DipTrace Schematic Capture — XML Format Specification

Generated from the DipTrace serializer, repository revision 7276 — reflects current program behaviour.

1. How to read this specification

This document describes the DipTrace Schematic Capture flavour of the DipTrace XML format — the same format used both for File ▸ Save/Open As ▸ DipTrace XML and for the plug‑in exchange file. It is generated directly from the DipTrace serializer and reflects what the program actually reads and writes.

Each element is given with a short description, a representative XML fragment, and a table of its attributes. The Written column states the condition under which the serializer emits the attribute (always, a guard such as if >-1, or a context such as Text shapes only); an attribute left at its default is usually omitted, so a missing attribute means use the default, not zero.

2. Document structure

A schematic project is a single <Source> root holding the embedded design‑cache library and the editable schematic:

<Source Type="DipTrace-Schematic" Version="4.3.0.x" Units="mm">
					  <Library Type="DipTrace-ComponentLibrary" ...>...</Library>   <!-- design cache -->
					  <Schematic> ... </Schematic>                                  <!-- the editable project -->
					</Source>
					

The editable schematic data lives under <Schematic> (a plug‑in's data node is /Source/Schematic); the sibling <Library> is the project's design cache and nests the footprint (pattern) library.

3. Value types & formatting

Type	Encoding
Int	A plain decimal integer.
Real	A decimal number expressed in the file's Units, written with a dot decimal separator. The reader is tolerant (it normalises both dot and comma), but the dot is canonical and is what other tools expect.
Bool	Y / N. (A few Schematic simulator fields use + / -.)
Text	A string attribute or element text.
Color	A 24‑bit integer in Windows 0x00BBGGRR order (e.g. 255 = red).
enum	A fixed set of text (or, in a few cases, integer) values, listed with the element.

4. Coordinate frames, units & angles

• The document root carries Units="mm" | "inch" | "mil". Every Real coordinate, length and size in the file is in those units; there is no per‑object override.
• Objects inside a library symbol or footprint (pins, pads, shapes) are stored in an object‑centre frame — coordinates are relative to the part/footprint origin and are not affected by where an instance is placed.
• Angles are in radians, counter‑clockwise, unless an attribute is explicitly a discrete orientation enum (e.g. a footprint Orientation of 0/90/180/270).
• Coordinate scaling and sign are internal to the file; read and write values as they are — do not rescale or flip them.

5. Identifiers, references & list ordering

• Most list elements carry an Id (or Index/Number) that other objects reference. A reference value of -1 means none / not connected.
• A few lists are referenced positionally, not by an Id attribute: a ViaStyle value indexes the in‑order <ViaStyles> list and a NetClass value indexes the in‑order <NetClasses> list. Reordering those lists silently reassigns the references.
• When a whole file is opened, top‑level object lists are resolved by position: each array must be dense, ascending from Id 0, with position equal to Id. A file authored out of order or with gaps will bind references to the wrong objects.

6. Object state flags

Attribute	Type	Meaning
Selected	Bool	User selection state.
Locked	Bool	Edit lock.
Group	Int	Group Id, or -1 for none; groups are listed in a <Groups> section.
Enabled	Bool	Exists / removed. A normal save prunes disabled objects, so a saved file rarely shows Enabled="N"; on the plug‑in exchange / edit‑import path, however, Enabled="N" is honoured as a delete flag on the editable objects. An absent flag means enabled.

7. Plug-in exchange & import merge

The same format is the plug-in exchange file: DipTrace exports the selected data, launches the plug-in with the file path as its argument, waits for it to exit, then re-imports the (possibly edited) file. How the result merges back depends on the import mode:

• Whole-list (ImpMode=All) — the incoming list replaces the project's list of that object kind; anything omitted is removed.
• Edit — each top-level object is matched to an existing one by its Id and overwritten in place; an object with a new or absent Id is added. Keep an object's Id to edit it, and omit the Id on objects you add — never invent one, because over a partial export a computed “free” Id can collide with an unexported object and overwrite it.

Nested lists without their own Id are REPLACED, not merged. A net's <Traces>, a net's or bus's <Wires>, and point lists have no per-member Id. When such a container is present in your XML, DipTrace discards the existing list and rebuilds it from exactly the children you supply — so appending one trace under an existing net replaces that net's entire routing. To add one member, re-list every current member plus the new one; to leave the list untouched, omit the container element entirely.

