SOL4Py Samples

#******************************************************************************
#
#  Copyright (c) 2018-2019 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#******************************************************************************

 
#  We have used 'world.topo.bathy.200412.3x5400x2700.jpg' file in the following page.
# 
# http:# visibleearth.nasa.gov/view.php?id=73909
# 
# December, Blue Marble Next Generation w/ Topography and Bathymetry
# Credit: Reto St?ckli, NASA Earth Observatory

#  We have also used the following Mars map:
#  Owner: Caltech/JPL/USGS 
# https:# maps.jpl.nasa.gov/pix/mar0kuu2.jpg

#  TexturedSpheresRotationByKeyInput.py

# encodig: utf-8

import sys

# 
sys.path.append('../')

from SOL4Py.opengl.ZOpenGLMainView import *
from SOL4Py.opengl.ZOpenGLLight import *
from SOL4Py.opengl.ZOpenGLMaterial import *
from SOL4Py.opengl.ZOpenGLTexturedSphere import *
from SOL4Py.opengl.ZOpenGLSphere import *
from SOL4Py.opengl.ZOpenGLQuadric import *
from SOL4Py.opengl.ZOpenGLMateria import *

class MainView(ZOpenGLMainView):
  ##--------------------------------------------
  class OpenGLView(ZOpenGLView):
    
    def __init__(self, parent=None):
      self.parent = parent
      super(ZOpenGLView, self).__init__(parent)
      self.angle = 0


    def initializeGL(self):
      #glShadeModel(GL_FLAT)
      #glEnable(GL_DEPTH_TEST)      
      #glMatrixMode(GL_PROJECTION)
      #glLoadIdentity()                    
      #glMatrixMode(GL_MODELVIEW)

      self.light =   ZOpenGLLight(GL_LIGHT0)
      #self.light.position(-10.0, -10.0, -10.0, 1.0)
      self.light.position(0.0, 0.0, -20.0, 1.0)
      
      self.material = ZOpenGLMaterial(GL_FRONT)
      self.sphere   = None
      
      filename = "./images/PIA07782_hires.jpg";
      self.createTexture(filename)
      self.parent.set_filenamed_title(filename)
      self.axis = [-10.0, -10.0, 80.0]


    def paintGL(self):
      glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT)
      glClearColor(0.0, 0.0, 0.0, 0.0)
      glLoadIdentity()

      gluLookAt(0.0, 2.0, -1.0, 0.0, 0.0, 0.0, 0.0, 30.0, 0.0);

      glEnable(GL_LIGHTING)

      glTranslatef(0.0, 0.0, 0.0)
      glRotate(self.angle, self.axis[0], self.axis[1], self.axis[2]);
      if self.sphere != None:
        self.sphere.draw()


    def resizeGL(self, width, height):
      if width == 0 or height == 0:
        return
      glViewport(0, 0, width, height)
      glMatrixMode(GL_PROJECTION)
      glLoadIdentity()
      glFrustum(width / height, -width / height, -1.0, 1.0, 2.0, 40.0);
      glMatrixMode(GL_MODELVIEW)
 

    def keyPressEvent(self, event):
      if event.key() == Qt.Key_Left:
        self.angle = self.angle - 2.0
      if event.key() == Qt.Key_Right:
        self.angle = self.angle + 2.0
      
      self.update()


    def createTexture(self, filename):
      self.sphere = ZOpenGLTexturedSphere(filename, None, 1.0, 40, 40);

  ##--------------------------------------------
  
  
  # MainView Constructor
  def __init__(self, title, x, y, width, height):
    super(ZOpenGLMainView, self).__init__(title, x, y, width, height)

    # 1 Create first imageview.
    self.opengl_view = self.OpenGLView(self)

    # 2 Add the image view to a main_layout of this main view.
    self.add(self.opengl_view)

    self.show()


  def keyPressEvent(self, event):
    self.opengl_view.keyPressEvent(event)
    pass

  # Show FileOpenDialog and select an image file.
  def file_open(self):
    options = QFileDialog.Options()
    filename, _ = QFileDialog.getOpenFileName(self,"FileOpenDialog", "",
                     "All Files (*);;Image Files (*.png;*jpg;*.jpeg)", options=options)
    if filename:
      self.load_file(filename)


  def load_file(self, filename):
    self.opengl_view.createTexture(filename)    
    self.set_filenamed_title(filename)


#*************************************************
#    
if main(__name__):

  try:
    glutInit(sys.argv)
    
    app_name  = os.path.basename(sys.argv[0])
    applet    = QApplication(sys.argv)
  
    main_view = MainView(app_name, 40, 40, 600, 380)
    main_view.show ()

    applet.exec_()

  except:
    traceback.print_exc()