sdf/transforms

src/sdf/transforms.tur

spatial and morphological modifiers for SdfExpr trees.

Since: Phase 1

defn

sdf-translate

(sdf-translate [e : int tx : float ty : float tz : float] :)

translate an SDF by vector (tx,ty,tz).

Parameters

e		child SdfExpr handle
		tx ty tz -- translation vector

Returns

Transformed SdfExpr handle.

Example

(sdf-translate (sdf-sphere 0.0 0.0 0.0 1.0) 2.0 0.0 0.0)

Since: Phase 1

defn

(sdf-offset [e : int d : float] :)

expand (d > 0) or shrink (d < 0) a shape by a constant.

Parameters

e		child SdfExpr handle
d		offset distance (positive = grow, negative = shrink)

Returns

Modified SdfExpr handle.

Example

(sdf-offset (sdf-box -0.5 -0.5 -0.5  0.5 0.5 0.5) 0.1)  ; rounded box

Since: Phase 1

defn

(sdf-shell [e : int thickness : float] :)

keep only a `thickness`-wide shell around the surface.

Parameters

e		child SdfExpr handle
thickness		shell half-thickness (> 0)

Returns

Modified SdfExpr handle.

Example

(sdf-shell (sdf-sphere 0.0 0.0 0.0 1.0) 0.05)

Since: Phase 1