static asFileType DetectFileType(const TCHAR *line) { if (string_after_prefix_ci(line, _T("INCLUDE=")) || string_after_prefix_ci(line, _T("TYPE="))) return ftTNP; const TCHAR *p = string_after_prefix_ci(line, _T("AC")); if (p != NULL && (string_is_empty(p) || *p == _T(' '))) return ftOpenAir; return ftUnknown; }
static bool ParseArcTNP(const TCHAR *Text, TempAirspaceType &temp_area) { if (temp_area.points.empty()) return false; // (ANTI-)CLOCKWISE RADIUS=34.95 CENTRE=N523333 E0131603 TO=N522052 E0122236 GeoPoint from = temp_area.points.back(); const TCHAR* parameter; if ((parameter = _tcsstr(Text, _T(" "))) == NULL) return false; if ((parameter = string_after_prefix_ci(parameter, _T(" CENTRE="))) == NULL) return false; ParseCoordsTNP(parameter, temp_area.Center); GeoPoint to; if ((parameter = _tcsstr(parameter, _T(" "))) == NULL) return false; parameter++; if ((parameter = _tcsstr(parameter, _T(" "))) == NULL) return false; if ((parameter = string_after_prefix_ci(parameter, _T(" TO="))) == NULL) return false; ParseCoordsTNP(parameter, to); Angle bearing_from; Angle bearing_to; fixed radius; static const fixed fixed_75 = fixed(7.5); const Angle BearingStep = Angle::degrees(temp_area.Rotation * fixed(5)); DistanceBearing(temp_area.Center, from, &radius, &bearing_from); bearing_to = Bearing(temp_area.Center, to); GeoPoint TempPoint; while ((bearing_to - bearing_from).magnitude_degrees() > fixed_75) { bearing_from += BearingStep; bearing_from = bearing_from.as_bearing(); FindLatitudeLongitude(temp_area.Center, bearing_from, radius, &TempPoint); temp_area.points.push_back(TempPoint); } return true; }
static bool ParseCircleTNP(const TCHAR *Text, TempAirspaceType &temp_area) { // CIRCLE RADIUS=17.00 CENTRE=N533813 E0095943 const TCHAR* parameter; if ((parameter = string_after_prefix_ci(Text, _T("RADIUS="))) == NULL) return false; temp_area.Radius = Units::ToSysUnit(fixed(_tcstod(parameter, NULL)), unNauticalMiles); if ((parameter = _tcsstr(parameter, _T(" "))) == NULL) return false; if ((parameter = string_after_prefix_ci(parameter, _T(" CENTRE="))) == NULL) return false; ParseCoordsTNP(parameter, temp_area.Center); return true; }
static bool ParseLineTNP(Airspaces &airspace_database, const TCHAR *line, TempAirspaceType &temp_area, bool &ignore) { const TCHAR* parameter; if ((parameter = string_after_prefix_ci(line, _T("INCLUDE="))) != NULL) { if (_tcsicmp(parameter, _T("YES")) == 0) ignore = false; else if (_tcsicmp(parameter, _T("NO")) == 0) ignore = true; return true; } if (ignore) return true; if ((parameter = string_after_prefix_ci(line, _T("TITLE="))) != NULL) { temp_area.Name = parameter; } else if ((parameter = string_after_prefix_ci(line, _T("RADIO="))) != NULL) { temp_area.Radio = parameter; } else if ((parameter = string_after_prefix_ci(line, _T("ACTIVE="))) != NULL) { if (_tcsicmp(parameter, _T("WEEKEND")) == 0) temp_area.days_of_operation.set_weekend(); else if (_tcsicmp(parameter, _T("WEEKDAY")) == 0) temp_area.days_of_operation.set_weekdays(); else if (_tcsicmp(parameter, _T("EVERYDAY")) == 0) temp_area.days_of_operation.set_all(); } else if ((parameter = string_after_prefix_ci(line, _T("TYPE="))) != NULL) { if (!temp_area.Waiting) temp_area.AddPolygon(airspace_database); temp_area.reset(); temp_area.Type = ParseTypeTNP(parameter); temp_area.Waiting = false; } else if ((parameter = string_after_prefix_ci(line, _T("CLASS="))) != NULL) { if (temp_area.Type == OTHER) temp_area.Type = ParseClassTNP(parameter); } else if ((parameter = string_after_prefix_ci(line, _T("TOPS="))) != NULL) { ReadAltitude(parameter, &temp_area.Top); } else if ((parameter = string_after_prefix_ci(line, _T("BASE="))) != NULL) { ReadAltitude(parameter, &temp_area.Base); } else if ((parameter = string_after_prefix_ci(line, _T("POINT="))) != NULL) { GeoPoint TempPoint; if (!ParseCoordsTNP(parameter, TempPoint)) return false; temp_area.points.push_back(TempPoint); } else if ((parameter = string_after_prefix_ci(line, _T("CIRCLE "))) != NULL) { if (!ParseCircleTNP(parameter, temp_area)) return false; temp_area.AddCircle(airspace_database); } else if ((parameter = string_after_prefix_ci(line, _T("CLOCKWISE "))) != NULL) { temp_area.Rotation = 1; if (!ParseArcTNP(parameter, temp_area)) return false; } else if ((parameter = string_after_prefix_ci(line, _T("ANTI-CLOCKWISE "))) != NULL) { temp_area.Rotation = -1; if (!ParseArcTNP(parameter, temp_area)) return false; } return true; }
static bool ParseLine(Airspaces &airspace_database, const TCHAR *line, TempAirspaceType &temp_area) { const TCHAR *value; // Only return expected lines switch (line[0]) { case _T('A'): case _T('a'): switch (line[1]) { case _T('C'): case _T('c'): value = value_after_space(line + 2); if (value == NULL) break; if (!temp_area.Waiting) temp_area.AddPolygon(airspace_database); temp_area.reset(); temp_area.Type = ParseType(value); temp_area.Waiting = false; break; case _T('N'): case _T('n'): value = value_after_space(line + 2); if (value != NULL) temp_area.Name = value; break; case _T('R'): case _T('r'): value = value_after_space(line + 2); if (value != NULL) temp_area.Radio = value; break; case _T('L'): case _T('l'): value = value_after_space(line + 2); if (value != NULL) ReadAltitude(value, &temp_area.Base); break; case _T('H'): case _T('h'): value = value_after_space(line + 2); if (value != NULL) ReadAltitude(value, &temp_area.Top); break; default: return true; } break; case _T('D'): case _T('d'): switch (line[1]) { case _T('A'): case _T('a'): CalculateSector(line, temp_area); break; case _T('B'): case _T('b'): CalculateArc(line, temp_area); break; case _T('C'): case _T('c'): temp_area.Radius = Units::ToSysUnit(fixed(_tcstod(&line[2], NULL)), unNauticalMiles); temp_area.AddCircle(airspace_database); temp_area.reset(); break; case _T('P'): case _T('p'): value = value_after_space(line + 2); if (value == NULL) break; { GeoPoint TempPoint; if (!ReadCoords(value, TempPoint)) return false; temp_area.points.push_back(TempPoint); break; } default: return true; } break; case _T('V'): case _T('v'): // Need to set these while in count mode, or DB/DA will crash if (string_after_prefix_ci(&line[2], _T("X="))) { if (!ReadCoords(&line[4],temp_area.Center)) return false; } else if (string_after_prefix_ci(&line[2], _T("D=-"))) { temp_area.Rotation = -1; } else if (string_after_prefix_ci(&line[2], _T("D=+"))) { temp_area.Rotation = +1; } break; } return true; }