Geant 4 GUIVis updates John Allison Geant 4

Geant 4 GUI/Vis updates John Allison Geant 4 Space Users Workshop University of Surrey 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 1

New in Geant 4 10. 3 • • Qt improvements Open. GL drawing speed (/vis/ogl/flush. At) /vis/viewer/interpolate. . . …and some future developments 12 Oct 2016 John Allison -- Geant 4 -- a simulation toolkit 2

Qt is our flagship ! • Need Qt driver ? • install Qt (see https: //www. qt. io) – Qt 5. 8 is current • CMake option: – GEANT 4_USE_QT 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 3

Qt is our flagship ! 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 4

Qt icons • Set icons by default at startup - configurable 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 5

More about Qt • Mouse-driven rotation – Default changed to “free. Rotation” for Qt • “Google-like” rotation – “more natural”? – Other drivers and Qt before 10. 3 • up vector is preserved – “detectors look natural”? – Can be changed with • /vis/viewer/set/rotation. Style constrain. Up. Direction • /vis/viewer/set/rotation. Style free. Rotation 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 6

Auto completion in Qt Auto completion of Geant 4 command by matching command or directory 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 7

Open. GL drawing speed • The old default was to flush every volume and component of every trajectory to screen immediately – This is very expensive (gl. Flush) • Old workaround (<=10. 2) – /vis/ogl/set/events. Draw. Interval 999999 • Improves speed of drawing dramatically (× 100 – × 1000) • May have to wait for trajectories to appear on screen for complex events • All primitives are flushed to the screen at end of event anyway. • New command – /vis/ogl/flush. At <options> <N> • • • 10 -12 April 2017 options: end. Of. Event end. Of. Run each. Primitive Nth. Event never Default: end. Of. Event 100 Perhaps best option is: never Geometry is always flushed at end of detector drawing anyway Events are always flushed at end of event anyway John Allison -- G 4 Space Users Workshop University of Surrey April 2017 8

Interpolation of saved views • Save a sequence of views – with or without events (trajectories) – for each view: /vis/viewer/save – view parameters are saved to a sequence of files • g 4_00. view, g 4_01. view, etc. • /vis/viewer/interpolate – with or without the same or different events • /vis/viewer/interpolate ! ! export – produces G 4 Open. GL_viewer-0_nnnn. pdf (default 50 per saved view) – make a movie with i. Movie, for example • set “duration” of each file to 0. 1 s (this seems to be the minimum) • play it back at × 2 or × 4 • See https: //drive. google. com/file/d/0 BAys. Spq 22 hu. RUth. Smx 3 b. C 03 Ukk/view? usp=sharing 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 9

Interpolation of saved views Video 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 10

Future developments 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 11

Other drivers ? (from our workplan) • G 4 DAE exporter: Creation of a new driver in order to export/import Collada format – « COLLADA defines an XML Namespace and database schema to make it easy to transport 3 D assets between applications without loss of information, enabling diverse 3 D authoring and processing tools to be combined into a content production pipeline. » • Supported by many softwares: – 3 ds Max (Collada. Max) / Adobe Photoshop/ Allplan/ Artios. CAD/ Blender/ Bryce/ Carrara/ Cheddar Cheese Press (model processor)/ Chief Architect Software/ Cinema 4 D (MAXON)/ City. Engine/ City. Scape/ Clara. io/ DAZ Studio/ Delphi/ E-on Vue 9 x. Stream/ Esko Studio/ Free. CAD/ Form. Z/ GPure/ Houdini (Side Effects Software)/ i. Books Author/ Light. Wave 3 D (v 9. 5)/ Make. Human/ Maya (Collada. Maya)/ Mesh. Lab/ Mobile Model Viewer (Android)/ Modo/ Open. RAVE/ Poser Pro (v 7. 0)/ Presagis Creator/ Robot Operating System/ SAP Visual Enterprise Author/ Shade 3 D (E Frontier, Mirye)/ Softimage|XSI/ Strata 3 D/ Ürban PAD/ Vectorworks/ Visual 3 D Game Development Tool for Collada scene and model viewing, editing, and exporting/ Wings 3 D/ Xcode (v 4. 4) / Laurent Garnier - OSUR / Geant 4 Collaboration Meeting - 12 Sept 2016 - Ferrara 12

Other drivers ? (from our workplan) • PDF 3 D driver - Universal 3 D (U 3 D) – The format is natively supported by the PDF format and 3 D objects in U 3 D format can be inserted into PDF documents and interactively visualized by Acrobat Reader (since version 7). – Supported by many sofwares: • Adobe Acrobat / Adobe Photoshop CS 3, CS 4 and CS 5 Extended / Archi. CAD/ Bluebeam Revu/ DAZ Studio/ i. Text/ Jreality/ Mesh. Lab/ Me. Vis. Lab/ Micro. Station/ Poser 7/ Autodesk Inventor/ Solid. Works/ Artios. CAD/ Sim. Lab Composer/ Space. Claim/ SAP VE Author • VTK for Para. View – in the works Laurent Garnier - OSUR / Geant 4 Collaboration Meeting - 12 Sept 2016 - Ferrara 13

That’s it… …but Other Recent Developments from last year’s Collaboration Meeting are attached… 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 14

