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config surface contour levels #218

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config surface contour levels
Nov 27, 2019
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28 changes: 28 additions & 0 deletions python/3d-surface-plots.md
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Expand Up @@ -76,7 +76,35 @@ fig.update_layout(title='Mt Bruno Elevation', autosize=False,

fig.show()
```
#### Configure Surface Contour Levels
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.

```python
import plotly.graph_objects as 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()
```
#### Multiple 3D Surface Plots

```python
Expand Down