Estimate Pan Positions on a Magnified Canvas
A fixed canvas can require many viewport positions when magnified. Estimate non-overlapping coverage to expose navigation burden, not to claim a reader will follow a perfect scan path.
1 · canvas | content width pixels | content height pixels
FIRST-LOAD
Input is processed locally and a draft is saved automatically in this browser profile when storage is available. Reset to sample clears that draft; Pro history has its own clear button. A state link encodes your inputs in its URL: share only non-sensitive rows. Browser history, clipboard and anyone receiving the link may retain it. Optional AI use below leaves this device; it is not required.
Data note: Everything runs in this browser tab on the viewport mosaic: your canvas | content width pixels | content height pixels stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Perspective: Before: Partial edge tiles can require additional positions. After: the viewport mosaic shows the working beside each named row so the reader can change the assumption and inspect the consequence.
2 · Read the viewport mosaic
Ideal geometric coverage, not a usability score or an accessibility standard. It excludes overlap, orientation aids and actual movement paths.
Paid layer: viewport mosaic print and history
one-time step · the free reading above stays complete
Free tier
- one complete viewport mosaic run in the app
- three samples plus unlimited article-demo runs
- unwatermarked result text and an explicit, user-triggered state link
What $4 one-time adds
- print the viewport mosaic with its row workings
- CSV of viewport positions and row explanations
- last five reading summaries saved in this browser profile
$4 once for repeated filing of the viewport mosaic, not for a better answer. Illustrative time basis: avoiding one five-minute manual reformat per saved reading; no market-price or guaranteed-savings claim.
Local history (this device)
- No saved runs yet — your first run files here.
Checkout is unavailable until a payment link is configured. The optional unlock is browser-local, profile-scoped and best-effort, not server-verified access. Clearing browser data can remove it; there is no account or cross-device recovery.
Boundary and sources
Ideal geometric coverage, not a usability score or an accessibility standard. It excludes overlap, orientation aids and actual movement paths.
- Method: The 1200 by 900 map needs three columns and three rows at 400 pixels. Multiply rounded column and row counts; dividing total area alone misses partial edge tiles.
- All sample records are invented examples. The app does not fetch measurements, policies, files or personal records.
- Google’s official pricing page, fetched 2026-09-27, lists free-tier access including AI Studio. Optional formatting only; limits and availability can change. Free-tier content may be used to improve products. Never paste private records there.
Mechanism: competence-autonomy-loop
Optional AI formatting, not calculation
For this viewport mosaic, use the free AI Studio interface only if available to you, with no paid API key. Manual entry completes the same workflow for free. Supply only fictional or non-sensitive notes. Review its output against the source; never paste unresolved questions into the numeric rows.
Format my non-sensitive notes for a viewport mosaic. Return plain rows only: canvas | content width pixels | content height pixels. Preserve supplied quantities exactly. Do not guess missing values; list questions separately. Do not calculate or add advice. I will check every row before pasting into the local tool.
Accepted schema: canvas | content width pixels | content height pixels. No AI response is executed as code.