fixed tile url

README.md

@@ -22,6 +22,13 @@ Installing go-staticmaps is as easy as
 go get -u github.com/flopp/go-staticmaps
 ```
 
+For the command line tool, use
+```bash
+go get -u github.com/flopp/go-staticmaps/create-static-map
+```
+
+Of course, your local Go installation must be setup up properly.
+
 ### Library Usage
 
 Create a 400x300 pixel map with a red marker:

context.go

@@ -10,6 +10,7 @@ import (
 	"errors"
 	"image"
 	"image/draw"
+	"log"
 	"math"
 
 	"github.com/fogleman/gg"
@@ -242,6 +243,8 @@ func (m *Context) Render() (image.Image, error) {
 			y := trans.tOriginY + yy
 			if tileImg, err := t.Fetch(zoom, x, y); err == nil {
 				gc.DrawImage(tileImg, xx*tileSize, yy*tileSize)
+			} else {
+				log.Printf("Error downloading tile file: %s", err)
 			}
 		}
 	}

tile_fetcher.go

@@ -89,12 +89,12 @@ func (t *TileFetcher) Fetch(zoom, x, y int) (image.Image, error) {
 
 func (t *TileFetcher) download(url string) ([]byte, error) {
 	resp, err := http.Get(url)
-	defer resp.Body.Close()
-
 	if err != nil {
 		return nil, err
 	}
 
+	defer resp.Body.Close()
+
 	contents, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err

tile_provider.go

@@ -24,9 +24,9 @@ func (t *TileProvider) getURL(shard string, zoom, x, y int) string {
 func NewTileProviderOpenStreetMaps() *TileProvider {
 	t := new(TileProvider)
 	t.Name = "osm"
-	t.Attribution = "Maps and Data (c) openstreetmaps.org and contributors, ODbL"
+	t.Attribution = "Maps and Data (c) openstreetmap.org and contributors, ODbL"
 	t.TileSize = 256
-	t.URLPattern = "http://%[1]s.tile.openstreemaps.org/%[2]d/%[3]d/%[4]d.png"
+	t.URLPattern = "http://%[1]s.tile.openstreetmap.org/%[2]d/%[3]d/%[4]d.png"
 	t.Shards = []string{"a", "b", "c"}
 	return t
 }