Accurate Scaled Map Printing in the Browser with Inkmap
TrueGIS generates crisp, to-scale printouts directly in your browser. The key is Inkmap, a client-side map rendering library that converts your current map view and vector overlays into a page-sized canvas at a known DPI and scale.
Scale vs DPI: why both matter
- Map scale (e.g., 1:5,000) sets the ground distance represented by one unit on paper.
- DPI controls rasterization density when the page is drawn; higher DPI preserves fine linework.
TrueGIS uses sensible defaults so you don’t need to tune DPI—just choose a scale and orientation that fits your area of interest.
The print frame preview
Toggle Show Print Area to see the exact page coverage overlaid on the map. Pan/zoom until the frame captures what you need at your chosen scale.
Landscape vs Portrait
- Landscape: corridors running east-west, wider extents.
- Portrait: north-south routes, tall coverage.
Vector styling tips for print
- Use semi-transparent fills so the basemap remains legible.
- Reduce stroke width before printing if lines look too bold at small scales.
- Prefer high-contrast feature colors for grayscale printers.
Quick Print vs Scaled Print
- Quick Print: exports the current view fast.
- Scaled Print: honors your scale, orientation, and print frame for precise layouts.
Try it now: open TrueGIS Maps, switch on Show Print Area, pick a scale, and hit Scaled Print for a clean, to-scale output.