Shed geometry affects warp loading, which determines weaving warp and loom running behavior. Although loom design largely determines shed geometry, the weaving mill can modify shed geometry through adjustments on the rear shed. Because the determination of a complete shed geometry is impossible at the mill, researchers developed a measuring unit that measures the weaving element coordinates and integrated the measuring program in a simulation program that calculates warp yarn loadings relative to shed geometry. Calculations can be made on the basis of realistic machine settings, and the effect of design changes can be precalculated.