PrimitivesDrawerCV.cpp

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// ****************************************************************************
// Filename:  PrimitivesDrawerCV.cpp
// Author:    Pedram Azad
// Date:      2004
// ****************************************************************************


// ****************************************************************************
// Includes
// ****************************************************************************

#include <new> // for explicitly using correct new/delete operators on VC DSPs

#include "PrimitivesDrawerCV.h"

#include "Math/Constants.h"
#include "Structs/Structs.h"
#include "Image/IplImageAdaptor.h"
#include "Image/ByteImage.h"

#include <cv.h>



// ****************************************************************************
// Functions
// ****************************************************************************

void PrimitivesDrawerCV::DrawCircle(CByteImage *pImage, const Vec2d &center, double radius, int r, int g, int b, int thickness)
{
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvCircle(pIplImage, cvPoint(int(center.x + 0.5), int(center.y + 0.5)), int(radius + 0.5), CV_RGB(b, g, r), thickness);
        cvReleaseImageHeader(&pIplImage);
}

void PrimitivesDrawerCV::DrawEllipse(CByteImage *pImage, const Ellipse2d &ellipse, int r, int g, int b, int thickness)
{
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvEllipse(pIplImage, cvPoint(int(ellipse.center.x + 0.5), int(ellipse.center.y + 0.5)), cvSize(int(ellipse.radius_x + 0.5), int(ellipse.radius_y + 0.5)), -ellipse.angle * FLOAT_RAD2DEG, 0.0, 360.0, CV_RGB(b, g, r), thickness);
        cvReleaseImageHeader(&pIplImage);
}

void PrimitivesDrawerCV::DrawLine(CByteImage *pImage, const PointPair2d &line, int r, int g, int b, int thickness)
{
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvLine(pIplImage, cvPoint(int(line.p1.x + 0.5), int(line.p1.y + 0.5)), cvPoint(int(line.p2.x + 0.5), int(line.p2.y + 0.5)), CV_RGB(b, g, r), thickness);
        cvReleaseImageHeader(&pIplImage);
}

void PrimitivesDrawerCV::DrawLine(CByteImage *pImage, const Vec2d &p1, const Vec2d &p2, int r, int g, int b, int thickness)
{
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvLine(pIplImage, cvPoint(int(p1.x + 0.5), int(p1.y + 0.5)), cvPoint(int(p2.x + 0.5), int(p2.y + 0.5)), CV_RGB(b, g, r), thickness);
        cvReleaseImageHeader(&pIplImage);
}

void PrimitivesDrawerCV::DrawRegion(CByteImage *pImage, const MyRegion &region, int r, int g, int b, int thickness)
{
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvRectangle(pIplImage, cvPoint(region.min_x, region.min_y), cvPoint(region.max_x, region.max_y), CV_RGB(b, g, r), thickness);
        cvReleaseImageHeader(&pIplImage);
}

void PrimitivesDrawerCV::DrawConvexPolygon(CByteImage *pImage, int *pPoints, int nPoints, int r, int g, int b, int thickness)
{
        if (nPoints < 2)
        {
                printf("error: at least to points must be provided for PrimitivesDrawerCV::DrawConvexPolygon\n");
                return;
        }
        
        CvPoint *points = new CvPoint[nPoints];
        for (int i = 0, index = 0; i < nPoints; i++, index += 2)
        {
                points[i].x = pPoints[index];
                points[i].y = pPoints[index + 1];
        }


        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        if (thickness == -1)
                cvFillConvexPoly(pIplImage, points, nPoints, CV_RGB(b, g, r));
        else
        {
                for (int i = 0; i < nPoints - 1; i++)
                        cvLine(pIplImage, points[i], points[i + 1], CV_RGB(b, g, r), thickness);
                        
                if (points[0].x != points[nPoints - 1].x || points[0].y != points[nPoints - 1].y)
                        cvLine(pIplImage, points[nPoints - 1], points[0], CV_RGB(b, g, r), thickness);
        }
        cvReleaseImageHeader(&pIplImage);
        
        delete [] points;
}

void PrimitivesDrawerCV::PutText(CByteImage *pImage, const char *pText, double x, double y, double scale_x, double scale_y, int r, int g, int b, int thickness)
{
        CvFont font;
        cvInitFont(&font, CV_FONT_VECTOR0, scale_x, scale_y, 0, thickness);
        IplImage *pIplImage = IplImageAdaptor::Adapt(pImage);
        cvPutText(pIplImage, pText, cvPoint(int(x + 0.5), int(y + 0.5)), &font, CV_RGB(b, g, r));
        cvReleaseImageHeader(&pIplImage);
}