Terrain Viewer
Features

Feature Overview

A map of what's in the sidebar

The sidebar is organized into a few groups. This page is a map of what each does — see the linked pages for detail.

The full sidebar, with the in-app guided tour's "The Control Panel" step spotlighting it

Full sidebar, mid guided-tour — see the Walkthrough (docs screenshots) or take it yourself in-app ↗ (interactive — same as Settings → Take the Tour)

General Settings

  • View Mode: 2D, 3D (terrain exaggeration + tilt), or Globe projection. 2D is locked top-down: a right-drag there shows a note with a Switch to 3D button.
  • Split Mode (Compare and Blend): Off, Overlay (blended A/B), or Side (independent panes, up to an 8-view grid, in both app modes) — see Split & Compare Modes
  • Project: import/export a full app-state JSON, or load a bundled preset via ?project=

Globe projection, with LRM and Sky-View Factor's Relief Visualization controls open

View Mode: Globe — LRM + Sky-View Factor, world view

Side-by-side Split Mode comparing two terrain sources with the same Hillshade + Elevation Hypso + Raster Basemap combo

Split Mode: Side — comparing two terrain sources, Combined Hillshade + Elevation Hypso — see Split & Compare Modes

Visualization Modes

Each toggles independently and stacks over the terrain/basemap — see Terrain Visualization Modes for the full list:

  • Contours + Geo Grid
  • Hillshade
  • Raster Basemap
  • Elevation Hypso (hypsometric tint)
  • Relief Visualization (LRM, Sky-View Factor, Openness, Local Dominance)
  • Terrain Analysis (Slope, Aspect, Curvature, TRI, TPI, Roughness, Blobness, Shape Index, Eigen Ratio, Orientation)
  • Lighting Effects (Matcap, Phong)
  • Background + Fog/Sky

Every mode is also a card in the Data layers picker (the layers button in the sidebar header): one picture per mode, a click turns it on or off, the sections are the sidebar's own. See Data layers picker.

The Data layers picker: every visualization mode as a card of the same view, grouped as Base, Terrain analysis, Relief visualization and Tools

The Data layers picker, one card per mode, with the modes that are on ticked

Bookmarks

Save the current viewport and every visualization setting as a named, thumbnailed bookmark — see Bookmarks.

Sources

Options & Tools

  • Per-mode option panels (e.g. Hillshade method/exaggeration)
  • Drawing (TerraDraw-based sketch/measure tools)
  • Elevation Picker
  • Animation (fly-through/keyframe export)
  • Sources Coverage (now under Terrain and Basemap, see Coverage Overlays)
  • About, the last section: credits, the build day and commit (linked to GitHub), and Is this the latest version?, which asks GitHub for the newest commit on main (what the website serves) and for the desktop release, and says whether this build is behind (reload the page to update the website; see Desktop for the bundles)

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