The Selected filter skips — it does not add. When a plug-in runs with a Selected filter under Edit, only objects flagged Selected="Y" are processed at all: a marked object with an existing Id is edited, a marked object with a new Id is added, and an unflagged object is skipped entirely (neither edited nor added). Put Selected="Y" on every object you add or edit under such a filter, or its data is silently dropped.

To remove an object, set Enabled="N" on it and leave it in the file (see Object state flags) — do not delete the XML node. Component and Pattern library files use coarser Library / Component / Part import modes rather than per-object Edit, but the Enabled delete flag and the Id rules still apply.

A note on completeness. Where a newer serializer field has no counterpart in an older published table (for example the real‑valued/mono font fields, or per‑object shield‑group ids), it is documented here as a first‑class attribute. Preserve attributes and elements you do not recognise when editing a file in place — they belong to other subsystems and to future format versions.

8. Cross-cutting: font-size fields

Every text-bearing element in the Schematic dialect carries a legacy rounded integer font size and a fractional companion. On import the fractional value overrides the rounded integer whenever it is present, so a reader that wants exact sizes must prefer the …Float attribute.

Attribute	Type	Written	Description
FontSize / Font / FontSizeFloat	Int / Real	always (as a pair)	The integer is the rounded legacy size; FontSizeFloat holds the true fractional size and wins on import. Written on <BorderZones>, <Field>, <Markings>, <BusConnections>, <PinNumbers>, <NetName>, a text <Shape>, <Table>, and <Cell>.
MarkingFontSize / MarkingFontSizeFloat	Int / Real	always (as a pair)	Same pairing for a <Part>'s marking font; the …Float twin carries the fractional value.
FontMono	Bool (Y/N)	vector font only	Written only when the object uses the internal vector font (FontVector="Y"); selects the monospaced vector face. Absent for TrueType text.
TextWidth / TextHeight	Real	export-only	Computed bounding size of the text (via GetTextWH), emitted for informational use on <Field>, text <Shape>, and <Cell>. Recomputed on import — never read back; treat as read-only.

Note. The fractional/mono font family is written throughout the document but does not replace the integer fields — both are always present so older readers keep working. When authoring XML, set the …Float value; the rounded integer is derived.

9. <SheetSettings> — page setup and title blocks

Holds the sheet list and per-sheet page geometry, border zones, and up to six title blocks. Objects across the schematic reference a sheet by its Id.

<SheetSettings>
					  <DisplayTitles>Y</DisplayTitles>
					  <DisplaySheet>Y</DisplaySheet>
					  <ActiveSheet>0</ActiveSheet>
					  <Sheets>
					    <Sheet>
					      <Id>0</Id> <Name>Sheet1</Name> <Type>Normal</Type>
					      <XPos>0</XPos> <YPos>0</YPos> <Scale>1</Scale>
					      <SheetWidth>297</SheetWidth> <SheetHeight>210</SheetHeight>
					      <LeftMargin>5</LeftMargin> <TopMargin>5</TopMargin>
					      <RightMargin>5</RightMargin> <BottomMargin>5</BottomMargin>
					      <BorderZones>…</BorderZones>
					    </Sheet>
					  </Sheets>
					</SheetSettings>
					

Header children: DisplayTitles and DisplaySheet (Bool) toggle title-block / sheet-border display; ActiveSheet (Int) is the currently shown sheet index.

9.1. <Sheet>

Attribute	Type	Written	Description
Id	Int	always	Sheet index; objects reference it by Sheet="N".
Name	Text	always	Sheet name.
Type	enum	always	0=Normal, 1=Hierarchy Block.
BlockId	Int	if Type is Hierarchy Block	Links this child sheet to the hierarchy-block part that expands into it (see the note below); omitted entirely for a normal sheet.
XPos / YPos	Real	always	Sheet origin (Y is negated on write).
Scale	Real	always	Display scale.
SheetWidth / SheetHeight	Real	always	Page size in file Units.
LeftMargin / TopMargin / RightMargin / BottomMargin	Real	always	Printable margins.

Hierarchy blocks. A hierarchical design links a block part (a <Part> of part type 4, carrying a BlockId) to the child <Sheet> that expands it. The link is the matching BlockId value written on both sides — a content link that is independent of the positional Sheet Id that ordinary objects use through Sheet="N". Do not conflate the two: a sheet's Id is its page index, its BlockId is its block identity. If a BlockId does not resolve on import, DipTrace falls back to matching the block to its sheet by name.

