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change circle fit formula

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This commit is contained in:
Alexander Wang 2024-10-30 19:54:11 -06:00
parent 3d3925447f
commit 0570f5cd7e
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GPG key ID: BE3937D0D52D8927
1 changed files with 11 additions and 7 deletions
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18
lib/shape/shape_circle.go
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@ -37,18 +37,22 @@ func (s shapeCircle) AspectRatio1() bool {
}
func (s shapeCircle) GetDimensionsToFit(width, height, paddingX, paddingY float64) (float64, float64) {
length := math.Max(width+paddingX, height+paddingY)
diameter := math.Ceil(math.Sqrt2 * length)
effectiveWidth := width + 2*paddingX
effectiveHeight := height + 2*paddingY
diameter := math.Ceil(math.Max(effectiveWidth, effectiveHeight))
return diameter, diameter
}
func (s shapeCircle) GetInsidePlacement(width, height, paddingX, paddingY float64) geo.Point {
project45 := 1 / math.Sqrt2
r := s.Box.Width / 2
// we want to offset r-padding/2 away from the center
centerX := s.Box.TopLeft.X + paddingX
centerY := s.Box.TopLeft.Y + paddingY
r := s.Box.Width / 2.
x := centerX - r
y := centerY - r
return geo.Point{
X: s.Box.TopLeft.X + math.Ceil(r-project45*(r-paddingX/2)),
Y: s.Box.TopLeft.Y + math.Ceil(r-project45*(r-paddingY/2)),
X: math.Ceil(x),
Y: math.Ceil(y),
}
}