Feat: View animation system with smooth camera transitions

[arossti]

Summary

• New rt-animate.js module: smooth camera animation between saved views using slerp + smoothstep easing
• Per-view timing controls (T button with HiFi popup slider, 1–24s)
• Preview loop (▶/■ toggle), Batch SVG export, Animated SVG+SMIL export
• Workplan documenting Phase 6 dual-row UI (Camera vs Camera + Scene)

Changes

• modules/rt-animate.js — New module (409 lines): animateToView(), previewAnimation(), exportBatch(), exportAnimation(), _assembleSMIL()
• modules/rt-init.js — Import and init RTAnimate after ViewManager
• modules/rt-viewmanager.js — ▶ delegates to RTAnimate, T button + timing popup, transitionDuration in view data model
• index.html — Preview/Batch/Animation button row with green ▶ / red ■ icons
• art.css — Timing button styling
• Geometry documents/Animations.md — Full workplan with state machine spec, Phases 1–6, known bugs

Test plan

• Load app, save 2+ views, click ▶ — camera should slerp smoothly
• Click T on a view row — HiFi slider popup (1–24s) appears, updates timing
• Click Preview (▶) — loops through all views, toggles to ■ Stop
• Click ▶ on a specific view during Preview — exits loop, animates to that view
• Click Batch — downloads individual SVGs for each saved view
• Click Animation — downloads single animated SVG+SMIL file
• Import/export views — transitionDuration persists

🤖 Generated with Claude Code

Co-Authored-By: Andy🤦‍♂️ & Claude🤖 andy@openbuilding.ca

[github-actions]

🤖 Claude Code Review

Looking through the provided PR diff and file contents, I notice this PR only adds a markdown documentation file (Animations.md) which contains a detailed design specification for an animation system.

Since this PR only contains documentation and no actual code implementation, there are no code quality issues to report.

No issues found.

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Diff size: 56971 bytes