Features

From choosing a site to a printed board: terrain, context, analysis, a site plan and the files for your CAD, BIM and GIS software, in the browser.

Site and terrain

Pick any place on Earth and get its ground and surroundings in seconds.

Area: Search a place, paste coordinates or draw a rectangle up to 150 km², with exact width, height and centre.
Terrain and contours: Elevation from Mapterhorn (Copernicus GLO-30 and national models); contours from 0.25 m to 100 m with index lines, labels and smoothing. About 30 m resolution in most of the world, down to about 1 m where national data exists.
Context from OpenStreetMap: Buildings with heights, roads by class, paths, railways, water, vegetation and trees, kept for 7 days and refreshed on request.
Trees everywhere: Tree cover from ESA WorldCover 10 m plus OpenStreetMap woods and parks, kept clear of buildings and roads.
3D: Terrain with adjustable exaggeration, bridges as decks on columns, flat water, map, satellite or plain basemaps.

The diagrams of a site analysis board, drawn from the data, with legends and scale.

Sections: Up to 12 sections with buildings cut on the line and trees and buildings in elevation behind, exported to DXF, PDF, SVG and CSV.
Sun and shadow: A solid site model lit by the real sun for any date and time, with the sun path; insolation sheets for the solstices and equinoxes.
Wind: Wind roses from five years of hourly ERA5 data (Open-Meteo), for the whole year or one season.
Site analysis diagrams: Figure-ground, streets and green space, building heights, use and age, land use, walking distance, modelled road noise, shadows, hours of direct sun, elevation, slope and aspect, and a 3D sketch.
Parcel rules: Area, sides and angles of a plot, setbacks per side, buildable area, and coverage, floor area ratio and height limits with local names (K-1/K-2 in Georgia, FAR in the US, GRZ/GFZ in Germany).

A drawing board in metres over the site, with the precision of CAD and a presentation look without Photoshop.

CAD precision: Typed lengths and angles, offsets, Shift for 15°, snapping to corners, midpoints, edges and the grid, rotate around a base point as in AutoCAD.
Layers: Add, rename, lock, hide, colour and order layers; copy an imported DXF, KML, GeoJSON or shapefile into editable layers.
Site elements: Buildings with height and roof, trees and rows of trees, parking rows, ground finishes, and an eraser for the generated surroundings.
Presentation view: Textures, lit tree canopies, shaded roofs and soft shadows from a chosen sun, ready for a board.
Sheets: A4 to A0 at 1:50 to 1:10,000 or fitted. The drawing view is a true vector PDF or SVG with selectable text; images at 72 to 600 dpi.

Files that open where you work, at a true scale and with their coordinates stated.

CAD: DXF R12 2D on named layers in metres, and DXF 3D faces.
Drawings: Vector PDF and SVG plans at a true scale with title block, north arrow and scale bar, A4 to A0.
BIM and 3D: IFC 4 with a map conversion to UTM, OBJ (Z-up or Y-up) and watertight STL for printing.
GIS: GeoJSON in WGS 84; local coordinates from the south-west corner or the centre, or UTM.
Your files: Import DXF, GeoJSON, KML, KMZ and shapefiles with their coordinate system; they are saved with the project.