9.2. <BorderZones> and the six title blocks

Written only in a full save (not per-object plug-in exports). <BorderZones> carries the zone-grid setup: Visible, HorzZones/VertZones (Int), Standard, FontName, FontSize/FontSizeFloat, FontLineWidth (Real), Border (Bool), and HorzBorderSize/VertBorderSize (Real). The six title blocks are separate elements: <BottomRightBlock>, <BottomLeftBlock>, <TopRightBlock>, <TopLeftBlock>, <ExtTopLeftBlock>, <ExtBottomLeftBlock>.

<BottomRightBlock Width="180" Height="55">
					  <Name>ANSI A</Name>
					  <ColumnWidths><Item>40</Item>…</ColumnWidths>
					  <RowHeights><Item>10</Item>…</RowHeights>
					  <Cells><Item><Item FieldId="0" TopLine="Y" BottomLine="Y" LeftLine="Y" RightLine="Y"/>…</Item></Cells>
					  <Fields>
					    <Field Id="0" FontVector="N" FontSize="10" FontSizeFloat="10" FontWidth="-2"
					           FontScale="1" FontColor="0" LineSpacing="1.2" TextShow="Text" TextAlign="Left"
					           X1="0" Y1="0" X2="40" Y2="10" TextWidth="18" TextHeight="4">
					      <TextLines><TextLine>Title</TextLine></TextLines>
					      <FontName>Tahoma</FontName>
					    </Field>
					  </Fields>
					</BottomRightBlock>
					

Note. A title block is omitted when its Name is blank, and ColumnWidths/RowHeights/Cells/Fields are omitted when empty — all optional. A <Field> emits FontMono only when FontVector="Y", and TextWidth/TextHeight only for a plain text field (TextShow="Text").

10. <Settings> — global project settings

Global fonts, grid, origin, line widths, bus-connection display, pin numbers, and the net-label font. Emitted as a block of child elements.

<Settings>
					  <Markings FontVector="Y" FontMono="N" FontSize="10" FontSizeFloat="10"
					            FontWidth="-2" FontScale="1" UsePartFontColor="N" FontColor="0">
					    <RefDesGlobal Show="Common" ShowPart="Common" Align="Auto"/>
					    <NameGlobal …/> <ValueGlobal …/> <ManufacturerGlobal …/> <DatasheetGlobal …/>
					  </Markings>
					  <Grid Visible="Y" Snap="Y" Size="2.5"/>
					  <Origin Visible="N" AxisColor="0" X="0" Y="0"/>
					  <LineWidth Wire="0.25" NodeSize="1" Bus="0.5" Table="0.25" Titles="0.25"/>
					  <BusConnections Show="NetName" Position="Above" FontSize="8" FontSizeFloat="8"/>
					  <PinNumbers Visible="Y" Font="8" FontSizeFloat="8"/>
					  <NetName FontSize="8" FontSizeFloat="8"/>
					  <HidePower>N</HidePower>
					  <ProjectDir>…</ProjectDir>
					</Settings>
					

<Markings> holds the shared component-marking font (FontVector, FontMono in the vector branch, FontName in the TrueType branch, plus FontSize/FontSizeFloat/FontWidth/FontScale/UsePartFontColor/FontColor) and per-field show/align children <RefDesGlobal>, <NameGlobal>, <ValueGlobal>, <ManufacturerGlobal>, <DatasheetGlobal>, and an optional <AddFieldsGlobal> list.

Element / Attr	Type	Written	Description
<Grid> Visible/Snap/Size	Bool/Bool/Real	always	Grid display, snapping, spacing.
<Origin> X/Y/Visible/AxisColor	Real/Real/Bool/Int	always	User origin position, visibility, axis color.
<LineWidth> Wire/NodeSize/Bus/Table/Titles	Real	always	Default widths for wires, junction node size, buses, table lines, title lines.
<BusConnections> Show/Position/FontSize/FontSizeFloat	enum/enum/Int/Real	always	Show: NetName/Number; Position: Above/Below; the label font size.
<PinNumbers> Visible/Font/FontSizeFloat	Bool/Int/Real	always	Pin-number display and font size.
<NetName> FontSize/FontSizeFloat	Int/Real	always	Net-label font size (schematic net names), between <PinNumbers> and <HidePower>.
<HidePower>	Bool	always	Hide power/ground pins.
<ProjectDir>	Text	always	Project directory.

11. <NetClasses> / <NetClass>

The project's net classes, written in order. The diff-pair rule attributes appear only for a Differential Pair class.

