Function doDrag

test/jasmine/tests/cartesian_interact_test.js:320–325

(subplot, directions, dx, dy, nsteps)

    }

    function doDrag(subplot, directions, dx, dy, nsteps) {
        return function() {
            var dragger = getDragger(subplot, directions);
            return drag({node: dragger, dpos: [dx, dy], nsteps: nsteps});
        };
    }

    function doDblClick(subplot, directions) {
        return function() {