view Source/MyPlot.cpp @ 7:f7ec6d983ec0

Begins of the polar plot.

//
//  MyPlot.cpp
//  SoundField
//
//  Created by Martin Morrell on 25/06/2012.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

#include "MyPlot.h"





    
polarPlot::polarPlot(const CRect &size): CView (size)
{
    stereo_mode = 0;
    pattern = 0.5;
    width = 45;
};
    

    
    
void polarPlot::draw (CDrawContext* context)
{
    //Plot background circle
    circle(context);
    
    //Stereo Mic Patterns
    leftMicPattern(context);
    rightMicPattern(context);
   



    
    setDirty(false);
    
    
    
    //context->beginDraw();
    //context->drawRect(size);
    
    
    //        CBitmap *knob_knob = new CBitmap ("360_knob.png");
    //        context->drawBitmap(knob_knob, size);
    //
    //
    //        //Plot Ellipse
    //        context->setLineWidth (6);
    //        CColor eclColor = CColor(120,120,120,255);
    //        context->setFrameColor(eclColor);
    //        CRect hi = CRect(20, 20, 130, 130);
    //        context->drawEllipse(hi);
    
    
    //        double x = 75;
    //        double y=75;
    //        context->setFrameColor(kBlueCColor);
    //        context->setLineWidth (2);
    //        CRect fatPoint = CRect(x-1,y-1,x+1,y+1);
    //        context->drawEllipse(fatPoint);
    
    
    //CPoint *myPoint = new CPoint(50,50);
    //context->drawPolygon(myPoint, 3);
    
    //context->setFillColor(eclColor);
    //context->setFrameColor(eclColor);
    
    
    //context->endDraw();
    
    
    //setDirty (false);
};


void polarPlot::circle(CDrawContext *context)
{
    //Plot Ellipse
    context->setLineWidth (3);
    CColor eclColor = CColor(120,120,120,125);
    context->setFrameColor(eclColor);
    ;
    CRect circleSize = CRect(size.getCenter().x-size.getHeight()/2*0.82, size.getCenter().y-size.getHeight()/2*0.82, size.getCenter().x+size.getHeight()/2*0.82,  size.getCenter().y+size.getHeight()/2*0.82);
    context->drawEllipse(circleSize);
};


    
void polarPlot::leftMicPattern(CDrawContext* context)
{
    CColor redColor = CColor(255,0,0,255);
    double radius, x, y, ptA, ptB;
    int ang = 0;
    
    
    while (ang<360) {
        
        switch (stereo_mode) {
            case 0:
            {
                radius = fabs(pattern+(1-pattern)*(cos((ang-width)/180.0*M_PI))) * size.getHeight()/2*0.8;
                break;
            }
            case 1:
            {
                ptA = cos(width/180.0*M_PI) * (pattern + (1-pattern)*(cos(ang/180.0*M_PI)));
                ptB = sin(width/180.0*M_PI) * (sin(ang/180.0*M_PI));
                
                radius = fabs(ptA + ptB) * size.getHeight()/2*0.8;
                break;
            }
                
            default:
                break;
        }
        
        
        
        x = size.getCenter().x - (sin(ang/180.0*M_PI)*radius); //size.left +
        y = size.getCenter().y - (cos(ang/180.0*M_PI)*radius); //+ PLOT_OFFSET
        
        context->beginDraw();
        CPoint point = CPoint((int)x, (int)y);
        context->drawPoint(point, redColor);
        context->endDraw();
        
        
        ang++;
    }
    
};


void polarPlot::rightMicPattern(CDrawContext* context)
{
    CColor blueColor = CColor(0,0,255,255);
    double radius, x, y, ptA, ptB;
    int ang = 0;
    
    while (ang<360) {
        
        switch (stereo_mode) {
            case 0:
            {
                radius = fabs(pattern+(1-pattern)*(cos((ang+width)/180.0*M_PI))) * size.getHeight()/2*0.8;
                break;
            }
            case 1:
            {
                ptA = cos(width/180.0*M_PI) * (pattern + (1-pattern)*(cos(ang/180.0*M_PI)));
                ptB = sin(width/180.0*M_PI) * (sin(ang/180.0*M_PI));
                
                radius = fabs(ptA - ptB) * size.getHeight()/2*0.8;
                break;
            }
                
            default:
                break;
        }

        
        
        x = size.getCenter().x - (sin(ang/180.0*M_PI)*radius); //size.left +
        y = size.getCenter().y - (cos(ang/180.0*M_PI)*radius); //+ PLOT_OFFSET
        
        context->beginDraw();
        CPoint point = CPoint((int)x, (int)y);
        context->drawPoint(point, blueColor);
        context->endDraw();
        
        
        ang++;
    }
};
    
    
//void polarPlot::setBackgroundColour (const CColor& c)
//{
//    backgroundColour = c;
//};