<NetClasses>
					  <NetClass Id="0" UpdateId="0" Type="Normal" Width="0.25" Clearance="0.25">
					    <Name>Default</Name>
					  </NetClass>
					  <NetClass Id="1" UpdateId="3" Type="Differential Pair" Width="0.2" Clearance="0.2"
					            DifClearance="0.2" MaxUncoupledLength="5" Tolerance="0.1" Phase="0" Phase_ErrorLength="0">
					    <Name>DiffPair</Name>
					  </NetClass>
					</NetClasses>
					

Attribute	Type	Written	Description
Id	Int	always	In-order index of the class (equals its list position).
UpdateId	Int	always	Cross-link id for update against the PCB.
Type	enum	always	0=Normal, 1=Differential Pair.
Width	Real	if >-1	Default trace width.
Clearance	Real	if >-1	Default clearance.
DifClearance	Real	Diff Pair, if >-1	In-pair clearance.
MaxUncoupledLength	Real	Diff Pair only	Max uncoupled length.
Tolerance	Real	Diff Pair only	Length-match tolerance.
Phase	Real	Diff Pair only	Phase-match target.
Phase_ErrorLength	Real	Diff Pair only	Phase error length.
<Name>	Text	always	Class name (child element).

Note. A net selects its class with NetClass="N", a positional index into this in-order list. On a native save Id equals that position, so the two agree; reordering <NetClass> entries silently reassigns classes.

12. <DesignCache>

Records how many leading components in the embedded <Library> are design-cache entries.

<DesignCache Count="3"/>
					

Attribute	Type	Written	Description
Count	Int	always	Number of leading design-cache components (stored as the internal cache count plus one).

13. <ERC>

Electrical-rules-check flags and the power/ground name templates.

<ERC CheckPinType="Y" CheckNotConnected="Y" CheckSinglePin="Y" CheckShort="Y" CheckPinSuperimpose="Y">
					  <VCCTemplate>VCC;+*</VCCTemplate>
					  <GNDTemplate>GND;0</GNDTemplate>
					</ERC>
					

Attribute	Type	Written	Description
CheckPinType	Bool	always	Check pin-type conflicts.
CheckNotConnected	Bool	always	Check not-connected pins.
CheckSinglePin	Bool	always	Check single-pin nets.
CheckShort	Bool	always	Check shorts.
CheckPinSuperimpose	Bool	always	Check superimposed pins.
<VCCTemplate> / <GNDTemplate>	Text	always	Power / ground net-name templates (child elements).

14. <Components> / <Part>

One <Part> per placed part/section; several parts of a multi-part component share a RefDes. ComponentStyle points to a symbol in the embedded library and ComponentPart selects the section within it.

<Part Id="0" UpdateId="2221" ComponentStyle="CompType229" ComponentPart="0" AllowParts="N"
					      PartNumber="1" Sheet="4" X="83.82" Y="-43.815" Angle="4.7124"
					      MarkingFontSize="10" MarkingFontSizeFloat="10">
					  <RefDes>C1</RefDes> <PartRefDes>1</PartRefDes> <PartName>Part 1</PartName>
					  <Value>(1608)</Value> <Name>CAP_1608(0603)</Name> <BaseName>CAP</BaseName>
					  <Manufacturer>Yageo</Manufacturer> <Datasheet>http://…</Datasheet>
					  <LibPath><Path>…</Path><Var>…</Var></LibPath>
					  <RefDesMarking Show="Common" Align="Auto" Horz="Left" Vert="Top" X="0" Y="0" Angle="0"/>
					  <NameMarking …/> <ValueMarking …/> <ManufacturerMarking …/> <DatasheetMarking …/>
					  <Pins><Pin NetId="0"/><Pin NetId="-1" NotConnected="Y"/></Pins>
					</Part>
					

Attribute	Type	Written	Description
Id	Int	always	Part id; net pin items reference it.
UpdateId	Int	always	Cross-link id to the PCB component.
BlockId	Int	hierarchy-block part only	Hierarchy-block link (part type 4); matches the BlockId of the child <Sheet> it expands into.
ComponentStyle	Text	if library entry resolved	Symbol name in the embedded library.
ComponentPart	Int	always	Section index within that symbol.
AllowParts	Bool	always	Whether the component is split into parts/sections.
PartNumber	Int	always	This part's number within the component.
Sheet	Int	always	Owning sheet Id.
X / Y	Real	always	Placement (Y negated on write).
Angle	Real	if ≠0	Rotation, radians CCW.
HorzFlip / VertFlip	Bool	if flipped	Mirror flags (only Y is written).
ShowNumbers	enum	if >0	0=Common, 1=Show, 2=Hide.
ShowOrigin	Bool	if set	Show the part origin.
CustomMarkingFont	Bool	if set	Part overrides the global marking font.
MarkingFontSize / MarkingFontSizeFloat	Int / Real	always	Marking font size (float twin wins on import).
MarkingFontAll	Bool	if set	Apply the marking font to all fields.
Group	Int	if >-1	Group id, else omitted.
Selected / Locked	Bool	if set	Editor flags (only Y written).

