/**
* @brief Tests the sending and receiving of information through streams.
*/
void SearchResultTester::testStreamMethods()
{
QList<SearchResultElement> list;
SearchResult s(list);
SearchResultElement element1;
element1.setScore(2);
SearchResultElement element2;
element2.setScore(4);
s.addResultElement(element1);
s.addResultElement(element2);
QFile file("file.dat");
file.open(QIODevice::WriteOnly);
QDataStream out(&file);
out << s;
file.close();
file.open(QIODevice::ReadOnly);
QDataStream in(&file);
SearchResult newS(list);
in >> newS;
file.close();
QCOMPARE(s.getSearchResultList().takeFirst().getScore(), newS.getSearchResultList().takeFirst().getScore());
QCOMPARE(s.getSearchResultList().takeLast().getScore(), newS.getSearchResultList().takeLast().getScore());
}
//Addition operator
UtlString operator+(const char* szStr, const UtlString& str)
{
UtlString newS(szStr);
newS.append(str);
return newS;
}
Actor* Parser::parseMesh(xml_node_iterator sceneElement)
{
// setting the mesh
const char* filename = sceneElement->attribute("file").value();
TriangleMesh* mesh = MeshReader().execute(filename);
Primitive* primitive = new TriangleMeshShape(mesh);
xml_node op;
if ((op = sceneElement->child("transform")) != NULL) {
vec3 position(0, 0, 0);
quat q(vec3(0, 0, 0));
vec3 scale(1, 1, 1);
float x, y, z;
xml_object_range<xml_node_iterator> transformations = op.children();
for (xml_node_iterator transformation = transformations.begin(); transformation != transformations.end(); ++transformation)
{
if (strcmp(transformation->name(), "position") == 0)
{
const char * stringTranslation = transformation->text().as_string();
sscanf(stringTranslation, "%f %f %f", &x, &y, &z);
vec3 translationVec(x, y, z);
position = translationVec;
}
else if (strcmp(transformation->name(), "scale") == 0)
{
float s_ = transformation->text().as_float();
vec3 newS(s_, s_, s_);
scale = newS;
}
else if (strcmp(transformation->name(), "rotation") == 0)
{
float angle = transformation->child("angle").text().as_float();
const char * _Axis = transformation->child("axis").text().as_string();
sscanf(_Axis, "%f %f %f", &x, &y, &z);
vec3 axis(x, y, z);
q = quat(axis, angle);
}
mesh->transform(mat4::TRS(position, q, scale));
}
}
if ((op = sceneElement->child("material")) != NULL) {
Material * material = parseMaterial(op);
primitive->setMaterial(material);
}
else
{
Material * material = MaterialFactory::New();
primitive->setMaterial(material->getDefault());
}
Actor* act = new Actor(*primitive);
act->setName(filename);
return act;
}
Actor* Parser::parseSphere(xml_node_iterator sceneElement)
{
// default values
vec3 center(0, 0, 0);
REAL radius = 1.0;
int meridians = 16;
// opt values
xml_node op;
op = sceneElement->child("center");
REAL x, y, z;
if (op != NULL)
{
const char* center_vector = op.text().as_string();
sscanf(center_vector, "%f %f %f", &x, &y, &z);
center.set(x, y, z);
}
op = sceneElement->child("radius");
if (op != NULL)
radius = op.text().as_float();
op = sceneElement->child("meridians");
if (op != NULL)
meridians = op.text().as_int();
// now, lets make the mesh of Sphere
TriangleMesh* sphereMesh = MeshSweeper::makeSphere(center, radius, meridians);
Primitive* primitive = new TriangleMeshShape(sphereMesh);
if ((op = sceneElement->child("transform")) != NULL) {
vec3 position(0, 0, 0);
quat q(vec3(0, 0, 0));
vec3 scale(1, 1, 1);
float x, y, z;
xml_object_range<xml_node_iterator> transformations = op.children();
for (xml_node_iterator transformation = transformations.begin(); transformation != transformations.end(); ++transformation)
{
if (strcmp(transformation->name(), "position") == 0)
{
const char * stringTranslation = transformation->text().as_string();
sscanf(stringTranslation, "%f %f %f", &x, &y, &z);
vec3 translationVec(x, y, z);
position = translationVec;
}
else if (strcmp(transformation->name(), "scale") == 0)
{
float s_ = transformation->text().as_float();
vec3 newS(s_, s_, s_);
scale = newS;
}
else if (strcmp(transformation->name(), "rotation") == 0)
{
float angle = transformation->child("angle").text().as_float();
const char * _Axis = transformation->child("axis").text().as_string();
sscanf(_Axis, "%f %f %f", &x, &y, &z);
vec3 axis(x, y, z);
q = quat(axis, angle);
}
sphereMesh->transform(mat4::TRS(position, q, scale));
}
}
if ((op = sceneElement->child("material")) != NULL) {
Material * material = parseMaterial(op);
primitive->setMaterial(material);
}
else
{
Material * material = MaterialFactory::New();
primitive->setMaterial(material->getDefault());
}
Actor* act = new Actor(*primitive);
act->setName("sphere");
return act;
}
// Cria os codigos de cada simbolo de acordo com Shannon-Fano
void makeCodes(vector<Symbol> & s)
{
double x = 0, w = 0, a =0;
short i = 0, j = 0, z = 0;
for (short i = 0; i < s.size(); i++)
// Calcula a quantidade total de simbolos
z+= s[i].getOcorrence();
for (short i = 0; i < s.size(); i++)
s[i].calculateProbability(z);
do
// Atribui o codigo zero aos simbolos do lado esquerdo da arvore
{
x += s[i].getProbability();
s[i].addCharCode('0');
i++;
w = x + s[i].getProbability();
}while (w < 0.5);
// Calcula a diferença de probabilidade das partes da arvore
w = abs(0.5 - w);
x = abs(0.5 - x);
a = abs(w - x);
if (!((a < std::numeric_limits<double>::epsilon())&&(a!=0))&&(w < x))
// Neste caso é melhor pegar o proximo elemento
// (sua probabilidade fica mais equilibrada com a do outro lado da arvore)
{
s[i].addCharCode('0');
i++;
}
j = i;
while (i < s.size())
// Atribui o codigo um aos simbolos do lado direito da arvore
{
s[i].addCharCode('1');
i++;
}
// Separa o vector de simbolos em duas partes a depender da probabilidade dos mesmos
vector<Symbol> newS (s.begin(),s.begin()+j);
vector<Symbol> newS1 (s.begin()+j,s.end()); // (s.begin()+j+1 se for no windows)
if (j > 1)
// Neste caso existem mais do que um elementos do lado esquerdo, logo é necessario expandir ambos os lados da arvore
{
makeCodes(newS);
makeCodes(newS1);
}
else if (i > 2)
// Neste caso existe mais do que dois elementos do lado direito, logo so é necessario expandir o lado direito da arvore
makeCodes(newS1);
for (int y = 0; y < s.size(); y++)
// Atribui o codigo dos simbolos de acordo com a posição dos mesmos na arvore
if (y < j)
s[y].setCode(newS[y].getCode());
else
s[y].setCode(newS1[y-j].getCode());
}
