Visualization in MaGe/Geant4

Transcription

1 Max-Planck-Institute for Physics MaGe Workshop 2010, Munich January 18, 2010

2 , or Ways to see what you do Max-Planck-Institute for Physics MaGe Workshop 2010, Munich January 18, 2010

3 Examples

4 Outle

5 Outle visualization

6 Outle visualization Examples of command sequences

7 Outle visualization Examples of command sequences More detailed formation on: /HepRApp/Wired Extra of

8 This presentation gives a basic formation on how to visualize a detector and/or an experiment usg the standard Geant.

9 This presentation gives a basic formation on how to visualize a detector and/or an experiment usg the standard Geant. Why do we need this?

10 This presentation gives a basic formation on how to visualize a detector and/or an experiment usg the standard Geant. Why do we need this? To see (before event simulation) the detector, it s geometry and possible overlaps;

11 This presentation gives a basic formation on how to visualize a detector and/or an experiment usg the standard Geant. Why do we need this? To see (before event simulation) the detector, it s geometry and possible overlaps; To see (after the simulation is done) tracks, hits, energy deposits etc.

12 This presentation gives a basic formation on how to visualize a detector and/or an experiment usg the standard Geant. Why do we need this? To see (before event simulation) the detector, it s geometry and possible overlaps; To see (after the simulation is done) tracks, hits, energy deposits etc. Even for more terestg thgs (not really useful but nice). Later on this...

13 Ways to visualize Geant4 There are 8 ways to visualize (accordg to the Geant4 manual):

14 Ways to visualize Geant4 There are 8 ways to visualize (accordg to the Geant4 manual): 1 2 Qt 3 OpenInventor 4 5 DAWN 6 VRML 7 RayTracer 8 ASCIITree

15 Ways to visualize Geant4 There are 8 ways to visualize (accordg to the Geant4 manual): 1 2 Qt 3 OpenInventor 4 5 DAWN 6 VRML 7 RayTracer 8 ASCIITree and one as a separate tool (cluded to Geant4.9.2 but implemented MaGe) 1 + ROOT

16 Ways to visualize Geant4 There are 8 ways to visualize (accordg to the Geant4 manual): 1 * 2 Qt 3 OpenInventor 4 * 5 DAWN 6 VRML 7 RayTracer 8 ASCIITree * and one as a separate tool (cluded to Geant4.9.2 but implemented MaGe) 1 + ROOT * * Covered this presentation

17 visualization

18 visualization is done macro/command le of MaGe after the detector was defed and the /run/itialize command executed so Geant4 command le activated. Further steps are:

19 visualization is done macro/command le of MaGe after the detector was defed and the /run/itialize command executed so Geant4 command le activated. Further steps are: Open a visualization driver, such as: /vis/open File [OGLIX, RayTracer]

20 visualization is done macro/command le of MaGe after the detector was defed and the /run/itialize command executed so Geant4 command le activated. Further steps are: Open a visualization driver, such as: /vis/open File [OGLIX, RayTracer] Add the detector geometry /vis/drawvolume

21 visualization is done macro/command le of MaGe after the detector was defed and the /run/itialize command executed so Geant4 command le activated. Further steps are: Open a visualization driver, such as: /vis/open File [OGLIX, RayTracer] Add the detector geometry /vis/drawvolume If usg an immediate viewer, such as, set camera parameters and drawg style (wireframe/surface): /vis/viewer/set/style wireframe /vis/viewer/set/viewpotthetaphi 70 20

22 visualization is done macro/command le of MaGe after the detector was defed and the /run/itialize command executed so Geant4 command le activated. Further steps are: Open a visualization driver, such as: /vis/open File [OGLIX, RayTracer] Add the detector geometry /vis/drawvolume If usg an immediate viewer, such as, set camera parameters and drawg style (wireframe/surface): /vis/viewer/set/style wireframe /vis/viewer/set/viewpotthetaphi Declare what data should be added to the scene (default is to just add full set of detector volumes) /vis/scene/add/trajectories /vis/scene/add/hits

23 visualization Run simulation with appropriate options to store trajectory formation: /run/beamon 1

24 visualization Run simulation with appropriate options to store trajectory formation: /run/beamon 1 Execute the visualization (done automatically with each /run/beamon, but needed by some drivers if you want to output geometry without runng an event): /vis/viewer/flush

25 visualization Run simulation with appropriate options to store trajectory formation: /run/beamon 1 Execute the visualization (done automatically with each /run/beamon, but needed by some drivers if you want to output geometry without runng an event): /vis/viewer/flush If usg an external viewer, such as for File: import the.heprep file to HepRApp/Wired, set camera parameters, drawg style, etc., view the visualization

26 Example Command Sequences Visualize a detector (Lux or Mac) /vis/open OGLIX /vis/drawvolume Visualize trajectories and hits for 10 events usg /HepRApp /vis/open File /vis/drawvolume /vis/scene/add/trajectories /vis/scene/add/hits /run/beamon 10

27 (Geometry Description Markup Language)