Value elements (child text, all always written): <RefDes>, <PartRefDes>, <PartName>, <Value>, <Name>, <BaseName> (the component base name), <Manufacturer> (the manufacturer value, distinct from the display-only <ManufacturerMarking>), and <Datasheet> (the datasheet value, distinct from <DatasheetMarking>). Followed by <LibPath>, the five marking-display blocks (<RefDesMarking> … <DatasheetMarking>, each with Show/ShowPart/Align/Horz/Vert/X/Y/Angle), an optional <AddFields> list, the <Pins> list, and an optional <Category>.

14.1. <Pins> (of a Part)

The part's pins in symbol pin order; nets reference a pin by this positional index.

Attribute	Type	Written	Description
NetId	Int	always	Connected net Id, or -1 for none.
NotConnected	Bool	if set	Explicitly marked not-connected (only Y written).

Note. A normal save never writes Enabled on a <Part> — disabled parts are pruned. Since rev 7272 the plug-in importer honors Enabled="N" on a <Part> as a delete flag (see the closing note under <Groups>).

15. <Nets> / <Net>

Each net lists its pin memberships and its wires. Boolean flags are written only when set (as Y), except Enabled, which is written as N for a deleted net.

<Net Id="0" NetClass="0" HiddenId="0" Global="Y" CustomColor="Y" WireColor="255">
					  <Name>AP-WAKE-BT</Name>
					  <Pins><Item Part="596" Pin="0"/><Item Part="347" Pin="2"/></Pins>
					  <Wires>
					    <Wire Id="0" Sheet="1" Connected1="Pin" Bus1="-1" Object1="709" SubObject1="0"
					          Connected2="Wire" Bus2="-1" Object2="3" SubObject2="1"
					          HiddenPower="N" CanUnhide="N">
					      <Points><Point X="-1.27" Y="-13.97" Dir="-1"/><Point X="0" Y="-13.97" Dir="0"/></Points>
					    </Wire>
					  </Wires>
					</Net>
					

Attribute	Type	Written	Description
Id	Int	always	Net id; referenced by pins, shapes, buses, diff pairs.
NetClass	Int	always	Positional index into <NetClasses>.
HiddenId	Int	always	Internal stable id used across merge/update.
UniteByName	Bool	if set	Unite same-named nets.
ConnectPinByName	Bool	if set	Connect pins by name.
Global	Bool	if set	Global net.
CustomColor	Bool	if set	Use a custom wire color; when set, WireColor follows.
WireColor	Int	if custom & ≠0	Custom wire color.
Locked	Bool	if set	Locked.
Enabled	Bool	N only, for a deleted net	The one object that genuinely emits Enabled="N" (delete flag). Never written when enabled.
<Name>	Text	always	Net name (child element).

<Pins> holds <Item Part="…" Pin="…"/> — the part Id plus the pin's positional index in that part.

15.1. <Wire> / <Point>

Attribute	Type	Written	Description
Id	Int	always	Wire id within the net.
Sheet	Int	always	Owning sheet.
Connected1 / Connected2	enum	always	Endpoint kind — see enum below.
Bus1 / Bus2	Int	always	Connected bus Id when the endpoint is a bus, else -1.
Object1 / Object2	Int	always	Endpoint target: Pin→part Id; Wire→another wire Id in the net; Bus→bus-wire Id.
SubObject1 / SubObject2	Int	always	Pin→pin index in the part; Wire/Bus→point index in that wire.
HiddenPower	Bool	always	Hidden power/ground wire.
CanUnhide	Bool	always	Whether a hidden wire may be unhidden.
Arrows	enum	if >0	0=None, 1=Forward, 2=Backward.
Group	Int	if >-1	Group id.
Selected	Bool	if set	Editor flag.

