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C++ PointObject::getCoord方法代码示例

本文整理汇总了C++中PointObject::getCoord方法的典型用法代码示例。如果您正苦于以下问题:C++ PointObject::getCoord方法的具体用法?C++ PointObject::getCoord怎么用?C++ PointObject::getCoord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PointObject的用法示例。


在下文中一共展示了PointObject::getCoord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: snapToObject

MapCoord SnappingToolHelper::snapToObject(MapCoordF position, MapWidget* widget, SnappingToolHelperSnapInfo* info, Object* exclude_object, float snap_distance)
{
	if (snap_distance < 0)
		snap_distance = 0.001f * widget->getMapView()->pixelToLength(Settings::getInstance().getMapEditorSnapDistancePx());
	float closest_distance_sq = snap_distance * snap_distance;
	auto result_position = MapCoord { position };
	SnappingToolHelperSnapInfo result_info;
	result_info.type = NoSnapping;
	result_info.object = NULL;
	result_info.coord_index = -1;
	result_info.path_coord.pos = MapCoordF(0, 0);
	result_info.path_coord.index = -1;
	result_info.path_coord.clen = -1;
	result_info.path_coord.param = -1;
	
	if (filter & (ObjectCorners | ObjectPaths))
	{
		// Find map objects at the given position
		SelectionInfoVector objects;
		map->findAllObjectsAt(position, snap_distance, true, false, false, true, objects);
		
		// Find closest snap spot from map objects
		for (SelectionInfoVector::const_iterator it = objects.begin(), end = objects.end(); it != end; ++it)
		{
			Object* object = it->second;
			if (object == exclude_object)
				continue;
			
			float distance_sq;
			if (object->getType() == Object::Point && filter & ObjectCorners)
			{
				PointObject* point = object->asPoint();
				distance_sq = point->getCoordF().distanceSquaredTo(position);
				if (distance_sq < closest_distance_sq)
				{
					closest_distance_sq = distance_sq;
					result_position = point->getCoord();
					result_info.type = ObjectCorners;
					result_info.object = object;
					result_info.coord_index = 0;
				}
			}
			else if (object->getType() == Object::Path)
			{
				PathObject* path = object->asPath();
				if (filter & ObjectPaths)
				{
					PathCoord path_coord;
					path->calcClosestPointOnPath(position, distance_sq, path_coord);
					if (distance_sq < closest_distance_sq)
					{
						closest_distance_sq = distance_sq;
						result_position = MapCoord(path_coord.pos);
						result_info.object = object;
						if (path_coord.param == 0.0)
						{
							result_info.type = ObjectCorners;
							result_info.coord_index = path_coord.index;
						}
						else
						{
							result_info.type = ObjectPaths;
							result_info.coord_index = -1;
							result_info.path_coord = path_coord;
						}
					}
				}
				else
				{
					MapCoordVector::size_type index;
					path->calcClosestCoordinate(position, distance_sq, index);
					if (distance_sq < closest_distance_sq)
					{
						closest_distance_sq = distance_sq;
						result_position = path->getCoordinate(index);
						result_info.type = ObjectCorners;
						result_info.object = object;
						result_info.coord_index = index;
					}
				}
			}
			else if (object->getType() == Object::Text)
			{
				// No snapping to texts
				continue;
			}
		}
	}
	
	// Find closest grid snap position
	if ((filter & GridCorners) && widget->getMapView()->isGridVisible() &&
		map->getGrid().isSnappingEnabled() && map->getGrid().getDisplayMode() == MapGrid::AllLines)
	{
		MapCoordF closest_grid_point = map->getGrid().getClosestPointOnGrid(position, map);
		float distance_sq = closest_grid_point.distanceSquaredTo(position);
		if (distance_sq < closest_distance_sq)
		{
			closest_distance_sq = distance_sq;
			result_position = MapCoord(closest_grid_point);
			result_info.type = GridCorners;
//.........这里部分代码省略.........
开发者ID:sembruk,项目名称:mapper,代码行数:101,代码来源:tool_helpers.cpp


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