28 3.0 + ASCIITree + ROOT example sequence Open ASCIITree driver and create geometry tree /vis/open ATree /vis/asciitree/verbose 1 /vis/drawtree Set up format: filename, output format and levels to modularize (see manual): /MG/geometry//outputName GerdaArray /MG/geometry//outputFormat false /MG/geometry//modularizeLevels Dump geometry to files /MG/geometry//write Import geometry to ROOT gsystem->load("libgeom"); gsystem->load("libgdml"); TGeoManager::Import("GerdaArray.gdml"); ggeomanager->gettopvolume()->draw();

29 (Geometry Description Markup Language) Advantages: Possibility to view each part of the detector separately e.g. ROOT (usg ROOT macro) You can write AND read the geometry to/from file (based on the XML language)

30 (Geometry Description Markup Language) Advantages: Possibility to view each part of the detector separately e.g. ROOT (usg ROOT macro) You can write AND read the geometry to/from file (based on the XML language) Disadvantages: is cluded Geant4.9.2 and later releases so there appeared number of compatibilities MaGe (way of readg/writg files was changed) - to be discussed durg the Computg Session Creatg geometry for older releases of (version <= 2.10) does not mean that it will be read by Geant4-

31 HepRApp/Wired ()

32 HepRApp/Wired () It is fast and simple way to see the detector.

33 HepRApp/Wired () It is fast and simple way to see the detector. Advantages: Flexible view of the detector, easy control: zoom/rotate usg mouse; Many visual options; Easy manual creation of.eps files

34 HepRApp/Wired () It is fast and simple way to see the detector. Advantages: Flexible view of the detector, easy control: zoom/rotate usg mouse; Many visual options; Easy manual creation of.eps files Disadvantages: Rather slow when rotatg a complicated geometry; Not a better way of makg high-quality pictures (i.e. for Posters or Technical Design Report)

35

36 Advantages: Can be viewed directly Geant4; Uses a video graphic card so it is much faster way than the others.

37 Advantages: Can be viewed directly Geant4; Uses a video graphic card so it is much faster way than the others. Disadvantages(read as: ): You need a good graphic card and correctly stalled driver for this! All movements of the detector/camera should be assigned macro/command le, no mouse control available

38 Advantages: Can be viewed directly Geant4; Uses a video graphic card so it is much faster way than the others. Gives extra possibilities. See next slide... Disadvantages(read as: ): You need a good graphic card and correctly stalled driver for this! All movements of the detector/camera should be assigned macro/command le, no mouse control available

39 Creatg a movie with Not really useful, but very fascatg. What can we see motion:

40 Creatg a movie with Not really useful, but very fascatg. What can we see motion: Rotatg detector;

41 Creatg a movie with Not really useful, but very fascatg. What can we see motion: Rotatg detector; Zoomg detector;

42 Creatg a movie with Not really useful, but very fascatg. What can we see motion: Rotatg detector; Zoomg detector; Particle tracks;

43 Creatg a movie with Not really useful, but very fascatg. What can we see motion: Rotatg detector; Zoomg detector; Particle tracks; Particle showers

44 Creatg a movie with Not really useful, but very fascatg. What can we see motion: Rotatg detector; Zoomg detector; Particle tracks; Particle showers See the movie about GERDA...

45 How to create a movie usg (OGLX) Here is my way described. As reported geant4 presentations (see references) there is easier way to do this.

46 How to create a movie usg (OGLX) Here is my way described. As reported geant4 presentations (see references) there is easier way to do this. Put some loop to macro at the very end: RunGerda.mac: /control/loop movie.loop phi loop over φ = with step 5 degrees movie.loop: /vis/viewer/set/viewpotthetaphi 30 {phi} /vis/ogl/prteps

47 How to create a movie usg (OGLX) Here is my way described. As reported geant4 presentations (see references) there is easier way to do this. Put some loop to macro at the very end: RunGerda.mac: /control/loop movie.loop phi loop over φ = with step 5 degrees movie.loop: /vis/viewer/set/viewpotthetaphi 30 {phi} /vis/ogl/prteps Convert all.eps to.yuv files, create conversion macro for mpeg2encode and encode pictures to video file. See the reference for details.

48 How to create a movie usg (OGLX) Have you seen Time Warp show on Discovery Channel?

49 How to create a movie usg (OGLX) Have you seen Time Warp show on Discovery Channel? See slowed down motion of the particles (for free!)...

50 Conclusions

51 Conclusions There are plenty of ways to visualize the detector, use the way you like

52 Conclusions There are plenty of ways to visualize the detector, use the way you like Each method has Advantages and Disadvantages

53 Conclusions There are plenty of ways to visualize the detector, use the way you like Each method has Advantages and Disadvantages There are other also good ways not covered this presentation (DAWN, RayTracerX etc.). Try them

54 Conclusions There are plenty of ways to visualize the detector, use the way you like Each method has Advantages and Disadvantages There are other also good ways not covered this presentation (DAWN, RayTracerX etc.). Try them If you are a geek you have much space to fulfil your needs. Just use your imagation *

55 Acknowledgements Thanks to Joseph Perl from SLAC (I took his presentations materials while creatg my talk)

56 References HepRApp Tutorial Tutorial manual Geant4 Commands (and.pdf) Geant4 Advanced (and.pdf) How to Make a Movie (and.pdf) Chapter of the Geant4 User s Guide for Application Developers Movies and other useful manuals and tutorials