bool GeometryUtils::project(const Mat4d& projectionMultViewMatrix, const Vec2i& viewportPosition, const Vec2ui& viewportSize, const Vec3d& point, Vec3d* out)
{
CVF_ASSERT(out);
Vec4d v = projectionMultViewMatrix * Vec4d(point, 1.0);
if (v.w() == 0.0f)
{
return false;
}
v.x() /= v.w();
v.y() /= v.w();
v.z() /= v.w();
// map to range 0-1
out->x() = v.x()*0.5 + 0.5;
out->y() = v.y()*0.5 + 0.5;
out->z() = v.z()*0.5 + 0.5;
// map to viewport
out->x() = out->x() * viewportSize.x() + viewportPosition.x();
out->y() = out->y() * viewportSize.y() + viewportPosition.y();
return true;
}
Intersector* RayIntersector::clone(IntersectionVisitor& iv)
{
if (_coordinateFrame==MODEL && iv.getModelMatrix()==0)
{
return new RayIntersector(MODEL, _start, _direction, this, _intersectionLimit);
}
Matrix matrix(LineSegmentIntersector::getTransformation(iv, _coordinateFrame));
Vec3d newStart = _start * matrix;
Vec4d tmp = Vec4d(_start + _direction, 1.) * matrix;
Vec3d newEnd = Vec3d(tmp.x(), tmp.y(), tmp.z()) - (newStart * tmp.w());
return new RayIntersector(MODEL, newStart, newEnd, this, _intersectionLimit);
}
Array* Array_readLocalData(Input& fr)
{
if (fr[0].matchWord("Use"))
{
if (fr[1].isString())
{
Object* obj = fr.getObjectForUniqueID(fr[1].getStr());
if (obj)
{
fr+=2;
return dynamic_cast<Array*>(obj);
}
}
osg::notify(osg::WARN)<<"Warning: invalid uniqueID found in file."<<std::endl;
return NULL;
}
std::string uniqueID;
if (fr[0].matchWord("UniqueID") && fr[1].isString())
{
uniqueID = fr[1].getStr();
fr += 2;
}
int entry = fr[0].getNoNestedBrackets();
const char* arrayName = fr[0].getStr();
unsigned int capacity = 0;
fr[1].getUInt(capacity);
++fr;
fr += 2;
Array* return_array = 0;
if (strcmp(arrayName,"ByteArray")==0)
{
ByteArray* array = new ByteArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"ShortArray")==0)
{
ShortArray* array = new ShortArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"IntArray")==0)
{
IntArray* array = new IntArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UByteArray")==0)
{
UByteArray* array = new UByteArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UShortArray")==0)
{
UShortArray* array = new UShortArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UIntArray")==0)
{
UIntArray* array = new UIntArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UVec4bArray")==0 || strcmp(arrayName,"Vec4ubArray")==0)
{
Vec4ubArray* array = new Vec4ubArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4ub(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"FloatArray")==0)
{
FloatArray* array = new FloatArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
float float_value;
if (fr[0].getFloat(float_value))
{
++fr;
array->push_back(float_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"DoubleArray")==0)
{
DoubleArray* array = new DoubleArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
double double_value;
if (fr[0].getFloat(double_value))
{
++fr;
array->push_back(double_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2Array")==0)
{
Vec2Array* array = new Vec2Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec2 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()))
{
fr += 2;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2dArray")==0)
{
Vec2dArray* array = new Vec2dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec2d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()))
{
fr += 2;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3Array")==0)
{
Vec3Array* array = new Vec3Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec3 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()))
{
fr += 3;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3dArray")==0)
{
