Handheld electronic device for geometric measurements and marking an intersection point

A method for simultaneously measuring distances from two or more reference points in space to locate a target point on a surface, the target point is at pre-determined distances from the two or more reference points, the method comprising the steps of:

• providing an electronic device comprising:
• a housing having a front wall, a rear wall, a left wall, a right wall, a top wall, and a bottom wall,
• at least two multi-axis distance measurement sensors encased in the housing, wherein the at least two multi-axis distance measurement sensors configured to simultaneously measure distances of an intersection point on the rear wall of the housing from at least two reference points in space respectively, and
• a display on the front wall of the housing configured to display values of the measured distances,
• wherein the housing further comprises a handle forming a T-shape, wherein the handle is configured to be grabbed in a hand for operating the electronic device,
• wherein the housing further comprises a central aperture in the rear wall, the electronic device further comprises a marking unit encased in the housing, the marking unit has a tip, the tip configured to protrude from the central aperture, wherein a center of the central aperture, the tip of the marker, and the intersection point coincide,
• wherein the electronic device further comprises a button configured to be operated to actuate the marking unit, wherein actuation of the marking unit results in extension of the tip of the marker from the central aperture;
• positioning the electronic device on the surface;
• repositioning the electronic device relative to the surface until the measured distances are substantially same as the pre-determined distances;
• and
• upon repositioning the device, actuating the button.