Viewing distance from screen size
API · /viewdistance-api
Viewing Distance API
TV and projector viewing-distance maths as an API, computed locally and deterministically. The distance endpoint takes a screen diagonal (inches or centimetres) and aspect ratio and returns the screen width and height and the recommended seating distance for each standard — SMPTE's 30° minimum viewing angle (the farthest comfortable seat), THX's 36° recommendation and THX's 40° maximum (the closest) — in inches, feet, centimetres and metres, plus an overall recommended range. Pass a resolution (720p, 1080p, 1440p, 4K or 8K) and it also gives the pixel-acuity distance, the point beyond which a 20/20 viewer can no longer resolve individual pixels, so moving closer stops adding detail. The screensize endpoint reverses it: from a seating distance it recommends the screen diagonal for each standard. The fov endpoint gives the horizontal field of view for a screen at a distance, with a verdict on whether it falls in the recommended range. The geometry is exact: width = diagonal × aspect-width / hypot(aspect), and distance = (width/2) / tan(angle/2). Everything is computed locally and deterministically, so it is instant and private. Ideal for home-theatre and AV apps, TV and monitor retail tools, room and seating planners, and AV-installer calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is viewing-distance geometry; for pixel density (PPI) from a resolution use a PPI API.
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 81 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 3,722
- attiva
- Chiamate totali
- 44
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 13,235 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 13,235 calls/month
- 2 req/sec
- Distance + screen size + FOV
- No credit card
Starter
€14.75 /mese
- 22,850 chiamate/mese
- 8 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 22.85k calls/month
- 8 req/sec
- SMPTE & THX, pixel acuity
- Email support
Pro
€34.65 /mese
- 278,500 chiamate/mese
- 20 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 278.5k calls/month
- 20 req/sec
- Home-theatre / AV pipelines
- Priority support
Mega
€72.65 /mese
- 1,435,000 chiamate/mese
- 50 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.435M llamadas/mes
- 50 req/seg
- Escala de plataforma
- SLA dedicado
Costruito da
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Domande frequenti
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Come ottengo una chiave API per Viewing Distance API?
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Viewing Distance API è conforme al GDPR?
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Frammenti di codice
Iscriviti per ottenere una chiave API, quindi chiama qualsiasi percorso sotto il tuo slug.
curl https://api.oanor.com/viewdistance-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/viewdistance-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/viewdistance-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/viewdistance-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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