Update cone-plot.md

Author: LiamConnors

doc/python/cone-plot.md

@@ -128,8 +128,41 @@ fig.show()
 
 ### Sizemode
 
-Earlier examples use `sizemode="absolute"` when adjusting the cone size scaling with `sizeref`. `sizemode` also supports `raw`(new in 5.21) and `scaled`. For more details, see the [Cone Sizemode](https://plotly.com/python/reference/cone/#cone-sizemode) and https://plotly.com/python/reference/cone/#cone and [Cone Sizeref](https://plotly.com/python/reference/cone/#cone-sizeref) reference documentation.
+Earlier examples use `sizemode="absolute"` when adjusting the cone size scaling with `sizeref`. `sizemode` also supports `raw`(new in 5.21) and `scaled`.
 
+```python
+import plotly.graph_objects as go
+import pandas as pd
+
+df = pd.read_csv(
+    "https://raw.githubusercontent.com/plotly/datasets/master/cone_plot_data.csv"
+)
+
+fig = go.Figure(
+    data=go.Cone(
+        x=df["x"],
+        y=df["y"],
+        z=df["z"],
+        u=df["u"],
+        v=df["v"],
+        w=df["w"],
+        sizemode="raw",
+        sizeref=0.1,
+        colorscale="Portland",
+        cmin=0,
+        cmax=80,
+        hoverinfo="u+v+w+text",
+        text="-> wind <-",
+    ),
+    layout=dict(
+        width=900, height=600, scene=dict(camera=dict(eye=dict(x=1.2, y=0, z=0.6)))
+    ),
+)
+
+
+fig.show()
+
+```
 
 #### Reference
 See https://plotly.com/python/reference/ for more information and chart attribute options!