1 | """ |
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2 | This software was developed by the University of Tennessee as part of the |
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3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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4 | project funded by the US National Science Foundation. |
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5 | |
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6 | See the license text in license.txt |
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7 | |
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8 | copyright 2009, University of Tennessee |
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9 | """ |
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10 | import wx |
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11 | import math |
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12 | |
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13 | try: |
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14 | import OpenGL |
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15 | except: |
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16 | import sys, os |
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17 | sys.path.insert(1,os.path.dirname(sys.executable)) |
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18 | |
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19 | import OpenGL.GL |
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20 | try: |
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21 | from wx import glcanvas |
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22 | haveGLCanvas = True |
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23 | except ImportError: |
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24 | haveGLCanvas = False |
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25 | try: |
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26 | # The Python OpenGL package can be found at |
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27 | # http://PyOpenGL.sourceforge.net/ |
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28 | from OpenGL.GL import * |
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29 | from OpenGL.GLU import * |
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30 | from OpenGL.GLUT import * |
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31 | haveOpenGL = True |
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32 | except ImportError: |
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33 | haveOpenGL = False |
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34 | |
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35 | # Color set |
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36 | DEFAULT_COLOR = [1.0, 1.0, 0.0, .2] |
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37 | COLOR_RED = [1.0, 0.0, 0.0, .2] |
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38 | COLOR_GREEN = [0.0, 1.0, 0.0, .2] |
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39 | COLOR_BLUE = [0.0, 0.0, 1.0, .2] |
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40 | COLOR_YELLOW = [1.0, 1.0, 0.0, .2] |
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41 | COLOR_HIGHLIGHT = [.2, .2, .8, .5] |
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42 | |
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43 | # List of shapes |
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44 | SHAPE_LIST = [] |
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45 | |
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46 | import ShapeParameters |
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47 | |
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48 | class SimPanel(wx.Panel): |
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49 | """ |
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50 | 3D viewer to support real-space simulation. |
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51 | """ |
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52 | window_name = "3dview" |
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53 | window_caption = "3D viewer" |
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54 | |
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55 | def __init__(self, parent, id = -1, plots = None, standalone=False, **kwargs): |
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56 | wx.Panel.__init__(self, parent, id = id, **kwargs) |
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57 | self.parent = parent |
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58 | |
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59 | #Add a sizer |
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60 | mainSizer = wx.BoxSizer(wx.VERTICAL) |
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61 | sliderSizer = wx.BoxSizer(wx.HORIZONTAL) |
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62 | |
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63 | self.canvas = CanvasBase(self) |
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64 | self.canvas.SetMinSize((200,2100)) |
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65 | |
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66 | #Add the model to it's sizer |
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67 | mainSizer.Add(self.canvas, 1, wx.EXPAND) |
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68 | |
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69 | #Add the Subsizers to mainsizer |
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70 | mainSizer.Add(sliderSizer, 0, wx.EXPAND) |
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71 | |
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72 | self.SetSizer(mainSizer) |
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73 | self.Bind(wx.EVT_CONTEXT_MENU, self._on_context_menu) |
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74 | |
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75 | |
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76 | def _on_context_menu(self, event): |
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77 | """ |
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78 | Default context menu for a plot panel |
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79 | """ |
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80 | # Slicer plot popup menu |
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81 | id = wx.NewId() |
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82 | slicerpop = wx.Menu() |
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83 | slicerpop.Append(id, '&Reset 3D View') |
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84 | wx.EVT_MENU(self, id, self.canvas.resetView) |
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85 | |
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86 | pos = event.GetPosition() |
