Mesure Etalon

While developping the application surface_rec it was usefull to compare results to an existing object with well-known properties to be sure the reconstruction was properly working. In our case, this object was a rectangular object with almost-sinusoidal waves in the horizontal direction and flat in the vertical direction.

Here is the official description of every known properties of the piece used as an etalon for the project Polymap. It represents a sagittal section or the object.