Import Geant4 8.1.0 source tree

examples/extended/visualization/perspective/perspective.g4m

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+# Macro for perspective demonstration.
+
+/control/verbose 2
+#/vis/verbose p
+
+#/vis/open OGLSXm 600x600-0+0
+/vis/open OGLSXm
+
+/vis/scene/create
+#/vis/scene/add/userAction
+/vis/scene/add/userAction -100 100 -100 100 -100 100 m
+/vis/scene/add/axes 0 0 0 1 m
+#/vis/scene/add/scale 10 m
+/vis/sceneHandler/attach
+
+/vis/viewer/set/background white
+/vis/viewer/set/viewpointVector 1 0 0
+/vis/viewer/set/upVector 0 0 1
+/vis/viewer/set/hiddenMarker true
+/vis/viewer/set/projection perspective 45 deg
+/vis/viewer/pan 0 50 cm
+/vis/viewer/dollyTo 241.5 m
+
+# At this point, pull down the rotation and panning control panels and
+# exit to G4vis...
+/vis/viewer/update
+
+/vis/oglxm/set/dolly-high 244 m
+/vis/oglxm/set/dolly-low 240 m
+/vis/oglxm/set/pan-high 1 cm
+/vis/oglxm/set/rotation-high 2 deg
+/perspectiveDemo/optionString x
+
+# To get good behaviour, click on the sliders first.  Then try rotating,
+# panning etc...
+/vis/viewer/update