Cmiss_field_cache::~Cmiss_field_cache()
{
for (ValueCacheVector::iterator iter = valueCaches.begin(); iter < valueCaches.end(); ++iter)
{
delete (*iter);
*iter = 0;
}
Cmiss_region_remove_field_cache(region, this);
delete location;
Cmiss_region_destroy(®ion);
}
struct Cmiss_region *Cmiss_context_create_region(struct Context *context)
{
Cmiss_region *region = NULL;
if (context)
{
// all regions share the element shapes and bases from the default_region
if (!context->root_region)
{
Cmiss_region *default_region = Cmiss_context_get_default_region(context);
Cmiss_region_destroy(&default_region);
}
region = Cmiss_region_create_region(context->root_region);
}
else
{
display_message(ERROR_MESSAGE,
"Cmiss_context_create_region. Missing context");
}
return region;
}
StrainMeasures::StrainMeasures(std::vector<std::string> mesh) :
mySegments(NULL) {
num_level_sets = 10;
num_elements = 48;
num_nodes = 98;
elements.resize(num_elements);
x_discret = 25;
y_discret = 25;
lagrangian = true;
modelPGS = 0.0;
computeModelPGS = false;
ejectionFraction = 0.0;
extraNodeStartID = 100000;
LVMyocardialVolume* lvm = new LVMyocardialVolume(mesh);
volumes = lvm->getMyocardialVolumes();
delete lvm;
//Read the mesh
context_ = Cmiss_context_create("strainmeasure");
/**< Handle to the context */
Cmiss_region_id root_region = Cmiss_context_get_default_region(context_);
//This required for using the cmiss_context_execute_command
Cmiss_context_enable_user_interface(context_, NULL);
//Load the finite element mesh of the heart
std::string region_name = "heart";
Cmiss_region_id heart_region = Cmiss_region_create_child(root_region, region_name.c_str());
//Get the field module of the heart region
field_module = Cmiss_region_get_field_module(heart_region);
fieldCache = Cmiss_field_module_create_cache(field_module);
numberOfModelFrames_ = mesh.size();
double denom = numberOfModelFrames_ - 1;
for (unsigned int i = 0; i < numberOfModelFrames_; i++) {
double time = static_cast<double>(i) / denom;
Cmiss_stream_information_id stream_information = Cmiss_region_create_stream_information(root_region);
Cmiss_stream_information_region_id stream_information_region = Cmiss_stream_information_cast_region(stream_information);
Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, mesh[i].c_str(), mesh[i].length());
Cmiss_stream_information_region_set_resource_attribute_real(stream_information_region, stream_resource, CMISS_STREAM_INFORMATION_REGION_ATTRIBUTE_TIME, time);
Cmiss_region_read(root_region, stream_information);
Cmiss_stream_resource_destroy(&stream_resource);
Cmiss_stream_information_destroy(&stream_information);
Cmiss_stream_information_region_destroy(&stream_information_region);
}
{ //Define the necessary fields
std::string referenceMesh = mesh[0];
//Change coordinate name to reference_coordinates
boost::replace_all(referenceMesh, "1) coordinates", "1) reference_coordinates");
//Load the reference coordinates mesh
Cmiss_stream_information_id stream_information = Cmiss_region_create_stream_information(root_region);
Cmiss_stream_information_region_id stream_information_region = Cmiss_stream_information_cast_region(stream_information);
Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, referenceMesh.c_str(), referenceMesh.length());
Cmiss_region_read(root_region, stream_information);
Cmiss_stream_resource_destroy(&stream_resource);
Cmiss_stream_information_destroy(&stream_information);
}
coordianteField = Cmiss_field_module_find_field_by_name(field_module, "reference_coordinates");
if (!coordianteField) {
std::cout << "reference_coordinates field not found " << std::endl;
}
Cmiss_region_destroy(&heart_region);
//#Calculate the strains
Cmiss_field_module_define_field(field_module, "F", "gradient coordinate reference_coordinates field coordinates");
Cmiss_field_module_define_field(field_module, "F_transpose", "transpose source_number_of_rows 3 field F");
Cmiss_field_module_define_field(field_module, "C", "matrix_multiply number_of_rows 3 fields F_transpose F");
Cmiss_field_module_define_field(field_module, "principal_strains", "eigenvalues field C");
Cmiss_field_destroy(&coordianteField);
//Assign the coordinates field to the handle for downstream use
coordianteField = Cmiss_field_module_find_field_by_name(field_module, "coordinates");
//Define the fibre field
{
//Load the reference fibre data and reference coordinates
{
if (Cmiss_field_module_find_field_by_name(field_module, "fibres") == NULL) {
Cmiss_stream_information_id stream_information = Cmiss_region_create_stream_information(root_region);