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87 | pos = self.ScreenToClient(pos) |
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88 | self.PopupMenu(slicerpop, pos) |
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89 | |
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90 | class CanvasBase(glcanvas.GLCanvas): |
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91 | """ |
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92 | 3D canvas to display OpenGL 3D shapes |
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93 | """ |
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94 | window_name = "Simulation" |
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95 | window_caption = "Simulation" |
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96 | |
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97 | def __init__(self, parent): |
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98 | glcanvas.GLCanvas.__init__(self, parent, -1) |
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99 | self.init = False |
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100 | # initial mouse position |
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101 | self.lastx = self.x = 30 |
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102 | self.lasty = self.y = 30 |
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103 | self.tr_lastx = self.tr_x = 30 |
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104 | self.tr_lasty = self.tr_y = 30 |
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105 | self.size = None |
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106 | self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground) |
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107 | self.Bind(wx.EVT_SIZE, self.OnSize) |
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108 | self.Bind(wx.EVT_PAINT, self.OnPaint) |
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109 | self.Bind(wx.EVT_LEFT_DOWN, self.OnMouseDown) |
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110 | self.Bind(wx.EVT_RIGHT_DOWN, self.OnMouseDown) |
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111 | self.Bind(wx.EVT_LEFT_UP, self.OnMouseUp) |
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112 | self.Bind(wx.EVT_RIGHT_UP, self.OnRightUp) |
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113 | self.Bind(wx.EVT_MOTION, self.OnMouseMotion) |
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114 | self.Bind(wx.EVT_MOUSEWHEEL, self._onMouseWheel) |
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115 | |
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116 | self.initialized = False |
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117 | self.shapes = [] |
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118 | self.parent = parent |
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119 | |
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120 | # Reference vectors |
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121 | self.x_vec = [1,0,0] |
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122 | self.y_vec = [0,1,0] |
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123 | |
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124 | self.mouse_down = False |
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125 | self.scale = 1.0 |
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126 | self.zoom = 1.0 |
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127 | self.translation = [0,0,0] |
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128 | |
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129 | # Bind to Edit events |
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130 | self.parent.Bind(ShapeParameters.EVT_EDIT_SHAPE, self._onEditShape) |
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131 | |
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132 | def resetView(self, evt=None): |
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133 | """ |
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134 | Resets zooming, translation and rotation. |
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135 | """ |
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136 | self.zoom = 1.0 |
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137 | self.scale = 1.0 |
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138 | self.x_vec = [1,0,0] |
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139 | self.y_vec = [0,1,0] |
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140 | glLoadIdentity() |
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141 | self.Refresh() |
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142 | |
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143 | def _onEditShape(self, evt): |
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144 | evt.Skip() |
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145 | evt.shape.highlight(True) |
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146 | for item in self.shapes: |
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147 | if not item == evt.shape: |
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148 | item.highlight(False) |
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149 | self.Refresh(False) |
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150 | |
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151 | def OnEraseBackground(self, event): |
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152 | pass # Do nothing, to avoid flashing on MSW. |
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153 | |
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154 | def OnSize(self, event): |
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155 | size = self.size = self.GetClientSize() |
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156 | if self.GetContext(): |
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157 | glViewport(0, 0, size.width, size.height) |
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158 | event.Skip() |
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159 | |
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160 | def OnPaint(self, event): |
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161 | size = self.GetClientSize() |
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162 | side = size.width |
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163 | if size.height<size.width: |
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164 | side = size.height |
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165 | |
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166 | if self.GetContext(): |
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167 | glViewport(0, 0, side, side) |
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168 | self.SetMinSize((side,side)) |
