--- a/pkg/mesh/triangulation.go	Sat Aug 21 15:01:52 2021 +0200
+++ b/pkg/mesh/triangulation.go	Mon Sep 20 17:45:39 2021 +0200
@@ -20,9 +20,9 @@
 package mesh
 
 import (
-	"log"
 	"math"
 
+	"gemma.intevation.de/gemma/pkg/log"
 	"gonum.org/v1/gonum/stat"
 )
 
@@ -115,7 +115,7 @@
 
 	var newCandidates []int32
 
-	log.Printf("info: candidates: %d\n", len(candidates))
+	log.Infof("candidates: %d\n", len(candidates))
 	for len(candidates) > 0 {
 
 		oldRemoved := len(removed)
@@ -137,9 +137,9 @@
 		newCandidates = newCandidates[:0]
 	}
 
-	log.Printf("info: candidates left: %d\n", len(candidates))
-	log.Printf("info: triangles: %d\n", len(t.Triangles)/3)
-	log.Printf("info: triangles to remove: %d\n", len(removed))
+	log.Infof("candidates left: %d\n", len(candidates))
+	log.Infof("triangles: %d\n", len(t.Triangles)/3)
+	log.Infof("info: triangles to remove: %d\n", len(removed))
 
 	type edge struct {
 		a, b       int32
@@ -213,11 +213,11 @@
 	}
 
 	if len(open) > 0 {
-		log.Printf("warn: open vertices left: %d\n", len(open))
+		log.Warnf("open vertices left: %d\n", len(open))
 	}
 
 	if len(rings) == 0 {
-		log.Println("warn: no ring found")
+		log.Warnln("no ring found")
 		return nil, removed
 	}
 
@@ -234,7 +234,7 @@
 
 	polygon = append(polygon, t.Points[rings[0].a])
 
-	log.Printf("length of boundary: %d\n", len(polygon))
+	log.Infof("length of boundary: %d\n", len(polygon))
 
 	return polygon, removed
 }