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Correct coordinate transformation

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This commit is contained in:
Sebastian Piwell
2016-06-14 13:33:55 -04:00
parent 448492c655
commit d368ad9054
4 changed files with 13 additions and 32 deletions
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5
modules/iswa/rendering/datasphere.cpp
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@@ -43,6 +43,8 @@ DataSphere::DataSphere(const ghoul::Dictionary& dictionary)
_programName = "DataSphereProgram";
_vsPath = "${MODULE_ISWA}/shaders/datasphere_vs.glsl";
_fsPath = "${MODULE_ISWA}/shaders/datasphere_fs.glsl";
}
DataSphere::~DataSphere(){}
@@ -50,6 +52,9 @@ DataSphere::~DataSphere(){}
bool DataSphere::initialize(){
IswaCygnet::initialize();
//rotate 90 degrees because of the texture coordinates in PowerScaledSphere
_rotation = glm::rotate(_rotation, (float)M_PI_2, glm::vec3(1.0, 0.0, 0.0));
if(_group){
_dataProcessor = _group->dataProcessor();
subscribeToGroup();

3
modules/iswa/rendering/iswacygnet.cpp
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@@ -42,6 +42,7 @@ IswaCygnet::IswaCygnet(const ghoul::Dictionary& dictionary)
, _shader(nullptr)
, _group(nullptr)
, _textureDirty(false)
, _rotation(glm::mat4(1.0f))
{
std::string name;
dictionary.getValue("Name", name);
@@ -146,12 +147,12 @@ void IswaCygnet::render(const RenderData& data){
psc position = data.position;
glm::mat4 transform = glm::mat4(1.0);
glm::mat4 rot = glm::mat4(1.0);
for (int i = 0; i < 3; i++){
for (int j = 0; j < 3; j++){
transform[i][j] = static_cast<float>(_stateMatrix[i][j]);
}
}
transform = transform*_rotation;
position += transform*glm::vec4(_data->spatialScale.x*_data->offset, _data->spatialScale.w);

2
modules/iswa/rendering/iswacygnet.h
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@@ -142,6 +142,7 @@ protected:
std::string _fsPath;
std::string _programName;
glm::mat4 _rotation; //to rotate objects with fliped texture coordniates
private:
bool destroyShader();
glm::dmat3 _stateMatrix;
@@ -152,6 +153,7 @@ private:
std::chrono::milliseconds _realTime;
std::chrono::milliseconds _lastUpdateRealTime;
int _minRealTimeUpdateInterval;
};
}//namespace openspace

35
src/util/transformationmanager.cpp
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@@ -39,11 +39,9 @@
#else
LWARNING("Kameleon module needed for transformations with dynamic frames");
#endif
_kameleonFrames = { "J2000", "GEI", "GEO", "MAG", "GSE", "GSM", "SM", "RTN", "GSEQ", //geocentric
"HEE", "HAE", "HEEQ" //heliocentric
};
// _dipoleFrames = {"GSM", "MAG"};
}
TransformationManager::~TransformationManager(){
@@ -68,15 +66,11 @@
_kameleon->_cxform(from.c_str(), to.c_str(), ephemerisTime, &in1, &out1);
_kameleon->_cxform(from.c_str(), to.c_str(), ephemerisTime, &in2, &out2);
glm::dmat3 out = glm::dmat3(
return glm::dmat3(
out0.c0 , out0.c1 , out0.c2,
out1.c0 , out1.c1 , out1.c2,
out2.c0 , out2.c1 , out2.c2
);
// Need to rotate 90 degrees around x-axis becuase kameleon is flipped
out = glm::dmat3(glm::rotate(glm::mat4(out), (float)M_PI_2, glm::vec3(1.0f, 0.0f, 0.0f)));
return out;
);;
}
glm::dmat3 TransformationManager::frameTransformationMatrix(std::string from,
@@ -84,32 +78,11 @@
double ephemerisTime) const
{
#ifdef OPENSPACE_MODULE_KAMELEON_ENABLED
auto fromit = _dipoleFrames.find(from);
auto toit = _dipoleFrames.find(to);
// //diopole frame to J200 makes the frame rotate.
// if(fromit != _dipoleFrames.end()) from = "GSE";
// if(toit != _dipoleFrames.end()) to = "GSE";
fromit = _kameleonFrames.find(from);
toit = _kameleonFrames.find(to);
auto fromit = _kameleonFrames.find(from);
auto toit = _kameleonFrames.find(to);
bool fromKameleon = (fromit != _kameleonFrames.end());
bool toKameleon = (toit != _kameleonFrames.end());
ccmc::Position in0 = {1.f, 0.f, 0.f};
ccmc::Position in1 = {0.f, 1.f, 0.f};
ccmc::Position in2 = {0.f, 0.f, 1.f};
glm::dmat3 in(
in0.c0, in0.c1, in0.c2,
in1.c0, in1.c1, in1.c2,
in2.c0, in2.c1, in2.c2
);
ccmc::Position out0;
ccmc::Position out1;
ccmc::Position out2;
if(!fromKameleon && !toKameleon){
return SpiceManager::ref().frameTransformationMatrix(from, to, ephemerisTime);