Other recent developments • • • Improved command guidance Magnetic field drawing Multi-threading Turning off vis (/vis/disable) Keeping and reviewing events Showing components of logical volume (/vis/specify) Printing geometry heirarchy (/vis/draw. Tree) Changing vis attributes (/vis/geometry/…) Selecting touchables • G 4 Orb, G 4 Sphere, G 4 Torus and G 4 Ellipsoid – drawn with all lines (not just edges) in wireframe mode • Trajectory drawing by encountered volume 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 15

Improved command guidance • Use “help” – on command line or “Help” pull-down menu in Qt – or browse ADG Section 7. 1 • This is where to go for information and documentation!!!!! – nowhere else!!!!! • Just one example (next slide): – /vis/scene/add/volume – (Shows a way of getting a cutaway view) 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 16

/vis/scene/add/volume Command /vis/scene/add/volume Guidance : Adds a physical volume to current scene, with optional clipping volume. If physical-volume-name is "world" (the default), the top of the main geometry tree (material world) is added. If "worlds", the top of all worlds - material world and parallel worlds, if any – are added. Otherwise a search of all worlds is made, taking the first matching occurence only. To see a representation of the geometry hierarchy of the worlds, try "/vis/draw. Tree [worlds]" or one of the driver/browser combinations that have the required functionality, e. g. , Hep. Rep. If clip-volume-type is specified, the subsequent parameters are used to define a clipping volume. For example, "/vis/scene/add/volume ! ! ! -box km 0 1 0 1" will draw the world with the positive octant cut away. (If the Boolean Processor issues warnings try replacing 0 by 0. 00001 or something. ) If clip-volume-type is prepended with '-', the clip-volume is subtracted (cutaway). (This is the default if there is no prepended character. ) If '*' is prepended, the intersection of the physical-volume and the clip-volume is made. (You can make a section/DCUT with a thin box, for example). For "box", the parameters are xmin, xmax, ymin, ymax, zmin, zmax. Only "box" is programmed at present. John Allison -- G 4 Space Users Workshop 10 -12 April 2017 University of Surrey April 2017 17

Magnetic field drawing • /vis/scene/add/magnetic. Field – simple arrows 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 18

Multi-threading • Worker threads put the event in a queue for drawing by a special vis thread • Queue can easily get full • the default is to hold up the worker threads • you can ask for events to be discarded (you then see just a sample) – /vis/multithreading/action. On. Event. Queue. Full • you can increase the queue size – /vis/multithreading/max. Event. Queue. Size 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 19

Turning off visualisation • /vis/disable You may wish to disable trajectory production too: "/tracking/store. Trajectory 0" but don't forget to re-enable with “/vis/enable” "/tracking/store. Trajectory 2" (for your case). • /tracking/store. Trajectory 0 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 20

Keeping and reviewing events • In Stepping. Action or Sensitive. Detector: : Process. Hits or anywhere – event->Keep. The. Event () or – G 4 Event. Manager: : Keep. The. Current. Event() • If this is for rare events – /vis/disable • Then at end of run – /vis/review. Kept. Events 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 21

/vis/specify <logical-volume-name> 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 22

/vis/draw. Tree • restores original view • default changed to show logical volume names • help message appears only once G 4 ASCIITree. Scene. Handler: : Begin. Modeling: writing to G 4 standard output (G 4 cout) … # Now printing with verbosity 1 # Format is: PV: n / LV (SD, RO) # Abbreviations: PV = Physical Volume, LV = Logical Volume, # SD = Sensitive Detector, RO = Read Out Geometry. "world. Physical": 0 / "world. Logical" "magnetic. Physical": 0 / "magnetic. Logical" "first. Arm. Physical": 0 / "first. Arm. Logical" "hodoscope 1 Physical": 0 -14 / "hodoscope 1 Logical" (SD="hodoscope 1") "chamber 1 Physical": 0 / "chamber 1 Logical" "wire. Plane 1 Physical": 0 / "wire. Plane 1 Logical" (SD="chamber 1") … John Allison -- G 4 Space Users Workshop 10 -12 April 2017 University of Surrey April 2017 23

/vis/geometry commands • Set vis attributes of logical volumes • From examples/basic/B 1/vis. mac /vis/geometry/set/visibility World 0 false /vis/geometry/set/visibility Envelope 0 false 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 24

Selecting touchables • Set vis attributes of touchables • Set touchable /vis/set/touchable World 0 Envelope 0 Shape 1 0 • Set vis attribute /vis/touchable/set/force. Aux. Edge. Visible /vis/touchable/set/line. Segments. Per. Circle 36 /vis/touchable/set/colour cyan • Visibility and colour can be done with Qt Scene tree – a good way to get path – /control/verbose 2 – click in scene tree 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 25

G 4 Orb, G 4 Sphere, G 4 Torus and G 4 Ellipsoid default drawing • By default auxiliary edges will be drawn – This ensures they are visible in wireframe • (They are solids that may not have real edges so currently there is the possibility that they are invisible in wireframe mode) 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 26

Drawing/filtering by encountered volume • • • /vis/scene/add/trajectories rich /vis/modeling/trajectories/create/draw. By. Encountered. Volume /vis/modeling/trajectories/draw. By. Encountered. Volume-0/set Shape 1 cyan 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 27

Thanks ! 10 -12 April 2017 John Allison -- G 4 Space Users Workshop University of Surrey April 2017 28