d2/lib/shape/shape_hexagon.go
Alexander Wang 524c089a74 oss
Co-authored-by: Anmol Sethi <hi@nhooyr.io>
2022-11-03 06:54:49 -07:00

42 lines
793 B
Go

package shape
import (
"oss.terrastruct.com/d2/lib/geo"
"oss.terrastruct.com/d2/lib/svg"
)
type shapeHexagon struct {
*baseShape
}
func NewHexagon(box *geo.Box) Shape {
return shapeHexagon{
baseShape: &baseShape{
Type: HEXAGON_TYPE,
Box: box,
},
}
}
func hexagonPath(box *geo.Box) *svg.SvgPathContext {
halfYFactor := 43.6 / 87.3
pc := svg.NewSVGPathContext(box.TopLeft, box.Width, box.Height)
pc.StartAt(pc.Absolute(0.25, 0))
pc.L(false, 0, halfYFactor)
pc.L(false, 0.25, 1)
pc.L(false, 0.75, 1)
pc.L(false, 1, halfYFactor)
pc.L(false, 0.75, 0)
pc.Z()
return pc
}
func (s shapeHexagon) Perimeter() []geo.Intersectable {
return hexagonPath(s.Box).Path
}
func (s shapeHexagon) GetSVGPathData() []string {
return []string{
hexagonPath(s.Box).PathData(),
}
}