1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4OpenGLXmRotationCallbacks.cc,v 1.14 2006/06/29 21:19:56 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-08-01-patch-01 $ |
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29 | // |
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30 | // |
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31 | // Andrew Walkden 16th April 1997 |
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32 | // G4OpenGLXmRotationCallbacks : |
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33 | // Several callback functions used by |
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34 | // elements of the control panel to |
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35 | // rotate the view. |
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36 | |
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37 | #ifdef G4VIS_BUILD_OPENGLXM_DRIVER |
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38 | |
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39 | #include "G4OpenGLXmViewer.hh" |
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40 | |
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41 | #include "G4Scene.hh" |
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42 | #include "G4UImanager.hh" |
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43 | #include "G4ios.hh" |
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44 | |
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45 | void G4OpenGLXmViewer::theta_rotation_callback (Widget w, |
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46 | XtPointer clientData, |
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47 | XtPointer callData) |
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48 | { |
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49 | XmArrowButtonCallbackStruct *cbs = (XmArrowButtonCallbackStruct*) callData; |
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50 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*) clientData; |
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51 | |
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52 | pView->rotate_right = get_boolean_userData (w); |
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53 | |
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54 | if (cbs->reason == XmCR_ARM) { |
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55 | rotate_in_theta (pView, NULL); |
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56 | } else if (cbs->reason == XmCR_DISARM) { |
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57 | XtRemoveTimeOut (pView->rotation_timer); |
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58 | } |
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59 | } |
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60 | |
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61 | void G4OpenGLXmViewer::rotate_in_theta (XtPointer clientData, |
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62 | XtIntervalId* timer_id) |
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63 | { |
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64 | //theta spin stuff here |
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65 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*) clientData; |
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66 | G4double delta_theta; |
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67 | |
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68 | if (pView->fVP.GetLightsMoveWithCamera()) { |
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69 | if (pView->rotate_right) { |
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70 | delta_theta = -((G4double)pView->rot_sens); |
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71 | } else { |
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72 | delta_theta = (G4double)pView->rot_sens; |
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73 | } |
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74 | } else { |
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75 | if (pView->rotate_right) { |
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76 | delta_theta = (G4double)pView->rot_sens; |
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77 | } else { |
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78 | delta_theta = -((G4double)pView->rot_sens); |
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79 | } |
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80 | } |
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81 | delta_theta *= deg; |
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82 | // Rotates by fixed azimuthal angle delta_theta. |
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83 | |
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84 | const G4Vector3D& vp = pView->fVP.GetViewpointDirection ().unit (); |
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85 | const G4Vector3D& up = pView->fVP.GetUpVector ().unit (); |
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86 | const G4Vector3D& zprime = up; |
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87 | G4double cosalpha = up.dot (vp); |
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88 | G4double sinalpha = std::sqrt (1. - std::pow (cosalpha, 2)); |
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89 | G4Vector3D yprime = (zprime.cross (vp)).unit (); |
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90 | G4Vector3D xprime = yprime.cross (zprime); |
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91 | // Projection of vp on plane perpendicular to up... |
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92 | G4Vector3D a1 = sinalpha * xprime; |
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93 | // Required new projection... |
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94 | G4Vector3D a2 = |
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95 | sinalpha * (std::cos (delta_theta) * xprime + std::sin (delta_theta) * yprime); |
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96 | // Required Increment vector... |
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97 | G4Vector3D delta = a2 - a1; |
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98 | // So new viewpoint is... |
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99 | G4Vector3D viewPoint = vp + delta; |
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100 | |
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101 | pView->fVP.SetViewAndLights (viewPoint); |
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102 | |
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103 | pView->SetView (); |
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104 | pView->ClearView (); |
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105 | pView->DrawView (); |
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106 | |
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107 | pView->rotation_timer = XtAppAddTimeOut |
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108 | (pView->app, |
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109 | timer_id == NULL ? 500 : 1, |
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110 | rotate_in_theta, |
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111 | pView); |
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112 | } |
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113 | |
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114 | void G4OpenGLXmViewer::phi_rotation_callback (Widget w, |
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115 | XtPointer clientData, |
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116 | XtPointer callData) |
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117 | { |
