130 lines
10 KiB
Markdown
130 lines
10 KiB
Markdown
---
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task: Configure a trend (chart) component; what each setting does on the desktop and in the HTML display
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version: R1.03
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source: IM 36K10C50-01EN §2.27 (Trend, Tables 2.27-10…28), §2.29 (Micro Trend); IM 36K10R30-01EN §4.8.7; installed web client code (`%TLS_WAP_PATH%\mobileoperator\src\fasttools\ui\components\implementation\charts\`); practiced on CI-Eng-Sample (display CIENG_TrendLab) 2026-10-02
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status: verified (desktop Operator Interface: every row marked ✅/❌ below; HTML display: §6)
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---
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# Trend settings (desktop and web)
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Example: `examples/CI-Eng-Sample/displays/CIENG_TrendLab.xml` (deployed by
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`deploy_displays.cmd`). Method used: change one XML value in the display, deploy, *View >
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Reload* in the client, compare.
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## 1. Before you start
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- **Data**: the trend draws history. `TANK1.LEVEL` / `TANK1.INFLOW` are internal items: after a
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CI Server start they are `NOT INIT` (value 0) until something writes them, and the trend then
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shows nothing (or a bold black line at 0 with status drawing). For tests run
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`displays/trend_feed.ps1` (writes sine waves with `itmval` every 5 s; `-Seconds` = run time).
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- **Reload**: changes in the display file show after *View > Reload*. A reload within a few
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seconds of the deploy can still show the old file — reload again.
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- The **Trend properties** dialog (right-click the trend) and the trend toolbar change the trend
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only for the session; *Save trend as* writes a trend definition to
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`%TLS_WAP_PATH%\cfg\charts\<name>.xml` (same `<chartPanel>` format; factory `Template1..4.xml`).
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The display file holds the start-up settings under `<chart>` › `<config>` › `<chartPanel>`.
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## 2. Pen source (`<pen>` › `<source uri=…>`)
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```
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ci:/item/<Section>.<Tag>[?historygroup=<GROUP>[&aggregationperiod=<PERIOD>]][#<ATTR>]
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```
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| Part | Values | Result (desktop and web the same) |
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|---|---|---|
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| no `historygroup` | — | works; trend picks the highest-priority storage group (here `CIENG_SCAN10S`, seen in table mode); legend without `[group]` |
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| `historygroup=CIENG_EVENT` / `CIENG_SCAN10S` | an item storage group | works; legend `… [GROUP]` |
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| aggregation group without attribute | e.g. `CIENG_AGG` | ❌ `WFL-E-HIS_ITMN` / `ITH-E-NO_ADM_UPD` *Item not defined in group, or group not specified* |
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| aggregation group **with** `aggregationperiod` + `#MAX` | periods `30MIN HOUR SHIFT DAY WEEK MONTH YEAR`; attributes `MAX MIN AVG INT SDV CNT DFSM` | ✅ one flat segment per finished period; legend `… / AGG_MAX 30MIN [CIENG_AGG]` |
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| `#H` `#HH` `#L` `#LL` `#DB` | limit / deadband attributes | ❌ *Record not found* unless the limit history is stored |
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| `uri=""` | — | empty pen |
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`&` must be written `&` in the XML. The *Pen attributes > Attribute[n]* property of the
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component is the same attribute (`ITEM_VALUE`, `AGG_MAX`…): connecting it to an item by mistake
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gives *Short attribute name (<value>) is invalid* (ISS-041 history).