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169 | |
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170 | dc = wx.PaintDC(self) |
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171 | self.SetCurrent() |
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172 | if not self.init: |
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173 | self.InitGL() |
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174 | self.init = True |
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175 | self.OnDraw() |
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176 | event.Skip() |
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177 | |
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178 | def _onMouseWheel(self, evt): |
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179 | # Initialize mouse position so we don't have unwanted rotation |
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180 | self.x, self.y = self.lastx, self.lasty = evt.GetPosition() |
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181 | self.tr_x, self.tr_y = self.tr_lastx, self.tr_lasty = evt.GetPosition() |
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182 | |
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183 | scale = 1.15 |
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184 | if evt.GetWheelRotation()<0: |
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185 | scale = 1.0/scale |
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186 | |
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187 | self.zoom *= scale |
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188 | |
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189 | glScale(scale, scale, scale) |
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190 | self.Refresh(False) |
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191 | |
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192 | def OnMouseDown(self, evt): |
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193 | self.SetFocus() |
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194 | self.CaptureMouse() |
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195 | self.x, self.y = self.lastx, self.lasty = evt.GetPosition() |
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196 | self.tr_x, self.tr_y = self.tr_lastx, self.tr_lasty = self.x, self.y |
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197 | self.mouse_down = True |
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198 | |
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199 | def OnMouseUp(self, evt): |
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200 | self.ReleaseMouse() |
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201 | self.mouse_down = False |
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202 | |
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203 | def OnRightUp(self, evt): |
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204 | self.OnMouseUp(evt) |
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205 | if self.x==self.tr_lastx and self.y==self.tr_lasty: |
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206 | self._on_context_menu(evt) |
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207 | |
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208 | def _on_context_menu(self, event): |
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209 | """ |
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210 | Default context menu for a plot panel |
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211 | """ |
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212 | id = wx.NewId() |
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213 | slicerpop = wx.Menu() |
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214 | slicerpop.Append(id, '&Reset 3D View') |
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215 | wx.EVT_MENU(self, id, self.resetView) |
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216 | |
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217 | pos = event.GetPosition() |
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218 | #pos = self.ScreenToClient(pos) |
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219 | self.PopupMenu(slicerpop, pos) |
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220 | |
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221 | def OnMouseMotion(self, evt): |
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222 | if evt.Dragging() and evt.LeftIsDown(): |
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223 | self.tr_lastx, self.tr_lasty = self.tr_x, self.tr_y |
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224 | x, y = evt.GetPosition() |
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225 | |
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226 | # Min distance to do anything |
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227 | if math.fabs(self.lastx-x)>10 or math.fabs(self.lasty-y)>10: |
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228 | |
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229 | self.lastx, self.lasty = self.x, self.y |
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230 | |
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231 | |
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232 | if math.fabs(self.lastx-x)>math.fabs(self.lasty-y): |
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233 | self.x = x |
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234 | else: |
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235 | self.y = y |
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236 | |
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237 | #self.x, self.y = evt.GetPosition() |
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238 | self.Refresh(False) |
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239 | |
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240 | elif evt.Dragging() and evt.RightIsDown(): |
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241 | self.lastx, self.lasty = self.x, self.y |
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242 | self.tr_lastx, self.tr_lasty = self.tr_x, self.tr_y |
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243 | self.tr_x, self.tr_y = evt.GetPosition() |
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244 | self.Refresh(False) |
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245 | |
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246 | def InitGL( self ): |
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247 | glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGBA) |
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248 | #glShadeModel(GL_FLAT); |
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249 | |
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250 | glMatrixMode(GL_PROJECTION) |
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251 | |
