Added cadence and power graphs

2024-10-06 06:43:22 +02:00 · 2016-11-06 03:28:08 +01:00 · 2016-11-06 03:28:08 +01:00 · 8a90a736d2
commit 8a90a736d2
parent aac9bf024b
15 changed files with 469 additions and 184 deletions
--- a/gpxsee.pro
+++ b/gpxsee.pro
@ -66,7 +66,9 @@ HEADERS += src/config.h \
    src/fitparser.h \
    src/format.h \
    src/path.h \
-    src/assert.h
+    src/assert.h \
+    src/cadencegraph.h \
+    src/powergraph.h
 SOURCES += src/main.cpp \
    src/gui.cpp \
    src/poi.cpp \
@ -112,7 +114,9 @@ SOURCES += src/main.cpp \
    src/kmlparser.cpp \
    src/fitparser.cpp \
    src/format.cpp \
-    src/graph.cpp
+    src/graph.cpp \
+    src/cadencegraph.cpp \
+    src/powergraph.cpp
 RESOURCES += gpxsee.qrc
 TRANSLATIONS = lang/gpxsee_cs.ts
 macx {
--- a/lang/gpxsee_cs.ts
+++ b/lang/gpxsee_cs.ts
@ -1,6 +1,30 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
 <TS version="2.1" language="cs_CZ">
+<context>
+    <name>CadenceGraph</name>
+    <message>
+        <location filename="../src/cadencegraph.cpp" line="10"/>
+        <source>1/min</source>
+        <translation>1/min</translation>
+    </message>
+    <message>
+        <location filename="../src/cadencegraph.cpp" line="11"/>
+        <location filename="../src/cadencegraph.h" line="13"/>
+        <source>Cadence</source>
+        <translation>Kadence</translation>
+    </message>
+    <message>
+        <location filename="../src/cadencegraph.cpp" line="19"/>
+        <source>Average</source>
+        <translation>Průměr</translation>
+    </message>
+    <message>
+        <location filename="../src/cadencegraph.cpp" line="21"/>
+        <source>Maximum</source>
+        <translation>Maximum</translation>
+    </message>
+</context>
 <context>
    <name>ElevationGraph</name>
    <message>
@ -166,280 +190,280 @@
 <context>
    <name>GUI</name>
    <message>
-        <location filename="../src/gui.cpp" line="546"/>
+        <location filename="../src/gui.cpp" line="550"/>
        <source>GPXSee is distributed under the terms of the GNU General Public License version 3. For more info about GPXSee visit the project homepage at </source>
        <translation>Program GPXSee je distribuován pod podmínkami licence GNU General Public License verze 3. Pro více informací navštivte stránky programu na adrese </translation>
    </message>
    <message>
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+        <location filename="../src/gui.cpp" line="614"/>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="691"/>
+        <location filename="../src/gui.cpp" line="695"/>
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        <translation>Otevřít POI soubor</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="223"/>
+        <location filename="../src/gui.cpp" line="225"/>
        <source>Open</source>
        <translation>Otevřít</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="207"/>
+        <location filename="../src/gui.cpp" line="209"/>
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-        <location filename="../src/gui.cpp" line="562"/>
-        <location filename="../src/gui.cpp" line="563"/>
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+        <location filename="../src/gui.cpp" line="566"/>
+        <location filename="../src/gui.cpp" line="567"/>
        <source>Keyboard controls</source>
        <translation>Ovládací klávesy</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="239"/>
+        <location filename="../src/gui.cpp" line="241"/>
        <source>Close</source>
        <translation>Zavřít</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="245"/>
+        <location filename="../src/gui.cpp" line="247"/>
        <source>Reload</source>
        <translation>Znovu načíst</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="474"/>
+        <location filename="../src/gui.cpp" line="476"/>
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        <translation>Zobrazit</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="396"/>
-        <location filename="../src/gui.cpp" line="468"/>
+        <location filename="../src/gui.cpp" line="398"/>
+        <location filename="../src/gui.cpp" line="470"/>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="109"/>
+        <location filename="../src/gui.cpp" line="111"/>
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        <translation>Podporované soubory (*.csv *.fit *.gpx *.kml *.tcx)</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="110"/>
+        <location filename="../src/gui.cpp" line="112"/>
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    </message>
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-        <location filename="../src/gui.cpp" line="585"/>
-        <location filename="../src/gui.cpp" line="586"/>
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+        <location filename="../src/gui.cpp" line="590"/>
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        <translation>Zdroje dat</translation>
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+        <location filename="../src/gui.cpp" line="255"/>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="256"/>
+        <location filename="../src/gui.cpp" line="258"/>
        <source>Close POI files</source>
        <translation>Zavřit POI soubory</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="258"/>
+        <location filename="../src/gui.cpp" line="260"/>
        <source>Overlap POIs</source>
        <translation>Překrývat POI</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="262"/>
+        <location filename="../src/gui.cpp" line="264"/>
        <source>Show POI labels</source>
        <translation>Zobrazovat názvy POI</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="267"/>
+        <location filename="../src/gui.cpp" line="269"/>
        <source>Show POIs</source>
        <translation>Zobrazit POI</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="276"/>
+        <location filename="../src/gui.cpp" line="278"/>
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        <translation>Zobrazit mapu</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="282"/>
+        <location filename="../src/gui.cpp" line="284"/>
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-        <location filename="../src/gui.cpp" line="295"/>
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+        <location filename="../src/gui.cpp" line="297"/>
+        <location filename="../src/gui.cpp" line="576"/>
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        <translation>Následující mapa</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="302"/>
+        <location filename="../src/gui.cpp" line="304"/>