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## 3. Pen settings (`<pen>`)
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| XML | Values | Desktop result |
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|---|---|---|
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| `type` | 0/1 line, 2 bar (no button in the pen panel), 3 stair-step, 4 scatter (squares); **+256** = status drawing: offline / `NOT INIT` parts drawn bold black (256 = Edit Module default = line + status) | ✅ |
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| `color`, `stroke width` | | ✅ |
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| `paint` (fill) `<paint type="paint"><paint type="colorSet" …/></paint>` | | ✅ filled from 0 up, **opaque** (covers other pens); legend symbol filled |
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| `visible` false | | ✅ line hidden **and** removed from legend; tick cleared in the pen panel |
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| `visibleLegend` false / `legendText` | | ✅ hidden from / renamed in the legend |
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| `scaleRangeType` | **0** item scale range (item definition), **1** manual `minimum`/`maximum`, **2** fit to data (with margin; min/max ignored) | ✅ |
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| `procentual` | | ✅ axis 0–100 % of the range, `%` label |
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| `timeShift` | seconds | ✅ data drawn later by that time (overlay of older data) |
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| `axisVisible` | | ✅ value axis (left); clicking a legend entry also shows that pen's axis and thickens the line (hover thickens) |
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| `axisPosition` | 0 left, 1 right | ✅ |
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| `axisColor`, `labelColor` (`<axisColor type="colorSet" r=… g=… b=…/>`, `@NULL` = pen colour) | | ✅ axis + ticks / numbers |
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| `labelRotation` | degrees | ✅ |
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| `majorTickVisible` + `minorTickVisible` false | | removes the numbers too |
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| `title`, `titlePlacement` | | ❌ nothing shown |
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| `majorGridVisible`, `minorGridVisible`, `majorGridColor` | | ✅ horizontal grid in pen colour / given colour |
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| `lowHighLimitGridVisible`, `lowLowHighHighLimitGridVisible` | | ✅ lines at the **item definition** limits |
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| `lowLimit`…`highHighLimit` | | ❌ ignored (item definition limits are used) |
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| `lowHighLimitGridAreaVisible` | | ✅ band L…H in pen colour, **opaque, drawn over the line** |
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| `maximumPens` (chart level) | | ✅ only the first n pens are loaded |
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| `description` | | pen panel shows the **item** description, not this value |
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## 4. Chart settings (`<chartPanel>`)
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| Group | XML | Desktop result |
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|---|---|---|
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| Time range | `<timeRange type="timeRangeLast" count="10"><type type="timeUnit" value="TimeUnitMinute"/></timeRange>`; `timeRangeCurrent` (no count) = current minute/hour/day…; units `TimeUnitMinute Hour Day Week Month Year` | ✅ (*Current hour*: 12:00–13:00, line up to now) |
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| | `updating` true | ✅ runs live when opened (play grey, stop red) |
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| | `updateInterval` (s) | ✅ shown in *Update every* (60 → "1 Minutes") |
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| | `autoUpdateInterval` true | ✅ the *Update every* field disappears |
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| | `fillHistory` false | ✅ empty (all pens red tag) until the first update interval, then filled |
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| | custom range `timeRangeSpecific` (`startTime`/`endTime`) | not tested |
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| Performance | `optimised` true (default) = sample interval by zoom (`cfg\configurations\ChartThresholdTables.xml`) | — |
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| | `optimised` false + `useSampleInterval` true + `sampleInterval` 60 | ✅ one point per 60 s, last value held to now |
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| | `useSampleInterval` false | ✅ all stored samples |
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| | `updateFromHistory` false (runtime values) | no visible difference |
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| Appearance | `plotAreaTransparent` false + `plotAreaPaint` | ✅ plot colour (paint has no effect while transparent) |
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| | `backgroundPaint` | ❌ no visible effect |
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| | `hairlineVisible`, `hairlineColor` | ✅ toolbar hairline button on; click in the plot → line + box with time and pen values |
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| | `timeSliderVisible`, `valueSliderVisible` false | ✅ sliders removed |
