User input gloves and input methods are described that are well suited to provide input to computer modeling (eg CAD) and augmented reality (AR) systems, including wearable AR and spatial AR. Each glove comprises palm mounted ultrasonic transducers, accelerometers, finger based pinch inputs and a wireless communication module. The gloves can be used to measure distances over the natural range of distances that hands can be placed, as well as their orientation, with sufficient resolution to facilitate a range of gesture based input methods to be developed and utilized, including distance-based modeling by measurement. Further the gloves are light weight, allow fast input of modeling measurements, are easy to use, and reduce fatigue compared to existing glove based input systems. The user input gloves, and associated input techniques can be used to measure small and body sized objects using one or two hands, and large objects can be measured using single handed measurements. Further models for both small and large objects can be generated and manipulated through the use of a numeric input technique to obtain an amplification factor to magnify the effective distances measured.