====== Rod as a Digitizing Pointer ====== Almost any rigid object with at least 3 non colinear markers attached rigidly to the object can be used as a digitizing pointer. in this example the CalTester rod is defined as a digitizing pointer.\\ {{:caltestermtd2.gif}}\\ Given an MTD2 Rod with the following dimensions (as defined for the CalTester)\\ \\ {{:CalTesterDefaultDimensions.jpg}}\\ with the following marker assignment.\\ {{:CalTesterPointerMarkers.jpg}}\\ The following digitizing wand configuration will compute a landmark at the TIP.\\ {{:CalTesterDigitizingWand.jpg}}\\ An image of the CalTester rod as a digitizing pointer. Note the blue sphere displaying the location of the landmark located at the tip of the rod.