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C++ GeoBounds::IsInside方法代码示例

本文整理汇总了C++中GeoBounds::IsInside方法的典型用法代码示例。如果您正苦于以下问题:C++ GeoBounds::IsInside方法的具体用法?C++ GeoBounds::IsInside怎么用?C++ GeoBounds::IsInside使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GeoBounds的用法示例。


在下文中一共展示了GeoBounds::IsInside方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: FindLatitudeLongitude

void
TrailRenderer::Draw(Canvas &canvas, const TraceComputer &trace_computer,
                    const WindowProjection &projection, unsigned min_time,
                    bool enable_traildrift, const RasterPoint pos,
                    const NMEAInfo &basic, const DerivedInfo &calculated,
                    const TrailSettings &settings)
{
  if (settings.length == TrailSettings::Length::OFF)
    return;

  if (!LoadTrace(trace_computer, min_time, projection))
    return;

  if (!calculated.wind_available)
    enable_traildrift = false;

  GeoPoint traildrift;
  if (enable_traildrift) {
    GeoPoint tp1 = FindLatitudeLongitude(basic.location,
                                         calculated.wind.bearing,
                                         calculated.wind.norm);
    traildrift = basic.location - tp1;
  }

  auto minmax = GetMinMax(settings.type, trace);
  auto value_min = minmax.first;
  auto value_max = minmax.second;

  bool scaled_trail = settings.scaling_enabled &&
                      projection.GetMapScale() <= 6000;

  const GeoBounds bounds = projection.GetScreenBounds().Scale(4);

  RasterPoint last_point = RasterPoint(0, 0);
  bool last_valid = false;
  for (auto it = trace.begin(), end = trace.end(); it != end; ++it) {
    const GeoPoint gp = enable_traildrift
      ? it->GetLocation().Parametric(traildrift,
                                     it->CalculateDrift(basic.time))
      : it->GetLocation();
    if (!bounds.IsInside(gp)) {
      /* the point is outside of the MapWindow; don't paint it */
      last_valid = false;
      continue;
    }

    RasterPoint pt = projection.GeoToScreen(gp);

    if (last_valid) {
      if (settings.type == TrailSettings::Type::ALTITUDE) {
        unsigned index = GetAltitudeColorIndex(it->GetAltitude(),
                                               value_min, value_max);
        canvas.Select(look.trail_pens[index]);
        canvas.DrawLinePiece(last_point, pt);
      } else {
        unsigned color_index = GetSnailColorIndex(it->GetVario(),
                                                  value_min, value_max);
        if (it->GetVario() < 0 &&
            (settings.type == TrailSettings::Type::VARIO_1_DOTS ||
             settings.type == TrailSettings::Type::VARIO_2_DOTS ||
             settings.type == TrailSettings::Type::VARIO_DOTS_AND_LINES)) {
          canvas.SelectNullPen();
          canvas.Select(look.trail_brushes[color_index]);
          canvas.DrawCircle((pt.x + last_point.x) / 2, (pt.y + last_point.y) / 2,
                            look.trail_widths[color_index]);
        } else {
          // positive vario case

          if (settings.type == TrailSettings::Type::VARIO_DOTS_AND_LINES) {
            canvas.Select(look.trail_brushes[color_index]);
            canvas.Select(look.trail_pens[color_index]); //fixed-width pen
            canvas.DrawCircle((pt.x + last_point.x) / 2, (pt.y + last_point.y) / 2,
                              look.trail_widths[color_index]);
          } else if (scaled_trail)
            // width scaled to vario
            canvas.Select(look.scaled_trail_pens[color_index]);
          else
            // fixed-width pen
            canvas.Select(look.trail_pens[color_index]);

          canvas.DrawLinePiece(last_point, pt);
        }
      }
    }
    last_point = pt;
    last_valid = true;
  }

  if (last_valid)
    canvas.DrawLine(last_point, pos);
}
开发者ID:kwtskran,项目名称:XCSoar,代码行数:91,代码来源:TrailRenderer.cpp


注:本文中的GeoBounds::IsInside方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。