成员的完整列表，这些成员属于 eve::building_editing::BuildingPlacementPreview,包括所有继承而来的类成员

cells	eve::building_editing::BuildingPlacementPreview
diagnostics	eve::building_editing::BuildingPlacementPreview
elevation	eve::building_editing::BuildingPlacementPreview
normalizedRotation	eve::building_editing::BuildingPlacementPreview
snappedCellX	eve::building_editing::BuildingPlacementPreview
snappedCellY	eve::building_editing::BuildingPlacementPreview
snappedWorldX	eve::building_editing::BuildingPlacementPreview
snappedWorldY	eve::building_editing::BuildingPlacementPreview
status	eve::building_editing::BuildingPlacementPreview
worldRevision	eve::building_editing::BuildingPlacementPreview