...about the web pageYou can enter pick mode by selecting "Pick" in the Mode selector. Then place a pick on the image by clicking with the left mouse button. The "Execution" indicator turns green when Data Explorer is executing. After you've picked, the visualization will show the present value of the perpetual stream of cash flows representing the salary for the endowed chair. In other words, it shows how much the Data Explorer group will have to invest today in order to pay for the chair.
...about Pick modeWhen you place a pick on an image rendered by Data Explorer, you're identifying a location on (2d or 3d) object. Data Explorer automatically translates the screen's x,y pick location into an x,y or x,y,z location in the object's coordinate space. Then the position on the object is used to lookup the data value from that point on the object.