C++ (Cpp) ScaleXFromData Examples

Example #1

File: Statistics.cpp Project: JanezKolar/LK8000

void Statistics::RenderBarograph(HDC hdc, RECT rc)
{

  ResetScale();
  ScaleXFromData(rc, &flightstats.Altitude);
  ScaleYFromData(rc, &flightstats.Altitude);
  ScaleXFromData(rc, &flightstats.Altitude_Base);
  ScaleYFromData(rc, &flightstats.Altitude_Base);
  ScaleXFromData(rc, &flightstats.Altitude_Ceiling);
  ScaleYFromData(rc, &flightstats.Altitude_Ceiling);

  DrawXGrid(hdc, rc, 
            0.25, flightstats.Altitude.x_min,
            STYLE_THINDASHPAPER);

  DrawYGrid(hdc, rc, 1000/ALTITUDEMODIFY, 0, STYLE_THINDASHPAPER);

  DrawLineGraph(hdc, rc, &flightstats.Altitude,
                STYLE_MEDIUMBLACK);

  LockTaskData();
  for(int j=0;j<MAXTASKPOINTS;j++) {
    if (ValidTaskPoint(j) && (LegStartTime[j]>=0)) {
      double xx = (LegStartTime[j]-Calculated->TakeOffTime)/3600;
      if (xx>=0) {
        DrawLine(hdc, rc,
                 xx, flightstats.Altitude.y_min,
                 xx, flightstats.Altitude.y_max,
                 STYLE_THINDASHPAPER);
      }
    }
  }
  UnlockTaskData();

  DrawTrend(hdc, rc, &flightstats.Altitude_Base, STYLE_BLUETHIN);

  DrawTrend(hdc, rc, &flightstats.Altitude_Ceiling, STYLE_BLUETHIN);

  DrawXLabel(hdc, rc, TEXT("t"));
  DrawYLabel(hdc, rc, TEXT("h"));

}

Example #2

File: Statistics.cpp Project: JanezKolar/LK8000

void Statistics::RenderWind(HDC hdc, RECT rc) 
{
  int numsteps=10;
  int i;
  double h;
  Vector wind;
  bool found=true;
  double mag;

  LeastSquares windstats_mag;
  
  if (fabs(flightstats.Altitude_Ceiling.y_max
	   -flightstats.Altitude_Base.y_min)<1) return;

  for (i=0; i<numsteps ; i++) {

    h = (flightstats.Altitude_Ceiling.y_max-flightstats.Altitude_Base.y_min)*
      i/(double)(numsteps-1)+flightstats.Altitude_Base.y_min;

    wind = windanalyser->windstore.getWind(h, &found);
    mag = sqrt(wind.x*wind.x+wind.y*wind.y);

    windstats_mag.least_squares_update(mag, h);

  }
  
  //

  ResetScale();

  ScaleXFromValue(rc, 0);
  ScaleXFromData(rc, &windstats_mag);
  ScaleYFromData(rc, &windstats_mag);

  DrawYGrid(hdc, rc, 1000/ALTITUDEMODIFY, 0, STYLE_THINDASHPAPER);
  DrawXGrid(hdc, rc, 5/LIFTMODIFY, 0, STYLE_THINDASHPAPER);

  DrawLineGraph(hdc, rc, &windstats_mag,
                STYLE_MEDIUMBLACK);

#define WINDVECTORMAG 25

  numsteps = (int)((rc.bottom-rc.top)/WINDVECTORMAG)-1;

  // draw direction vectors

  POINT wv[4];
  double dX, dY;
  double angle;
  double hfact;
  for (i=0; i<numsteps ; i++) {
    hfact = (i+1)/(double)(numsteps+1);
    h = (flightstats.Altitude_Ceiling.y_max-flightstats.Altitude_Base.y_min)*
      hfact+flightstats.Altitude_Base.y_min;

    wind = windanalyser->windstore.getWind(h, &found);
    if (windstats_mag.x_max == 0)
      windstats_mag.x_max=1;  // prevent /0 problems
    wind.x /= windstats_mag.x_max;
    wind.y /= windstats_mag.x_max;
    mag = sqrt(wind.x*wind.x+wind.y*wind.y);
    if (mag<= 0.0) continue;

