virtual void start_element (
const unsigned long line_number,
const std::string& name,
const dlib::attribute_list& atts
)
{
try
{
if (ts.size() == 0)
{
if (name != "dataset")
{
std::ostringstream sout;
sout << "Invalid XML document. Root tag must be <dataset>. Found <" << name << "> instead.";
throw dlib::error(sout.str());
}
else
{
ts.push_back(name);
return;
}
}
if (name == "box")
{
if (atts.is_in_list("top")) temp_box.rect.top() = sa = atts["top"];
else throw dlib::error("<box> missing required attribute 'top'");
if (atts.is_in_list("left")) temp_box.rect.left() = sa = atts["left"];
else throw dlib::error("<box> missing required attribute 'left'");
if (atts.is_in_list("width")) temp_box.rect.right() = sa = atts["width"];
else throw dlib::error("<box> missing required attribute 'width'");
if (atts.is_in_list("height")) temp_box.rect.bottom() = sa = atts["height"];
else throw dlib::error("<box> missing required attribute 'height'");
if (atts.is_in_list("difficult")) temp_box.difficult = sa = atts["difficult"];
if (atts.is_in_list("truncated")) temp_box.truncated = sa = atts["truncated"];
if (atts.is_in_list("occluded")) temp_box.occluded = sa = atts["occluded"];
temp_box.rect.bottom() += temp_box.rect.top()-1;
temp_box.rect.right() += temp_box.rect.left()-1;
}
else if (name == "part" && ts.back() == "box")
{
point temp;
if (atts.is_in_list("x")) temp.x() = sa = atts["x"];
else throw dlib::error("<part> missing required attribute 'x'");
if (atts.is_in_list("y")) temp.y() = sa = atts["y"];
else throw dlib::error("<part> missing required attribute 'y'");
if (atts.is_in_list("name"))
{
if (temp_box.parts.count(atts["name"])==0)
{
temp_box.parts[atts["name"]] = temp;
}
else
{
throw dlib::error("<part> with name '" + atts["name"] + "' is defined more than one time in a single box.");
}
}
else
{
throw dlib::error("<part> missing required attribute 'name'");
}
}
else if (name == "image")
{
temp_image.boxes.clear();
if (atts.is_in_list("file")) temp_image.filename = atts["file"];
else throw dlib::error("<image> missing required attribute 'file'");
}
ts.push_back(name);
}
catch (error& e)
{
throw dlib::error("Error on line " + cast_to_string(line_number) + ": " + e.what());
}
}
virtual void start_element (
const unsigned long ,
const std::string& name,
const dlib::attribute_list& atts
)
{
if (ts.size() == 0)
{
if (name != "dataset")
{
std::ostringstream sout;
sout << "Invalid XML document. Root tag must be <dataset>. Found <" << name << "> instead.";
throw dlib::error(sout.str());
}
else
{
ts.push_back(name);
return;
}
}
if (name == "box")
{
if (atts.is_in_list("top")) temp_box.rect.top() = sa = atts["top"];
else throw dlib::error("<box> missing required attribute 'top'");
if (atts.is_in_list("left")) temp_box.rect.left() = sa = atts["left"];
else throw dlib::error("<box> missing required attribute 'left'");
if (atts.is_in_list("width")) temp_box.rect.right() = sa = atts["width"];
else throw dlib::error("<box> missing required attribute 'width'");
if (atts.is_in_list("height")) temp_box.rect.bottom() = sa = atts["height"];
else throw dlib::error("<box> missing required attribute 'height'");
if (atts.is_in_list("difficult")) temp_box.difficult = sa = atts["difficult"];
if (atts.is_in_list("truncated")) temp_box.truncated = sa = atts["truncated"];
if (atts.is_in_list("occluded")) temp_box.occluded = sa = atts["occluded"];
temp_box.rect.bottom() += temp_box.rect.top()-1;
temp_box.rect.right() += temp_box.rect.left()-1;
}
else if (name == "head" && ts.back() == "box")
{
if (atts.is_in_list("x")) temp_box.head.x() = sa = atts["x"];
else throw dlib::error("<head> missing required attribute 'x'");
if (atts.is_in_list("y")) temp_box.head.y() = sa = atts["y"];
else throw dlib::error("<head> missing required attribute 'y'");
}
else if (name == "image")
{
temp_image.boxes.clear();
if (atts.is_in_list("file")) temp_image.filename = atts["file"];
else throw dlib::error("<image> missing required attribute 'file'");
}
ts.push_back(name);
}