.. _inst-statistics: Layout Inst Example =================== This example should be used on a layout view with some instances in it. It will calculate the occurencies of the instance and the accumulated area of the cell. Afterwards a pie chart with matplotlib is created .. code-block:: python from skillbridge import Workspace from collections import Counter from matplotlib.pyplot import pie,figure,title # Workspace.fix_completion() #use this function for correct tab completion in jupyter-notebook ws = Workspace.open() cv = ws.ge.get_edit_cell_view() def bbox_to_area(b_box): return (b_box[1][0]- b_box[0][0]) * (b_box[1][1] - b_box[0][1]) # Get a tuple of instance cellname and area insts = [(inst.cell_name,bbox_to_area(inst.b_box)) for inst in cv.instances] # Get a dictionary of cell_name and occurences counts = Counter(name for name, _ in insts) # create dictionary of cell_name and area areas = {} for name,area in insts: areas.setdefault(name,0) areas[name] += area # plot the pie chart f = figure(figsize=(12, 12)) sub1 = f.add_subplot(121) sub1.set_title("Number of instances") pie(counts.values(), labels = counts.keys()) sub2.set_title("Accumulated Area of each Cell") pie(areas.values(), labels = areas.keys())