fig.show()

This example shows how to slice the surface graph on the desired position for each of x, y and z axis.[contours.x.start](https://plot.ly/python/reference/#surface-contours-x-start) sets the starting contour level value,`end` sets the end of it, and`size` sets the step between each contour level.

import plotly.graph_objectsas go

fig= go.Figure(go.Surface(

contours= {

"x": {"show":True,"start":1.5,"end":2,"size":0.04,"color":"white"},

"z": {"show":True,"start":0.5,"end":0.8,"size":0.05}

},

x= [1,2,3,4,5],

y= [1,2,3,4,5],

z= [

[0,1,0,1,0],

[1,0,1,0,1],

[0,1,0,1,0],

[1,0,1,0,1],

[0,1,0,1,0]

]))

fig.update_layout(

scene= {

"xaxis": {"nticks":20},

"zaxis": {"nticks":4},

'camera_eye': {"x":0,"y":-1,"z":0.5},

"aspectratio": {"x":1,"y":1,"z":0.2}

})

fig.show()