# Radar — where the country is buying

> Every public tender in Portugal on one page, searchable by sector and district, on a map drawn in ridge lines whose peaks rise with what is being bought.

- **Source:** https://amplifiedcreations.com/lab/radar
- **Publisher:** amplified creations (https://amplifiedcreations.com/)
- **Published:** 2026-09-30
- **Language:** en
- **Stack:** SVG, Canvas 2D, Vanilla JS, Natural Earth, Open data
- **Live demo:** https://ptthe13.github.io/amplifiedlabs/radar/
- **Source code:** https://github.com/PTthe13/amplifiedlabs/tree/main/radar

---

**Radar** puts every notice our tender radar read — 1,399 of them, from Portal BASE, Diário da República and TED — on one page. Search titles and buyers, filter by any of 41 sectors or by the digital & communication group, click a district, and sort by newest, closing soonest or value. Every notice links to its official announcement.

## A map that reshapes itself

Portugal is drawn in ridge lines. Each line is a slice of the country, and its peaks rise with the tenders in view: Lisbon and Porto are the mountains. Pick a sector or type a word and the landscape redraws — search «vídeo» and the peaks move to where video is being bought. Click a district to light its ridges and read only its notices; hover a notice and its district lights up.

## How it works

- The district outlines (Natural Earth, public domain) are painted once to an offscreen canvas as a lookup mask, so the page knows which district owns every point of the country.
- Each row of the map is a line whose height is a sum of peaks centred on each district, weighted by its share of the tenders in view. Rows are filled before they are stroked, so nearer rows hide the ones behind.
- District comes from the buyer's name; national bodies — ministries, agencies, the armed forces — are grouped apart. Sector comes from the notice's CPV code.
- No build step and no dependencies: plain SVG, one canvas and vanilla JavaScript.

The data is a snapshot, and deadlines count from the day it was taken. The radar behind it is the tool we built so we stop missing tenders that fit the studio; the story is in [the tender radar that found nothing on day one](https://amplifiedcreations.com/journal/tender-radar-day-one). It detects; it never submits anything.

---

Published by amplified creations, an independent technology studio in Leiria & Lisboa, Portugal. Contact: info@amplifiedcreations.com · More: https://amplifiedcreations.com/llms.txt