Orienteering cartographers looking for software like OCAD that runs in a browser tab can draw, style, and prepare maps for print using Gratic. Running on Windows, macOS, and Linux without installation or seat licences, it ingests elevation tiles and open vector data directly into IOF specifications such as ISOM 2017-2. For existing archives, it imports and exports files compatible with OCAD while rendering true spot-colour print orders on screen.
Can you draw full-specification orienteering maps in a browser tab?
Drawing full-specification orienteering maps in a browser tab is now practical because web vector engines handle complex IOF point glyphs, dashed line boundaries, and area fills with exact spot-colour overprinting rules. Modern web standards process raw coordinate mathematics directly on the client machine, rendering print-ready terrain graphics without local software installations.
Traditionally, sports cartography required dedicated desktop programs like OCAD or OpenOrienteering Mapper. These standalone applications deliver precision drafting tools, but they require local system installation and administrative management across operating systems. In contrast, running a cartography engine in an ordinary browser tab means an orienteering club technical officer or field surveyor can open a map sheet on any computer immediately using an email sign-in code, requiring nothing to license.
At Gratic, we designed our browser-based vector engine specifically to handle the rigorous geometry mandated by the International Orienteering Federation. A standard terrain map is not an artistic illustration or a generic web graphic; it requires strict adherence to published drafting tolerances. The software must handle intricate point symbols like small knolls and boulders, complex dashed boundaries with precise tick spacing, and multi-layered woodland screens.
- Ingest ground data from elevation tiles and national mapping vectors
- Convert coordinate lines directly into IOF symbol definitions
- Adjust layer-bound spot inks and print overprinting rules
- Export files compatible with OCAD or send directly to press
Because cartographic rules demand exact physical dimensions on paper regardless of display resolution, the browser engine calculates line widths, dash intervals, and symbol dimensions in millimetres. When you zoom across the terrain, the vector geometry recalculates dynamically so that what appears on screen reflects exact print production requirements. Changes made to a symbol definition propagate immediately across every matching entity on the sheet without leaving the active tab.
How do web cartography workflows compare to desktop suites?
Web cartography workflows replace manual base-layer assembly and machine-specific licence management with automated open-data ingestion and universal browser access. While desktop suites like OCAD require manual import pipelines for contours and aerial imagery, web-based tools pull elevation tiles and national mapping vectors directly into standard IOF symbology.
Desktop mapping programs rely on local file structures and manual source georeferencing. A cartographer typically downloads raw LiDAR point clouds, generates elevation contours in a separate GIS program, imports CAD outlines from local authorities, and assigns symbols line by line. This process demands substantial local drive space, format conversion utilities, and dedicated workstation setup.
| Capability | Browser-based vector tools | Desktop cartography suites |
|---|---|---|
| Environment access | Any modern browser tab across Windows, macOS, or Linux | Native desktop installation on specific supported operating systems |
| Base data setup | Direct ingestion of elevation tiles and national mapping services | Manual download, external processing, and manual layer import |
| Licensing model | Email sign-in code with nothing to license | Per-seat commercial desktop licence or local open-source install |
| File interoperability | Direct read and write for OCAD-compatible files | Native proprietary binary files or local project archives |
| Symbol attribution | Dynamic layer-bound sets matching IOF specifications | Document-wide or template-based symbol palettes |
Working directly in a browser tab simplifies these setup steps. At Gratic, our pipeline connects directly to public elevation tilesets and national mapping service vector data. Cartographers select their terrain bounds, and our editor automatically imports and converts the base features into standard ISOM 2017-2 symbols. Elevation data arrives structured as workable contours, while roads, paths, and watercourses map into recognised sports symbology.
For existing map collections, interoperability remains critical. Desktop suites like OCAD maintain proprietary binary records accumulated over decades of regional club mapping. Web cartography tools preserve this investment by importing existing OCAD and OpenOrienteering Mapper files, verifying recognised symbol numbers during intake, and exporting compatible files back out when collaboration requires desktop handoff.
How do layer-bound symbol sets and spot inks function online?
Layer-bound symbol sets and spot inks function by isolating colour tables and glyph specifications within specific document layers, rather than enforcing a single global palette across the entire file. This architecture allows standard IOF specifications, custom club additions, and sprint variations to operate side by side without symbol number collisions.
In standard desktop drafting suites, symbol palettes apply globally across an entire document. Modifying a symbol definition or adding custom trail markers can inadvertently distort standard symbols elsewhere on the sheet. When managing multiple competition formats or club-specific training markers, cartographers often have to manage divergent template files.
Document layers
- Standard competition layer with ISOM 2017-2 symbols
- Club training layer with custom symbols and non-standard marks
- Base vector layer imported from national mapping services
Spot ink sequence
- Process black for cultural features and rock faces
- Spot brown for elevation contours and earth banks
- Spot blue for marshes and watercourses with overprinting enabled
- Surface yellow and green screens with calibrated print order
In Gratic, symbol sets and colour tables belong to the layer. A standard ISOM 2017-2 set can reside on one layer, while an ISSprOM sprint set or custom rogaining markers occupy an adjacent layer within the identical tab. If an existing map requires a revised symbol specification, the layer conversion interface lists every symbol currently placed on the sheet, counts the assigned entities, and remaps them in a single operation.
Printing sports maps also requires precise colour management. Screen colours rely on RGB emissive pixels, whereas competition orienteering maps depend on standardized CMYK spot inks applied in an exact physical sequence. Our web editor treats colours as physical press inks rather than generic screen shades. Cartographers set CMYK values, toggle overprinting on individual inks, and shift ink layers up or down. Shifting an ink in the table recalculates coverage instantly across the vector display, mirroring how offset litho and digital production presses deposit pigment onto paper.
Frequently asked questions
Can browser cartography tools open older OCAD club maps?
Yes, Gratic imports files from OCAD and OpenOrienteering Mapper directly into a browser tab. During import, the engine reads the embedded vector entities and displays an audit of recognized IOF symbols before placing features onto editable layers, allowing clubs to update legacy archives without desktop licences.
How does Gratic handle elevation data without external GIS software?
Gratic connects to open-source elevation tiles held tile by tile in our data pipeline. By dragging a bounding box over the target ground, the browser editor ingests elevation data directly, rendering terrain contours at the chosen interval without requiring external GIS pre-processing or local point-cloud tools.
Can you create custom non-standard symbols for school and club maps?
Yes, Gratic allows cartographers to start layers with blank symbol sets and design custom glyphs using an integrated browser vector canvas. Because symbol sets belong to layers rather than the global document, custom club symbols coexist with official ISOM specifications without triggering symbol numbering conflicts.
Is Gratic designed for municipal GIS departments or navigation apps?
No, Gratic is built specifically for sports cartographers, orienteering clubs, and adventure racing organizers creating terrain and foot-o maps. It does not serve as a general-purpose municipal GIS database or commercial navigation SDK.