Cmiss_stream_information_region_id stream_information_region = Cmiss_stream_information_cast_region(stream_information);
//Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, reffibre_exregion, reffibre_exregion_len);
Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, humandtifibre_exregion,
humandtifibre_exregion_len);
Cmiss_region_read(root_region, stream_information);
Cmiss_stream_resource_destroy(&stream_resource);
Cmiss_stream_information_destroy(&stream_information);
}
//Define fibre field
//#Calculate the deformed fibre axes
Cmiss_field_module_define_field(field_module, "fibre_axes", "fibre_axes coordinate reference_coordinates fibre fibres");
Cmiss_field_module_define_field(field_module, "deformed_fibre_axes", "matrix_multiply number_of_rows 3 fields fibre_axes F_transpose");
Cmiss_field_module_define_field(field_module, "deformed_fibre", "composite deformed_fibre_axes.1 deformed_fibre_axes.2 deformed_fibre_axes.3");
Cmiss_field_module_define_field(field_module, "principal_fibre_strain1", "composite deformed_fibre_axes.1");
}
}
//Determine the myocardial volume
//Get the element and node handles
Cmiss_mesh_id cmiss_mesh = Cmiss_field_module_find_mesh_by_name(field_module, "cmiss_mesh_3d");
Cmiss_element_iterator_id elementIterator = Cmiss_mesh_create_element_iterator(cmiss_mesh);
Cmiss_element_id element = Cmiss_element_iterator_next(elementIterator);
while (element != NULL) {
int elementId = Cmiss_element_get_identifier(element) - 1; //Cmiss numbering starts at 1
elements[elementId] = element;
element = Cmiss_element_iterator_next(elementIterator);
}
Cmiss_element_iterator_destroy(&elementIterator);
Cmiss_mesh_destroy(&cmiss_mesh);
Cmiss_region_destroy(&root_region);
}
ShortAxisFitting::ShortAxisFitting(std::vector<std::string> mesh, std::vector<std::vector<Point3D> > markers) :
inputMesh(mesh), saxMarkers(markers) {
numberOfModelFrames_ = mesh.size();
cmiss_nodes.resize(98);
//Load the mesh
//Initialise cmgui and get context
context_ = Cmiss_context_create("saxfit");
//This required for using the cmiss_context_execute_command
Cmiss_context_enable_user_interface(context_, NULL);
/**< Handle to the context */
Cmiss_region_id root_region = Cmiss_context_get_default_region(context_);
std::string region_name = "heart";
// Create a heart region
Cmiss_region_id heart_region = Cmiss_region_create_child(root_region, region_name.c_str());
// Read in the heart model spaced over the number of model frames
for (unsigned int i = 0; i < numberOfModelFrames_ - 1; i++)
{
double time = static_cast<double>(i) / numberOfModelFrames_;
Cmiss_stream_information_id stream_information = Cmiss_region_create_stream_information(root_region);
Cmiss_stream_information_region_id stream_information_region = Cmiss_stream_information_cast_region(stream_information);
Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, mesh[i].c_str(), mesh[i].length());
Cmiss_stream_information_region_set_resource_attribute_real(stream_information_region, stream_resource, CMISS_STREAM_INFORMATION_REGION_ATTRIBUTE_TIME, time);
Cmiss_region_read(root_region, stream_information);
Cmiss_stream_resource_destroy(&stream_resource);
Cmiss_stream_information_destroy(&stream_information);
Cmiss_stream_information_region_destroy(&stream_information_region);
}
// Wrap the end point add another set of nodes at time 1.0
{
Cmiss_stream_information_id stream_information = Cmiss_region_create_stream_information(root_region);
Cmiss_stream_information_region_id stream_information_region = Cmiss_stream_information_cast_region(stream_information);
Cmiss_stream_resource_id stream_resource = Cmiss_stream_information_create_resource_memory_buffer(stream_information, mesh[0].c_str(), mesh[0].length());
int r = Cmiss_stream_information_region_set_resource_attribute_real(stream_information_region, stream_resource, CMISS_STREAM_INFORMATION_REGION_ATTRIBUTE_TIME, 1.0);
Cmiss_region_read(root_region, stream_information);
Cmiss_stream_resource_destroy(&stream_resource);
Cmiss_stream_information_destroy(&stream_information);
Cmiss_stream_information_region_destroy(&stream_information_region);
}
//Cmiss_region_id heart_region = Cmiss_region_find_child_by_name(root_region, region_name.c_str());
//Get the field module of the heart region
field_module_ = Cmiss_region_get_field_module(heart_region);
if (field_module_ != 0)
{
Cmiss_field_module_begin_change(field_module_);
// 'coordinates' is an assumed field in
// a rc coordinate system.