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252 | glLight(GL_LIGHT0, GL_AMBIENT, [.2, .2, .2, 0]) |
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253 | |
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254 | # Object color |
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255 | #glLight(GL_LIGHT0, GL_DIFFUSE, COLOR_BLUE) |
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256 | |
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257 | glLight(GL_LIGHT0, GL_POSITION, [1.0, 1.0, -1.0, 0.0]) |
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258 | |
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259 | |
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260 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, [1, 1, 1, 0]) |
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261 | glEnable(GL_LIGHTING) |
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262 | glEnable(GL_LIGHT0) |
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263 | glEnable(GL_BLEND) |
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264 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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265 | |
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266 | glEnable ( GL_ALPHA_TEST ) ; |
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267 | glAlphaFunc ( GL_GREATER, 0 ) ; |
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268 | glPixelStorei(GL_PACK_ALIGNMENT, 1) |
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269 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1) |
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270 | |
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271 | glEnable(GL_NORMALIZE) |
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272 | glDepthFunc(GL_LESS) |
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273 | glEnable(GL_DEPTH_TEST) |
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274 | glDepthMask(GL_TRUE); |
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275 | glClearColor (1.0, 1.0, 1.0, 0.0); |
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276 | #glClear (GL_COLOR_BUFFER_BIT); |
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277 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) |
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278 | |
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279 | |
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280 | gluPerspective(0, 1.0, 0.1, 60.0); |
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281 | |
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282 | glMatrixMode(GL_MODELVIEW) |
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283 | |
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284 | def getMaxSize(self): |
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285 | max_size = 0.0 |
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286 | # Ready to draw shapes |
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287 | for item in self.shapes: |
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288 | item.draw() |
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289 | l = item.get_length() |
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290 | if l>max_size: |
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291 | max_size = l |
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292 | return max_size |
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293 | |
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294 | def OnDraw(self): |
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295 | # clear color and depth buffers |
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296 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) |
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297 | # use a fresh transformation matrix |
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298 | |
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299 | # get the max object size to re-scale |
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300 | max_size = 1.0 |
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301 | # Ready to draw shapes |
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302 | for item in self.shapes: |
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303 | item.draw() |
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304 | l = item.get_length() |
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305 | if l>max_size: |
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306 | max_size = l |
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307 | |
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308 | max_size *= 1.05 |
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309 | scale = self.scale/max_size |
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310 | glScale(scale, scale, scale) |
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311 | self.scale = max_size |
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312 | |
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313 | self.drawAxes() |
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314 | |
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315 | if self.mouse_down: |
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316 | if math.fabs((self.x - self.lastx))>math.fabs((self.y - self.lasty)): |
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317 | angle = 10.0*(self.x - self.lastx) / math.fabs(self.x - self.lastx) |
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318 | glRotate(angle, self.y_vec[0], self.y_vec[1], self.y_vec[2]); |
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319 | self._rot_y(angle) |
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320 | elif math.fabs(self.y - self.lasty)>0: |
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321 | angle = 10.0*(self.y - self.lasty) / math.fabs(self.y - self.lasty) |
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322 | glRotate(angle, self.x_vec[0], self.x_vec[1], self.x_vec[2]); |
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323 | self._rot_x(angle) |
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324 | |
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325 | self.lasty = self.y |
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326 | self.lastx = self.x |
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327 | |
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328 | w, h = self.GetVirtualSize() |
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329 | |
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330 | # Translate in the x-y plane |
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331 | vx = self.x_vec[0] * 2.0*float(self.tr_x - self.tr_lastx)/w \ |
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332 | + self.y_vec[0] * 2.0*float(self.tr_lasty - self.tr_y)/h |
