本文整理汇总了C++中AbstractAirspace::is_base_terrain方法的典型用法代码示例。如果您正苦于以下问题：C++ AbstractAirspace::is_base_terrain方法的具体用法？C++ AbstractAirspace::is_base_terrain怎么用？C++ AbstractAirspace::is_base_terrain使用的例子？那么恭喜您, 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类AbstractAirspace的用法示例。
在下文中一共展示了AbstractAirspace::is_base_terrain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: brush
/**
* Renders the AbstractAirspace on the canvas
* @param as AbstractAirspace to render
*/
void
Render(const AbstractAirspace& as)
{
int type = as.get_type();
if (type <= 0)
return;
// No intersections for this airspace
if (m_intersections.empty())
return;
// Select pens and brushes
#ifdef ENABLE_SDL
Color color =
Graphics::GetAirspaceColour(settings.colours[type]);
#ifdef ENABLE_OPENGL
color = color.with_alpha(48);
#endif
Brush brush(color);
#else
const Brush &brush = Graphics::GetAirspaceBrushByClass(type, settings);
canvas.set_text_color(light_color(Graphics::GetAirspaceColourByClass(type, settings)));
#endif
PixelRect rcd;
// Calculate top and bottom coordinate
rcd.top = chart.screenY(as.get_top_altitude(state));
if (as.is_base_terrain())
rcd.bottom = chart.screenY(fixed_zero);
else
rcd.bottom = chart.screenY(as.get_base_altitude(state));
// Iterate through the intersections
for (AirspaceIntersectionVector::const_iterator it = m_intersections.begin();
it != m_intersections.end(); ++it) {
const GeoPoint p_start = it->first;
const GeoPoint p_end = it->second;
const fixed distance_start = start.distance(p_start);
const fixed distance_end = start.distance(p_end);
// Determine left and right coordinate
rcd.left = chart.screenX(distance_start);
rcd.right = chart.screenX(distance_end);
// only one edge found, next edge must be beyond screen
if ((rcd.left == rcd.right) && (p_start == p_end)) {
rcd.right = chart.screenX(chart.getXmax());
}
// Draw the airspace
RenderBox(rcd, brush, settings.black_outline, type);
}
}