那个类有相关的值,比如name和numberOfSides。那个类也有相关的方法,比如findArea或者findPerimeter。shape类有子类,更具体。正方形是一个shape对象,其值shapeType等于square,numberOfSides等于4。它的findArea方法获取lengthOfSides值并求平方。同时,triangle对象对于name、shapeType、numberOfSides有不同的值,其findArea方...
class Triangle(object): ... def area(self): return abs((B.x * A.y - A.x * B.y) + (C.x * B.y - B.x * C.y) + (A.x * C.y - C.x * A.y)) / 2 def interiorPoint(self): r1 = random() r2 = random() # From http://www.cs.princeton.edu/~funk/tog02.pdf r...
print("{} is triangle".format(A)) else: print("不构成三角") deftriangle(f): a=float(input("第一条边是 = ")) b=float(input("第二条边是 = ")) c=float(input("第三条边是 = ")) f(a,b,c) triangle(is_triangle)# 常规函数的调用 补充知识:python编程:判断输入的边长能否构成三角形...
Python 计算三角形面积 三角形是由同一平面内的三条线段首尾顺次相接所组成的封闭图形。可用海伦公式通过三角形三条边计算其面积。
dst_image = cv2.resize(image, None, fx=0.5, fy=0.5, interpolation=cv2.INTER_AREA) 如果要放大图像,最好的方法是使用cv2.INTER_CUBIC插值方法(一种费时的插值方法)或cv2.INTER_LINEAR。 如果要缩小图像,通常的方法是使用cv2.INTER_LINEAR。 OpenCV 提供的五种插值方法是cv2.INTER_NEAREST(最近邻插值),cv2...
1#A program to calcualte the area of a triangle given2#the length of its three sides--a, b, and c3importmath4defmain():5a= float(input("Please enter the length of side a:"))6b= float(input("Please enter the length of side b:"))7c= float(input("Please enter the length of ...
[0,2,3]] H = homography.Haffine_from_points(tp2,fp2) im1_t = ndimage.affine_transform(im1,H[:2,:2], (H[0,2],H[1,2]),im2.shape[:2]) alpha = warp.alpha_for_triangle(tp2,im2.shape[0],im2.shape[1]) im4 = (1-alpha)*im3 + alpha*im1_t subplot(144) imshow(im4)...
'side2', and 'side3' fields. We also define a function "triangle_area()" that takes a "Triangle" NamedTuple as input and calculates its area using Heron's formula. Next, we create an instance of the "Triangle" NamedTuple and use the "triangle_area()" function to calculate its are...
Triangulation(corners[:, 0], corners[:, 1]) # For each corner of the triangle, the pair of other corners pairs = [corners[np.roll(range(3), -i)[1:]] for i in range(3)] # The area of the triangle formed by point xy and another pair or points tri_area = lambda xy, pair:...
), rets.std(), s=area) plt.xlabel('Expected return') plt.ylabel('Risk') for label, x, y in zip(rets.columns, rets.mean(), rets.std()): plt.annotate(label, xy=(x, y), xytext=(50, 50), textcoords='offset points', ha='right', va='bottom', arrowprops=dict(arrowstyle='-...