From cf913574bcad025cd2b83243d541af36b81605d3 Mon Sep 17 00:00:00 2001
From: Summer G Stapleton <sgstapleton@usgs.gov>
Date: Thu, 29 Nov 2018 16:40:33 -0700
Subject: [PATCH] Very simple implementation (with example code) of a
 state-from-isd method.

---
 src/eal.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/eal.cpp

diff --git a/src/eal.cpp b/src/eal.cpp
new file mode 100644
index 0000000..a8b101a
--- /dev/null
+++ b/src/eal.cpp
@@ -0,0 +1,19 @@
+
+#include <json.hpp>
+
+using json = nlohmann::json;
+
+
+std::string eal::constructStateFromIsd(const std::string positionRotationData) const
+{
+   // Parse the position and rotation data from isd
+   json isd = json::parse(positionRotationData);
+   json state;
+
+   state["m_w"] = isd.at("w");
+   state["m_x"] = isd.at("x");
+   state["m_y"] = isd.at("y");
+   state["m_z"] = isd.at("z");
+
+   return state.dump();
+}
-- 
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