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333 | vy = self.x_vec[1] * 2.0*float(self.tr_x - self.tr_lastx)/w \ |
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334 | + self.y_vec[1] * 2.0*float(self.tr_lasty - self.tr_y)/h |
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335 | vz = self.x_vec[2] * 2.0*float(self.tr_x - self.tr_lastx)/w \ |
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336 | + self.y_vec[2] * 2.0*float(self.tr_lasty - self.tr_y)/h |
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337 | |
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338 | glTranslate(self.scale*vx/self.zoom, self.scale*vy/self.zoom, self.scale*vz/self.zoom) |
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339 | |
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340 | # push into visible buffer |
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341 | self.SwapBuffers() |
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342 | |
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343 | def _matrix_mult(self, v, axis, angle): |
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344 | c = math.cos(angle) |
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345 | s = math.sin(angle) |
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346 | x = axis[0] |
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347 | y = axis[1] |
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348 | z = axis[2] |
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349 | vx = v[0]*(x*x*(1-c)+c) + v[1]*(x*y*(1-c)-z*s) + v[2]*(x*z*(1-c)+y*s) |
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350 | vy = v[0]*(y*x*(1-c)+z*s) + v[1]*(y*y*(1-c)+c) + v[2]*(y*z*(1-c)-x*s) |
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351 | vz = v[0]*(x*z*(1-c)-y*s) + v[1]*(y*z*(1-c)+x*s) + v[2]*(z*z*(1-c)+c) |
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352 | return [vx, vy, vz] |
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353 | |
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354 | def _rot_y(self, theta): |
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355 | """ |
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356 | Rotate the view by theta around the y-axis |
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357 | """ |
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358 | angle = theta/180.0*math.pi |
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359 | axis = self.y_vec |
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360 | self.x_vec = self._matrix_mult(self.x_vec, self.y_vec, -angle) |
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361 | |
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362 | def _rot_x(self, theta): |
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363 | """ |
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364 | Rotate the view by theta around the x-axis |
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365 | """ |
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366 | angle = theta/180.0*math.pi |
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367 | self.y_vec = self._matrix_mult(self.y_vec, self.x_vec, -angle) |
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368 | |
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369 | |
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370 | def addShape(self, shape, name=None): |
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371 | """ |
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372 | Add a shape to the list of displayed shapes |
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373 | @param shape: BaseShape object |
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374 | @param name: name given to the shape |
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375 | """ |
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376 | if not name==None: |
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377 | shape.name = name |
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378 | shape.params['order']=len(self.shapes) |
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379 | self.shapes.append(shape) |
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380 | self.Refresh(False) |
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381 | |
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382 | def delShape(self, name): |
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383 | """ |
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384 | Delete a shape by name |
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385 | @param name: name of the shape to be deleted |
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386 | """ |
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387 | for i in range(len(self.shapes)): |
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388 | if self.shapes[i].name == name: |
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389 | del self.shapes[i] |
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390 | break |
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391 | self.Refresh(False) |
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392 | |
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393 | def getMaxVolume(self): |
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394 | """ |
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395 | Returns the maximum volume of the combination of all shapes. |
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396 | The maximum volume is the simple sum of the volumes of all the shapes. |
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397 | @return: sum of the volumes of all the shapes [float] |
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398 | """ |
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399 | sum = 0 |
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400 | for item in self.shapes: |
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401 | sum += item.get_volume() |
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402 | return sum |
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403 | |
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404 | def drawAxes(self): |
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405 | """ |
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406 | Draw 3D axes |
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407 | """ |
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408 | pos = self.scale * 0.7 |
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409 | |
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410 | # Z-axis is red |
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411 | zaxis= Arrow(x=pos, y=-pos, z=0, r_cyl=self.scale*0.005, r_cone=self.scale*0.01, |
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412 | l_cyl=self.scale*0.1, l_cone=self.scale*0.05) |
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413 | zaxis.color = COLOR_RED |
