23 lines
456 B
Go
23 lines
456 B
Go
package chart
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import (
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"testing"
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"github.com/blendlabs/go-assert"
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)
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func TestRangeTranslate(t *testing.T) {
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assert := assert.New(t)
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values := []float64{1.0, 2.0, 2.5, 2.7, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0}
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r := Range{Domain: 1000}
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r.Min, r.Max = MinAndMax(values...)
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// delta = ~7.0
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// value = ~5.0
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// domain = ~1000
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// 5/8 * 1000 ~=
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assert.Equal(0, r.Translate(1.0))
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assert.Equal(1000, r.Translate(8.0))
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assert.Equal(572, r.Translate(5.0))
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}
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