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Style Editor Tool
Overview
The Style Editor is a sophisticated layer visualization management system that provides comprehensive customization of Feature Layer and Map Image Layer visual properties. This advanced tool integrates with Horizon's unified layer management system to deliver professional-grade styling capabilities, including dynamic symbology modification, advanced labeling configuration, transparency control, and real-time style application for enhanced cartographic presentation and spatial data visualization.
Interface Access
Opening Editor
- Access Layer Panel
- Locate Style Editor icon
- Click to open panel
Supported Layer Types
- Feature Layers — All geometry types (point, polyline, polygon)
- Map Image Layers — Styleable sublayers with renderers are listed in a sublayer dropdown
INFO
When a Map Image Layer is selected, the Style Editor filters to show only sublayers that have a renderer and geometry type. Raster sublayers are excluded.
Layer Styling
Style Selection
- Choose a layer from the dropdown
- Verify layer visibility
- The editor auto-detects geometry type and displays appropriate controls
Polygon Style Properties
- Fill colour with alpha/transparency channel (RGBA)
- Outline colour with alpha channel
- Outline width — 0 to 10 pixels
- Outline style — same 11 dash patterns as polylines (see table below)
- Fill style — 8 patterns available:
| Fill Style | Description |
|---|---|
| solid | Solid fill |
| backward-diagonal | Diagonal lines (top-left to bottom-right) |
| cross | Cross-hatch pattern |
| diagonal-cross | Diagonal cross-hatch |
| forward-diagonal | Diagonal lines (bottom-left to top-right) |
| horizontal | Horizontal lines |
| vertical | Vertical lines |
| none | No fill (outline only) |
Polyline Style Properties
- Line colour with alpha channel
- Line width — 0 to 10 pixels
- Line style — 11 dash patterns:
| Line Style | Description |
|---|---|
| solid | Continuous line |
| dash | Standard dashes |
| dash-dot | Dash-dot alternating |
| dot | Dotted line |
| long-dash | Long dashes |
| long-dash-dot | Long dash with dot |
| long-dash-dot-dot | Long dash with two dots |
| short-dash | Short dashes |
| short-dash-dot | Short dash with dot |
| short-dash-dot-dot | Short dash with two dots |
| short-dot | Short dots |
Line Markers
Polylines support optional endpoint markers:
- Marker styles: arrow, circle, square, diamond, cross, x
- Marker placement: begin, end, or begin-end
- Marker colour with alpha channel
Point Style Properties
- Marker style — 6 shapes: circle, cross, diamond, square, triangle, x
- Marker size — 0 to 50 pixels
- Marker colour with alpha channel
INFO
PictureMarkerSymbols (image-based markers) are detected but cannot be edited through the Style Editor.
Applying Changes
- Adjust desired properties
- Preview changes
- Click Update
UPDATE RESTRICTIONS
The Update button is disabled for FPP, Plan Burn, Wildfire, and Cart Route editor layers. Only Sketch editor layers and non-editor layers can be updated directly.
Unique Value Renderer Support
When a layer uses a UniqueValueRenderer (features styled by a field value such as species type or status code), the Style Editor automatically:
- Detects the unique value renderer
- Populates a Legend Value dropdown with all unique values
- Allows you to select a specific value and modify its symbol independently
- Clones symbols internally to prevent shared references between values
This enables per-category styling without affecting other categories in the same layer.
Symbol Presets
For editor layers, the Style Editor provides predefined symbol presets that match standard cartographic conventions:
| Preset | Description | Used By |
|---|---|---|
| BlackArrow | Black solid line with arrow marker at end | Sketch, FPP, Cart Route |
| StripLight | Red solid line with arrow marker | Plan Burn, Wildfire |
| SpotLight | Red dashed line with arrow marker | Plan Burn, Wildfire |
| ActiveFireEdge | Red short-dot line | Wildfire |
| PinkArrow | Black solid line with arrow marker | Cart Route |
| Custom | Manual configuration | All |
The editor auto-detects the appropriate preset based on the layer type and TYPE_ID. You can switch to Custom to configure properties manually.
INFO
CIM symbols (complex server-defined symbols) are read-only — a notice is displayed when a CIM symbol is detected. For non-Sketch server symbols, you can override with presets.
Label Editing
Label Properties
- Font size — 1 to 20 pixels
- Font weight — normal, bold, bolder, lighter
- Font style — normal, italic, oblique
- Font decoration — none, underline, line-through
- Label colour with alpha channel
- Deconfliction strategy — none or static
Halo Properties
- Halo colour with alpha channel (default: transparent)
- Halo size — 0 to 10 pixels in 0.5-pixel steps
Placement Rules
Label placement options vary by geometry type:
Point layers (9 placements):
| Placement | Position |
|---|---|
| above-center | Above, centred |
| above-left | Above, left-aligned |
| above-right | Above, right-aligned |
| center-center | Centred on feature |
| center-left | Centred, left-aligned |
| center-right | Centred, right-aligned |
| below-center | Below, centred |
| below-left | Below, left-aligned |
| below-right | Below, right-aligned |
Line layers (3 placements):
| Placement | Position |
|---|---|
| above-along | Above the line, following curvature |
| center-along | Centred on the line |
| below-along | Below the line, following curvature |
Polygon layers (1 placement):
| Placement | Position |
|---|---|
| always-horizontal | Horizontal text at polygon centre |
Troubleshooting
| Issue | Solution |
|---|---|
| Changes not visible | Check layer visibility |
| Style options unavailable | Verify layer type support |
| Label options missing | Confirm label data existence |
| Update button disabled | FPP, Plan Burn, Wildfire, and Cart Route layers cannot be updated |
| CIM symbol read-only notice | CIM symbols cannot be edited; use presets for override |
| No sublayers in dropdown | Only sublayers with renderers and geometry types are shown |