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        <translation>Zobrazit cesty</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="306"/>
+        <location filename="../src/gui.cpp" line="308"/>
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        <translation>Zobrazit trasy</translation>
    </message>
    <message>
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+        <location filename="../src/gui.cpp" line="312"/>
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        <translation>Zobrazit navigační body</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="314"/>
+        <location filename="../src/gui.cpp" line="316"/>
        <source>Waypoint labels</source>
        <translation>Názvy navigačních bodů</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="325"/>
+        <location filename="../src/gui.cpp" line="327"/>
        <source>Show graphs</source>
        <translation>Zobrazovat grafy</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="347"/>
+        <location filename="../src/gui.cpp" line="349"/>
        <source>Show grid</source>
        <translation>Zobrazit mřížku</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="353"/>
+        <location filename="../src/gui.cpp" line="355"/>
        <source>Show toolbars</source>
        <translation>Zobrazovat nástrojové lišty</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="359"/>
+        <location filename="../src/gui.cpp" line="361"/>
        <source>Metric</source>
        <translation>Metrické</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="364"/>
+        <location filename="../src/gui.cpp" line="366"/>
        <source>Imperial</source>
        <translation>Imperiální</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="370"/>
+        <location filename="../src/gui.cpp" line="372"/>
        <source>Fullscreen mode</source>
        <translation>Celoobrazovkový režim</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="378"/>
+        <location filename="../src/gui.cpp" line="380"/>
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    </message>
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-        <location filename="../src/gui.cpp" line="381"/>
+        <location filename="../src/gui.cpp" line="383"/>
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    <message>
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+        <location filename="../src/gui.cpp" line="412"/>
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        <translation>Mapa</translation>
    </message>
    <message>
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+        <location filename="../src/gui.cpp" line="419"/>
        <source>Graph</source>
        <translation>Graf</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="425"/>
+        <location filename="../src/gui.cpp" line="427"/>
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        <translation>POI</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="426"/>
+        <location filename="../src/gui.cpp" line="428"/>
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        <translation>POI soubory</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="437"/>
+        <location filename="../src/gui.cpp" line="439"/>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="438"/>
+        <location filename="../src/gui.cpp" line="440"/>
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        <translation>Zobrazit</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="446"/>
+        <location filename="../src/gui.cpp" line="448"/>
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        <translation>Nastavení</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="447"/>
+        <location filename="../src/gui.cpp" line="449"/>
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        <translation>Jednotky</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="455"/>
+        <location filename="../src/gui.cpp" line="457"/>
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    </message>
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+        <location filename="../src/gui.cpp" line="578"/>
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    <message>
-        <location filename="../src/gui.cpp" line="111"/>
+        <location filename="../src/gui.cpp" line="113"/>
        <source>GPX files (*.gpx)</source>
        <translation>Soubory GPX (*.gpx)</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="112"/>
+        <location filename="../src/gui.cpp" line="114"/>
        <source>TCX files (*.tcx)</source>
        <translation>Soubory TCX (*.tcx)</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="111"/>
+        <location filename="../src/gui.cpp" line="113"/>
        <source>KML files (*.kml)</source>
        <translation>Soubory KML (*.kml)</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="110"/>
+        <location filename="../src/gui.cpp" line="112"/>
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        <translation>Soubory CSV (*.csv)</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="112"/>
+        <location filename="../src/gui.cpp" line="114"/>
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-        <location filename="../src/gui.cpp" line="777"/>
-        <location filename="../src/gui.cpp" line="780"/>
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        <translation>Datum</translation>
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+        <location filename="../src/gui.cpp" line="793"/>
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    <message>
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+        <location filename="../src/gui.cpp" line="981"/>
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    <message numerus="yes">
-        <location filename="../src/gui.cpp" line="981"/>
+        <location filename="../src/gui.cpp" line="985"/>
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            <numerusform>%n soubor</numerusform>
@ -448,121 +472,121 @@
        </translation>
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-        <location filename="../src/gui.cpp" line="565"/>
+        <location filename="../src/gui.cpp" line="569"/>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="542"/>
+        <location filename="../src/gui.cpp" line="546"/>
        <source>Version </source>
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    </message>
    <message>
-        <location filename="../src/gui.cpp" line="228"/>
+        <location filename="../src/gui.cpp" line="230"/>
        <source>Print...</source>
        <translation>Tisknout...</translation>
    </message>
    <message>
-        <location filename="../src/gui.cpp" line="233"/>
+        <location filename="../src/gui.cpp" line="235"/>
