Add explicit 'clear' method to TGMapData

tangrams · Jan 2, 2020 · 895e9e1 · 895e9e1
1 parent 4c5136a
commit 895e9e1
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diff --git a/platforms/ios/framework/src/TGMapData.h b/platforms/ios/framework/src/TGMapData.h
@@ -80,6 +80,11 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (void)setGeoJson:(NSString *)data;
 
+/**
+ Clears the contents of this map data.
+ */
+- (void)clear;
+
 /**
  Permanently removes this map data from the map view.
 

diff --git a/platforms/ios/framework/src/TGMapData.mm b/platforms/ios/framework/src/TGMapData.mm
@@ -105,6 +105,16 @@ - (void)setGeoJson:(NSString *)data
     dataSource->generateTiles();
 }
 
+- (void)clear
+{
+    if (!self.map) {
+        return;
+    }
+
+    dataSource->clearFeatures();
+    dataSource->generateTiles();
+}
+
 - (BOOL)remove
 {
     if (!self.map) {