feature: allow for multi-line attribution strings. Closes #73

examples/multiline-attribution/multiline-attribution.go

@@ -0,0 +1,26 @@
+// This is an example on how to use a multiline attribution string.
+
+package main
+
+import (
+	sm "github.com/flopp/go-staticmaps"
+	"github.com/fogleman/gg"
+	"github.com/golang/geo/s2"
+)
+
+func main() {
+	ctx := sm.NewContext()
+	ctx.SetSize(400, 300)
+	ctx.OverrideAttribution("This is a\nmulti-line\nattribution string.")
+	ctx.SetCenter(s2.LatLngFromDegrees(48, 7.9))
+	ctx.SetZoom(13)
+
+	img, err := ctx.Render()
+	if err != nil {
+		panic(err)
+	}
+
+	if err := gg.SavePNG("multiline-attribution.png", img); err != nil {
+		panic(err)
+	}
+}