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        <translation>Exportovat do PDF...</translation>
    </message>
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+        <location filename="../src/gui.cpp" line="795"/>
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+        <location filename="../src/gui.cpp" line="570"/>
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+        <location filename="../src/gui.cpp" line="320"/>
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+        <location filename="../src/gui.cpp" line="573"/>
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    <message>
-        <location filename="../src/gui.cpp" line="589"/>
+        <location filename="../src/gui.cpp" line="593"/>
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        <translation>URL mapových zdrojů (dlaždic) jsou načteny při startu programu z následujícího souboru:</translation>
    </message>
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-        <location filename="../src/gui.cpp" line="592"/>
+        <location filename="../src/gui.cpp" line="596"/>
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        <translation>Formát souboru je jeden mapový záznam na řádku, kde mapový záznam sestává ze jména mapy a URL dlaždic navzájem oddělených tabulátorem. Souřadnice dlaždice jsou v URL nahrazeny řetězci $x a $y, úroven přiblížení (zoom) pak řetězcem $z. Příklad:</translation>
    </message>
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+        <location filename="../src/gui.cpp" line="604"/>
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-        <location filename="../src/gui.cpp" line="683"/>
-        <location filename="../src/gui.cpp" line="708"/>
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-        <location filename="../src/gui.cpp" line="787"/>
+        <location filename="../src/gui.cpp" line="791"/>
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    <message>
-        <location filename="../src/gui.cpp" line="218"/>
-        <location filename="../src/gui.cpp" line="540"/>
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-        <location filename="../src/gui.cpp" line="479"/>
+        <location filename="../src/gui.cpp" line="481"/>
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-        <location filename="../src/gui.cpp" line="588"/>
+        <location filename="../src/gui.cpp" line="592"/>
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-        <location filename="../src/gui.cpp" line="599"/>
+        <location filename="../src/gui.cpp" line="603"/>
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    <message>
-        <location filename="../src/gui.cpp" line="333"/>
-        <location filename="../src/gui.cpp" line="794"/>
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+        <location filename="../src/gui.cpp" line="798"/>
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-        <location filename="../src/gui.cpp" line="796"/>
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        <translation>Čas</translation>
    </message>
@ -640,6 +664,30 @@
        <translation>Maximum</translation>
    </message>
 </context>
+<context>
+    <name>PowerGraph</name>
+    <message>
+        <location filename="../src/powergraph.cpp" line="10"/>
+        <source>W</source>
+        <translation>W</translation>
+    </message>
+    <message>
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+        <location filename="../src/powergraph.h" line="13"/>
+        <source>Power</source>
+        <translation>Výkon</translation>
+    </message>
+    <message>
+        <location filename="../src/powergraph.cpp" line="19"/>
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+        <translation>Průměr</translation>
+    </message>
+    <message>
+        <location filename="../src/powergraph.cpp" line="21"/>
+        <source>Maximum</source>
+        <translation>Maximum</translation>
+    </message>
+</context>
 <context>
    <name>RouteItem</name>
    <message>
--- a/src/cadencegraph.cpp
+++ b/src/cadencegraph.cpp
@ -0,0 +1,84 @@
+#include "data.h"
+#include "cadencegraph.h"
+
+
+CadenceGraph::CadenceGraph(QWidget *parent) : GraphTab(parent)
+{
+	_units = Metric;
+	_showTracks = true;
+
+	GraphView::setYUnits(tr("1/min"));
+	setYLabel(tr("Cadence"));
+
+	setSliderPrecision(1);
+}
+
+void CadenceGraph::setInfo()
+{
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
+}
+
+void CadenceGraph::loadData(const Data &data, const QList<PathItem *> &paths)
+{
+	for (int i = 0; i < data.tracks().count(); i++) {
+		const Graph &graph = data.tracks().at(i)->cadence();
+		qreal sum = 0, w = 0;
+
+		if (graph.size() < 2) {
+			skipColor();
+			continue;
+		}
+
+		for (int j = 1; j < graph.size(); j++) {
+			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+			sum += graph.at(j).y() * ds;
+			w += ds;
+		}
+		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
+
+		GraphView::loadGraph(graph, paths.at(i));
+	}
+
+	for (int i = 0; i < data.routes().count(); i++)
+		skipColor();
+
+	setInfo();
+
+	redraw();
+}
+
+qreal CadenceGraph::avg() const
+{
+	qreal sum = 0, w = 0;
+	QList<QPointF>::const_iterator it;
+
+	for (it = _avg.begin(); it != _avg.end(); it++) {
+		sum += it->y() * it->x();
+		w += it->x();
+	}
+
+	return (sum / w);
+}
+
+void CadenceGraph::clear()
+{
+	_avg.clear();
+
+	GraphView::clear();
+}
+
+void CadenceGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	showGraph(show);
+	setInfo();
+
+	redraw();
+}
--- a/src/cadencegraph.h
+++ b/src/cadencegraph.h
@ -0,0 +1,31 @@
+#ifndef CADENCEGRAPH_H
+#define CADENCEGRAPH_H
+
+#include "graphtab.h"
+
+class CadenceGraph : public GraphTab
+{
+	Q_OBJECT
+
+public:
+	CadenceGraph(QWidget *parent = 0);
+
+	QString label() const {return tr("Cadence");}
+	void loadData(const Data &data, const QList<PathItem *> &paths);
+	void clear();
+	void setUnits(enum Units) {}
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
+
+private:
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setInfo();
+
+	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
+};
+
+#endif // CADENCEGRAPH_H
--- a/src/fitparser.cpp
+++ b/src/fitparser.cpp
@ -230,10 +230,18 @@ bool FITParser::parseData(MessageDefinition *def, quint8 offset)
 					if (val != 0xff)
 						trackpoint.setHeartRate(val);
 					break;
+				case 4:
+					if (val != 0xff)
+						trackpoint.setCadence(val);
+					break;
 				case 6:
 					if (val != 0xffff)
 						trackpoint.setSpeed(val / 1000.0f);
 					break;
+				case 7:
+					if (val != 0xffff)
+						trackpoint.setPower(val);
+					break;
 				case 13:
 					if (val != 0x7f)
 						trackpoint.setTemperature((qint8)val);
--- a/src/gpxparser.cpp
+++ b/src/gpxparser.cpp
@ -51,56 +51,13 @@ Coordinates GPXParser::coordinates()
 	return Coordinates(lon, lat);
 }