Vec3dArray* array = new Vec3dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec3d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()))
{
fr += 3;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4Array")==0)
{
Vec4Array* array = new Vec4Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec4 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()) && fr[3].getFloat(v.w()))
{
fr += 4;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4dArray")==0)
{
Vec4dArray* array = new Vec4dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec4d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()) && fr[3].getFloat(v.w()))
{
fr += 4;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2bArray")==0)
{
Vec2bArray* array = new Vec2bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g))
{
fr+=2;
array->push_back(osg::Vec2b(r,g));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3bArray")==0)
{
Vec3bArray* array = new Vec3bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b))
{
fr+=3;
array->push_back(osg::Vec3b(r,g,b));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4bArray")==0)
{
Vec4bArray* array = new Vec4bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4b(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2sArray")==0)
{
Vec2sArray* array = new Vec2sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g))
{
fr+=2;
array->push_back(osg::Vec2s(r,g));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3sArray")==0)
{
Vec3sArray* array = new Vec3sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b))
{
fr+=3;
array->push_back(osg::Vec3s(r,g,b));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4sArray")==0)
{
Vec4sArray* array = new Vec4sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4s(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
if (return_array)
{
if (!uniqueID.empty()) fr.registerUniqueIDForObject(uniqueID.c_str(),return_array);
}
return return_array;
}
int main(void)
{
try
{
using namespace oglplus;
shapes::Sphere s(1.0, 3, 4);
shapes::ShapeAnalyzer a(s);
std::cout << "graph Shape {" << std::endl;
std::cout << "\tsplines=true;" << std::endl;
std::cout << "\tnode [shape=box];" << std::endl;
auto tm =
ModelMatrixd::Scale(5, 5, 5)*
CamMatrixd::PerspectiveX(Angle<double>::Degrees(80), 1, 1, 20)*
CamMatrixd::LookingAt(Vec3d(5, 5, 5), Vec3d());
for(GLuint f=0; f!=a.FaceCount(); ++f)
{
auto face = a.Face(f);
Vec4d v0 = face.Vert(0).MainAttrib();
Vec4d v1 = face.Vert(1).MainAttrib();
Vec4d v2 = face.Vert(2).MainAttrib();
Vec4d v = tm*Vec4d((v0+v1+v2).xyz()/3.0, 1.0);
std::cout
<< "\tf" << f
<< " [label=\"" << f << "\""
<< ", pos=\"" << v.x() << "," << v.y() << "\""
<< "];" << std::endl;
}
std::cout
<< "\tnode ["
<< "shape=circle,"
<< "style=filled,"
<< "fillcolor=\"#00FF00\""
<< "];" << std::endl;
for(GLuint f=0; f!=a.FaceCount(); ++f)
{
auto face = a.Face(f);
for(GLuint e=0; e!=face.Arity(); ++e)
{
std::cout
<< "\tf" << f
<< "e" << e
<< " [label=\"" << e
<< "\"];" << std::endl;
std::cout
<< "\tf" << f
<< " -- "
<< "f" << f
<< "e" << e
<< ";" << std::endl;
}
}
for(GLuint f=0; f!=a.FaceCount(); ++f)
{
auto face = a.Face(f);
for(GLuint e=0; e!=face.Arity(); ++e)
{
auto edge = face.Edge(e);
if(edge.HasAdjacentEdge())
{
auto adje = edge.AdjacentEdge();
GLuint ae = adje.Index();
GLuint af = adje.Face().Index();
if(f < af)
{
std::cout
<< "\tf" << f
<< "e" << e
<< " -- f" << af
<< "e" << ae;
if(edge.IsStripEdge())
{
std::cout << " [style=bold]";
}
else
{
std::cout << " [style=dotted]";
}
std::cout << std::endl;
}
}
}
}
std::cout << "\toverlap=false;" << std::endl;
std::cout << "}" << std::endl;
return 0;
}
catch(oglplus::Error& err)
{
std::cerr
<< "Error (in "
<< err.GLFunc()
<< "'): "
<< err.what()
<< " ["
<< err.SourceFile()
<< ":"
<< err.SourceLine()
<< "] "
<< std::endl;
}
return 1;
}
