Contour plot - how to replicate matplotlib contourf

[empet]

Hi @Jupiter,

You can plot your data as a Heatmap or Contour with no lines (to imitate your Matplotlib example), following this recent answer to a similar question:

Contour plot with non-uniform points

Hi @yootis, Welcome to Plotly forum! You can plot a contour over irregular data, by defining a regular grid that covers the initial data, and interpolating the so called z-values at the regular grid points: import plotly.graph_objects as go import numpy as np from scipy.interpolate import griddata np.random.seed(1273) #generate irregular data x= -1+2*np.random.rand(100) y= np.random.rand(100) xm, xM = x.min(), x.max() ym, yM = y.min(), y.max() #z-values at the irregular data z = np.sin(np.…

but replace the line:

Z = griddata((x, y), z, (xr, yr) , method='cubic')

with:

Z = griddata((x, y), z, (xr, yr) , method='linear')