/**
* Return a number of snap points, grid will always return 1
*
*/
std::vector<lc::EntityCoordinate> Grid::snapPoints(const lc::geo::Coordinate& coord, const lc::SimpleSnapConstrain & constrain, double minDistanceToSnap, int maxNumberOfSnapPoints) const {
std::vector<lc::EntityCoordinate> points;
if (constrain.constrain() & lc::SimpleSnapConstrain::LOGICAL) {
double mx = coord.x() * 1.0 * (1/_convUnit);
double my = coord.y() * 1.0 * (1/_convUnit);
double gs = this->_lastGridSize * 1.0 * (1/_convUnit);
double x, y;
if (mx < 0.0) {
x = (mx - gs / 2 * (1/_convUnit)) - fmod(mx - gs / 2 * (1/_convUnit), -gs);
} else {
x = (mx + gs / 2 * (1/_convUnit)) - fmod(mx + gs / 2 * (1/_convUnit), gs);
}
if (my < 0.0) {
y = (my - gs / 2 * (1/_convUnit)) - fmod(my - gs / 2 * (1/_convUnit), -gs);
} else {
y = (my + gs / 2 * (1/_convUnit)) - fmod(my + gs / 2 * (1/_convUnit), gs);
}
points.push_back(lc::EntityCoordinate(lc::geo::Coordinate(x, y), 0));
}
return points;
}
/**
* Return a number of snap points, grid will always return 1
*
*/
std::vector<lc::EntityCoordinate> MetricGrid::snapPoints(const lc::geo::Coordinate& coord, double minDistanceToSnap, int maxNumberOfSnapPoints) const {
double mx = coord.x() * 1.0;
double my = coord.y() * 1.0;
double gs = this->_lastGridSize * 1.0;
double x, y;
if (mx < 0.0) {
x = (mx - gs / 2) - fmod(mx - gs / 2, -gs);
} else {
x = (mx + gs / 2) - fmod(mx + gs / 2, gs);
}
if (my < 0.0) {
y = (my - gs / 2) - fmod(my - gs / 2, -gs);
} else {
y = (my + gs / 2) - fmod(my + gs / 2, gs);
}
std::vector<lc::EntityCoordinate> points;
points.push_back(lc::EntityCoordinate(lc::geo::Coordinate(x, y), (lc::geo::Coordinate(x, y) - coord).magnitude(), 0));
return points;
}
QList<lc::EntityDistance> SelectionManagerImpl::getEntitiesNearCoordinate(const lc::geo::Coordinate& point, double distance) const {
// This routine gives us a rought estimate of all items around the point
// this is done by checking the bounding rect. It's also fast because it uses the BSD tree from the scene
QList<QGraphicsItem*> items = _view->scene()->items(
point.x() - distance,
point.y() - distance,
distance * 2.0,
distance * 2.0,
Qt::IntersectsItemBoundingRect,
Qt::AscendingOrder);
// Now calculate for each entity if we are near the entities path
QList<lc::EntityDistance> entities;
for (int i = 0; i < items.count(); i++) {
LCGraphicsItem* item = dynamic_cast<LCGraphicsItem*>(items.at(i));
// If item == NULL then this item was not a type of LCGraphicsItem, so no bother to test it further
if (item != NULL) {
shared_ptr<const lc::Snapable> entity = dynamic_pointer_cast<const lc::Snapable>(item->entity());
if (entity != NULL) { // Not all entities might be snapable, so we only test if this is possible.
lc::geo::Coordinate eCoordinate = entity->nearestPointOnPath(point);
lc::geo::Coordinate nearestCoord = eCoordinate - point;
double cDistance = nearestCoord.magnitude();
if (cDistance < distance) {
entities.append(lc::EntityDistance(item->entity(), cDistance));
}
}
}
}
return entities;
}
QDebug operator << (QDebug dbg, const lc::geo::Coordinate& c) {
dbg.nospace() << "(" << c.x() << "," << c.y() << "," << c.z() << ")";
return dbg.space();
}