Linspace helper function

Brendan Klare
1 parent 7056f9dd
Showing 2 changed files with 17 additions and 0 deletions
openbr/core/common.cpp
openbr/core/common.h
@@ -63,3 +63,15 @@ QList&lt;int&gt; Common::RandSample(int n, const QSet&lt;int&gt; &amp;values, bool unique)
     }
     return samples;
 }
+
+QList<float> linspace(float start, float stop, int n) {
+    float delta = (stop - start) / (n - 1);
+    float curValue = start;
+    QList<float> spaced;
+    spaced.reserve(n);
+    spaced.append(start);
+    for (int i = 1; i < (n - 1); i++) {
+        spaced.append(curValue += delta);
+    }
+    spaced.append(stop);
+}
@@ -253,6 +253,11 @@ QList&lt;int&gt; RandSample(int n, const QList&lt;T&gt; &amp;weights, bool unique = false)
 }
 /*!
+ * \brief See Matlab function linspace() for documentation.
+ */
+QList<float> linspace(float start, float stop, int n);
+
+/*!
  * \brief See Matlab function unique() for documentation.
  */
 template <typename T>