1 files changed, 46 insertions, 0 deletions
diff --git a/deps/geojsonvt/6.3.0/include/mapbox/geojsonvt/wrap.hpp b/deps/geojsonvt/6.3.0/include/mapbox/geojsonvt/wrap.hpp
new file mode 100644
index 0000000000..495ccc5800
--- /dev/null
+++ b/deps/geojsonvt/6.3.0/include/mapbox/geojsonvt/wrap.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+#include <mapbox/geojsonvt/clip.hpp>
+#include <mapbox/geojsonvt/types.hpp>
+
+namespace mapbox {
+namespace geojsonvt {
+namespace detail {
+
+inline void shiftCoords(vt_features& features, double offset) {
+    for (auto& feature : features) {
+        mapbox::geometry::for_each_point(feature.geometry,
+                                         [offset](vt_point& point) { point.x += offset; });
+        feature.bbox.min.x += offset;
+        feature.bbox.max.x += offset;
+    }
+}
+
+inline vt_features wrap(const vt_features& features, double buffer) {
+    // left world copy
+    auto left = clip<0>(features, -1 - buffer, buffer, -1, 2);
+    // right world copy
+    auto right = clip<0>(features, 1 - buffer, 2 + buffer, -1, 2);
+
+    if (left.empty() && right.empty())
+        return features;
+
+    // center world copy
+    auto merged = clip<0>(features, -buffer, 1 + buffer, -1, 2);
+
+    if (!left.empty()) {
+        // merge left into center
+        shiftCoords(left, 1.0);
+        merged.insert(merged.begin(), left.begin(), left.end());
+    }
+    if (!right.empty()) {
+        // merge right into center
+        shiftCoords(right, -1.0);
+        merged.insert(merged.end(), right.begin(), right.end());
+    }
+    return merged;
+}
+
+} // namespace detail
+} // namespace geojsonvt
+} // namespace mapbox