Value	Name
0	Pin
1	Wire
2	2 (net-junction placeholder)
3	Bus
4	Free

Each <Point> carries X/Y (Real, Y negated) and Dir (Int): -1 unset, 0 horizontal, 1 vertical — the direction is stored on the segment's second point; the first point's Dir is ignored.

16. <DifferentialPairs> / <DifferentialPair>

Pairs the positive and negative nets of a differential pair.

<DifferentialPairs>
					  <DifferentialPair Id="0" PosNet="4" NegNet="5" NetClass="1" CustomColor="Y" WireColor="16711680">
					    <Name>USB_D</Name>
					  </DifferentialPair>
					</DifferentialPairs>
					

Attribute	Type	Written	Description
Id	Int	always	Pair index (load-bearing on merge/exchange import).
PosNet / NegNet	Int	always	Positive / negative net Id.
NetClass	Int	always	Positional net-class index.
CustomColor	Bool	if set	Use a custom color; when set, WireColor follows.
WireColor	Int	if custom	Custom wire color.
<Name>	Text	always	Pair name (child element).

Note. Enabled is not produced for a diff pair — the export loop is gated on the enabled flag, so a disabled pair is pruned (no element). The presence of the element itself is the "enabled" signal. The reader still accepts Enabled on hand-authored XML.

17. <Buses> / <Bus> and <BusConnectors> / <BusConnector>

A bus lists its member nets and its bus wires. Bus connectors are the named ports that join a bus to nets.

<Buses>
					  <Bus Id="0">
					    <Name>DATA</Name>
					    <Nets><Net NetId="4" ConnectionNumber="0"/><Net NetId="5" ConnectionNumber="1"/></Nets>
					    <Wires>
					      <Wire Id="0" Sheet="1" Connected1="Bus Connector" Bus1="-1" Object1="2" SubObject1="0"
					            Connected2="Bus Wire" Bus2="-1" Object2="1" SubObject2="0">
					        <Points><Point X="10" Y="-20" Dir="-1"/>…</Points>
					      </Wire>
					    </Wires>
					  </Bus>
					</Buses>
					<BusConnectors>
					  <BusConnector Id="0" Sheet="1" X="10" Y="-20" Connected="Y"><Name>DATA</Name></BusConnector>
					</BusConnectors>
					

17.1. <Bus>

Attribute	Type	Written	Description
Id	Int	always	Bus id.
Locked	Bool	if set	Locked.
Enabled	Bool	—	Not emitted by a native save (loop gated on enabled). Reader-accepted delete flag.
<Name>	Text	always	Bus name (child element).

<Nets> holds <Net NetId="…" ConnectionNumber="…"/> (member net Id and its ordinal in the bus). <Wires> holds bus <Wire>s with the same connection model as net wires (Id, Sheet, Connected1/2, Bus1/2, Object1/2, SubObject1/2, optional Group/Selected) and <Points>. Bus-wire endpoint kinds: 2=Bus Wire, 4=Bus Connector, all other values render as Free.

17.2. <BusConnector>

Attribute	Type	Written	Description
Id	Int	always	Connector id.
Sheet	Int	always	Owning sheet.
X / Y	Real	always	Position (Y negated).
Connected	Bool	always	Whether the connector is attached to a bus.
Enabled	Bool	—	Not emitted by a native save (loop gated on enabled). Reader-accepted delete flag.
Group	Int	if >-1	Group id.
Selected / Locked	Bool	if set	Editor flags.
<Name>	Text	always	Port name (child element).

18. <Shapes> / <Shape>

Free graphics and text. Attribute set varies by Type: line-style attributes for outlines/fills, picture attributes for pictures, and the full font family for text.

<Shape Id="0" Type="Rectangle" Sheet="0" LineWidth="0.25" Color="9079434" Selected="N">
					  <Points><Point X="86.995" Y="21.59"/><Point X="120" Y="40"/></Points>
					</Shape>
					<Shape Id="1" Type="Text" Sheet="0" Angle="0" HorzAlign="Left" VertAlign="Top" TextAlign="Left"
					       FontVector="Y" FontMono="N" FontSize="10" FontSizeFloat="10" FontWidth="-2" FontScale="1"
					       FontColor="0" LineSpacing="1.2" TextWidth="18" TextHeight="4">
					  <Points><Point X="10" Y="-5"/></Points>
					  <FontName>Tahoma</FontName>
					  <TextLines><TextLine>Power</TextLine></TextLines>
					</Shape>
					