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| | `xAxisReversed` / `yAxisReversed` | ✅ newest left **and** time axis moves to the top / 0 at top **and** value axis moves right |
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| | `renderMode` `Rendering2d`, `RenderingTable`, `Rendering3dObl` (`Rendering3dOrt`, `RenderingCSS` not tested) | ✅ table = sample time, value and status per pen (good to see what the server returns); 3D = hatched ribbons |
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| Time axis | `timeAxisMajorGridColor`, `timeAxisLabelRotation`, `timeAxisTitle` | ✅ (the time-axis title shows, unlike the pen title) |
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| | `timeAxisLongLabelVisible` false | ✅ date line under the first label removed |
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| | `timeAxisMinorTickVisible`, `timeAxisMinorGridVisible` | nothing at a 10-minute range |
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| Header/footer | `headerText`, `footerText` | ✅ top-left above the plot / bottom-left below the time control |
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| Legend | `legendPositionType` `PositionNorthEast` (default, right panel), `PositionSouthWest` (= full-height panel on the **left**); also `NorthBottom NorthTop NorthWest SouthBottom SouthTop SouthEast East Absolute` | ✅ |
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| | `legendTitle`, `legendColor`, `legendBackgroundColor`, `legendTransparancy` | ✅ |
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| Controls | `toolbarVisible` false, `timeRangeControlVisible` false | ✅ toolbar / date and range boxes removed |
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| Pen panel | `penPanelVisible`; `penPanelLayout` columns: 0 visible, 1 colour, 2 source, 3 description, 4 units, 5 hairline value, 6 statistics (min \| max \| avg of the shown range), 7 legend, 8 min, 9 max, 10 %, 11 scale range, 12 time offset, 13 appearance, 14 axis, 15 grid (default visible 0–4, 8, 9, 11, 13) | ✅ |
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Gaps (CI Server stopped): the desktop joined the last and next sample with a straight line, or
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held a scan-group pen flat (seen once); the web drops to 0.
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## 5. Component property sheet (Edit Module, connectable)
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20 pen slots `[00]`–`[19]`. Inputs (⇦, item → trend): colours, tooltip, visible, transparency,
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rotation, zoom. Outputs (⇨): *Hairline value[n]*, *Time range begin/end*, *Update interval*,
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*Updating possible*. Both (◇): *Item name[n]*, *Attribute[n]*, *Color[n]*, *Min/Max[n]*,
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*Scale type[n]*, *History group[n]*, *Updating*, *Use history*, *Item index/name*,
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*Configuration file*. Connections were listed, not tested.
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## 6. HTML display (web client)
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- **A trend with fewer than 50 visible pens with an item draws no line** in R1.03 (ISS-041):
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the web code always builds 50 data columns (`PEN_COUNT_LIMIT`) but labels only the visible
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pens with an item; console `Mismatch between number of labels (…) and number of columns in
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array (51)`. The desktop is not affected.
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- **Workaround** (verified 2026-10-02): pad the trend to 50 pens with
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`displays/add_trend_spares.ps1 -Path <display>.xml`. Spares copy the first pen's source,
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are scaled to 1E30–2E30 (clipped), hidden from the legend and get blank unique legend texts
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(the web legend ignores *Show in legend*, ISS-056). Run it again after editing the trend; do
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not keep hidden real pens (they count against the 50). Cost: 50 history requests per trend.
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- Working on the web as on the desktop: value axis, last/current time range, update interval,
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updating at start, plot colour, time-axis grid colour and label rotation, header and footer,
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hidden range control. Not applied: legend position, pen panel, trend toolbar (no way to add
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pens in the browser). Supported-property lists: IM 36K10C50 Table 2.27-28, IM 36K10R30 §4.8.7.
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- **Micro Trend** (`<microTrend>`, up to 4 pens, own SVG drawing, no controls; per-pen
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`<property type="componentProperty"><name>itemName[0]</name><value>…</value></property>`,
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`scaleMin[n]`, `scaleMax[n]`; elements `numberOfPens`, `realTime`, `fillWithHistory`,
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`timeRange` (s, default 300), `sampleCount` (default 300)): drew on desktop and web the first
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time, then stayed blank on every later open (ISS-055, open).
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