SIM GEOMETRY measurements · compatibility · cost

Data & Method

Check what your result means.

Use the formulas, input definitions, and evidence grades below to decide whether a number fits your rig and your game.

Formulas

For a flat panel, horizontal and vertical spans use span = 2 × atan(size ÷ (2 × D)), where size is the visible width or height and D is the eye-to-screen-center distance.

For a curved panel, visible width is a straight chord. Chord and radius produce sagitta with s = R − √(R² − (W ÷ 2)²); the nearer edge depth is then used to calculate the physical horizontal span.

For identical triples, a top-down ray trace places the center panel and both yawed side panels. Results keep the full visible envelope, active image coverage, bezel seam occlusion, center-panel span, and requested yaw separate.

Assumptions

  • Width and height mean the visible image, not the cabinet.
  • Distance runs from the midpoint between the eyes to the center of the visible screen surface.
  • Curved screens are concave toward the viewer, and width is their visible chord rather than arc length.
  • Triple screens are identical, symmetrically placed, and use one measured or suggested yaw value.

The ±10 mm band recalculates the same rig at a nearer and farther eye point. It shows sensitivity to distance; it is not a confidence interval.

Evidence confidence

Confidence grades the evidence behind a game convention, never the physical geometry calculation.

High
Current first-party material directly supports the relevant convention and guidance.
Medium
The core mapping is supported, but one or more details rely on converging specialist sources or remain unresolved.
Low
The evidence is not strong enough for a verified scalar conversion; only cautious physical-geometry guidance is shown.

Source hierarchy

  1. Official manuals, support documents, and compatibility matrices.
  2. Official product pages.
  3. Authorized affiliate or merchant feeds for price and availability.
  4. Authorized reseller evidence when a manufacturer is silent, labeled accordingly.
  5. Independent instrumentation only when its method and source are published; it is not converted into a sensory score.

No-scrape stance

A publicly reachable page is not permission to extract it. There is no catalog crawling, Shopify /products.json collection, or automated MOZA fetching. Automated sources must be explicitly allowed; unknown endpoints fail closed. Facts are stored as concise, sourced records rather than copied page text or raw feed dumps.