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1 | |
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2 | # Creating a memory-mapped tree |
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3 | |
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4 | tree=tf.create() |
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5 | |
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6 | # Creating a histogram factory mapped to the tree |
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7 | |
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8 | hf=af.createHistogramFactory( tree ) |
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9 | |
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10 | # Open an existing HBook file |
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11 | |
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12 | treeHBook=tf.create("gammaraytel.hbook", "hbook", 1, 0 ) |
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13 | |
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14 | # Mounting the hbook tree under the master memory tree. |
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15 | |
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16 | tree.mkdir( "hbook" ) |
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17 | tree.mount( "/hbook", treeHBook, "/" ) |
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18 | |
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19 | # Retrieve histograms and load them into memory: |
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20 | |
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21 | # Fetching the histograms from hbook |
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22 | |
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23 | hE=tree.findH1D( "/hbook/10" ) |
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24 | hPl=tree.findH1D( "/hbook/20" ) |
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25 | hXZ=tree.findH2D("/hbook/30") |
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26 | hYZ=tree.findH2D("/hbook/40") |
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27 | |
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28 | # set plotter to 2*2 zones |
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29 | #pl.createRegions(2,2) |
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30 | #>>> NOTE! ONLY SINGLE REGION IN THIS VERSION! |
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31 | |
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32 | # plot the histograms |
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33 | |
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34 | pr = pl.currentRegion() |
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35 | pr.plot(hE,"") |
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36 | pl.refresh() |
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37 | |
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38 | wait() |
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39 | |
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40 | pr.clear() |
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41 | pr.plot(hPl,"") |
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42 | pl.refresh() |
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43 | |
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44 | wait() |
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45 | |
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46 | del hf |
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47 | del tree |
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48 | del treeHBook |
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49 | exit() |
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50 | |
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51 | |
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52 | |
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53 | |
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54 | |
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55 | |
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56 | |
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57 | |
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