-void GPXParser::handleTrackpointData(DataType type, Trackpoint &trackpoint)
-{
-	switch (type) {
-		case Elevation:
-			trackpoint.setElevation(number());
-			break;
-		case Time:
-			trackpoint.setTimestamp(time());
-			break;
-		case Speed:
-			trackpoint.setSpeed(number());
-			break;
-		case HeartRate:
-			trackpoint.setHeartRate(number());
-			break;
-		case Temperature:
-			trackpoint.setTemperature(number());
-			break;
-		default:
-			break;
-	}
-}
-
-void GPXParser::handleWaypointData(DataType type, Waypoint &waypoint)
-{
-	switch (type) {
-		case Name:
-			waypoint.setName(_reader.readElementText());
-			break;
-		case Description:
-			waypoint.setDescription(_reader.readElementText());
-			break;
-		case Time:
-			waypoint.setTimestamp(time());
-			break;
-		case Elevation:
-			waypoint.setElevation(number());
-			break;
-		default:
-			break;
-	}
-}
-
 void GPXParser::tpExtension(Trackpoint &trackpoint)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "hr")
-			handleTrackpointData(HeartRate, trackpoint);
+			trackpoint.setHeartRate(number());
 		else if (_reader.name() == "atemp")
-			handleTrackpointData(Temperature, trackpoint);
+			trackpoint.setTemperature(number());
 		else
 			_reader.skipCurrentElement();
 	}
@ -110,11 +67,15 @@ void GPXParser::extensions(Trackpoint &trackpoint)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "speed")
-			handleTrackpointData(Speed, trackpoint);
+			trackpoint.setSpeed(number());
 		else if (_reader.name() == "hr" || _reader.name() == "heartrate")
-			handleTrackpointData(HeartRate, trackpoint);
+			trackpoint.setHeartRate(number());
 		else if (_reader.name() == "temp")
-			handleTrackpointData(Temperature, trackpoint);
+			trackpoint.setTemperature(number());
+		else if (_reader.name() == "cadence")
+			trackpoint.setCadence(number());
+		else if (_reader.name() == "power")
+			trackpoint.setPower(number());
 		else if (_reader.name() == "TrackPointExtension")
 			tpExtension(trackpoint);
 		else
@ -128,9 +89,9 @@ void GPXParser::trackpointData(Trackpoint &trackpoint)

