/**
* Update the detected objects. That is, discovering new objects or
* discarding old objects or detecting moved objects. This should
* be called periodically (i.e. in Effect::animate()) or every time
* before using the detector.
*/
void AreaDetector::update() {
AreaObjects newObjects;
AreaObjects oldObjects = objects;
objects.clear();
memset(workMatrix, false, count * sizeof(bool));
// Discover all objects.
for (unsigned int x = 0; x < width; ++x) {
for (unsigned int y = 0; y < height; ++y) {
unsigned int currentIndex = x + y * width;
if (! workMatrix[currentIndex]) {
// This cell was not checked yet
if (env->getMatrix()[currentIndex]) {
// The current cell is being "touched", we found an object
newObjects.push_back(identifyObject(x, y));
}
}
}
}
// Check for objects that have already existed before (i.e. moving objects).
for (unsigned int i = 0; i < newObjects.size(); ++i) {
unsigned int j = 0;
bool found = false;
AreaObjects::iterator iter = oldObjects.begin();
while (!found && j < oldObjects.size()) {
unsigned int maxX = newObjects[i].x > oldObjects[j].x ? newObjects[i].x : oldObjects[j].x;
unsigned int minX = newObjects[i].x < oldObjects[j].x ? newObjects[i].x : oldObjects[j].x;
unsigned int maxY = newObjects[i].y > oldObjects[j].y ? newObjects[i].y : oldObjects[j].y;
unsigned int minY = newObjects[i].y < oldObjects[j].y ? newObjects[i].y : oldObjects[j].y;
// Check if the object is within the range specified by threshold.
float dist = sqrt( ((maxX - minX)^2) + ((maxY - minY)^2) );
if(dist < threshold) {
found = true;
}
else {
++j;
++iter;
}
}
if (found) {
// The object exists already within the range specified by threshold.
newObjects[i].id = oldObjects[j].id;
oldObjects.erase(iter);
}
else {
// The object seems to be new, therefore a new identifier is generated.
newObjects[i].id = ++lastId;
}
objects.push_back(newObjects[i]);
}
}
int MainUI::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QMainWindow::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: updatePointView((*reinterpret_cast< hash_map<int,Entity*>*(*)>(_a[1]))); break;
case 1: updateNodeInfo((*reinterpret_cast< QString(*)>(_a[1])),(*reinterpret_cast< QString(*)>(_a[2]))); break;
case 2: newProject(); break;
case 3: quit(); break;
case 4: showAllObjects(); break;
case 5: saveCurrentScreen(); break;
case 6: itemView(); break;
case 7: editorView(); break;
case 8: filterPtsByOBAFilter(); break;
case 9: classifyObjs(); break;
case 10: resetEntitysType(); break;
case 11: extractBuildingManual(); break;
case 12: exportBuilding(); break;
case 13: autoRun(); break;
case 14: datasetInfo(); break;
case 15: importDTM(); break;
case 16: importPoint(); break;
case 17: importRectangle(); break;
case 18: importTIN(); break;
case 19: text2las(); break;
case 20: las2text(); break;
case 21: about(); break;
case 22: showMousePos((*reinterpret_cast< const int(*)>(_a[1])),(*reinterpret_cast< const int(*)>(_a[2]))); break;
case 23: identifyObject((*reinterpret_cast< const int(*)>(_a[1])),(*reinterpret_cast< const int(*)>(_a[2]))); break;
case 24: cancelBuilding((*reinterpret_cast< const int(*)>(_a[1]))); break;
case 25: useEntityParam((*reinterpret_cast< const QString(*)>(_a[1])),(*reinterpret_cast< const int(*)>(_a[2]))); break;
default: ;
}
_id -= 26;
}
return _id;
}
