rasterio's show method does not allow adding a color bar. Find a solution to this...</

You can use imshow() in rasterio directly: <div class="snippet-clipboard-content n

You can use imshow() in rasterio directly: <p dir="auto

Solved by <a class="issue-link js-issue-link" data-error-text="Failed to load title" d

Method show() does not allow colorbar about geoutils HOT 5 CLOSED

glaciohack commented on August 22, 2024

Method show() does not allow colorbar

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Comments (5)

jlandmann commented on August 22, 2024 3

Very cool! So just for the record, here's how it can work with rasterio:

  import rasterio
  from matplotlib import pyplot
  from matplotlib import colors, cm
  from rasterio.plot import show
  src = rasterio.open("some.tif")
  fig, ax = plt.subplots()
  cmap = pyplot.get_cmap('rainbow')
  data = src.read()
  show(data , transform=src.transform, ax=ax, cmap=cmap)
  fig.colorbar( cm.ScalarMappable(norm=colors.Normalize(vmin=np.nanmin(data), vmax=np.nanmax(data)), cmap=cmap), ax=ax)

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rhugonnet commented on August 22, 2024 1

same code than Johannes but with cartopy (>0.17) will get imshow() to handle the georeferences:

import cartopy
import matplotlib.pyplot as plt
import rasterio as rio
src = rio.open('/home/atom/ongoing/work_worldwide/N65W019_final_err.tif')
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1, projection=cartopy.crs.Robinson())
ax.gridlines(draw_labels=True, dms=True, x_inline=False, y_inline=False)
plt.imshow(src.read(1),cmap=plt.cm.Reds)
plt.colorbar()
plt.show()

Would that work?

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jlandmann commented on August 22, 2024

You can use imshow() in rasterio directly:

 import rasterio
from matplotlib import pyplot
src = rasterio.open("some.tif")
pyplot.imshow(src.read(1), cmap='pink')
pyplot.colorbar()
pyplot.show()