#!/usr/bin/env python
# coding: utf-8

# # surfaces
# Surfaces example
# 
# 
# 
# 
# **Author:** Wim Lavrijsen  
# <i><small>This notebook tutorial was automatically generated with <a href= "https://github.com/root-project/root/blob/master/documentation/doxygen/converttonotebook.py">ROOTBOOK-izer</a> from the macro found in the ROOT repository  on Wednesday, April 17, 2024 at 11:16 AM.</small></i>

# In[1]:


from ROOT import TCanvas, TPaveText, TPad, TF2
from ROOT import gROOT, gStyle



c1 = TCanvas( 'c1', 'Surfaces Drawing Options', 200, 10, 700, 900 )
c1.SetFillColor( 42 )
gStyle.SetFrameFillColor( 42 )
title = TPaveText( .2, 0.96, .8, .995 )
title.SetFillColor( 33 )
title.AddText( 'Examples of Surface options' )
title.Draw()

pad1 = TPad( 'pad1', 'Gouraud shading', 0.03, 0.50, 0.98, 0.95, 21 )
pad2 = TPad( 'pad2', 'Color mesh',      0.03, 0.02, 0.98, 0.48, 21 )
pad1.Draw()
pad2.Draw()


# We generate a 2-D function

# In[2]:


f2 = TF2( 'f2', 'x**2 + y**2 - x**3 -8*x*y**4', -1, 1.2, -1.5, 1.5 )
f2.SetContour( 48 )
f2.SetFillColor( 45 )


# Draw this function in pad1 with Gouraud shading option

# In[3]:


pad1.cd()
pad1.SetPhi( -80 )
pad1.SetLogz()
f2.Draw( 'surf4' )


# Draw this function in pad2 with color mesh option

# In[4]:


pad2.cd()
pad2.SetTheta( 25 )
pad2.SetPhi( -110 )
pad2.SetLogz()
f2.Draw( 'surf1' )

c1.Update()


# Draw all canvases 

# In[5]:


from ROOT import gROOT 
gROOT.GetListOfCanvases().Draw()