fix: fix slice init length

cuishuang · web-flow · commit 00f2eef56206 · 2024-10-04T19:11:19.000+08:00
diff --git a/renderers/gonumplot.go b/renderers/gonumplot.go
@@ -51,7 +51,7 @@ func (r *GonumPlot) SetLineWidth(length vg.Length) {
 //
 // The initial dash pattern is a solid line.
 func (r *GonumPlot) SetLineDash(pattern []vg.Length, offset vg.Length) {
-	array := make([]float64, len(pattern))
+	array := make([]float64, 0, len(pattern))
 	for _, dash := range pattern {
 		array = append(array, float64(dash*mmPerPt))
 	}

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ func (r *GonumPlot) SetLineWidth(length vg.Length) {`
`51`	`51`	`//`
`52`	`52`	`// The initial dash pattern is a solid line.`
`53`	`53`	`func (r *GonumPlot) SetLineDash(pattern []vg.Length, offset vg.Length) {`
`54`		`- array := make([]float64, len(pattern))`
	`54`	`+ array := make([]float64, 0, len(pattern))`
`55`	`55`	`for _, dash := range pattern {`
`56`	`56`	`array = append(array, float64(dash*mmPerPt))`
`57`	`57`	`}`