Add Properties-panel Constraints/Parameters sections, a constraint-pill

value toggle, and redesigned constraint-ribbon icons Properties panel: - New "Parameters" section (shown with no selection) listing every named parameter with inline name/formula editing, add, and delete, backed by new PropValue::ParamRow/ParamAddRow and command_driver handlers (resolve_named_parameter_edit, on_prop_param_commit/_delete/_add_new). A fresh parameter's formula now defaults to "1", not "0" — a 0-length seed value is a genuine solver singularity for a Distance constraint driven by that parameter, with no defined direction to grow back out of. - New "Constraints" section (shown for a single selected entity) listing every constraint touching it as a clickable PropValue::EntityLink that selects the linked entities in the viewport, danger-tinted when the constraint conflicts. Constraint pills: - New Options > General toggle, "Show values and parameter names on constraint markers" (on by default, persisted). Off, every pill shows just its bare glyph instead of glyph+driven-value/parameter-name — the glyph alone is enough to see a constraint is present, without the value text covering nearby geometry on a dense sketch. Constraint-ribbon icons: - Replaced all 18 unicode/letter glyph icons (including the plain "F", "L", "M", "S" letters) with proper SVGs under assets/icons/constrain/, matching the Modify section's two-color style (#B4B6B9 white / #6DB7ED blue, consistent stroke width). Tangent reuses the Draw section's white-arc-plus-blue-dots motif. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-10 23:16:11 +02:00
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