247 lines
8.4 KiB
C++
247 lines
8.4 KiB
C++
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/****************************************************************************
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Copyright (c) 2008, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#if (__WIN32__||__APPLE__)
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#include "stdneb.h"
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#include "http/svg/svglinechartwriter.h"
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namespace Http
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{
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__ImplementClass(Http::SvgLineChartWriter, 'SLCW', Http::SvgPageWriter);
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using namespace Util;
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using namespace Math;
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//------------------------------------------------------------------------------
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/**
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*/
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SvgLineChartWriter::SvgLineChartWriter() :
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xAxisMinVal(0),
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xAxisMaxVal(100),
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yAxisMinVal(0.0f),
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yAxisMaxVal(1.0f)
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{
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// empty
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}
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//------------------------------------------------------------------------------
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/**
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*/
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SvgLineChartWriter::~SvgLineChartWriter()
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{
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// empty
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}
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//------------------------------------------------------------------------------
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/**
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*/
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bool
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SvgLineChartWriter::Open()
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{
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// always set virtual dimensions to 1000x250
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this->SetUnitDimensions(1200, 250);
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return SvgPageWriter::Open();
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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SvgLineChartWriter::SetupXAxis(const String& axisName, const String& unitName, int minVal, int maxVal)
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{
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n_assert(maxVal > minVal);
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this->xAxisName = axisName;
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this->xAxisUnitName = unitName;
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this->xAxisMinVal = minVal;
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this->xAxisMaxVal = maxVal;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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SvgLineChartWriter::SetupYAxis(const String& axisName, const String& unitName, float minVal, float maxVal)
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{
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n_assert(maxVal > minVal);
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this->yAxisName = axisName;
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this->yAxisUnitName = unitName;
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this->yAxisMinVal = minVal;
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this->yAxisMaxVal = maxVal;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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SvgLineChartWriter::AddTrack(const String& name, const String& color, const Array<float>& values)
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{
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n_assert(values.Size() > 0);
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Track newTrack;
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this->tracks.Append(newTrack);
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this->tracks.Back().name = name;
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this->tracks.Back().color = color;
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this->tracks.Back().values = values;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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SvgLineChartWriter::AddTrack(const Util::String& name, const Util::String& color, const Util::Array<float>& values, const Util::Array<Timing::Tick>& timeStamps)
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{
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n_assert(values.Size() > 0);
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n_assert(values.Size() == timeStamps.Size());
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Track newTrack;
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this->tracks.Append(newTrack);
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this->tracks.Back().name = name;
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this->tracks.Back().color = color;
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this->tracks.Back().values = values;
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this->tracks.Back().times = timeStamps;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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SvgLineChartWriter::Draw()
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{
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// establish a transform for the main diagram
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this->BeginTransformGroup(float2(10.0f, 10.0f), 0.0f, float2(1.0f, 1.0f));
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// draw light-weight helper lines
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this->BeginPaintGroup("grey", "grey", 1);
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this->Line(0, 0, 1000, 0);
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this->Line(0, 50, 1000, 50);
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this->Line(0, 100, 1000, 100);
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this->Line(0, 150, 1000, 150);
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this->EndGroup();
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// draw the main diagram axis
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this->BeginPaintGroup("black", "black", 2);
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this->Line(0, 0, 0, 200); // left y-axis
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this->Line(1000, 0, 1000, 200); // right y-axis
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this->Line(0, 200, 1000, 200); // x-axis
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this->EndGroup();
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// for each track...
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IndexT trackIndex;
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for (trackIndex = 0; trackIndex < this->tracks.Size(); trackIndex++)
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{
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const Track& curTrack = this->tracks[trackIndex];
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float x = 0.0f;
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float dx = 1.0f / (this->xAxisMaxVal - this->xAxisMinVal);
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float minVal = 1000000.0f;
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float maxVal = -1000000.0f;
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float avgVal = 0.0f;
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IndexT valIndex = 0;
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SizeT batchSize = 100;
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Array<float2> points(batchSize + 1, 0);
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Array<Util::String> timeText(batchSize + 1, 0);
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this->BeginPaintGroup("none", curTrack.color, 2);
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while (valIndex < curTrack.values.Size())
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{
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// need to render points in chunks of 100 due to a limitation
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// in TinyXML(?), XML attribute values are limited to about 4096 characters
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float curValue;
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float curY = 0.0f;
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IndexT i;
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for (i = 0; (i < batchSize) && (valIndex < curTrack.values.Size()); i++)
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{
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curValue = curTrack.values[valIndex++];
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curY = 1.0f - (curValue - this->yAxisMinVal) / (this->yAxisMaxVal - this->yAxisMinVal);
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points.Append(float2(1000.0f * x, 200.0f * curY));
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x += dx;
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minVal = n_min(minVal, curValue);
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maxVal = n_max(maxVal, curValue);
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avgVal += curValue;
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if (curTrack.times.Size() > 0)
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{
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timeText.Append(Util::String::FromFloat((float)Timing::TicksToSeconds(curTrack.times[i])));
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}
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}
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this->PolyLine(points);
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if (curTrack.times.Size() > 0)
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{
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this->EndGroup();
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this->BeginTextGroup(8, "black");
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IndexT txtIdx;
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for (txtIdx = 0; txtIdx < timeText.Size(); ++txtIdx)
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{
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this->Text(points[txtIdx].x(), 210, timeText[txtIdx]);
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}
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this->EndGroup();
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this->BeginPaintGroup("none", curTrack.color, 2);
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timeText.Clear();
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}
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// prepare next batch
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points.Clear();
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points.Append(float2(1000.f * (x - dx), 200.0f * curY));
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}
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this->EndGroup();
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// compute average value
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avgVal /= curTrack.values.Size();
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// draw min/max/avg lines
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float minY = 1.0f - (minVal - this->yAxisMinVal) / (this->yAxisMaxVal - this->yAxisMinVal);
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float maxY = 1.0f - (maxVal - this->yAxisMinVal) / (this->yAxisMaxVal - this->yAxisMinVal);
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float avgY = 1.0f - (avgVal - this->yAxisMinVal) / (this->yAxisMaxVal - this->yAxisMinVal);
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this->BeginPaintGroup("none", curTrack.color, 1);
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this->Line(0.0f, 200.0f * minY, 1000.0f, 200.0f * minY);
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this->Line(0.0f, 200.0f * maxY, 1000.0f, 200.0f * maxY);
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this->Line(0.0f, 200.0f * avgY, 1000.0f, 200.0f * avgY);
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this->EndGroup();
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// draw min/max/avg text
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String minText;
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String maxText;
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String avgText;
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maxText.Format("max = %.3f", maxVal);
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if (avgVal != maxVal) avgText.Format("avg = %.3f", avgVal);
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if (maxVal != minVal) minText.Format("min = %.3f", minVal);
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this->BeginTextGroup(10, curTrack.color);
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this->Text(1010.0f, 200.0f * maxY, maxText);
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float curOffset = 0;
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const float minDist = 0.04f;
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if (avgY - maxY < minDist)
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{
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avgY += minDist;
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curOffset = minDist;
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}
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if (avgText.IsValid()) this->Text(1010.0f, 200.0f * avgY, avgText);
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if (minY + curOffset - avgY < minDist) minY += curOffset + minDist;
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if (minText.IsValid()) this->Text(1010.0f, 200.0f * minY, minText);
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this->EndGroup();
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}
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this->EndGroup();
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}
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} // namespace Http
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#endif
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