Floor Plan Compare Slider

Comparing revisions traditionally means plotting both versions, holding them against a window, or flipping between two PDFs. Small moves such as a demised wall shifted 300mm, or a corridor reallocated to a tenant, are exactly the changes that get missed, and they are the ones that change billable area.

• Two posted revisions of the same floor are loaded from the drawing history as aligned raster tiles.
• A slider handle wipes between revision A and revision B in place, so geometry stays registered at the same scale and origin.
• Side-by-side and overlay modes are both available; overlay is used to spot boundary drift, side-by-side to read text IDs.
• Changed spaces carry legend colour coding, so recalculated areas are visible without opening a report.

Eliminates manual overlaying of paper prints or PDF drawing comparisons, and gives facility managers a defensible visual record of what changed between revisions.