Function newPointNumTester

src/components/selections/select.js:592–609

(pointSelectionDef)

 * Constructs a new point number tester.
 */
function newPointNumTester(pointSelectionDef) {
    return {
        xmin: 0,
        xmax: 0,
        ymin: 0,
        ymax: 0,
        pts: [],
        contains: function(pt, omitFirstEdge, pointNumber, searchInfo) {
            var idxWantedTrace = pointSelectionDef.searchInfo.cd[0].trace.index;
            var idxActualTrace = searchInfo.cd[0].trace.index;
            return idxActualTrace === idxWantedTrace &&
              pointNumber === pointSelectionDef.pointNumber;
        },
        isRect: false,
        degenerate: false,
        subtract: !!pointSelectionDef.subtract
    };
}

/**
 * Wraps multiple selection testers.