Attribute	Type	Written	Description
Id	Int	always	Shape index.
Type	enum	always	See enum below.
Sheet	Int	always	Owning sheet.
LineWidth	Real	all types except Text and Picture, if >-1	Outline width — written for fills too (FillRect, FillObround).
Color	Int	all types except Text and Picture	Line/fill color.
NetId	Int	Text shapes, if ≥0	Bound net (net-name label).
BusId	Int	Text shapes, if ≥0	Bound bus (bus label).
Angle	Real	Text and Picture	Text/picture rotation.
PictureWidth / PictureHeight	Real	Picture only	Picture size.
PictureProportions	Bool	Picture only	Keep aspect ratio.
PictureFlipped	Bool	Picture only	Picture mirrored.
PictureTransparent	Int	Picture only	Transparent-color value.
HorzAlign / VertAlign	enum	Text and Picture	Anchor alignment (Left/Center/Right; Top/Center/Bottom).
TextAlign	enum	Text only	Paragraph alignment.
FontVector	Bool	Text only	Vector vs TrueType font; FontMono follows when Y.
FontSize / FontSizeFloat	Int / Real	Text only	Font size (float twin wins on import).
FontWidth / FontScale / FontColor / LineSpacing	Real/Real/Int/Real	Text only	Stroke width, scale, color, line spacing.
TextWidth / TextHeight	Real	Text only, if has lines	Computed text extent (informational).
Group	Int	if >-1	Group id.
Selected / Locked	Bool	if set	Editor flags.

Value	Name
0	None
1	Line
2	Arc
3	Arrow
4	Rectangle
5	FillRect
6	Obround
7	FillObround
8	Polyline
9	Polygon
10	Text
11	Picture

Child elements: <Points>/<Point X Y> (geometry). A Text shape also writes <FontName> and a <TextLines>/<TextLine> list; a Picture shape writes a <PictureFile> (<Path>/<Var>).

Note. LineWidth and Color are written for filled shapes (FillRect, FillObround) too — the only exclusions are Text and Picture. Enabled is not emitted (disabled shapes are pruned); the reader accepts it as a delete flag.

19. <Tables> / <Table> / <Cell>

Free / BOM tables. Table-level attributes carry the default cell font; each cell can override it.

<Table Id="0" Sheet="1" X1="10" Y1="-10" X2="90" Y2="-40" Orientation="0"
					       CellWidth="20" CellHeight="6" TextAlign="Left" FontVector="Y" FontMono="N"
					       FontSize="8" FontSizeFloat="8" FontWidth="-2" FontScale="1" FontColor="0" LineSpacing="1.2">
					  <FontName>Tahoma</FontName> <Name>BOM</Name>
					  <ColWidths><Item>20</Item>…</ColWidths>
					  <RowHeights><Item>6</Item>…</RowHeights>
					  <Cells>
					    <Cell>
					      <Cell X1="10" Y1="-10" X2="30" Y2="-16" TextAlign="Left" FontVector="Y" FontMono="N"
					            FontSize="8" FontSizeFloat="8" FontWidth="-2" FontScale="1" FontColor="0"
					            LineSpacing="1.2" TextWidth="12" TextHeight="4">
					        <FontName>Tahoma</FontName>
					        <TextLines><TextLine>RefDes</TextLine></TextLines>
					      </Cell>
					    </Cell>
					  </Cells>
					</Table>
					

Attribute	Type	Written	Description
Id	Int	always	Table index.
Sheet	Int	always	Owning sheet.
HideBorder	Bool	if set	Suppress the outer border.
X1/Y1/X2/Y2	Real	always	Table rectangle (Y negated).
Orientation	enum	always	0/1/2/3 = 0/90/180/270.
CellWidth / CellHeight	Real	always	Default cell size.
TextAlign	enum	always	Default cell alignment (Left/Center/Right).
FontVector / FontMono	Bool	always / vector only	Default cell font kind; FontMono only when vector.
FontSize / FontSizeFloat	Int / Real	always	Default cell font size.
FontWidth / FontScale / FontColor / LineSpacing	Real/Real/Int/Real	always	Default cell font metrics.
Group	Int	if >-1	Group id.
Selected / Locked	Bool	if set	Editor flags.
<FontName> / <Name>	Text	always	Default font family; table name.

Cells are written as a <Cells> list of rows, each row a <Cell> containing the row's <Cell> entries. A cell carries its own rectangle (X1/Y1/X2/Y2), TextAlign, the full font family (FontVector, FontMono when vector, FontSize/FontSizeFloat/FontWidth/FontScale/FontColor/LineSpacing, <FontName>), and, when it has text, TextWidth/TextHeight plus a <TextLines>/<TextLine> list.

