[bokeh] 이미지 (Images)

N = 50
img = np.empty((N, N), dtype=np.uint32)
view = img.view(dtype=np.uint8).reshape((N, N, 4))
for i in range(N):
  for j in range(N):
    view[i, j, 0] = int(127 * i / N)
    view[i, j, 1] = 127
    view[i, j, 2] = int(255 * j / N)
    view[i, j, 3] = 255

p = figure(plot_width=400, plot_height=400,
           x_range=(0, 10), y_range=(0, 10))
p.image_rgba(image=[img], x=[0], y=[0], dw=[10], dh=[10])
show(p)

 

l = np.linspace(0, 20, 400)	#균일한 값 생성
X, Y = np.meshgrid(l, l)    #mesh 그리드 표현
d = np.sin(X) * np.cos(Y)

p = figure(plot_width=400, plot_height=400)
p.x_range.range_padding = p.y_range.range_padding = 0
p.image(image=[d], x=0, y=0, dw=10, dh=10, palette="Viridis11", level="image")
p.grid.grid_line_width = 0.5
show(p)

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