Processes of determining features of a paper-making fabric. The processes utilize a representation of a portion of a surface of the fabric, with the representation showing at least one of (i) locations and (ii) sizes of knuckles and pockets in the surface of the fabric. An image of the portion of the fabric is generated based on the representation. Using the displayed image, an outline is drawn around at least one of the knuckles, and guidelines are drawn such that the guidelines at least one of (i) pass through the center of the outlined knuckle, (ii) pass through the other knuckles, and (iii) form a shape that surrounds areas of the image that correspond to where the pockets are formed between the knuckles. With the outlined knuckle and guidelines, properties that affect the paper-making functionality of the fabric may be calculated.