The stretch goal
One pocket at a time, an island remembers itself.
A digital twin is a model of a real place that stays true to it: the shapes, the sizes, the changes over time. Cities pay millions for them. The Straddie version starts smaller and more honest: locals scan the pockets they care about, a skate park, a hall, a stretch of foreshore, and those pockets slowly nest together into something no consultant could ever deliver, because it is made by the people who actually know the place.
Already planted
The twin has already started, with photos.
Before any laser scan, the ground layer is photography. Seventy-seven real, GPS-mapped 360° panoramas across two Dunwich sites are already public in two open data labs: the ferry terminal precinct and the Ballow Road waterfront lot. Anyone can open them today, walk the sites on screen, and check the claim. That is the seed of the twin, captured by hand, published for free.
The capture ladder, rung by rung
Each pocket of the island climbs the same ladder, and each rung is recorded as done or not-yet, never fudged: photo (360° panoramas, done for two sites), photogrammetry (3D from overlapping photos), lidar (laser scans, the subject of the scan page), drone (rooflines and layout, needs CASA rules and local permission), open-data (a published public data room), and modelled (a navigable 3D model). A pocket's record card always says exactly which rungs are real. For the modelled rung, Straddie Digital Twin Builders already carries plain-English prompt builders for twin scenes.
The proposal
Twin the public pockets that matter.
Not the whole island at once. A handful of public places people actually use, scanned properly, owned by the community, useful from day one. Candidates that come up again and again: the Point Lookout skate park, the Windemere bowls, community halls, the foreshore parks with their tables and barbecues. Each pocket gets the full treatment from the scan page: map pin, web model, archive model, engineering pack. Nothing here has been scheduled or agreed; it is a direction of travel, offered for discussion.
- ProposalScan afternoons as community events. A working bee where the tools are phones. An hour of scanning is an hour given to community, which is exactly what the C-hour page is about.
- ProposalEach pocket published open. Models and drawings in open formats, free for the community, with commercial rights held locally rather than drifting to whoever hosts the cloud.
- ProposalChange tracked over years. Rescan after storms, after upgrades, after crowds. The twin becomes the island's memory of its own public places.
Within sight
A living model of the whole island.
The pockets join into a whole-island model detailed enough to plan in, rehearse storm responses in, teach in and film in, hosted on computers the community owns, giving every tender, grant application and planning conversation a shared, checkable picture of what exists. Calling that a far-off dream would undersell how fast this ground is moving. Everything on this site, the working pipeline, the app source, the model sites, was put together in months by one local working with AI tools anyone can hire. Teach a handful of neighbours the capture craft, add the shared compute room from the co-op page, and the timeline reads in seasons, not decades. What keeps it honest is the labelling: each pocket records exactly what has been captured and verified, and the whole-island claim is only ever the sum of those receipts.
Not a fringe idea
Three levels of government are already building twins.
Digital twins of places stopped being science fiction for governments years ago, and south-east Queensland is now one of the busiest corners of that map. All three levels are in, with real money committed. The community layer this page proposes is not asking anyone to believe in something strange; it is the missing bottom rung of a ladder already being built from the top.
Layer by layer
Who is building what.
Federally, Geoscience Australia's Digital Atlas of Australia is assembling the nation's open map layers in one place, its ELVIS portal already serves free aerial laser elevation data anyone can download today, Minjerribah included, and the national spatial council ANZLIC published shared principles for spatially enabled digital twins back in 2021. At state level, Queensland commissioned CSIRO's Data61 to design a digital twin framework and then build a working prototype, has investigated a twin spanning Brisbane, the Gold Coast and the Sunshine Coast with a business case for an SEQ digital twin described as one of the largest continuous 3D datasets in the country, and already publishes its open spatial layers through Queensland Globe. The SEQ City Deal recommends the regional twin outright, and the region's first Smart Region Digital Plan launched in April 2026. At council level, Brisbane has run Virtual Brisbane for a decade and a half of development assessment.
Here is the thing none of those programs will ever do: scan a picnic table on Home Beach. Government twins are built from aircraft and databases, top-down, at the scale of regions. A community layer is fine-grained, ground-truthed and owned by the people who live here, and because this work uses the same open standards, the modern Australian map grid and open file formats, every community pocket can snap into the bigger picture the moment both sides want it to. The pockets do not duplicate the government spend. They complete it.
Receipts
- SEQ City Deal, Council of Mayors (SEQ) and the signed City Deal document
- Virtual Brisbane, Brisbane City Council
- Queensland Globe, the state's open spatial data portal
- Digital Atlas of Australia and ELVIS elevation data, Geoscience Australia
- ANZLIC principles for spatially enabled digital twins
How pockets snap into the bigger picture
Each scan lives in its own local coordinate frame, documented on its record card. Joining pockets to each other, or to government layers, needs shared anchor points measured in the common map grid: GDA2020, map zone 56 for this island, the same standard the state's own layers use. Phone GPS is only accurate to a few metres, good enough to place a pin, never good enough to stitch geometry, so real joining uses surveyed anchors, overlapping scans, or the free state elevation data as a reference surface. Pockets are useful alone from day one; stitching is there when wanted.