void LL_to_BearRange(double Lat_TP, double Long_TP, double Lat_Pnt, double Long_Pnt, double *Bearing, double *Range)
{
double pos_X, pos_Y;
xLL_to_XY(Lat_TP,
Long_TP,
Lat_Pnt,
Long_Pnt,
&pos_X, &pos_Y);
double bea;
double ran;
xXY_Brg_Rng(0,0,pos_X, pos_Y, &bea, &ran);
*Bearing = bea;
*Range = ran;
}
// Used by dlgTarget only
// A note about this function. We are changing map drawing parameters here, but we paint from the winmain thread.
// We are NOT using this from drawthread! the dialog target pan is sort of an hack, and not a good example.
// Do not consider emulating the target dialog, because it should be moved to draw thread somehow.
void MapWindow::SetTargetPan(bool do_pan, int target_point, DWORD dlgSize /* = 0 */)
{
static double old_latitude;
static double old_longitude;
if(dlgSize)
targetPanSize = dlgSize;
if (!mode.Is(Mode::MODE_TARGET_PAN) || (TargetPanIndex != target_point)) {
targetMoved = false;
}
TargetPanIndex = target_point;
if (do_pan && !mode.Is(Mode::MODE_TARGET_PAN)) {
old_latitude = PanLatitude;
old_longitude = PanLongitude;
mode.Special(do_pan ? Mode::MODE_SPECIAL_TARGET_PAN : Mode::MODE_SPECIAL_PAN, true);
zoom.SwitchMode();
}
if (do_pan) {
LockTaskData();
if (ValidTaskPoint(target_point)) {
PanLongitude = WayPointList[Task[target_point].Index].Longitude;
PanLatitude = WayPointList[Task[target_point].Index].Latitude;
if (target_point==0) {
TargetZoomDistance = max(2e3, (double)StartRadius*2);
} else if (!ValidTaskPoint(target_point+1)) {
TargetZoomDistance = max(2e3, (double)FinishRadius*2);
} else if (AATEnabled) {
if (Task[target_point].AATType == SECTOR) {
const double start = Task[target_point].AATStartRadial;
const double finish = Task[target_point].AATFinishRadial;
const double xs = fastsine(start);
const double ys = fastcosine(start);
const double xf = fastsine(finish);
const double yf = fastcosine(finish);
// calculate rectangle area taken by the sector
const double top = AngleInRange(start, finish, 0, true) ? 1 : max(max(ys, yf), 0.0);
const double right = AngleInRange(start, finish, 90, true) ? 1 : max(max(xs, xf), 0.0);
const double bottom = AngleInRange(start, finish, 180, true) ? -1 : min(min(ys, yf), 0.0);
const double left = AngleInRange(start, finish, 270, true) ? -1 : min(min(xs, xf), 0.0);
// get area center
const double radius = Task[target_point].AATSectorRadius;
const double x = (left + right) / 2;
const double y = (top + bottom) / 2;
double bearing, range;
xXY_Brg_Rng(0, 0, x, y, &bearing, &range);
// find area center geographic data
FindLatitudeLongitude(WayPointList[Task[target_point].Index].Latitude,
WayPointList[Task[target_point].Index].Longitude,
bearing, range * radius, &PanLatitude, &PanLongitude);
TargetZoomDistance = max(2e3, max(right - left, top - bottom) * radius);
} else {
TargetZoomDistance = max(2e3, Task[target_point].AATCircleRadius*2);
}
} else {
TargetZoomDistance = max(2e3, (double)SectorRadius*2);
}
}
UnlockTaskData();
}
else if (mode.Is(Mode::MODE_TARGET_PAN)) {
PanLongitude = old_longitude;
PanLatitude = old_latitude;
mode.Special(Mode::MODE_SPECIAL_TARGET_PAN, do_pan);
zoom.SwitchMode();
}
mode.Special(Mode::MODE_SPECIAL_TARGET_PAN, do_pan);
}