Cones Size Problem

📊 Plotly Python
2

Hi every one:

Above problem solved by great @empet comment on (Confusing behaviour of go.Cone in 3D Scatter - wrong vector direction - #2 by empet)

Here is a sample code for future usage:

import plotly.graph_objects as go
import plotly as plt
import numpy as np
import random as rnd

def rndata():
    
    a=-20
    b=20
    n=1
    rslt=[]
    for i in range(n):
        rslt.extend([rnd.randint(a,b),rnd.randint(a,b),None])

    return rslt


fig = go.Figure()


for i in range(10):
    x= rndata()
    y=rndata()
    z=rndata()

    size=((x[1]-x[0])**2+(y[1]-y[0])**2+(z[1]-z[0])**2)**0.5
    axis=[(x[1]-x[0])/size,(y[1]-y[0])/size,(z[1]-z[0])/size]

    fig.add_scatter3d(x=x,y=y,z=z,mode="lines")

    u=[axis[0],None]
    v=[axis[1],None]
    w=[axis[2],None]
    xx=[x[1],None]
    yy=[y[1],None]
    zz=[z[1],None]

    cl=rnd.choice(plt.colors.DEFAULT_PLOTLY_COLORS)
    sizes=rnd.randint(1,10)
    fig = fig.add_cone( opacity=0.5, sizemode='absolute',sizeref=sizes,showscale=False,
                       colorscale=[cl,cl],
                           anchor='tip', #['tip', 'tail', 'cm', 'center']
        x=xx,
        y=yy,
        z=zz,
        u=u,
        v=v,
        w=w,

        text=str(sizes))

fig.update_layout(scene_aspectmode='data',)
fig.show()