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plot: make the module more customizable

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This commit is contained in:
Vladislav Sovrasov
2017-08-01 15:23:29 +03:00
parent 2a9d1b22ed
commit 5c2dfcd448
3 changed files with 71 additions and 28 deletions
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40
modules/plot/include/opencv2/plot.hpp
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@@ -84,23 +84,33 @@ namespace cv
CV_WRAP virtual void setPlotGridColor(Scalar _plotGridColor) = 0;
CV_WRAP virtual void setPlotTextColor(Scalar _plotTextColor) = 0;
CV_WRAP virtual void setPlotSize(int _plotSizeWidth, int _plotSizeHeight) = 0;
CV_WRAP virtual void setShowGrid(bool needShowGrid) = 0;
CV_WRAP virtual void setShowText(bool needShowText) = 0;
CV_WRAP virtual void setGridLinesNumber(int gridLinesNumber) = 0;
/**
* @brief Sets the index of a point which coordinates will be printed on the top left corner of the plot (if ShowText flag is true).
*
* @param pointIdx index of the required point in data array.
*/
CV_WRAP virtual void setPointIdxToPrint(int pointIdx) = 0;
CV_WRAP virtual void render(OutputArray _plotResult) = 0;
};
/**
* @brief Creates Plot2d object
*
* @param data \f$1xN\f$ or \f$Nx1\f$ matrix containing \f$Y\f$ values of points to plot. \f$X\f$ values
* will be equal to indexes of correspondind elements in data matrix.
*/
CV_EXPORTS_W Ptr<Plot2d> createPlot2d(InputArray data);
/**
* @brief Creates Plot2d object
*
* @param dataX \f$1xN\f$ or \f$Nx1\f$ matrix \f$X\f$ values of points to plot.
* @param dataY \f$1xN\f$ or \f$Nx1\f$ matrix containing \f$Y\f$ values of points to plot.
*/
CV_EXPORTS_W Ptr<Plot2d> createPlot2d(InputArray dataX, InputArray dataY);
/**
* @brief Creates Plot2d object
*
* @param data \f$1xN\f$ or \f$Nx1\f$ matrix containing \f$Y\f$ values of points to plot. \f$X\f$ values
* will be equal to indexes of correspondind elements in data matrix.
*/
CV_WRAP static Ptr<Plot2d> create(InputArray data);
/**
* @brief Creates Plot2d object
*
* @param dataX \f$1xN\f$ or \f$Nx1\f$ matrix \f$X\f$ values of points to plot.
* @param dataY \f$1xN\f$ or \f$Nx1\f$ matrix containing \f$Y\f$ values of points to plot.
*/
CV_WRAP static Ptr<Plot2d> create(InputArray dataX, InputArray dataY);
};
//! @}
}
}

