Cross hatching is the same as hatching except the strains cross above each other. The greater that the strains cross, the darker the value. Cross hatching can be used with rigid straight strains or as cross contour lines to determine the form of the article. Straight traces are uncomplicated https://zionjcpan.blogstival.com/59534656/how-ink-drawing-for-beginners-can-save-you-time-stress-and-money 
