dfg_3dviewer_drupal_module/scripts/CityGML2OBJv2/generateMTL.py
2026-06-25 09:09:16 +02:00

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2.1 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# The MIT License (MIT)
# This code is part of the CityGML2OBJs package
# Copyright (c) 2014
# Filip Biljecki
# Delft University of Technology
# fbiljecki@gmail.com
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import numpy as np
import matplotlib.cm as cm
#-- Number of classes of the colormap
no_values = 101
#-- Select the colormap and get its RGB values for each of the classes
colormap = cm.get_cmap("afmhot", no_values) # http://matplotlib.org/examples/color/colormaps_reference.html
colormap_vals = colormap(np.arange(no_values)).tolist()
#-- This is the MTL file
mtlcontents = ""
#-- Class by class... MTL!
for i in range(0, no_values):
b = float(i)/100
mtlcontents += "newmtl " + str(b) + "\n"
mtlcontents += "Ka " + str(colormap_vals[i][0]) + " " + str(colormap_vals[i][1]) + " " + str(colormap_vals[i][2]) + "\n"
mtlcontents += "Kd " + str(colormap_vals[i][0]) + " " + str(colormap_vals[i][1]) + " " + str(colormap_vals[i][2]) + "\n"
#-- Write the MTL
with open("colormap.mtl", "w") as mtl_file:
mtl_file.write(mtlcontents)