 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "ele")
-			handleTrackpointData(Elevation, trackpoint);
+			trackpoint.setElevation(number());
 		else if (_reader.name() == "time")
-			handleTrackpointData(Time, trackpoint);
+			trackpoint.setTimestamp(time());
 		else if (_reader.name() == "geoidheight")
 			gh = number();
 		else if (_reader.name() == "extensions")
@ -149,15 +110,15 @@ void GPXParser::waypointData(Waypoint &waypoint)

 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "name")
-			handleWaypointData(Name, waypoint);
+			waypoint.setName(_reader.readElementText());
 		else if (_reader.name() == "desc")
-			handleWaypointData(Description, waypoint);
+			waypoint.setDescription(_reader.readElementText());
 		else if (_reader.name() == "ele")
-			handleWaypointData(Elevation, waypoint);
+			waypoint.setElevation(number());
 		else if (_reader.name() == "geoidheight")
 			gh = number();
 		else if (_reader.name() == "time")
-			handleWaypointData(Time, waypoint);
+			waypoint.setTimestamp(time());
 		else
 			_reader.skipCurrentElement();
 	}
--- a/src/gpxparser.h
+++ b/src/gpxparser.h
@ -17,10 +17,6 @@ public:
 	int errorLine() const {return _reader.lineNumber();}

 private:
-	enum DataType {
-		Name, Description, Elevation, Time, Speed, HeartRate, Temperature
-	};
-
 	bool parse();
 	void gpx();
 	void track(TrackData &track);
@ -34,9 +30,6 @@ private:
 	QDateTime time();
 	Coordinates coordinates();

