3dmol/src/SurfaceWorker.js

JavaScript/TypeScript molecular visualization library

//Hackish way to create webworker (independent of $3Dmol namespace) within minified file
//We need to convert actual javascript into a string, not typescript, so for the time being
//this will remain a JS file
$3Dmol.workerString = function(){

    self.onmessage = function(oEvent) {
        var obj = oEvent.data;
        var type = obj.type;
        if (type < 0) // sending atom data, initialize
        {
            self.atomData = obj.atoms;
            self.volume = obj.volume;
            self.ps = new ProteinSurface();  // jshint ignore:line
        } else {
            var ps = self.ps;
            ps.initparm(obj.expandedExtent, (type == 1) ? false : true, self.volume);
            ps.fillvoxels(self.atomData, obj.extendedAtoms);
            ps.buildboundary();
            if (type === 4 || type === 2) {
                ps.fastdistancemap();
                ps.boundingatom(false);
                ps.fillvoxelswaals(self.atomData, obj.extendedAtoms);    
            }        
            ps.marchingcube(type);  // jshint ignore:line
            var VandF = ps.getFacesAndVertices(obj.atomsToShow);
            self.postMessage(VandF);
        }
    };
    
}.toString().replace(/(^.*?\{|\}$)/g, "");

// NOTE: variable replacement is simplified
// (See: http://stackoverflow.com/questions/1661197/what-characters-are-valid-for-javascript-variable-names)
$3Dmol.workerString += ";\nfunction _classCallCheck() {};"; //hack for babel
$3Dmol.workerString += ";\n"+$3Dmol.Vector3.toString();
$3Dmol.workerString += ";\n"+$3Dmol.MarchingCubeInitializer.toString()+";\n\n";
$3Dmol.workerString += ";\n"+$3Dmol.PointGrid.toString()+";\n";
$3Dmol.workerString += ";\nvar ProteinSurface = "+$3Dmol.ProteinSurface.toString()+";\n";
//console.log($3Dmol.workerString);
$3Dmol.SurfaceWorker = window.URL ? window.URL.createObjectURL(new Blob([$3Dmol.workerString],{type: 'text/javascript'})) : undefined;