tangl-viewer

---

Class: SelectionOverlay

Canvas overlay that draws the lasso / box selection shape on top of the viewer.

Visual convention:

• Enclosure (left→right): solid outline, blue fill
• Intersection (right→left): dashed outline, green fill

Methods

draw()

draw(points, behavior?): void

Draw the selection shape from NDC points ([-1,1] range).

Parameters

points

number[]

flat array [x0, y0, z0, x1, y1, z1, ...]

behavior?

SelectionBehavior

"enclosure" for solid blue, "intersection" for dashed green

Returns

void