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Diffstat (limited to 'rtc_tools/rtc_event_log_visualizer/plot_base.cc')
-rw-r--r--rtc_tools/rtc_event_log_visualizer/plot_base.cc229
1 files changed, 229 insertions, 0 deletions
diff --git a/rtc_tools/rtc_event_log_visualizer/plot_base.cc b/rtc_tools/rtc_event_log_visualizer/plot_base.cc
index dfcd26fed5..dce601a832 100644
--- a/rtc_tools/rtc_event_log_visualizer/plot_base.cc
+++ b/rtc_tools/rtc_event_log_visualizer/plot_base.cc
@@ -11,6 +11,7 @@
#include "rtc_tools/rtc_event_log_visualizer/plot_base.h"
#include <algorithm>
+#include <memory>
#include "rtc_base/checks.h"
@@ -93,4 +94,232 @@ void Plot::AppendTimeSeriesIfNotEmpty(TimeSeries&& time_series) {
}
}
+void Plot::PrintPythonCode() const {
+ // Write python commands to stdout. Intended program usage is
+ // ./event_log_visualizer event_log160330.dump | python
+
+ if (!series_list_.empty()) {
+ printf("color_count = %zu\n", series_list_.size());
+ printf(
+ "hls_colors = [(i*1.0/color_count, 0.25+i*0.5/color_count, 0.8) for i "
+ "in range(color_count)]\n");
+ printf("colors = [colorsys.hls_to_rgb(*hls) for hls in hls_colors]\n");
+
+ for (size_t i = 0; i < series_list_.size(); i++) {
+ printf("\n# === Series: %s ===\n", series_list_[i].label.c_str());
+ // List x coordinates
+ printf("x%zu = [", i);
+ if (!series_list_[i].points.empty())
+ printf("%.3f", series_list_[i].points[0].x);
+ for (size_t j = 1; j < series_list_[i].points.size(); j++)
+ printf(", %.3f", series_list_[i].points[j].x);
+ printf("]\n");
+
+ // List y coordinates
+ printf("y%zu = [", i);
+ if (!series_list_[i].points.empty())
+ printf("%G", series_list_[i].points[0].y);
+ for (size_t j = 1; j < series_list_[i].points.size(); j++)
+ printf(", %G", series_list_[i].points[j].y);
+ printf("]\n");
+
+ if (series_list_[i].line_style == LineStyle::kBar) {
+ // There is a plt.bar function that draws bar plots,
+ // but it is *way* too slow to be useful.
+ printf(
+ "plt.vlines(x%zu, map(lambda t: min(t,0), y%zu), map(lambda t: "
+ "max(t,0), y%zu), color=colors[%zu], "
+ "label=\'%s\')\n",
+ i, i, i, i, series_list_[i].label.c_str());
+ if (series_list_[i].point_style == PointStyle::kHighlight) {
+ printf(
+ "plt.plot(x%zu, y%zu, color=colors[%zu], "
+ "marker='.', ls=' ')\n",
+ i, i, i);
+ }
+ } else if (series_list_[i].line_style == LineStyle::kLine) {
+ if (series_list_[i].point_style == PointStyle::kHighlight) {
+ printf(
+ "plt.plot(x%zu, y%zu, color=colors[%zu], label=\'%s\', "
+ "marker='.')\n",
+ i, i, i, series_list_[i].label.c_str());
+ } else {
+ printf("plt.plot(x%zu, y%zu, color=colors[%zu], label=\'%s\')\n", i,
+ i, i, series_list_[i].label.c_str());
+ }
+ } else if (series_list_[i].line_style == LineStyle::kStep) {
+ // Draw lines from (x[0],y[0]) to (x[1],y[0]) to (x[1],y[1]) and so on
+ // to illustrate the "steps". This can be expressed by duplicating all
+ // elements except the first in x and the last in y.
