55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
package shape
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import (
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"oss.terrastruct.com/d2/lib/geo"
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"oss.terrastruct.com/d2/lib/svg"
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)
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type shapeHexagon struct {
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*baseShape
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}
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func NewHexagon(box *geo.Box) Shape {
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return shapeHexagon{
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baseShape: &baseShape{
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Type: HEXAGON_TYPE,
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Box: box,
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},
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}
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}
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func (s shapeHexagon) GetInnerBox() *geo.Box {
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width := s.Box.Width
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tl := s.Box.TopLeft.Copy()
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tl.X += width / 4.
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width /= 2.
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return geo.NewBox(tl, width, s.Box.Height)
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}
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func hexagonPath(box *geo.Box) *svg.SvgPathContext {
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halfYFactor := 43.6 / 87.3
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pc := svg.NewSVGPathContext(box.TopLeft, box.Width, box.Height)
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pc.StartAt(pc.Absolute(0.25, 0))
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pc.L(false, 0, halfYFactor)
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pc.L(false, 0.25, 1)
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pc.L(false, 0.75, 1)
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pc.L(false, 1, halfYFactor)
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pc.L(false, 0.75, 0)
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pc.Z()
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return pc
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}
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func (s shapeHexagon) Perimeter() []geo.Intersectable {
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return hexagonPath(s.Box).Path
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}
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func (s shapeHexagon) GetSVGPathData() []string {
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return []string{
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hexagonPath(s.Box).PathData(),
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}
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}
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func (s shapeHexagon) GetDimensionsToFit(width, height, padding float64) (float64, float64) {
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totalWidth := 2 * (width + 2*padding)
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return totalWidth, height + 2*padding
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}
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