prepare release

CHANGELOG.rst

@@ -2,6 +2,17 @@
 Changelog for package plotjuggler
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+Forthcoming
+-----------
+* embed zstd 1.5.5
+* updated lz4 1.9.4
+* PlotJuggler with Fast-CDR-2.x.x (`#932 <https://github.com/facontidavide/PlotJuggler/issues/932>`_)
+* fix ROS2 parser bug
+* fix `#935 <https://github.com/facontidavide/PlotJuggler/issues/935>`_ and `#934 <https://github.com/facontidavide/PlotJuggler/issues/934>`_
+* Add Sample Count to transforms
+* fix compilation in Windows
+* Contributors: Davide Faconti, Manuel Valch
+
 3.9.0 (2024-02-04)
 ------------------
 * new status bar with messages from the internet

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10.2)
 
-PROJECT(plotjuggler LANGUAGES C CXX VERSION 3.9.0)
+PROJECT(plotjuggler LANGUAGES C CXX VERSION 3.9.1)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

plotjuggler_app/transforms/samples_count.cpp

@@ -51,22 +51,10 @@ std::optional<PJ::PlotData::Point> SamplesCountFilter::calculateNextPoint(size_t
     if(dataSource()->size() == 0) {
         return std::nullopt;
     }
-    const double delta = 0.001 * double(ui->spinBoxMilliseconds->value());
-    const auto& point = dataSource()->at(index);
-    if(index == 0) {
-        interval_end_ = point.x + delta;
-        count_ = 0;
-    }
-    count_++;
 
-    if(point.x > interval_end_ || index == (dataSource()->size() - 1))
-    {
-        auto out = PJ::PlotData::Point{ interval_end_, double(count_) };
-        while(point.x > interval_end_) {
-            interval_end_ += delta;
-        }
-        count_ = 0;
-        return out;
-    }
-    return std::nullopt;
+    const auto& point = dataSource()->at(index);
+    const double delta = 0.001 * double(ui->spinBoxMilliseconds->value());
+    const double min_time = point.x - delta;
+    auto min_index = dataSource()->getIndexFromX(min_time);
+    return PJ::PlotData::Point{ point.x, double(index - min_index) };
 }