coordinates_rc_ = Cmiss_field_module_find_field_by_name(field_module_, "coordinates");
//Create the cache
cache = Cmiss_field_module_create_cache(field_module_);
Cmiss_field_module_end_change(field_module_);
//Get node handles
Cmiss_nodeset_id nodeset = Cmiss_field_module_find_nodeset_by_name(field_module_, "cmiss_nodes");
Cmiss_node_iterator_id nodeIterator = Cmiss_nodeset_create_node_iterator(nodeset);
Cmiss_node_id node = Cmiss_node_iterator_next(nodeIterator);
if (node != 0)
{
while (node)
{
int node_id = Cmiss_node_get_identifier(node);
cmiss_nodes[node_id - 1] = node;
node = Cmiss_node_iterator_next(nodeIterator);
}
}
Cmiss_nodeset_destroy(&nodeset);
Cmiss_node_iterator_destroy(&nodeIterator);
int endo[] =
{ 55, 57, 71, 73, 66, 67, 69, 60, 61, 63, 52, 53, 54, 56, 70, 72, 64, 65, 68, 58, 59, 62, 50, 51, 77, 84, 85, 81, 82, 83, 78, 79, 80, 74, 75, 76, 89, 96, 97, 93, 94, 95,
90, 91, 92, 86, 87, 88, 98 };
memcpy(endoNodeIds, endo, sizeof(int) * 49);
//int sax[] = { 73, 74, 75, 76, 83, 84, 80, 81, 82, 77, 78, 79 };
//int sax[] = { 79, 78, 77, 82, 81, 80, 84, 83, 76, 75, 74, 73 };
int sax[] = { 80, 81, 82, 77, 78, 79, 73, 74, 75, 76, 83, 84 };
memcpy(saxNodes, sax, sizeof(int) * NUMBER_OF_SAX_NODES);
segmentNodes = new double*[24];
for (int i = 0; i < 24; i++)
{
segmentNodes[i] = new double[2];
}
//Store the initial endo coordinates
const int NUMBER_OF_ENDO_NODES = 48; //Skip apex
double coord[3];
for(int frame = 0;frame<numberOfModelFrames_;frame++){
std::vector<Point3D> frameCoords;
Cmiss_field_module_begin_change(field_module_);
{
double time = ((double) frame) / ((double) numberOfModelFrames_);
if (frame == (numberOfModelFrames_ - 1))
{
time = 1.0;
}
Cmiss_field_cache_set_time(cache, time);
for (int nc = 0; nc < NUMBER_OF_ENDO_NODES; nc++)
{
Cmiss_field_cache_set_node(cache, cmiss_nodes[endoNodeIds[nc] - 1]);
Cmiss_field_evaluate_real(coordinates_rc_, cache, 3, coord);
Point3D start(coord);
frameCoords.push_back(start);
}
initEndoCoordinates.push_back(frameCoords);
}
Cmiss_field_module_end_change(field_module_);
}
//Set the segment node ids
segmentNodes[0][0] = aplaxNodes0;
segmentNodes[0][1] = aplaxNodes1;
segmentNodes[1][0] = aplaxNodes1;
segmentNodes[1][1] = aplaxNodes2;
segmentNodes[2][0] = aplaxNodes2;
segmentNodes[2][1] = aplaxNodes3;
segmentNodes[3][0] = aplaxNodes3;
segmentNodes[3][1] = aplaxNodes4;
segmentNodes[4][0] = aplaxNodes4;
segmentNodes[4][1] = aplaxNodes5;
segmentNodes[5][0] = aplaxNodes5;
segmentNodes[5][1] = aplaxNodes6;
segmentNodes[6][0] = aplaxNodes6;
segmentNodes[6][1] = aplaxNodes7;
segmentNodes[7][0] = aplaxNodes7;
segmentNodes[7][1] = aplaxNodes8;
segmentNodes[8][0] = tchNodes0;
segmentNodes[8][1] = tchNodes1;
segmentNodes[9][0] = tchNodes1;
segmentNodes[9][1] = tchNodes2;
segmentNodes[10][0] = tchNodes2;
segmentNodes[10][1] = tchNodes3;
segmentNodes[11][0] = tchNodes3;
segmentNodes[11][1] = tchNodes4;
segmentNodes[12][0] = tchNodes4;
segmentNodes[12][1] = tchNodes5;
segmentNodes[13][0] = tchNodes5;
segmentNodes[13][1] = tchNodes6;