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414 | zaxis.draw() |
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415 | |
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416 | # Y-axis is yellow |
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417 | yaxis= Arrow(x=pos, y=-pos, z=0, r_cyl=self.scale*0.005, r_cone=self.scale*0.01, |
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418 | l_cyl=self.scale*0.1, l_cone=self.scale*0.05) |
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419 | yaxis.color = COLOR_YELLOW |
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420 | yaxis.rotate(-90,0,0) |
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421 | yaxis.draw() |
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422 | |
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423 | # X-axis is green |
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424 | xaxis= Arrow(x=pos, y=-pos, z=0, r_cyl=self.scale*0.005, r_cone=self.scale*0.01, |
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425 | l_cyl=self.scale*0.1, l_cone=self.scale*0.05) |
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426 | xaxis.color = COLOR_GREEN |
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427 | xaxis.rotate(0,-90,0) |
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428 | xaxis.draw() |
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429 | |
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430 | glLight(GL_LIGHT0, GL_DIFFUSE, DEFAULT_COLOR) |
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431 | |
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432 | |
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433 | class BaseShape: |
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434 | """ |
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435 | Basic shape functionality |
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436 | """ |
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437 | def __init__(self, x=0, y=0, z=0): |
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438 | self.name = '' |
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439 | ## Position |
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440 | self.x = x |
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441 | self.y = y |
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442 | self.z = z |
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443 | ## Orientation |
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444 | self.theta_x = 0 |
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445 | self.theta_y = 0 |
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446 | self.theta_z = 0 |
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447 | |
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448 | # Params |
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449 | self.params = {} |
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450 | self.params['contrast'] = 1.0 |
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451 | self.params['order'] = 0 |
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452 | self.details = {} |
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453 | self.details['contrast'] = 'A-2' |
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454 | self.details['order'] = ' ' |
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455 | |
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456 | self.highlighted = False |
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457 | self.color = DEFAULT_COLOR |
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458 | |
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459 | def get_volume(self): |
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460 | return 0 |
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461 | |
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462 | def get_length(self): |
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463 | return 1.0 |
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464 | |
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465 | def highlight(self, value=False): |
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466 | self.highlighted = value |
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467 | |
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468 | def rotate(self, alpha, beta, gamma): |
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469 | """ |
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470 | Set the rotation angles of the shape |
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471 | @param alpha: angle around the x-axis [degrees] |
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472 | @param beta: angle around the y-axis [degrees] |
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473 | @param gamma: angle around the z-axis [degrees] |
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474 | """ |
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475 | self.theta_x = alpha |
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476 | self.theta_y = beta |
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477 | self.theta_z = gamma |
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478 | |
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479 | def _rotate(self): |
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480 | """ |
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481 | Perform the OpenGL rotation |
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482 | |
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483 | Note that the rotation order is reversed. |
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484 | We do Y, X, Z do be compatible with simulation... |
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485 | """ |
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486 | |
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487 | glRotated(self.theta_z, 0, 0, 1) |
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488 | glRotated(self.theta_x, 1, 0, 0) |
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489 | glRotated(self.theta_y, 0, 1, 0) |
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490 | |
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491 | def _pre_draw(self): |
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492 | if self.highlighted: |
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493 | glLight(GL_LIGHT0, GL_DIFFUSE, COLOR_HIGHLIGHT) |
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494 | else: |
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495 | glLight(GL_LIGHT0, GL_DIFFUSE, self.color) |
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496 | |
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497 | |
---|
498 | class Arrow(BaseShape): |
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499 | """ |