-	void handleWaypointData(DataType type, Waypoint &waypoint);
-	void handleTrackpointData(DataType type, Trackpoint &trackpoint);
-
 	QXmlStreamReader _reader;
 };

--- a/src/gui.cpp
+++ b/src/gui.cpp
@ -33,6 +33,8 @@
 #include "speedgraph.h"
 #include "heartrategraph.h"
 #include "temperaturegraph.h"
+#include "cadencegraph.h"
+#include "powergraph.h"
 #include "pathview.h"
 #include "trackinfo.h"
 #include "filebrowser.h"
@ -512,6 +514,8 @@ void GUI::createGraphTabs()
 	_tabs.append(new ElevationGraph);
 	_tabs.append(new SpeedGraph);
 	_tabs.append(new HeartRateGraph);
+	_tabs.append(new CadenceGraph);
+	_tabs.append(new PowerGraph);
 	_tabs.append(new TemperatureGraph);

 	for (int i = 0; i < _tabs.count(); i++)
--- a/src/powergraph.cpp
+++ b/src/powergraph.cpp
@ -0,0 +1,84 @@
+#include "data.h"
+#include "powergraph.h"
+
+
+PowerGraph::PowerGraph(QWidget *parent) : GraphTab(parent)
+{
+	_units = Metric;
+	_showTracks = true;
+
+	GraphView::setYUnits(tr("W"));
+	setYLabel(tr("Power"));
+
+	setSliderPrecision(1);
+}
+
+void PowerGraph::setInfo()
+{
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
+}
+
+void PowerGraph::loadData(const Data &data, const QList<PathItem *> &paths)
+{
+	for (int i = 0; i < data.tracks().count(); i++) {
+		const Graph &graph = data.tracks().at(i)->power();
+		qreal sum = 0, w = 0;
+
+		if (graph.size() < 2) {
+			skipColor();
+			continue;
+		}
+
+		for (int j = 1; j < graph.size(); j++) {
+			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+			sum += graph.at(j).y() * ds;
+			w += ds;
+		}
+		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
+
+		GraphView::loadGraph(graph, paths.at(i));
+	}
+
+	for (int i = 0; i < data.routes().count(); i++)
+		skipColor();
+
+	setInfo();
+
+	redraw();
+}
+
+qreal PowerGraph::avg() const
+{
+	qreal sum = 0, w = 0;
+	QList<QPointF>::const_iterator it;
+
+	for (it = _avg.begin(); it != _avg.end(); it++) {
+		sum += it->y() * it->x();
+		w += it->x();
+	}
+
+	return (sum / w);
+}
+
+void PowerGraph::clear()
+{
+	_avg.clear();
+
+	GraphView::clear();
+}
+
+void PowerGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	showGraph(show);
+	setInfo();
+
+	redraw();
+}
--- a/src/powergraph.h
+++ b/src/powergraph.h
@ -0,0 +1,31 @@
+#ifndef POWERGRAPH_H
+#define POWERGRAPH_H
+
+#include "graphtab.h"
+
+class PowerGraph : public GraphTab
+{
+	Q_OBJECT
+
+public:
+	PowerGraph(QWidget *parent = 0);
+
+	QString label() const {return tr("Power");}
+	void loadData(const Data &data, const QList<PathItem *> &paths);
+	void clear();
+	void setUnits(enum Units) {}
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
+
+private:
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setInfo();
+
+	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
+};
+
+#endif // POWERGRAPH_H
--- a/src/tcxparser.cpp
+++ b/src/tcxparser.cpp
@ -56,6 +56,18 @@ Coordinates TCXParser::position()
 	return pos;
 }

