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calc

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This commit is contained in:
Alexander Wang 2025-03-13 20:14:40 -06:00
parent e9aee89a12
commit 0483442182
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GPG key ID: BE3937D0D52D8927
1 changed files with 12 additions and 15 deletions
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27
lib/shape/shape_c4_person.go
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@ -8,9 +8,6 @@ import (
"oss.terrastruct.com/util-go/go2" "oss.terrastruct.com/util-go/go2"
) )
// Optimal value for circular arc approximation with cubic bezier curves
const kCircleApprox = 0.5522847498307936 // 4*(math.Sqrt(2)-1)/3
// Constants to match frontend implementation // Constants to match frontend implementation
const ( const (
C4_PERSON_AR_LIMIT = 1.5 C4_PERSON_AR_LIMIT = 1.5
@ -75,13 +72,13 @@ func bodyPath(box *geo.Box) *svg.SvgPathContext {
pc.StartAt(pc.Absolute(float64(bodyLeft), bodyTop+cornerRadius)) pc.StartAt(pc.Absolute(float64(bodyLeft), bodyTop+cornerRadius))
pc.C(true, 0, -kCircleApprox*cornerRadius, kCircleApprox*cornerRadius, -cornerRadius, cornerRadius, -cornerRadius) pc.C(true, 0, -4*(math.Sqrt(2)-1)/3*cornerRadius, 4*(math.Sqrt(2)-1)/3*cornerRadius, -cornerRadius, cornerRadius, -cornerRadius)
pc.H(true, bodyWidth-2*cornerRadius) pc.H(true, bodyWidth-2*cornerRadius)
pc.C(true, kCircleApprox*cornerRadius, 0, cornerRadius, kCircleApprox*cornerRadius, cornerRadius, cornerRadius) pc.C(true, 4*(math.Sqrt(2)-1)/3*cornerRadius, 0, cornerRadius, 4*(math.Sqrt(2)-1)/3*cornerRadius, cornerRadius, cornerRadius)
pc.V(true, bodyHeight-2*cornerRadius) pc.V(true, bodyHeight-2*cornerRadius)
pc.C(true, 0, kCircleApprox*cornerRadius, -kCircleApprox*cornerRadius, cornerRadius, -cornerRadius, cornerRadius) pc.C(true, 0, 4*(math.Sqrt(2)-1)/3*cornerRadius, -4*(math.Sqrt(2)-1)/3*cornerRadius, cornerRadius, -cornerRadius, cornerRadius)
pc.H(true, -(bodyWidth - 2*cornerRadius)) pc.H(true, -(bodyWidth - 2*cornerRadius))
pc.C(true, -kCircleApprox*cornerRadius, 0, -cornerRadius, -kCircleApprox*cornerRadius, -cornerRadius, -cornerRadius) pc.C(true, -4*(math.Sqrt(2)-1)/3*cornerRadius, 0, -cornerRadius, -4*(math.Sqrt(2)-1)/3*cornerRadius, -cornerRadius, -cornerRadius)
pc.Z() pc.Z()
return pc return pc
@ -99,23 +96,23 @@ func headPath(box *geo.Box) *svg.SvgPathContext {
pc.StartAt(pc.Absolute(headCenterX, headCenterY-headRadius)) pc.StartAt(pc.Absolute(headCenterX, headCenterY-headRadius))
pc.C(false, pc.C(false,
headCenterX+headRadius*kCircleApprox, headCenterY-headRadius, headCenterX+headRadius*4*(math.Sqrt(2)-1)/3, headCenterY-headRadius,
headCenterX+headRadius, headCenterY-headRadius*kCircleApprox, headCenterX+headRadius, headCenterY-headRadius*4*(math.Sqrt(2)-1)/3,
headCenterX+headRadius, headCenterY) headCenterX+headRadius, headCenterY)
pc.C(false, pc.C(false,
headCenterX+headRadius, headCenterY+headRadius*kCircleApprox, headCenterX+headRadius, headCenterY+headRadius*4*(math.Sqrt(2)-1)/3,
headCenterX+headRadius*kCircleApprox, headCenterY+headRadius, headCenterX+headRadius*4*(math.Sqrt(2)-1)/3, headCenterY+headRadius,
headCenterX, headCenterY+headRadius) headCenterX, headCenterY+headRadius)
pc.C(false, pc.C(false,
headCenterX-headRadius*kCircleApprox, headCenterY+headRadius, headCenterX-headRadius*4*(math.Sqrt(2)-1)/3, headCenterY+headRadius,
headCenterX-headRadius, headCenterY+headRadius*kCircleApprox, headCenterX-headRadius, headCenterY+headRadius*4*(math.Sqrt(2)-1)/3,
headCenterX-headRadius, headCenterY) headCenterX-headRadius, headCenterY)
pc.C(false, pc.C(false,
headCenterX-headRadius, headCenterY-headRadius*kCircleApprox, headCenterX-headRadius, headCenterY-headRadius*4*(math.Sqrt(2)-1)/3,
headCenterX-headRadius*kCircleApprox, headCenterY-headRadius, headCenterX-headRadius*4*(math.Sqrt(2)-1)/3, headCenterY-headRadius,
headCenterX, headCenterY-headRadius) headCenterX, headCenterY-headRadius)
return pc return pc