77 lines
3.5 KiB
Plaintext
77 lines
3.5 KiB
Plaintext
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta name="generator" content="HTML Tidy for HTML5 for Apple macOS version 5.8.0">
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<!-- Copyright Bob Jacobsen 2008 -->
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<title>JMRI: RPS Tracking Frame</title><!--#include virtual="/help/en/parts/Style.shtml" -->
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</head>
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<body>
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<!--#include virtual="/help/en/parts/Header.shtml" -->
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<div id="mBody">
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<div id="mainContent" class="no-sidebar">
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<h1>JMRI: RPS Tracking Frame</h1>
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<a href="../../../../../html/hardware/rps/images/RpsTracker.jpg"><img src=
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"../../../../../html/hardware/rps/images/RpsTracker.jpg" height="248" width="209" class=
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"floatRight" alt="screenshot"></a><br>
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This frame displays a map of the <a href="../../../../../html/hardware/rps/index.shtml">RPS
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system's</a> view of the layout.
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<h2>Display</h2>
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There are two types of things drawn:
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<ul>
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<li>The measured positions and paths of RPS transmitters</li>
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<li>The "detection regions" used for RPS blocks and <a href=
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"../../../../../html/hardware/rps/sensors.shtml">sensors</a>.
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</li>
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</ul>
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<h3>Transmitter Positions</h3>
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When a good position reading is made, it's drawn on the screen as a small circle
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representative of the measurement's accuracy. A line is drawn to this new position from the
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last position.
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<p>Different colors are assigned to different transmitters so you can tell them apart. If you
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"hover" the cursor over a point, a tooltip will pop up that shows you which transmitter was
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seen there and what position was measured.</p>
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<p>Normally, bad measurements are just drawn as points, without connecting them to the next
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measurement via a line. They often carry very large position values, and will result in lines
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running off the panel. If you do want to see them connected, check the "Show error points"
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checkbox.</p>
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<h3>Regions</h3>
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JMRI can keep track of whether a region on the layout contains working RPS transmitters. This
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is used e.g. for the <a href="../../../../../html/hardware/rps/sensors.shtml">RPS sensors</a>
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that are used to control signals.
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<p>These regions are displayed as blocks of color, possibly overlapping.</p>
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<p>To get the exact coordinates of a region, hover the cursor over it. After a short time, a
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tooltip will display the coordinates of the corners.</p>
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<h2>Controls</h2>
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In the top part of the window are some simple controls.
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<ul>
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<li>The "Clear" button erases the transmitter display, leaving the regions visible.</li>
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<li>The "Show error points" checkbox, mentioned above, will include lines to lower-quality
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measurements.</li>
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<li>"Show receivers", when checked, displays receiver locations as slightly larger black
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dots.</li>
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<li>"Show regions" controls whether the regions are drawn or not.</li>
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</ul>
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The four text boxes and "Set" button let you set the coordinate mapping for the window. The
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top two set the RPS position that corresponds to the upper-right corner of the display frame,
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while the lower two set the RPS position that corresponds to the lower left corner. The
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lower-left corner is often set to 0,0, and the upper left set to large enough values to show
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your entire layout, but you don't have to do it like that.
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</div>
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</div>
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<script src="/js/help.js"></script>
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</body>
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</html>
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