I have defined two space dimesions ( x and z ) and I was able to manually "draw" an object to use it as a boolen for solving an equation. I defined it as it follows: A = np.zeros((nz,nx)) object = np.ones_like(A) object[ int(5/dz):int(10/dz) , int(5/dx):int(10/dz) ] = 2 object = object == 2 By doing that I can define an square 5x10 in z dimesion and 5x10 in x dimesion , and apply the algorythim which understands this as an area , I think. But when it comes to draw complex areas it ends up being hard doing it by little squares and rectangles. So I want to automatize an area generation by mouse clicking and I want to be able to use this area as a boolean. I was able to draw a polygon using: import matplotlib.pyplot as plt import numpy as np from matplotlib.patches import Polygon fig, ax = plt.subplots() object = np.array(plt.ginput(n=-100,mouse_stop=2)) p = Polygon(object, alpha=0.5) plt.gca().add_artist(p) plt.draw() plt.show() But this outputs z and x coordinates of the vertices, and I tried to use it as boleean but I could'nt write it so that python uderstands it as the area defined by those points. Is this problem easy to solve? Continue reading...
