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Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
hepsim:usage_truth [2017/02/07 21:55] hepsim17 [Using C++/ROOT] |
hepsim:usage_truth [2020/05/21 23:31] hepsim17 |
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[[http:// | [[http:// | ||
- | to reconstruct | + | for plotting |
Many HepSim MC samples include *.py scripts to calculate differential cross sections. You can run | Many HepSim MC samples include *.py scripts to calculate differential cross sections. You can run | ||
them using downloaded ProMC files (in which case you pass the directory with *promc files as an argument). | them using downloaded ProMC files (in which case you pass the directory with *promc files as an argument). | ||
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In this case, data will be streamed to computer' | In this case, data will be streamed to computer' | ||
+ | You can create plots using a number of programming languages, Java, Python, C++, Ruby, Groovy etc. Plots can be done on any platform, without modifying your system. C++ analysis programs require ROOT and Linux. | ||
- | You can create plots using a number of programming languages, Java, Python, C++, Ruby, Groovy etc. Plots can be done on any platform, without modifying your system. C++ analysis programs require ROOT and Linux. | + | Below we will discuss how to analyse |
- | + | ||
- | Below we will discuss how to analyse | + | |
platform (Linux, Mac, Windows) and does not require installation of any platform-specific program. | platform (Linux, Mac, Windows) and does not require installation of any platform-specific program. | ||
- | As before, make sure that [[http:// | + | As before, make sure that [[http:// |
- | ===== Method I. Running in a batch mode without downloaded ProMC files ===== | + | ====== Streaming over the network |
You can run validation scripts in a batch mode as: | You can run validation scripts in a batch mode as: | ||
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</ | </ | ||
- | Another approach is to use [[http:// | + | Another approach is to use [[http:// |
give more flexibility and more libraries for analysis. | give more flexibility and more libraries for analysis. | ||
- | In this example, we will run a Python script that downloads data from URL into the computer memory | + | In this example, we will run a Python script that downloads data from URL into the computer memory |
Here is how to process the analysis using [[http:// | Here is how to process the analysis using [[http:// | ||
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Look at the " | Look at the " | ||
- | Similarly, you can use a more complex [[http://jwork.org/ | + | Similarly, you can use a more complex [[https://datamelt.org|DataMelt]]: |
<code bash> | <code bash> | ||
wget -O dmelt.zip http:// | wget -O dmelt.zip http:// | ||
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</ | </ | ||
- | If you want to see a pop-up canvas with the output histogram on your screen, change the line " | + | If you want to see a pop-up canvas with the output histogram on your screen, change the line " |
- | ===== Method II. Running in a batch mode after downloading | + | |
+ | ====== Using Java WebStart ====== | ||
+ | |||
+ | |||
+ | Many " | ||
+ | |||
+ | To use Java Web Start, you should configure Java permissions: | ||
+ | |||
+ | |||
+ | ====== | ||
The above approach depends on network availability at the time when you do the analysis. | The above approach depends on network availability at the time when you do the analysis. | ||
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Similarly, | Similarly, | ||
- | ===== Method III. Running in a GUI mode ==== | + | |
+ | ====== | ||
You can perform short validation analysis using an editor as: | You can perform short validation analysis using an editor as: | ||
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It will open the Python script for editing. Next, run this script by clicking the image of green running man on the status bar (or press [F8]). | It will open the Python script for editing. Next, run this script by clicking the image of green running man on the status bar (or press [F8]). | ||
- | ===== Method IV. Running in a GUI mode using URL dialog | + | ====== Using GUI URL dialogue ====== |
- | + | If you use DMelt, you can run this code using a more conventional editor: | |
- | + | ||
- | If you use DMelt, you can run this code using | + | |
- | a more conventional editor: | + | |
<code bash> | <code bash> | ||
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< | < | ||
- | {{: | + | {{:hepsim: |
</ | </ | ||
Line 191: | Line 197: | ||
< | < | ||
- | {{: | + | {{:hepsim: |
</ | </ | ||
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< | < | ||
- | {{: | + | {{:hepsim:view3d.py| Python code to show event in 3D}} |
</ | </ | ||
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</ | </ | ||
- | + | Click the event number ('left pannel" | |
- | On the left panel, click on the event and then look at "Event info" | + | |
< | < | ||
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</ | </ | ||
- | Alternatively, | + | Alternatively, |
NLO event record includes 4-momenta of particles and event weights (double values). In addition, deviations form central weights are included as an array of integer values as: | NLO event record includes 4-momenta of particles and event weights (double values). In addition, deviations form central weights are included as an array of integer values as: | ||
- | {{: | + | {{:hepsim: |
You can calculate differential cross sections using online files using this example: | You can calculate differential cross sections using online files using this example: | ||
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</ | </ | ||
- | This example runs " | + | This example runs " |
- | We use DMelt to do the calculations (after updating one jar file). You can also use ROOT/C++ to do the same. | + | |
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====== Converting to LCIO ====== | ====== Converting to LCIO ====== | ||
- | ProMC files can be converted to LCIO files for full detector simulations. | + | ProMC files can be converted to LCIO or STDHEP |
+ | files for full detector simulations. | ||
+ | Note that the converters are included inside the ProMC package (see the directory " | ||
+ | |||
+ | < | ||
<code bash> | <code bash> | ||
wget http:// | wget http:// | ||
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java promc2lcio file.promc file.slcio | java promc2lcio file.promc file.slcio | ||
</ | </ | ||
- | The last commends | + | </ |
+ | |||
+ | The last command | ||
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Many scripts of HepSim create SVG images and a cross platform | Many scripts of HepSim create SVG images and a cross platform | ||
- | [[http://jwork.org/dmelt/wikidoc/doku.php? | + | [[https://handwiki.org/wiki/DMelt:IO/8_Cross_Paltform_IO |
< | < | ||
<code python> | <code python> | ||
- | !/ | + | #!/ |
# Convert jdat to the standard Python | # Convert jdat to the standard Python | ||
# This can be used for converting data to pyROOT | # This can be used for converting data to pyROOT |