Magnify Tool

// Init cornerstone tools
cornerstoneTools.init();

// Enable any elements, and display images
// ...

// Add our tool, and set it's mode
const MagnifyTool = cornerstoneTools.MagnifyTool;

cornerstoneTools.addTool(MagnifyTool)
cornerstoneTools.setToolActive('Magnify', { mouseButtonMask: 1 })