+void TCXParser::extensions(Trackpoint &trackpoint)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "RunCadence")
+			trackpoint.setCadence(number());
+		else if (_reader.name() == "Watts")
+			trackpoint.setPower(number());
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
 void TCXParser::trackpointData(Trackpoint &trackpoint)
 {
 	while (_reader.readNextStartElement()) {
@ -67,6 +79,10 @@ void TCXParser::trackpointData(Trackpoint &trackpoint)
 			trackpoint.setTimestamp(time());
 		else if (_reader.name() == "HeartRateBpm")
 			trackpoint.setHeartRate(number());
+		else if (_reader.name() == "Cadence")
+			trackpoint.setCadence(number());
+		else if (_reader.name() == "Extensions")
+			extensions(trackpoint);
 		else
 			_reader.skipCurrentElement();
 	}
--- a/src/tcxparser.h
+++ b/src/tcxparser.h
@ -27,6 +27,7 @@ private:
 	void trackpoints(TrackData &track);
 	void trackpointData(Trackpoint &trackpoint);
 	void waypointData(Waypoint &waypoint);
+	void extensions(Trackpoint &trackpoint);
 	Coordinates position();
 	qreal number();
 	QDateTime time();
--- a/src/track.cpp
+++ b/src/track.cpp
@ -6,6 +6,8 @@
 #define WINDOW_EF 3
 #define WINDOW_SF 7
 #define WINDOW_HF 3
+#define WINDOW_CF 3
+#define WINDOW_PF 3


 static qreal median(QVector<qreal> v)
@ -114,14 +116,10 @@ Graph Track::elevation() const
 	if (!_data.size())
 		return raw;

-	for (int i = 0; i < _data.size(); i++) {
-		if (_outliers.contains(i))
-			continue;
-
-		if (_data.at(i).hasElevation())
+	for (int i = 0; i < _data.size(); i++)
+		if (_data.at(i).hasElevation() && !_outliers.contains(i))
 			raw.append(GraphPoint(_distance.at(i), _time.at(i),
 			  _data.at(i).elevation()));
-	}

 	return filter(raw, WINDOW_EF);
 }
@ -135,12 +133,9 @@ Graph Track::speed() const
 		return raw;

 	for (int i = 0; i < _data.size(); i++) {
-		if (_outliers.contains(i))
-			continue;
-
-		if (_data.at(i).hasSpeed())
+		if (_data.at(i).hasSpeed() && !_outliers.contains(i))
 			v = _data.at(i).speed();
-		else if (!std::isnan(_speed.at(i)))
+		else if (!std::isnan(_speed.at(i)) && !_outliers.contains(i))
 			v = _speed.at(i);
 		else
 			continue;
@ -158,14 +153,10 @@ Graph Track::heartRate() const
 	if (!_data.size())
 		return raw;

-	for (int i = 0; i < _data.count(); i++) {
-		if (_outliers.contains(i))
-			continue;
-
-		if (_data.at(i).hasHeartRate())
+	for (int i = 0; i < _data.count(); i++)
+		if (_data.at(i).hasHeartRate() && !_outliers.contains(i))
 			raw.append(GraphPoint(_distance.at(i), _time.at(i),
 			  _data.at(i).heartRate()));
-	}

 	return filter(raw, WINDOW_HF);
 }
@ -174,16 +165,36 @@ Graph Track::temperature() const
 {
 	Graph raw;

-	for (int i = 0; i < _data.size(); i++) {
-		if (_outliers.contains(i))
-			continue;
-
-		if (_data.at(i).hasTemperature())
+	for (int i = 0; i < _data.size(); i++)
+		if (_data.at(i).hasTemperature() && !_outliers.contains(i))
 			raw.append(GraphPoint(_distance.at(i), _time.at(i),
 			  _data.at(i).temperature()));
-	}

