private static HashMap<String, Double> checkVisibility(
String spatialcontext, GeoFeature feature, Database db, String viewpoint)
throws SQLException, ClassNotFoundException, IOException {
double tolerance;
if (viewpoint == null || viewpoint.isEmpty()) {
tolerance = POINTCLOUD_TOLERANCE;
} else {
ResultSet startViewpoint = db.getViewpoint(spatialcontext, viewpoint);
if (startViewpoint.next()) {
String filename =
Config.getProperty("pointcloudpath") + startViewpoint.getString("filename");
Transformation t = new Transformation(startViewpoint.getString("pointcloud_trans"));
t.transform(new Transformation(startViewpoint.getString("viewpoint_trans")));
feature.transform(t.inverse());
tolerance = feature.getPointTol(filename);
feature.transform(t);
if (tolerance < POINTCLOUD_TOLERANCE) {
tolerance = POINTCLOUD_TOLERANCE;
}
} else {
tolerance = POINTCLOUD_TOLERANCE;
}
}
// result.last();
// int size = result.getRow();
// result.beforeFirst();
ResultSet result = db.getViewpoints(spatialcontext);
HashMap<String, Double> visibility = new HashMap<>();
while (result.next()) {
// user.setStatus(result.getRow() * 90 / size);
String filename = Config.getProperty("pointcloudpath") + result.getString("filename");
Transformation t = new Transformation(result.getString("pointcloud_trans"));
t.transform(new Transformation(result.getString("viewpoint_trans")));
feature.transform(t.inverse());
visibility.put(result.getString("name"), feature.visible(tolerance, filename));
feature.transform(t);
}
return visibility;
}
