Step One – Developing the Basic System Step01-imageThe first step is to set up a regular grid, and to draw our basic shape, in this case a rectangle, at each center point. This should be fairly straightforward if you have any experience in Grasshopper and have looked at the earlier tutorials on this site. Here I create the rectangles by dividing the overall dimension by two and using the positive and negative of this number to define the rectangle’s X and Y domains respectively. Also, the grid spacing is determined by adding the path width variable to the rectangle dimensions. Note how the variables are connected to each other.