Topolines

Product Introduction

1. Definition: TopoLines is a web-based, Software-as-a-Service (SaaS) topographic map generator and contour line art tool. It is a specialized design application that processes real-world GeoTIFF and SRTM elevation data to produce vector and raster graphics.
2. Core Value Proposition: It exists to automate and professionalize the creation of accurate, stylized topographic contour maps for designers, cartographers, and creators. Its primary value is converting complex geospatial data into print-ready SVG files and HD PNG exports through an intuitive, no-code interface, eliminating the need for GIS software expertise.

Main Features

1. Vector SVG Export with Layer Control: TopoLines generates clean, production-ready Scalable Vector Graphics (SVG) files. The vectors are mathematically precise contour lines derived from elevation data. A key technical differentiator is the output control: users can export with contours grouped by elevation level for easy editing in Adobe Illustrator or Figma, or flattened into a single compound path for simplified use. This addresses a major pain point in design workflows where contour data is often a single, uneditable object.
2. High-Resolution Terrain Data Processing: The platform utilizes two primary digital elevation model (DEM) sources. The free tier uses NASA's 30-meter resolution SRTM (Shuttle Radar Topography Mission) data. The Pro tier unlocks higher-fidelity 10-meter resolution GeoTIFF data, resulting in crisp, accurate contour lines with significantly finer detail, which is critical for representing subtle terrain features in topographic map art.
3. Advanced Styling Engine (Gradient & Taper): Beyond basic line color, TopoLines features a dynamic styling engine. The elevation gradient tool allows users to apply a color gradient across contour lines, where color stops are mapped directly to altitude values (e.g., blue for low elevations, green for mid, white for high). The line taper feature algorithmically varies stroke weight based on elevation, creating a visual "3D layered" effect where lower contours are thicker and higher ones are thinner, adding artistic depth to the contour line art.

Problems Solved

1. Pain Point: Manually creating accurate topographic contours from raw elevation data requires expertise in Geographic Information Systems (GIS) like QGIS or ArcGIS, followed by complex, time-consuming cleanup in vector design software to achieve a usable, stylized graphic.
2. Target Audience: Indie graphic designers and illustrators creating poster art, apparel graphics, or branding elements; architects and landscape architects needing site context visuals; UI/UX designers incorporating map elements into digital products; hobbyist cartographers and educators; startups needing custom map visuals for marketing or applications.
3. Use Cases: Generating a custom topographic wall art print of a favorite mountain range; creating a unique, location-based background vector for a website hero section; producing a detailed site contour map for an architectural project proposal; quickly drafting multiple regional maps for a series of product packaging designs using the batch export feature.

Unique Advantages

1. Differentiation: Unlike generic map styling tools (e.g., Mapbox Studio) which focus on road and point-of-interest maps, TopoLines is hyper-specialized in terrain visualization. Compared to open-source GIS software, it removes all technical barriers, offering a designer-centric workflow with immediate visual feedback and Figma-ready output via direct clipboard copy.
2. Key Innovation: Its "draw a zone, style, export" workflow commoditizes high-end cartographic output. The integration of 10m GeoTIFF data into a simple browser-based tool, combined with design-oriented features like gradient-by-elevation and line taper, represents a unique fusion of professional geodata processing and accessible graphic design utility.

Frequently Asked Questions (FAQ)

1. Is TopoLines free to use for commercial projects? Yes, the contour line art you generate is yours to use commercially in projects, prints, and products. The license covers the output, not the tool's ongoing use, which may require Pro credits for advanced features.
2. What is the difference between 30m SRTM and 10m GeoTIFF terrain data? Resolution. 30m SRTM means one elevation data point every 30 meters, suitable for general shapes. 10m GeoTIFF provides a point every 10 meters, capturing significantly more detail like smaller ridges, gullies, and coastal features, resulting in more precise and crisp contour lines.
3. How does the credit system work for TopoLines Pro? Credits are consumed per export operation. One credit pack (e.g., 50 credits for ~25 exports) permanently unlocks all Pro features. Credits do not expire and are deducted based on export complexity (e.g., zone size, terrain resolution). You only pay when you need high-quality output.
4. Can I edit the SVG file after exporting from TopoLines? Absolutely. The SVG is a standard vector file. When exported "grouped by elevation," each contour level is a separate, editable path, allowing you to change colors, line weights, or delete specific levels in software like Illustrator, Inkscape, or Figma.
5. What is the maximum map area size I can generate? The free tier limits zones to 100 km². The Pro tier supports large zones up to 2000 km², enabling the creation of contour maps for entire national parks, large cities, or significant geographical regions in a single operation.