Function reselect

src/components/selections/select.js:1100–1282

(gd, mayEmitSelected, selectionTesters, searchTraces, dragOptions)

}

function reselect(gd, mayEmitSelected, selectionTesters, searchTraces, dragOptions) {
    var hadSearchTraces = !!searchTraces;
    var plotinfo, xRef, yRef;
    if(dragOptions) {
        plotinfo = dragOptions.plotinfo;
        xRef = dragOptions.xaxes[0]._id;
        yRef = dragOptions.yaxes[0]._id;
    }

    var allSelections = [];
    var allSearchTraces = [];

    // select layout.selection polygons
    var layoutPolygons = getLayoutPolygons(gd);

    // add draft outline polygons to layoutPolygons
    var fullLayout = gd._fullLayout;
    if(plotinfo) {
        var zoomLayer = fullLayout._zoomlayer;
        var mode = fullLayout.dragmode;
        var isDrawMode = drawMode(mode);
        var isSelectMode = selectMode(mode);
        if(isDrawMode || isSelectMode) {
            var xaxis = getFromId(gd, xRef, 'x');
            var yaxis = getFromId(gd, yRef, 'y');
            if(xaxis && yaxis) {
                var outlines = zoomLayer.selectAll('.select-outline-' + plotinfo.id);
                if(outlines && gd._fullLayout._outlining) {
                    if(outlines.length) {
                        var e = outlines[0][0]; // pick first
                        var d = e.getAttribute('d');
                        var outlinePolys = readPaths(d, gd, plotinfo);

                        var draftPolygons = [];
                        for(var u = 0; u < outlinePolys.length; u++) {
                            var p = outlinePolys[u];
                            var polygon = [];
                            for(var t = 0; t < p.length; t++) {
                                polygon.push([
                                    convert(xaxis, p[t][1]),
                                    convert(yaxis, p[t][2])
                                ]);
                            }

                            polygon.xref = xRef;
                            polygon.yref = yRef;
                            polygon.subtract = getSubtract(polygon, draftPolygons);

                            draftPolygons.push(polygon);
                        }

                        layoutPolygons = layoutPolygons.concat(draftPolygons);
                    }
                }
            }
        }
    }