ci-server-engineer/.claude/skills/graphics/tasks/create-display.md

task	version	source	status
Build a display in the Edit Module and check the saved file	R1.03	IM 36K10C50-01EN §1.2, §1.7, §2, §4.8.1; practiced on CI-Eng-Sample (display CIENG_Tank) 2026-10-01; display XML written by the sample generator and checked on desktop and web 2026-10-02 to 2026-10-06 (installed web client code, component definitions in DEPLOY\components)	verified

Build a display (Edit Module)

The user draws; Claude gives the steps and checks the result. The sample displays examples/CI-Eng-Sample/displays/CIENG_*.xml are not drawn but written by a generator (displays/generator/); Writing display XML directly lists the rules they follow.

Steps for the user

1. Start the Edit Module and log in.
2. File > New Display, name <DisplayName>; tick HTML display if it should also run in a browser (the editor then hides unsupported components and properties).
3. Add components from the component bar, for example:
   • Text — title.
   • Number field — in the Properties sheet click Value, open the connection dialog, Items tab, pick <Section>.<Tag>.
   • Alarm Overview — right-click > Component Properties; Filter tab for an ASA, section or tag filter; Types tab for current/historical.
   • Trend — component properties, pen 1 = <Section>.<Tag> (a new trend has 5 empty pens; the item must be in a storage group).
4. File > Save (or Save with Revision Information). Close the tab when done: an open display is locked (<DisplayName>.lck) and jwuiutl skips it.

Check the saved file

Folder %TLS_WAP_PATH%\cfg\operatorInterfaces\DEPLOY\displays\ (and with HTML mode also %TLS_WAP_PATH%\mobileoperator\operatorInterfaces\DEPLOY\displays\<DisplayName>.html).

grep -n "<html>\|<width>\|<height>\|itemName\|itemId\|<source" <DisplayName>.xml

• <html>true</html> = HTML mode; <width>/<height> must be set for the HTML display.
• Item connections: <itemName> + <itemId> (node.group.number…); trend pens: <source type="sourceID" uri="ci:/item/<item>"/> (uri="" = empty pen).
• Write a fixed value with a button (verified in the HTML display, buttons Manual / Auto on the former CIENG_Tank and, since 2026-10-06, on CIENG_Control): <button> › <data> › <action type="actionSetItemAttribute"> with <event type="event" event="On action"/>, <filter type="filter"><value>1.0</value></filter> and a <connection> with <direction>2</direction>, <itemName>, <itemAttribute>ItemValue (the factory popups use ItemValueOW, presumably the overwrite variant like itmval -o; not tested). The factory popup AOG_SetNumberPV uses the same action behind its Apply button.
• After the item is deleted and loaded again it gets a new id; the display still validates, but on 2026-10-01 the HTML display showed 0 and the popup ITM-E-NO_MAIN, No main item found for a number field whose stored <itemId> was stale, also in a fresh session. Deleting the <itemId> line (keeping <itemName>) and redeploying fixed it: the field binds by name. Sample displays therefore carry no <itemId>; for displays made in the Edit Module, reconnect or remove the ids after reloading items (ISS-052).

Writing display XML directly (verified 2026-10-02 to 2026-10-06)

The Edit Module stores one element per component (<text>, <number>, <rectangle>, <arc>, <button>, <slider> …, names as in DEPLOY\components\*.xml), its position as centre plus half sizes, and the connections in <data>. Files written by hand or by a script load in the Edit Module, the Operator Interface and the HTML display, if these rules are kept (sample generator: examples/CI-Eng-Sample/displays/generator/):

Topic	Rule (R1.03.00)
Text / number size	With <keepOriginalSize>false the HTML export scales the text to its box (e.g. scale(0.98, 3.80) in a 40 px box); with true it is drawn at its font size, centred on the box (tested 2026-10-06)
Rectangle rounding	roundingX / roundingY are a fraction 0..1 of the half width / height; values above 1 draw an ellipse, on the desktop and on the web (tested 2026-10-06)
Arc angles	startAngle / extentAngle in degrees clockwise from 3 o'clock (screen y down), negative values allowed; the same on both clients, fixed or connected (tested 2026-10-06: 0/90 = lower-right quarter)
Click on a shape	event Clicked b1 (buttons: On action), e.g. an Open display action on a rectangle (2026-10-02)
Item attributes for the web	ItemValue, ItemDesc, ItemStatusMnemonic, ItemUpdTime (epoch seconds), ItemHHL / ItemHL / ItemLL / ItemLLL (limits), ItemName (micro trend pens), list in the web client code; ItemDescription does not exist (sample faceplate and Control tab, 2026-10-06)
Showing a time	number field with <asDateTime>true connected to ItemUpdTime; a dateTimeField shows the value on the web only when editable (2026-10-02/06)
Server-side command	<action type="actionExecuteCommand"> with <command> and <onServer>true</onServer> runs on the CI Server node as the service account CIX_PROCESS, also from the web; a user in the factory group OPERATOR may use it (tested 2026-10-06, sample live-data Start)
Alarm overview	autoFit true in a tab that is hidden while loading squeezes all columns to ~0 px on the web: set autoFit false and give column<Name>Width; column…Visible for AlarmAttribute is an array property (a plain value fails the HTML export with ClassCastException); the empty part of the list stays white on both clients (no property; web: jquery.dataTables.css forces it); web rows are 20 px at a 14 px font (2026-10-02/06)

Verified (CIENG_Tank, 2026-10-01)

Text CI-Eng-Sample Tank 1, number field on TANK1.LEVEL (live: 72 → 61), alarm overview (no filter; listed the TANK1.LEVEL alarms), trend pen TANK1.LEVEL (legend CI-Eng-Sample.TANK1.LEVEL [CIENG_SCAN10S] = highest-priority storage group). In the HTML display the trend drew no line: a trend needs 50 visible pens to draw on the web (ISS-041; workaround and all trend settings in trend.md). The sample file is now padded with add_trend_spares.ps1 (49 spares) and draws in the browser too. CIENG_Tank was replaced by the generated CIENG_* displays on 2026-10-06; they carry no <itemId> and found the recreated items after a full remove.cmd / load.cmd cycle in a fresh session (2026-10-06).