42 lines
854 B
Go
42 lines
854 B
Go
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package chart
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// Points are an array of points.
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import (
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"fmt"
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"strings"
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)
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// Point represents a x,y coordinate.
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type Point struct {
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X float64
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Y float64
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}
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// Points represents a group of points.
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type Points []Point
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// String returns a string representation of the points.
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func (p Points) String() string {
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var values []string
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for _, v := range p {
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values = append(values, fmt.Sprintf("%d,%d", int(v.X), int(v.Y)))
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}
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return strings.Join(values, "\n")
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}
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// Len returns the length of the points set.
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func (p Points) Len() int {
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return len(p)
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}
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// Swap swaps two elments.
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func (p Points) Swap(i, j int) {
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p[i], p[j] = p[j], p[i]
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}
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// Less returns if the X value of one element is less than another.
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// This is the default sort for charts where you plot by x values in order.
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func (p Points) Less(i, j int) bool {
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return p[i].X < p[j].X
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}
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