Environment

Explore daylight and water models with the values you supply. These estimates are not live measurements or a substitute for a site survey.

2 tools in this category.

• Daylight in a room

  Estimates the average daylight factor of a room with the simplified average formula: window area, glass transmittance, maintenance factor, visible sky angle, total surface area and average reflectance. It shows window and floor areas, the window-to-floor ratio, the room index, an estimate for the room centre and a verdict using the common rule (below 2% is not enough, 2–5% is acceptable, above 5% is good).

• Hydrological raster preparation

  Prepares an elevation grid for a hydrological model with own steps: it fills depressions with a priority-flood algorithm with a small slope, derives flow direction with the D8 method using the steepest drop per distance, computes downstream flow accumulation and marks streams above a threshold. It shows the number of cells, filled depressions and their volume, the number of sinks and outlets, the largest accumulation with its cell, stream cells and coverage, plus a ready CSV.