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-rw-r--r--bookpipeline/graph.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/bookpipeline/graph.go b/bookpipeline/graph.go
index acd015e..955abbd 100644
--- a/bookpipeline/graph.go
+++ b/bookpipeline/graph.go
@@ -66,6 +66,9 @@ func Graph(confs map[string]*Conf, bookname string, w io.Writer) error {
var annotations []chart.Value2
var ticks []chart.Tick
tickevery := len(graphconf) / maxticks
+ if tickevery < 1 {
+ tickevery = 1
+ }
for i, c := range graphconf {
xvalues = append(xvalues, c.Pgnum)
yvalues = append(yvalues, c.Conf)