Skip to content

Properties and Text Attributes

This page covers the schematic Properties panel — page settings, component attributes, wire/net properties, and text formatting controls.

Sheet and Page Settings

When nothing is selected, the Properties panel shows page-level settings for the active SchematicDocument:

Field Description Example
Paper size A4, A3, A2, or Custom dimensions A4
Title Design title shown in the title block "Power Supply Rev B"
Company Company or author name "WireFrame Labs"
Revision Revision identifier "1.2"
Date Design date "2026-03-23"
Drawn by Author name "John Doe"
Sheet number Current sheet number / total sheets "1 / 3"
Filename Document filename "power.schxml"
Border color Color of the page border and title block Cyan / White

These fields are editable directly in the Properties panel. Changes are reflected immediately on the schematic canvas (title block and page border).

Page Properties

Component Attributes

When a single component is selected, the Properties panel shows its logical fields and text attributes:

Logical fields

Field Command Description
Designator (id) an undoable command Unique component ID (e.g., R1, U3)
Value an undoable command Electrical value (e.g., 10kΩ)
Comment an undoable command Free-text notes
Type Read-only Symbol type from library
Footprint Direct edit PCB footprint name

Text attributes

Each component carries visual text attributes that control how text appears on the canvas:

Attribute Properties Description
designatorAttribute position, rotation, fontSize, isVisible Controls the "R1" text display
valueAttribute position, rotation, fontSize, isVisible Controls the "10kΩ" text display
Pin name attributes per-pin text rendering Pin name labels on each pin
Pin number attributes per-pin text rendering Pin number labels on each pin

Each text attribute stores:

  • content — the displayed string.
  • relativePosition — offset from the component origin.
  • rotation — angle in degrees.
  • fontSize — text size.
  • isVisible — whether the text is drawn.

Editing these uses an undoable command (for content/position/size) and an undoable command (for rotation).

Aligning Attributes

For designs with many components, attribute alignment keeps the schematic clean:

  • The selection system tracks attribute references for selected text attributes.
  • Alignment functions arrange text uniformly:
Alignment Description
Align horizontally All selected attribute texts aligned to the same Y coordinate
Align vertically All selected attribute texts aligned to the same X coordinate

From the UI:

  • Use context menu commands like "Align Text Horizontally" / "Align Text Vertically".
  • Or use keyboard shortcuts if configured (see Shortcuts).

Aligned Attributes

Wire and Net Properties

When a wire or net label is selected, the Properties panel shows:

Field Editable Description
Net name Yes The net name for this wire/label (an undoable command)
Connected pins Read-only List of component pins on this net
Net classification Future Net class assignment for PCB design rules

Renaming a net label updates:

  • The component value/text for NetLabel components.
  • The underlying net name in the schematic netlist.
  • All other labels and wires on the same net are updated automatically.

Selection-Dependent Content

The Properties panel dynamically switches its content based on what is selected:

Selection state Panel content
No selection Page/sheet settings (paper size, title block)
Single component Component fields + text attributes
Multiple components Multi-edit fields (where applicable) or disabled fields
Net label Net name editing, position
Wire Net name, connected pins list
Graphic object Position, size, color, line width, layer

See Also