[core] Render fill-extrusion layers (#8431)

1 files changed, 29 insertions, 0 deletions

diff --git a/include/mbgl/style/conversion/position.hpp b/include/mbgl/style/conversion/position.hpp
new file mode 100644
index 0000000000..7036b03822
--- /dev/null
+++ b/include/mbgl/style/conversion/position.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include <mbgl/style/conversion.hpp>
+#include <mbgl/style/position.hpp>
+#include <mbgl/util/optional.hpp>
+
+#include <array>
+
+namespace mbgl {
+namespace style {
+namespace conversion {
+
+template <>
+struct Converter<Position> {
+    template <class V>
+    optional<Position> operator()(const V& value, Error& error) const {
+        optional<std::array<float, 3>> spherical = convert<std::array<float, 3>>(value, error);
+
+        if (!spherical) {
+            return {};
+        }
+
+        return Position(*spherical);
+    }
+};
+
+} // namespace conversion
+} // namespace style
+} // namespace mbgl