    angle = atan2(wind.x,-wind.y)*RAD_TO_DEG;

    wv[0].y = (int)((1-hfact)*(rc.bottom-rc.top))+rc.top;
    wv[0].x = (rc.right+rc.left)/2;

    dX = (mag*WINDVECTORMAG);
    dY = 0;
    rotate(dX,dY,angle);
    wv[1].x = (int)(wv[0].x + dX);
    wv[1].y = (int)(wv[0].y + dY);
    StyleLine(hdc, wv[0], wv[1], STYLE_MEDIUMBLACK);

    dX = (mag*WINDVECTORMAG-5);
    dY = -3;
    rotate(dX,dY,angle);
    wv[2].x = (int)(wv[0].x + dX);
    wv[2].y = (int)(wv[0].y + dY);
    StyleLine(hdc, wv[1], wv[2], STYLE_MEDIUMBLACK);

    dX = (mag*WINDVECTORMAG-5);
    dY = 3;
    rotate(dX,dY,angle);
    wv[3].x = (int)(wv[0].x + dX);
    wv[3].y = (int)(wv[0].y + dY);

    StyleLine(hdc, wv[1], wv[3], STYLE_MEDIUMBLACK);


  }

  DrawXLabel(hdc, rc, TEXT("w"));
  DrawYLabel(hdc, rc, TEXT("h"));

}

Example #3

File: RenderSpeed.cpp Project: PhilColbert/LK8000

void Statistics::RenderSpeed(LKSurface& Surface, const RECT& rc)
{

  if ((flightstats.Task_Speed.sum_n<2)
      || !ValidTaskPoint(ActiveTaskPoint)) {
    DrawNoData(Surface, rc);
    return;
  }

  ResetScale();

  ScaleXFromData(rc, &flightstats.Task_Speed);
  ScaleYFromData(rc, &flightstats.Task_Speed);
  ScaleYFromValue(rc, 0);
  ScaleXFromValue(rc, flightstats.Task_Speed.x_min+1.0); // in case no data
  ScaleXFromValue(rc, flightstats.Task_Speed.x_min); 

  for(int j=1;j<MAXTASKPOINTS;j++) {
    if (ValidTaskPoint(j) && (flightstats.LegStartTime[j]>=0)) {
      double xx = 
        (flightstats.LegStartTime[j]-CALCULATED_INFO.TaskStartTime)/3600.0;
      if (xx>=0) {
        DrawLine(Surface, rc,
                 xx, y_min,
                 xx, y_max,
                 STYLE_REDTHICK);
      }
    }
  }

  DrawXGrid(Surface, rc,
            0.5, flightstats.Task_Speed.x_min,
            STYLE_THINDASHPAPER, 0.5, true);

 /* DrawYGrid(hdc, rc, 10/TASKSPEEDMODIFY, 0, STYLE_THINDASHPAPER,
            10, true);*/
  if(Units::GetUserHorizontalSpeedUnit() == unStatuteMilesPerHour) {
    DrawYGrid(Surface, rc, 5.0/TASKSPEEDMODIFY, 0, STYLE_THINDASHPAPER, 5.0, true);
  } else {
    DrawYGrid(Surface, rc, 10/TASKSPEEDMODIFY, 0, STYLE_THINDASHPAPER, 10, true);
  }

  DrawLineGraph(Surface, rc, &flightstats.Task_Speed,STYLE_MEDIUMBLACK);

  DrawTrend(Surface, rc, &flightstats.Task_Speed, STYLE_BLUETHIN);


  if(INVERTCOLORS || IsDithered())
    Surface.SetTextColor(RGB_DARKGREEN);
  else
    Surface.SetTextColor(RGB_GREEN);

  Surface.SetBackgroundOpaque();

  TCHAR text[80];
  DrawXLabel(Surface, rc, TEXT(" t/h "));
  _stprintf(text,TEXT(" v/%s "),Units::GetHorizontalSpeedName());
  DrawYLabel(Surface, rc, text);


//  DrawXLabel(hdc, rc, TEXT("t"));
//  DrawYLabel(hdc, rc, TEXT("V"));

}