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500 | Arrow shape used to show the three axes |
---|
501 | """ |
---|
502 | def __init__(self, x=0, y=0, z=0, r_cyl=0.01, r_cone=0.02, l_cyl=0.3, l_cone=0.1): |
---|
503 | BaseShape.__init__(self, x, y, z) |
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504 | self.r_cyl = r_cyl |
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505 | self.r_cone = r_cone |
---|
506 | self.l_cyl = l_cyl |
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507 | self.l_cone = l_cone |
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508 | |
---|
509 | def draw(self): |
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510 | self._pre_draw() |
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511 | glPushMatrix() |
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512 | glTranslate(self.x, self.y, self.z) |
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513 | |
---|
514 | # Perform rotation |
---|
515 | glRotate(self.theta_x, 1, 0, 0) |
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516 | glRotate(self.theta_y, 0, 1, 0) |
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517 | glRotate(self.theta_z, 0, 0, 1) |
---|
518 | |
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519 | # Draw axis cylinder |
---|
520 | qobj = gluNewQuadric(); |
---|
521 | gluCylinder(qobj, self.r_cyl, self.r_cyl, self.l_cyl, 15, 5); |
---|
522 | |
---|
523 | glTranslate(0, 0, self.z+self.l_cyl) |
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524 | |
---|
525 | # Draw cone of the arrow |
---|
526 | glutSolidCone(self.r_cone, self.l_cone, 30, 5) |
---|
527 | |
---|
528 | # Translate back to original position |
---|
529 | glTranslate(-self.x, -self.y, -self.z) |
---|
530 | glPopMatrix() |
---|
531 | |
---|
532 | class Cone(BaseShape): |
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533 | """ |
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534 | Conical shape |
---|
535 | """ |
---|
536 | def __init__(self, x=0, y=0, z=0, radius=0.5, height=1): |
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537 | BaseShape.__init__(self, x, y, z) |
---|
538 | self.radius = radius |
---|
539 | self.height = height |
---|
540 | |
---|
541 | def draw(self): |
---|
542 | glPushMatrix() |
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543 | glTranslate(self.x, self.y, self.z) |
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544 | glutSolidCone(self.radius, self.height, 30, 5) |
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545 | self._rotate() |
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546 | glTranslate(-self.x, -self.y, -self.z) |
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547 | glPopMatrix() |
---|
548 | |
---|
549 | class Sphere(BaseShape): |
---|
550 | """ |
---|
551 | Spherical shape |
---|
552 | """ |
---|
553 | def __init__(self, x=0, y=0, z=0, radius=10.0): |
---|
554 | BaseShape.__init__(self, x, y, z) |
---|
555 | self.name = 'sphere' |
---|
556 | self.params['radius'] = radius |
---|
557 | self.details['radius'] = 'A' |
---|
558 | |
---|
559 | def get_volume(self): |
---|
560 | return 4.0/3.0*math.pi*self.params['radius']*self.params['radius']*self.params['radius'] |
---|
561 | |
---|
562 | def get_length(self): |
---|
563 | return 2.0*self.params['radius'] |
---|
564 | |
---|
565 | def draw(self): |
---|
566 | self._pre_draw() |
---|
567 | glPushMatrix() |
---|
568 | glTranslate(self.x, self.y, self.z) |
---|
569 | #glutSolidSphere(self.params['radius'], 30, 30) |
---|
570 | qobj = gluNewQuadric(); |
---|
571 | #gluQuadricDrawStyle(qobj,GLU_SILHOUETTE) |
---|
572 | gluSphere(qobj,self.params['radius'], 30, 30) |
---|
573 | glTranslate(-self.x, -self.y, -self.z) |
---|
574 | glPopMatrix() |
---|
575 | glLight(GL_LIGHT0, GL_DIFFUSE, DEFAULT_COLOR) |
---|
576 | |
---|
577 | def accept(self, visitor): |
---|
578 | return visitor.fromSphere(self) |
---|
579 | |
---|
580 | def accept_update(self, visitor): |
---|
581 | return visitor.update_sphere(self) |
---|
582 | |
---|
583 | class Cylinder(BaseShape): |
---|
584 | """ |
---|
585 | Cylinder shape, by default the cylinder is oriented along |
---|
586 | the z-axis. |
---|
587 | |
---|
588 | The reference point of the cylinder is the center of the |
---|
589 | bottom circle. |
---|
590 | """ |
---|
591 | def __init__(self, x=0, y=0, z=0, radius=10.0, length=100.0): |
---|
592 | BaseShape.__init__(self, x, y, z) |
---|
593 | self.name = 'cylinder' |
---|
594 | self.params['radius'] = radius |
---|
595 | self.params['length'] = length |
---|
596 | self.details['radius'] = 'A' |
---|
597 | self.details['length'] = 'A' |
---|
598 | |
---|
599 | def get_volume(self): |
---|
600 | return math.pi*self.params['radius']*self.params['radius']*self.params['length'] |
---|
601 | |
---|
602 | def get_length(self): |
---|
603 | if self.params['length']>2.0*self.params['radius']: |
---|
604 | return self.params['length'] |
---|
605 | else: |
---|
606 | return 2.0*self.params['radius'] |
---|
607 | |
---|
608 | def draw(self): |
---|
609 | self._pre_draw() |
---|
610 | glPushMatrix() |
---|
611 | |
---|
612 | glTranslate(self.x, self.y, self.z) |
---|
613 | self._rotate() |
---|
614 | qobj = gluNewQuadric(); |
---|
615 | # gluCylinder(qobj, r_base, r_top, L, div around z, div along z) |
---|
616 | gluCylinder(qobj, self.params['radius'], self.params['radius'], self.params['length'], 15, 5); |
---|
617 | |
---|
618 | glTranslate(-self.x, -self.y, -self.z) |
---|
619 | glPopMatrix() |
---|
620 | glLight(GL_LIGHT0, GL_DIFFUSE, DEFAULT_COLOR) |
---|
621 | |
---|
622 | def accept(self, visitor): |
---|
623 | return visitor.fromCylinder(self) |
---|
624 | |
---|
625 | def accept_update(self, visitor): |
---|
626 | return visitor.update_cylinder(self) |
---|
627 | |
---|
628 | # Fill the shape list |
---|
629 | SHAPE_LIST.append(dict(name='Sphere', id=wx.NewId(), cl=Sphere)) |
---|
630 | SHAPE_LIST.append(dict(name='Cylinder', id=wx.NewId(), cl=Cylinder)) |
---|
631 | |
---|
632 | def getShapes(): |
---|
633 | """ |
---|
634 | Returns a list of all available shapes |
---|
635 | """ |
---|
636 | return SHAPE_LIST |
---|
637 | |
---|
638 | def getShapeClass(id): |
---|
639 | """ |
---|
640 | Returns a child class of BaseShape corresponding |
---|
641 | to the supplied shape ID. |
---|
642 | @param id: shape ID number |
---|
643 | """ |
---|
644 | def f(s): return s['id']==id |
---|
645 | if SHAPE_LIST is not None: |
---|
646 | shape = filter(f, SHAPE_LIST) |
---|
647 | return shape[0]['cl'] |
---|
648 | return None |
---|
649 | |
---|
650 | def getShapeClassByName(name): |
---|
651 | """ |
---|
652 | Returns a child class of BaseShape corresponding |
---|
653 | to the supplied shape name. |
---|
654 | @param name: shape name |
---|
655 | """ |
---|
656 | def f(s): return s['name']==name |
---|
657 | if SHAPE_LIST is not None: |
---|
658 | shape = filter(f, SHAPE_LIST) |
---|
659 | return shape[0]['cl'] |
---|
660 | return None |
---|