete _scene, because `destroy` is called in the
            // middle of supplyDefaults, before relinkPrivateKeys which will put it back.
            subplot._scene = null;
        };
    }

    // in case if we have scene from the last calc - reset data
    if(!scene.dirty) {
        Lib.extendFlat(scene, resetOpts);
    }

    return scene;
};