+ printf("xd%zu = [dup for v in x%zu for dup in [v, v]]\n", i, i);
+ printf("yd%zu = [dup for v in y%zu for dup in [v, v]]\n", i, i);
+ printf(
+ "plt.plot(xd%zu[1:], yd%zu[:-1], color=colors[%zu], "
+ "label=\'%s\')\n",
+ i, i, i, series_list_[i].label.c_str());
+ if (series_list_[i].point_style == PointStyle::kHighlight) {
+ printf(
+ "plt.plot(x%zu, y%zu, color=colors[%zu], "
+ "marker='.', ls=' ')\n",
+ i, i, i);
+ }
+ } else if (series_list_[i].line_style == LineStyle::kNone) {
+ printf(
+ "plt.plot(x%zu, y%zu, color=colors[%zu], label=\'%s\', "
+ "marker='o', ls=' ')\n",
+ i, i, i, series_list_[i].label.c_str());
+ } else {
+ printf("raise Exception(\"Unknown graph type\")\n");
+ }
+ }
+
+ // IntervalSeries
+ printf("interval_colors = ['#ff8e82','#5092fc','#c4ffc4','#aaaaaa']\n");
+ RTC_CHECK_LE(interval_list_.size(), 4);
+ // To get the intervals to show up in the legend we have to create patches
+ // for them.
+ printf("legend_patches = []\n");
+ for (size_t i = 0; i < interval_list_.size(); i++) {
+ // List intervals
+ printf("\n# === IntervalSeries: %s ===\n",
+ interval_list_[i].label.c_str());
+ printf("ival%zu = [", i);
+ if (!interval_list_[i].intervals.empty()) {
+ printf("(%G, %G)", interval_list_[i].intervals[0].begin,
+ interval_list_[i].intervals[0].end);
+ }
+ for (size_t j = 1; j < interval_list_[i].intervals.size(); j++) {
+ printf(", (%G, %G)", interval_list_[i].intervals[j].begin,
+ interval_list_[i].intervals[j].end);
+ }
+ printf("]\n");
+
+ printf("for i in range(0, %zu):\n", interval_list_[i].intervals.size());
+ if (interval_list_[i].orientation == IntervalSeries::kVertical) {
+ printf(
+ " plt.axhspan(ival%zu[i][0], ival%zu[i][1], "
+ "facecolor=interval_colors[%zu], "
+ "alpha=0.3)\n",
+ i, i, i);
+ } else {
+ printf(
+ " plt.axvspan(ival%zu[i][0], ival%zu[i][1], "
+ "facecolor=interval_colors[%zu], "
+ "alpha=0.3)\n",
+ i, i, i);
+ }
+ printf(
+ "legend_patches.append(mpatches.Patch(ec=\'black\', "
+ "fc=interval_colors[%zu], label='%s'))\n",
+ i, interval_list_[i].label.c_str());
+ }
+ }
+
+ printf("plt.xlim(%f, %f)\n", xaxis_min_, xaxis_max_);
+ printf("plt.ylim(%f, %f)\n", yaxis_min_, yaxis_max_);
+ printf("plt.xlabel(\'%s\')\n", xaxis_label_.c_str());
+ printf("plt.ylabel(\'%s\')\n", yaxis_label_.c_str());
+ printf("plt.title(\'%s\')\n", title_.c_str());
+ printf("fig = plt.gcf()\n");
+ printf("fig.canvas.set_window_title(\'%s\')\n", id_.c_str());
+ if (!yaxis_tick_labels_.empty()) {
+ printf("yaxis_tick_labels = [");
+ for (const auto& kv : yaxis_tick_labels_) {
+ printf("(%f,\"%s\"),", kv.first, kv.second.c_str());
+ }
+ printf("]\n");
+ printf("yaxis_tick_labels = list(zip(*yaxis_tick_labels))\n");
+ printf("plt.yticks(*yaxis_tick_labels)\n");
+ }
+ if (!series_list_.empty() || !interval_list_.empty()) {
+ printf("handles, labels = plt.gca().get_legend_handles_labels()\n");
+ printf("for lp in legend_patches:\n");
+ printf(" handles.append(lp)\n");
+ printf(" labels.append(lp.get_label())\n");
