Slab / Crop example app

This example shows how to crop and slab views, and update the linked viewports. It also shows option to pass on mouse events to registered mouse handler or intercept them using custom mouse handlers. The function call Fovia.UI.HTMLViewport3D.setOverrideTouchAdaptor usage is included in the app for this.

View the source /foviaserver/public/apps/slab/slab.js To run the example, click on a local copy of http://localhost:8088/apps/slab/