wip

airbusgeo · May 28, 2021 · a0f4ab0 · a0f4ab0
1 parent 4a5f1eb
commit a0f4ab0
Show file tree

Hide file tree

Showing 2 changed files with 27 additions and 1,274 deletions.
diff --git a/doc_test.go b/doc_test.go
@@ -517,22 +517,38 @@ func Example_vectorTutorial() {
 	// created geometry { "type": "Point", "coordinates": [ 1.0, 1.0 ] }
 }
 
+//ExampleErrorHandler_sentinel is an example to make godal.Open return a specific golang
+//error when the gdal emitted error/log matches certain criteria
 func ExampleErrorHandler_sentinel() {
 	sentinel := errors.New("noent")
 	eh := func(ec godal.ErrorCategory, code int, msg string) error {
 		/* do some advanced checking of ec, code and msg to determine if this is an actual error */
-		not_an_error := false
-		if not_an_error {
+		haveError := true
+		if !haveError {
 			log.Println(msg)
 			return nil
 		}
 		return sentinel
-
 	}
 	_, err := godal.Open("nonexistent.tif", godal.ErrLogger(eh))
 	if err == sentinel {
 		fmt.Println(err.Error())
 	}
+
 	// Output:
 	// noent
 }
+
+//ExampleErrorHandler_warnings is an example to set up an error handler that ignores gdal warnings
+func ExampleErrorHandler_warnings() {
+	eh := func(ec godal.ErrorCategory, code int, msg string) error {
+		if ec <= godal.CE_Warning {
+			log.Println(msg)
+			return nil
+		}
+		return fmt.Errorf("GDAL %d: %s", code, msg)
+	}
+	_, err := godal.Open("nonexistent.tif", godal.ErrLogger(eh))
+	// err if returned will not arise from a gdal warning
+	_ = err
+}