segmentNodes[14][0] = tchNodes6;
segmentNodes[14][1] = tchNodes7;
segmentNodes[15][0] = tchNodes7;
segmentNodes[15][1] = tchNodes8;
segmentNodes[16][0] = fchNodes0;
segmentNodes[16][1] = fchNodes1;
segmentNodes[17][0] = fchNodes1;
segmentNodes[17][1] = fchNodes2;
segmentNodes[18][0] = fchNodes2;
segmentNodes[18][1] = fchNodes3;
segmentNodes[19][0] = fchNodes3;
segmentNodes[19][1] = fchNodes4;
segmentNodes[20][0] = fchNodes4;
segmentNodes[20][1] = fchNodes5;
segmentNodes[21][0] = fchNodes5;
segmentNodes[21][1] = fchNodes6;
segmentNodes[22][0] = fchNodes6;
segmentNodes[22][1] = fchNodes7;
segmentNodes[23][0] = fchNodes7;
segmentNodes[23][1] = fchNodes8;
//Compute the segment lengths
initialSegmentLengths = new double[NUMBER_OF_SEGMENTS * numberOfModelFrames_];
ShortAxisOptimizationInput input;
input.NUMBER_OF_SEGMENTS = NUMBER_OF_SEGMENTS;
input.cache = cache;
input.cmiss_nodes = &cmiss_nodes;
input.coordinates_rc = coordinates_rc_;
input.result = &initialSegmentLengths;
input.numberOfModelFrames = numberOfModelFrames_;
input.initialSegmentLengths = NULL;
input.segmentNodes = segmentNodes;
getSegmentLengths(&input);
//Compute the average rotation that of the sax markers
std::vector<Point3D>& iptCoord(saxMarkers[0]);
unsigned int numSaxMarkers = iptCoord.size();
Point3D saxCentroid(0, 0, 0);
for (int i = 0; i < numSaxMarkers; i++)
{
saxCentroid += iptCoord[i];
}
saxCentroid = saxCentroid*(-1.0/numSaxMarkers);
initFrame = iptCoord;
for (int i = 0; i < numSaxMarkers; i++)
{
initFrame[i]+=saxCentroid;
}
for(int frame = 0;frame<numberOfModelFrames_;frame++){
std::vector<Point3D>& ipCoord(saxMarkers[frame]);
unsigned int numSaxMarkers = ipCoord.size();
Point3D saxcentroid(0, 0, 0);
for (int i = 0; i < numSaxMarkers; i++)
{
saxcentroid += ipCoord[i];
}
saxcentroid = saxcentroid*(-1.0/numSaxMarkers);
std::vector<Point3D> currentFrame(ipCoord);
for (int i = 0; i < numSaxMarkers; i++)
{
currentFrame[i]+=saxcentroid;
}
double avgAngle = 0.0;
for (int i = 0; i < numSaxMarkers; i++)
{
avgAngle += (atan2(currentFrame[i].z-initFrame[i].z,currentFrame[i].x-initFrame[i].x));
}
avgAngle /=numSaxMarkers;
targetDeltas.push_back(avgAngle);
std::cout<<frame<<"\t"<<avgAngle*180/M_PI<<std::endl;
}
//The initFrame markers should correspond to the initFrame of the mesh as that is what is used in the comparisons
initFrame.clear();
Point3D sax_centroid(0, 0, 0);
for (int seg = 0; seg < NUMBER_OF_SAX_NODES; seg++)
{
Cmiss_field_cache_set_node(cache, cmiss_nodes[saxNodes[seg]]);
Cmiss_field_evaluate_real(coordinates_rc_, cache, 3, coord);
Point3D start(coord);
initFrame.push_back(start);
sax_centroid += start;
}
sax_centroid = sax_centroid * (-1.0 / NUMBER_OF_SAX_NODES);
for (int seg = 0; seg < NUMBER_OF_SAX_NODES; seg++)
{
initFrame[seg] += sax_centroid;
}
}
else
{
std::cout << "--- No field module for heart region!!! (Short Axis Fitting)";
std::cout << "No field module " << std::endl;
throw -1;
}
Cmiss_region_destroy(&heart_region);
Cmiss_region_destroy(&root_region);
}