本文整理汇总了C++中optional::bottom方法的典型用法代码示例。如果您正苦于以下问题：C++ optional::bottom方法的具体用法？C++ optional::bottom怎么用？C++ optional::bottom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类optional的用法示例。
在下文中一共展示了optional::bottom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: CollisionFeature
// for icons
// Icons collision features are always SymbolPlacementType::Point, which means the collision feature
// will be viewport-rotation-aligned even if the icon is map-rotation-aligned (e.g. `icon-rotation-alignment: map`
// _or_ `symbol-placement: line`). We're relying on most icons being "close enough" to square that having
// incorrect rotation alignment doesn't throw off collision detection too much.
// See: https://github.com/mapbox/mapbox-gl-js/issues/4861
CollisionFeature(const GeometryCoordinates& line,
const Anchor& anchor,
optional<PositionedIcon> shapedIcon,
const float boxScale,
const float padding,
const IndexedSubfeature& indexedFeature_,
const float rotate)
: CollisionFeature(line, anchor,
(shapedIcon ? shapedIcon->top() : 0),
(shapedIcon ? shapedIcon->bottom() : 0),
(shapedIcon ? shapedIcon->left() : 0),
(shapedIcon ? shapedIcon->right() : 0),
boxScale,
padding,
style::SymbolPlacementType::Point,
indexedFeature_, 1, rotate) {}