Ideal, real and virtual textile structure modelling and visualization

Usually the software for textile visualization uses ideal model based on simplified structure assumptions that may not be in a good agreement with reality. Real model reconstructs a small volume of structure from 2D parallel cuts. Proposed virtual model joins both the models. In general, any structure parameter consists of two parts: fixed and variable. Specific statistical methods make possible to determine or generate both the components, if there are many photographs of random cuts. The correct virtual model allows generating many structures that can exist in reality. Ideal and real models were realized, the virtual model is proposed. Both the realized models use virtual reality, VRML, for structure visualization. Because of its simplicity, ideal model allows the use of many VRML methods: small cylinders, extrusion approach, small surfaces. Experiment is the base of real model. Space structure is reconstructed from the yarn boundaries that are on photographs of parallel equidistant cuts. In the case of simple structure the comparison of real and ideal model shows that the ideal model with proper parameters is close to reality.