| 64 | } |
| 65 | |
| 66 | double CalculateZoomByMaxSpeed(double speedMpS, bool isPerspectiveAllowed) |
| 67 | { |
| 68 | using TSpeedScale = std::pair<double, double>; |
| 69 | static std::array<TSpeedScale, 2> const scales2d = {{ |
| 70 | {0.0, 1.75}, {77.0, 4.50} // 48 mph |
| 71 | }}; |
| 72 | static std::array<TSpeedScale, 2> const scales3d = {{{0.0, 1.00}, {77.0, 4.50}}}; |
| 73 | |
| 74 | std::array<TSpeedScale, 2> const & scales = isPerspectiveAllowed ? scales3d : scales2d; |
| 75 | |
| 76 | double constexpr kDefaultSpeedLimitKmpH = 50.0; |
| 77 | double const speedKmpH = speedMpS > 0 ? measurement_utils::MpsToKmph(speedMpS) : kDefaultSpeedLimitKmpH; |
| 78 | |
| 79 | size_t i = 0; |
| 80 | for (size_t sz = scales.size(); i < sz; ++i) |
| 81 | if (scales[i].first >= speedKmpH) |
| 82 | break; |
| 83 | |
| 84 | double const vs = GetVisualScale(); |
| 85 | |
| 86 | if (i == 0) |
| 87 | return scales.front().second / vs; |
| 88 | |
| 89 | return scales[i - 1].second / vs; |
| 90 | } |
| 91 | |
| 92 | double CalculateZoomByDistanceToTurn(double distance, bool isPerspectiveAllowed) |
| 93 | { |
no test coverage detected