+ printf("plt.legend(handles, labels, loc=\'best\', fontsize=\'small\')\n");
+ }
+}
+
+void Plot::ExportProtobuf(webrtc::analytics::Chart* chart) const {
+ for (size_t i = 0; i < series_list_.size(); i++) {
+ webrtc::analytics::DataSet* data_set = chart->add_data_sets();
+ for (const auto& point : series_list_[i].points) {
+ data_set->add_x_values(point.x);
+ }
+ for (const auto& point : series_list_[i].points) {
+ data_set->add_y_values(point.y);
+ }
+
+ if (series_list_[i].line_style == LineStyle::kBar) {
+ data_set->set_style(webrtc::analytics::ChartStyle::BAR_CHART);
+ } else if (series_list_[i].line_style == LineStyle::kLine) {
+ data_set->set_style(webrtc::analytics::ChartStyle::LINE_CHART);
+ } else if (series_list_[i].line_style == LineStyle::kStep) {
+ data_set->set_style(webrtc::analytics::ChartStyle::LINE_STEP_CHART);
+ } else if (series_list_[i].line_style == LineStyle::kNone) {
+ data_set->set_style(webrtc::analytics::ChartStyle::SCATTER_CHART);
+ } else {
+ data_set->set_style(webrtc::analytics::ChartStyle::UNDEFINED);
+ }
+
+ if (series_list_[i].point_style == PointStyle::kHighlight)
+ data_set->set_highlight_points(true);
+
+ data_set->set_label(series_list_[i].label);
+ }
+
+ chart->set_xaxis_min(xaxis_min_);
+ chart->set_xaxis_max(xaxis_max_);
+ chart->set_yaxis_min(yaxis_min_);
+ chart->set_yaxis_max(yaxis_max_);
+ chart->set_xaxis_label(xaxis_label_);
+ chart->set_yaxis_label(yaxis_label_);
+ chart->set_title(title_);
+ chart->set_id(id_);
+
+ for (const auto& kv : yaxis_tick_labels_) {
+ webrtc::analytics::TickLabel* tick = chart->add_yaxis_tick_labels();
+ tick->set_value(kv.first);
+ tick->set_label(kv.second);
+ }
+}
+
+void PlotCollection::PrintPythonCode(bool shared_xaxis) const {
+ printf("import matplotlib.pyplot as plt\n");
+ printf("plt.rcParams.update({'figure.max_open_warning': 0})\n");
+ printf("import matplotlib.patches as mpatches\n");
+ printf("import matplotlib.patheffects as pe\n");
+ printf("import colorsys\n");
+ for (size_t i = 0; i < plots_.size(); i++) {
+ printf("plt.figure(%zu)\n", i);
+ if (shared_xaxis) {
+ // Link x-axes across all figures for synchronized zooming.
+ if (i == 0) {
+ printf("axis0 = plt.subplot(111)\n");
+ } else {
+ printf("plt.subplot(111, sharex=axis0)\n");
+ }
+ }
+ plots_[i]->PrintPythonCode();
+ }
+ printf("plt.show()\n");
+}
+
+void PlotCollection::ExportProtobuf(
+ webrtc::analytics::ChartCollection* collection) const {
+ for (const auto& plot : plots_) {
+ // TODO(terelius): Ensure that there is no way to insert plots other than
+ // ProtobufPlots in a ProtobufPlotCollection. Needed to safely static_cast
+ // here.
+ webrtc::analytics::Chart* protobuf_representation =
+ collection->add_charts();
+ plot->ExportProtobuf(protobuf_representation);
+ }
+}
+
+Plot* PlotCollection::AppendNewPlot() {
+ plots_.push_back(std::make_unique<Plot>());
+ return plots_.back().get();
+}
+
} // namespace webrtc
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