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118 | XmArrowButtonCallbackStruct *cbs = (XmArrowButtonCallbackStruct*) callData; |
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119 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*) clientData; |
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120 | |
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121 | pView->rotate_up = get_boolean_userData (w); |
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122 | |
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123 | if (cbs->reason == XmCR_ARM) { |
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124 | rotate_in_phi (pView, NULL); |
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125 | } else if (cbs->reason == XmCR_DISARM) { |
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126 | XtRemoveTimeOut (pView->rotation_timer); |
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127 | } |
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128 | } |
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129 | |
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130 | void G4OpenGLXmViewer::rotate_in_phi (XtPointer clientData, |
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131 | XtIntervalId* timer_id) |
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132 | { |
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133 | //phi spin stuff here |
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134 | G4double delta_alpha; |
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135 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*) clientData; |
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136 | |
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137 | if (pView->fVP.GetLightsMoveWithCamera()) { |
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138 | if (pView -> rotate_up) { |
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139 | delta_alpha = -((G4double)pView->rot_sens); |
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140 | } else { |
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141 | delta_alpha = (G4double)pView->rot_sens; |
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142 | } |
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143 | } else { |
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144 | if (pView -> rotate_up) { |
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145 | delta_alpha = (G4double)pView->rot_sens; |
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146 | } else { |
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147 | delta_alpha = -((G4double)pView->rot_sens); |
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148 | } |
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149 | } |
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150 | |
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151 | delta_alpha *= deg; |
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152 | |
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153 | const G4Vector3D& vp = pView->fVP.GetViewpointDirection ().unit (); |
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154 | const G4Vector3D& up = pView->fVP.GetUpVector ().unit (); |
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155 | |
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156 | const G4Vector3D& xprime = vp; |
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157 | G4Vector3D yprime = (up.cross(xprime)).unit(); |
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158 | G4Vector3D zprime = (xprime.cross(yprime)).unit(); |
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159 | |
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160 | G4Vector3D new_vp = std::cos(delta_alpha) * xprime + std::sin(delta_alpha) * zprime; |
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161 | |
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162 | pView->fVP.SetViewAndLights (new_vp.unit()); |
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163 | |
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164 | if (pView->fVP.GetLightsMoveWithCamera()) { |
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165 | G4Vector3D new_up = (new_vp.cross(yprime)).unit(); |
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166 | pView->fVP.SetUpVector(new_up); |
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167 | } |
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168 | |
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169 | pView->SetView (); |
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170 | pView->ClearView (); |
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171 | pView->DrawView (); |
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172 | |
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173 | pView->rotation_timer = XtAppAddTimeOut |
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174 | (pView->app, |
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175 | timer_id == NULL ? 500 : 1, |
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176 | rotate_in_phi, |
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177 | pView); |
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178 | } |
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179 | |
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180 | void G4OpenGLXmViewer::set_rot_sens_callback (Widget w, |
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181 | XtPointer clientData, |
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182 | XtPointer callData) |
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183 | { |
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184 | XmScaleCallbackStruct *cbs = (XmScaleCallbackStruct*) callData; |
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185 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*) clientData; |
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186 | short dp = -1; |
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187 | G4float ten_to_the_dp = 10.; |
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188 | |
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189 | XtVaGetValues (w, |
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190 | XmNdecimalPoints, &dp, |
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191 | NULL); |
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192 | |
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193 | if (dp == 0) { |
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194 | ten_to_the_dp = 1.; |
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195 | } else if ( dp > 0) { |
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196 | for (G4int i = 1; i < (G4int)dp; i++) { |
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197 | ten_to_the_dp *= 10.; |
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198 | } |
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199 | } else { |
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200 | G4Exception("Bad value returned for dp in set_rot_sens_callback"); |
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201 | } |
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202 | |
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203 | pView->rot_sens = (G4float)(cbs->value) / ten_to_the_dp; |
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204 | } |
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205 | |
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206 | void G4OpenGLXmViewer::set_rot_subject_callback (Widget w, |
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207 | XtPointer clientData, |
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208 | XtPointer) |
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209 | { |
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210 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*)clientData; |