-	return Graph(raw);
+	return raw;
+}
+
+Graph Track::cadence() const
+{
+	Graph raw;
+
+	for (int i = 0; i < _data.size(); i++)
+		if (_data.at(i).hasCadence() && !_outliers.contains(i))
+			raw.append(GraphPoint(_distance.at(i), _time.at(i),
+			  _data.at(i).cadence()));
+
+	return filter(raw, WINDOW_CF);
+}
+
+Graph Track::power() const
+{
+	Graph raw;
+
+	for (int i = 0; i < _data.size(); i++)
+		if (_data.at(i).hasPower() && !_outliers.contains(i))
+			raw.append(GraphPoint(_distance.at(i), _time.at(i),
+			  _data.at(i).power()));
+
+	return filter(raw, WINDOW_PF);
 }

 qreal Track::distance() const
@ -206,12 +217,9 @@ Path Track::track() const
 {
 	Path ret;

-	for (int i = 0; i < _data.size(); i++) {
-		if (_outliers.contains(i))
-			continue;
-
-		ret.append(_data.at(i).coordinates());
-	}
+	for (int i = 0; i < _data.size(); i++)
+		if (!_outliers.contains(i))
+			ret.append(_data.at(i).coordinates());

 	return ret;
 }
--- a/src/track.h
+++ b/src/track.h
@ -19,6 +19,8 @@ public:
 	Graph speed() const;
 	Graph heartRate() const;
 	Graph temperature() const;
+	Graph cadence() const;
+	Graph power() const;

 	qreal distance() const;
 	qreal time() const;
--- a/src/trackpoint.h
+++ b/src/trackpoint.h
@ -10,9 +10,11 @@ class Trackpoint
 {
 public:
 	Trackpoint()
-	  {_elevation = NAN; _speed = NAN; _heartRate = NAN; _temperature = NAN;}
+	  {_elevation = NAN; _speed = NAN; _heartRate = NAN; _temperature = NAN;
+	  _cadence = NAN; _power = NAN;}
 	Trackpoint(const Coordinates &coordinates) : _coordinates(coordinates)
-	  {_elevation = NAN; _speed = NAN; _heartRate = NAN; _temperature = NAN;}
+	  {_elevation = NAN; _speed = NAN; _heartRate = NAN; _temperature = NAN;
+	  _cadence = NAN; _power = NAN;}

 	const Coordinates &coordinates() const {return _coordinates;}
 	Coordinates &rcoordinates() {return _coordinates;}
@ -21,6 +23,8 @@ public:
 	qreal speed() const {return _speed;}
 	qreal heartRate() const {return _heartRate;}
 	qreal temperature() const {return _temperature;}
+	qreal cadence() const {return _cadence;}
+	qreal power() const {return _power;}

 	void setCoordinates(const Coordinates &coordinates)
 	  {_coordinates = coordinates;}
@ -29,12 +33,16 @@ public:
 	void setSpeed(qreal speed) {_speed = speed;}
 	void setHeartRate(qreal heartRate) {_heartRate = heartRate;}
 	void setTemperature(qreal temperature) {_temperature = temperature;}
+	void setCadence(qreal cadence) {_cadence = cadence;}
+	void setPower(qreal power) {_power = power;}

 	bool hasTimestamp() const {return !_timestamp.isNull();}
 	bool hasElevation() const {return !std::isnan(_elevation);}
 	bool hasSpeed() const {return !std::isnan(_speed);}
 	bool hasHeartRate() const {return !std::isnan(_heartRate);}
 	bool hasTemperature() const {return !std::isnan(_temperature);}
+	bool hasCadence() const {return !std::isnan(_cadence);}
+	bool hasPower() const {return !std::isnan(_power);}

 private:
 	Coordinates _coordinates;
@ -43,6 +51,8 @@ private:
 	qreal _speed;
 	qreal _heartRate;
 	qreal _temperature;
+	qreal _cadence;
+	qreal _power;
 };

 QDebug operator<<(QDebug dbg, const Trackpoint &trackpoint);