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112 lines
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112 lines
4.6 KiB
Markdown
| [Home](/trick) → [Tutorial Home](Tutorial) → Plotting Recorded Data |
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<a id=viewing-recorded-data></a>
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## Viewing Recorded Data
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To view recorded data, Trick provides an application called **quick plot**.
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**NOTE:** The GUI or plot graph figures may be shown differently on your
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machine due to the differences of the platforms and ongoing changes.
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### Using Trick Quick Plot
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Begin by launching trick-dp (trick data products GUI).
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```bash
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% cd $HOME/trick_sims/SIM_cannon_analytic
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% trick-dp &
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```
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#### Plotting Time -vs- Position
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1. Double click the pathname containing your sim directory (or single
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click the symbol next to the name)
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1. Double click the `SIM_cannon_analytic` name in the Sims/Runs pane.
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This will reveal the `RUN_test` directory.
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1. Double click the `RUN_test` name. This will bring `RUN_test` into
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the RUN Selections pane below.
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1. Click the blue lightning button in the tool bar to launch quick
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plot (qp). The qp GUI will pop up.
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1. In qp, right click the `dyn.cannon.pos[0-1](m)` variable in the
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left pane and choose **Expand var**. Next double click `dyn.cannon.pos[0](m)`.
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This sets up qp to create one page with one plot (time -vs- pos[0]).
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1. Now click the `dyn.cannon.pos[1]` variable and drag it to the pane
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on the right. Drop it on the line with "Page" (see the white-n-black window
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looking icon). This will result in one page containing two plots.
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1. In qp, click the plain white sheet icon located on the toolbar. A
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single window with two plots should pop up. (See Figure 4)
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1. When you are done with the plots you created, close the **Trick
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Plot** window which will also close the window with your plot(s).
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**Figure 4 - Quick Plot Time -vs- Position**
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#### Plotting XPosition -vs- YPosition
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1. Right click "Plots" in the "DP Content" pane and choose
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"Remove All Pages".
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1. Double click dyn.cannon.pos[1].
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1. Drag-n-drop the dyn.cannon.pos[0] variable over
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the sys.exec.out.time variable in the Plot located in the "DP Content" pane. You
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will be asked to confirm the replacement. Click "Ok".
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1. To see the plot, click the white sheet icon on the toolbar. Voila!
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There is the trajectory! :-) Note that the cannonball goes underground. This
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will be fixed later.
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1. When you are done, close the **Trick Plot** window.
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**Figure 5 - Quick Plot X -vs- Y Position**
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#### Creating a DP Specification File
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Repeatedly clicking variables in Trick QP gets old, fast. To get around this,
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the information needed for this plot will be saved to a file named
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`DP_cannon_xy`, and then reused by `trick-dp`. This is an important step,
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because extensive use will be made of the `DP_cannon_xy` file.
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1. With the Trick QP GUI still up and the x -vs- y position still
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chosen, click the `dyn.cannon.pos[1]` variable located in the pane on the right
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(in the DP Content pane). The variable should be highlighted. The **Y Var**
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notebook page should be visible in the lower right pane.
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1. In the **Y Var** notebook page, select **Symbol Style->Square**
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from the drop-down menu.
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1. In the **Y Var** notebook page, select **Symbol Size->Tiny** from
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the drop-down menu.
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1. Click the **Apply Change** button (you may have to scroll up to
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see the button).
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1. Save this information by clicking the menu option **File->Save As**.
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Click **New Folder** button to create the `DP_Product` folder. Choose the
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directory button `SIM_cannon_analytic/DP_Product`. Enter file name as `DP_cannon_xy`.
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1. Close the **Trick QP** GUI, but keep Trick DP up and running.
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#### Using trick-dp To View Data
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Now that `DP_cannon_xy` has been saved, the data can be viewed with trick-dp.
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1. Assuming the **Trick DP** is still up and running from the
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previous steps, click **Session->Refresh…** to reveal `DP_cannon_xy.xml` in
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the top right pane, **DP Tree**.
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1. Make sure that `Sims/Runs->SIM_cannon_analytic/RUN_test` shows up
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in the **Run Selections** pane. If not, then double click it to add it.
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1. Choose the `DP_cannon_xy.xml` in the top right pane by double
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clicking it. This will bring the `DP_cannon_xy.xml` into the **DP Selections** pane.
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1. To see the trajectory again, click the plain white single sheet
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button on the toolbar. Zoom in by holding the middle mouse button and drag
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across a section of the plot. Then release the mouse button. Notice that there
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is a tiny square on each x-y point recorded.
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1. Once you are finished with the plot, close the **Trick Plot**
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window and Trick DP.
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**Figure 6 Zoomed X -vs- Y Position - `DP_cannon_xy`**
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---
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[Next Page](ATutRunningRealtime)
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