🔎Analyse raster data
Overview
Raster data in Ellipsis Drive can be analysed directly in the viewer or through advanced processing workflows using Ellipsis Map Engine.
This page focuses on interactive analysis within the viewer, including spatial queries and band-based calculations. A short video walkthrough is available below.
1. Spatial queries (area-based analysis)
You can analyse raster data by selecting an area of interest directly in the viewer by drawing a point, line or polygon.
Within a selected area, you can compute statistics such as:
minimum or maximum value
mean value or band-specific statistics
generating a histogram
This enables fast inspection of raster values without external processing.
2. Raster calculations (band algebra)
In addition to spatial queries, Ellipsis Drive supports on-the-fly raster calculations using band expressions.
This allows you to derive new insights directly in the viewer.
Example use cases include:
NDVI (e.g. vegetation index)
band ratios
custom raster expressions
These calculations are applied dynamically and do not modify the underlying dataset.
3. Advanced analysis (Ellipsis Map Engine)
For large-scale or computationally intensive analysis workflows, Ellipsis Map Engine can be used to run:
distributed processing of raster datasets
multi-layer analysis
reproducible analytical workflows
This functionality is API-driven and intended for advanced or automated use cases.
👉 See Ellipsis Map Engine documentation for more details.
Key concept
Analysis in Ellipsis Drive exists in two layers:
Interactive analysis in the viewer (queries + band algebra)
Advanced compute via Map Engine (programmatic processing)
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