Exemplo n.º 1
0
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;
}
Exemplo n.º 2
0
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);
}
Exemplo n.º 3
0
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;
}
Exemplo n.º 4
0
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;
}