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211 | |
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212 | G4int choice = get_int_userData (w); |
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213 | |
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214 | switch (choice) { |
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215 | case 0: |
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216 | { |
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217 | pView->fVP.SetLightsMoveWithCamera (true); |
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218 | break; |
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219 | } |
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220 | case 1: |
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221 | { |
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222 | pView->fVP.SetLightsMoveWithCamera (false); |
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223 | break; |
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224 | } |
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225 | default: |
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226 | { |
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227 | G4Exception("Unrecognised choice made in set_rot_subject_callback"); |
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228 | } |
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229 | } |
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230 | } |
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231 | |
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232 | void G4OpenGLXmViewer::wobble_callback (Widget w, |
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233 | XtPointer, |
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234 | XtPointer) |
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235 | { |
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236 | G4OpenGLXmViewer* pView; |
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237 | |
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238 | XtVaGetValues (w, |
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239 | XmNuserData, &pView, |
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240 | NULL); |
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241 | |
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242 | pView->original_vp = pView->fVP.GetViewpointDirection(); |
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243 | pView->wobble_timer = XtAppAddTimeOut |
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244 | (pView->app, |
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245 | (long unsigned int) (1000. * (1. / pView->wob_sens)), |
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246 | wobble_timer_callback, |
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247 | pView); |
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248 | } |
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249 | |
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250 | void G4OpenGLXmViewer::wobble_timer_callback (XtPointer clientData, |
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251 | XtIntervalId*) |
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252 | { |
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253 | G4OpenGLXmViewer* pView = (G4OpenGLXmViewer*)clientData; |
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254 | const G4Vector3D& up = pView->fVP.GetUpVector(); |
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255 | G4Vector3D third_axis = up.cross(pView->original_vp); |
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256 | G4double pi_div_by_ten = pi / 10.0; |
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257 | G4Vector3D d_up = 0.1 * (std::sin ((G4double)pView->frameNo * pi_div_by_ten * 2.)) * up; |
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258 | G4Vector3D d_third_axis = 0.1 * (std::sin ((G4double)pView->frameNo * (pi_div_by_ten))) * third_axis; |
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259 | |
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260 | pView->fVP.SetViewAndLights (pView->original_vp + d_up + d_third_axis); |
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261 | |
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262 | pView->SetView (); |
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263 | pView->ClearView (); |
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264 | pView->DrawView (); |
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265 | |
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266 | if (pView->frameNo++ == 20) { |
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267 | if (pView->wobble_timer) { |
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268 | XtRemoveTimeOut (pView->wobble_timer); |
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269 | pView->frameNo = 0; |
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270 | pView->fVP.SetViewAndLights (pView->original_vp); |
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271 | pView->SetView (); |
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272 | pView->ClearView (); |
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273 | pView->DrawView (); |
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274 | } |
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275 | } else { |
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276 | pView->wobble_timer = XtAppAddTimeOut |
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277 | (pView->app, |
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278 | (long unsigned int) (1000. * (1. / pView->wob_sens)), |
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279 | wobble_timer_callback, |
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280 | pView); |
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281 | } |
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282 | } |
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283 | |
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284 | void G4OpenGLXmViewer::reset_callback (Widget w, |
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285 | XtPointer, |
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286 | XtPointer) |
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287 | { |
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288 | |
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289 | G4OpenGLXmViewer* pView; |
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290 | |
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291 | XtVaGetValues (w, |
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292 | XmNuserData, &pView, |
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293 | NULL); |
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294 | |
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295 | pView->fVP.SetCurrentTargetPoint(G4Point3D()); |
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296 | pView->fVP.SetZoomFactor(1.0); |
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297 | pView->fVP.SetDolly(0.0); |
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298 | pView->SetView (); |
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299 | pView->ClearView (); |
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300 | pView->DrawView (); |
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301 | pView->zoom_low = 0.1; |
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302 | pView->zoom_high = 10.0; |
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303 | |
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304 | } |
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305 | #endif |
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