57
modules/plot/src/plot.cpp
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@@ -168,7 +168,26 @@ namespace cv
else
plotSizeHeight = 300;
}
void setShowGrid(bool _needShowGrid)
{
needShowGrid = _needShowGrid;
}
void setShowText(bool _needShowText)
{
needShowText = _needShowText;
}
void setGridLinesNumber(int _gridLinesNumber)
{
if(_gridLinesNumber <= 0)
_gridLinesNumber = 1;
gridLinesNumber = _gridLinesNumber;
}
void setPointIdxToPrint(int _cursorPos)
{
if(_cursorPos >= plotDataX.rows || _cursorPos < 0)
_cursorPos = plotDataX.rows - 1;
cursorPos = _cursorPos;
}
//render the plotResult to a Mat
void render(OutputArray _plotResult)
{
@@ -189,8 +208,8 @@ namespace cv
int ImageXzero = (int)InterpXdataFindZero.at<double>(NumVecElements,0);
int ImageYzero = (int)InterpYdataFindZero.at<double>(NumVecElements,0);
double CurrentX = plotDataX.at<double>(NumVecElements-1,0);
double CurrentY = plotDataY.at<double>(NumVecElements-1,0);
double CurrentX = plotDataX.at<double>(cursorPos,0);
double CurrentY = plotDataY.at<double>(cursorPos,0);
drawAxis(ImageXzero,ImageYzero, CurrentX, CurrentY, plotAxisColor, plotGridColor);
@@ -245,6 +264,10 @@ namespace cv
double plotMinY_plusZero;
double plotMaxY_plusZero;
int plotLineWidth;
bool needShowGrid;
bool needShowText;
int gridLinesNumber;
int cursorPos;
//colors of each plot element
Scalar plotLineColor;
@@ -319,22 +342,30 @@ namespace cv
setPlotBackgroundColor(Scalar(0, 0, 0));
setPlotLineColor(Scalar(0, 255, 255));
setPlotTextColor(Scalar(255, 255, 255));
setShowGrid(true);
setShowText(true);
setGridLinesNumber(10);
setPointIdxToPrint(-1);
}
void drawAxis(int ImageXzero, int ImageYzero, double CurrentX, double CurrentY, Scalar axisColor, Scalar gridColor)
{
drawValuesAsText(0, ImageXzero, ImageYzero, 10, 20);
drawValuesAsText(0, ImageXzero, ImageYzero, -20, 20);
drawValuesAsText(0, ImageXzero, ImageYzero, 10, -10);
drawValuesAsText(0, ImageXzero, ImageYzero, -20, -10);
drawValuesAsText("X = %g",CurrentX, 0, 0, 40, 20);
drawValuesAsText("Y = %g",CurrentY, 0, 20, 40, 20);
if(needShowText)
{
drawValuesAsText(0, ImageXzero, ImageYzero, 10, 20);
drawValuesAsText(0, ImageXzero, ImageYzero, -20, 20);
drawValuesAsText(0, ImageXzero, ImageYzero, 10, -10);
drawValuesAsText(0, ImageXzero, ImageYzero, -20, -10);
drawValuesAsText((format("X_%d = ", cursorPos) + "%g").c_str(), CurrentX, 0, 0, 40, 20);
drawValuesAsText((format("Y_%d = ", cursorPos) + "%g").c_str(), CurrentY, 0, 20, 40, 20);
}
//Horizontal X axis and equispaced horizontal lines
int LineSpace = 50;
int LineSpace = cvRound(plotSizeHeight / (float)gridLinesNumber);
int TraceSize = 5;
drawLine(0, plotSizeWidth, ImageYzero, ImageYzero, axisColor);
if(needShowGrid)
for(int i=-plotSizeHeight; i<plotSizeHeight; i=i+LineSpace){
if(i!=0){
@@ -349,7 +380,9 @@ namespace cv
//Vertical Y axis
drawLine(ImageXzero, ImageXzero, 0, plotSizeHeight, axisColor);
LineSpace = cvRound(LineSpace * (float)plotSizeWidth / plotSizeHeight );
if(needShowGrid)
for(int i=-plotSizeWidth; i<plotSizeWidth; i=i+LineSpace){
if(i!=0){
@@ -420,13 +453,13 @@ namespace cv
};
Ptr<Plot2d> createPlot2d(InputArray _plotData)
Ptr<Plot2d> Plot2d::create(InputArray _plotData)
{
return Ptr<Plot2dImpl> (new Plot2dImpl (_plotData));
}
Ptr<Plot2d> createPlot2d(InputArray _plotDataX, InputArray _plotDataY)
Ptr<Plot2d> Plot2d::create(InputArray _plotDataX, InputArray _plotDataY)
{
return Ptr<Plot2dImpl> (new Plot2dImpl (_plotDataX, _plotDataY));
}

2
modules/tracking/samples/benchmark.cpp
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@@ -165,7 +165,7 @@ struct AlgoWrap
void plotLTRC(Mat &img) const
{
Ptr<plot::Plot2d> p_ = plot::createPlot2d(getLTRC());
Ptr<plot::Plot2d> p_ = plot::Plot2d::create(getLTRC());
p_->render(img);
}