From cbdeb427712297470b6159d8f142719057f6f75c 2017-09-06 21:37:08
From: Alexis Jeandet <alexis.jeandet@member.fsf.org>
Date: 2017-09-06 21:37:08
Subject: [PATCH] Perf improvement on vector points interleaving.

Signed-off-by: Alexis Jeandet <alexis.jeandet@member.fsf.org>

---

diff --git a/core/src/Data/VectorSeries.cpp b/core/src/Data/VectorSeries.cpp
index 879d689..a51b0cc 100644
--- a/core/src/Data/VectorSeries.cpp
+++ b/core/src/Data/VectorSeries.cpp
@@ -29,13 +29,11 @@ std::vector<double> flatten(std::vector<double> xValues, std::vector<double> yVa
 
     auto result = std::vector<double>();
     result.reserve(xValues.size() * 3);
-
-    while (!xValues.empty()) {
-        result.insert(result.cend(), {xValues.front(), yValues.front(), zValues.front()});
-        xValues.erase(xValues.begin());
-        yValues.erase(yValues.begin());
-        zValues.erase(zValues.begin());
-    }
+    for (int i = 0; i < xValues.size(); i++) {
+        result.push_back(xValues[i]);
+        result.push_back(yValues[i]);
+        result.push_back(zValues[i]);
+     }
 
     return result;
 }