Only draw grid if its type was identified

radolan2png/radolan2png.go

@@ -5,11 +5,11 @@ package main
 
 import (
 	"fmt"
+	"gitlab.cs.fau.de/since/radolan"
 	"image/color"
 	"image/png"
 	"log"
 	"os"
-	"gitlab.cs.fau.de/since/radolan"
 )
 
 var (
@@ -51,6 +51,7 @@ func convert(in, out string) {
 	img := comp.Image(heatmap)
 
 	// draw borders
+	if comp.HasProjection {
 		for _, b := range border {
 			// convert border points to data indices
 			x, y := comp.Translate(b[0], b[1])
@@ -68,6 +69,7 @@ func convert(in, out string) {
 				}
 			}
 		}
+	}
 
 	// create output file
 	outfile, err := os.Create(out)