Note. The row and cell wrappers share the tag name <Cell> — the outer level is a row, the inner level a cell. Enabled is not emitted (disabled tables are pruned); the reader accepts it as a delete flag.

20. <Simulator> — SPICE setup

Written only when the project has simulation data. Carries the analysis type, plotted signals, per-analysis parameter blocks, a digital-simulation block, and four SPICE solver-options blocks.

<Simulator Type="Transient" GndNetId="0">
					  <Signals>
					    <Signal Type="Voltage" Id="4" Plotted="Y" Visible="Y" Color="255">
					      <DisplayName>V(out)</DisplayName>
					    </Signal>
					  </Signals>
					  <Transient><StartTime>0</StartTime><Step>1u</Step><StopTime>1m</StopTime></Transient>
					  <Digital><StartTime>0</StartTime><Step>1n</Step><StopTime>1u</StopTime><GroupBuses>Y</GroupBuses></Digital>
					  <OptionsGeneral NoPrintStat="N" NoPrintModelParams="N"><Temp>27</Temp><TempNomMeasure>27</TempNomMeasure></OptionsGeneral>
					  <OptionsDC ConductanceSteps="0" SkipConductanceStepping="N" Iteration="100" TransferCurveIteration="50" StartFromConductanceStepping="N">…</OptionsDC>
					  <OptionsAC NoOPAnalysis="N"/>
					  <OptionsTransient LowIteration="0" PointIteration="10" TotalIteration="5000" SourceStepping="0" MethodMaxOrder="2" Method="1">…</OptionsTransient>
					  <GndNetName>GND</GndNetName>
					</Simulator>
					

Attribute	Type	Written	Description
Type	enum	always	Analysis type — see enum below.
GndNetId	Int	always	Ground net Id (-1 for none).

Value	Name
1	Small-Signal AC
2	DC Transfer Function
4	Noise
9	Transient
10	Digital
11	Options

Child blocks (each written when it has data): <Signals> of <Signal Type Id Plotted Visible Color> with a <DisplayName> (Type: 0=Current, 1=Voltage); <SmallSignalAC>, <DCTransferFunc>, <Transient>, <Noise> parameter blocks; and <Digital> (<StartTime>/<Step>/<StopTime>/<GroupBuses>).

20.1. SPICE solver-options blocks

Four blocks written unconditionally within <Simulator>, carrying the numeric SPICE options as text/attribute values.

• <OptionsGeneral>: NoPrintStat, NoPrintModelParams (Bool attrs); <Temp>, <TempNomMeasure> (text).
• <OptionsDC>: attrs ConductanceSteps, SkipConductanceStepping, Iteration, TransferCurveIteration, StartFromConductanceStepping; text children <AbsCurrentTolerance>, <MinConductance>, <PivotRation>, <PivotTolerance>, <RelativeError>, <GroundResistor>, <VoltageError>.
• <OptionsAC>: NoOPAnalysis (Bool attr).
• <OptionsTransient>: attrs LowIteration, PointIteration, TotalIteration, SourceStepping, MethodMaxOrder, Method (0=unknown, 1=default/Trapezoidal, 2=Gear); text children <ChargeTolerance>, <SourceSteppingChange>, <ErrorTolerance>, <TrapezoidalDampingFactor>.

The block closes with a <GndNetName> text element.

21. <Groups> / <Group>

Registry of object groups.

<Groups>
					  <Group Id="0" Selected="N"/>
					  <Group Id="1" Enabled="N"/>
					</Groups>
					

Attribute	Type	Written	Description
Id	Int	always	Group id; objects reference it via Group.
Enabled	Bool	N only, for a deleted group	Written as N when the group is removed; otherwise omitted.
Selected	Bool	if set	Editor flag (only Y written).

Note. Enabled across the dialect. Enabled="N" is the import/exchange delete flag, honored by the plug-in importer for nets, shapes, tables, buses, bus connectors, differential pairs, groups, and parts. On a native save it is genuinely emitted only for a deleted <Net> and a deleted <Group>; for shapes, tables, buses, bus connectors, diff pairs, and parts the disabled object is simply pruned (no element), so a written Enabled="N" comes only from hand-authored or plug-in XML. Wires carry no Enabled at all — remove a wire by dropping it from its net's <Wires> list (the list is subtree-replaced when present), or remove the whole net with its wires via Enabled="N" on the <Net>.