TriStats Class Reference

Inheritance diagram for TriStats:

Collaboration diagram for TriStats:

Public Member Functions
	TriStats (Interface *mbi_p, OrientedBoxTreeTool *tool_p, EntityHandle root)
virtual ErrorCode	visit (EntityHandle, int, bool &descend)
	Visit a node in the tree during a traversal. More...
virtual ErrorCode	leaf (EntityHandle node)
	Process a leaf node during tree traversal. More...
std::string	commafy (int num)
void	write_results (std::ostream &out)
Public Member Functions inherited from moab::OrientedBoxTreeTool::Op
virtual	~Op ()

Public Attributes
unsigned	min
unsigned	max
unsigned	sum
unsigned	leaves
double	sqr
unsigned	ten_buckets [ten_buckets_max]
double	ten_buckets_vol [ten_buckets_max]
Interface *	mbi
OrientedBoxTreeTool *	tool
double	tot_vol

Static Public Attributes
static const unsigned	ten_buckets_max = 5

Detailed Description

Definition at line 222 of file obb_analysis.cpp.

Constructor & Destructor Documentation

TriStats()

TriStats::TriStats ( Interface *  mbi_p, OrientedBoxTreeTool *  tool_p, EntityHandle  root  )

inline

Definition at line 238 of file obb_analysis.cpp.

 : OrientedBoxTreeTool::Op(), sum( 0 ), leaves( 0 ), sqr( 0 ), mbi( mbi_p ), tool( tool_p )
 {
 min = std::numeric_limits< unsigned >::max();
 max = std::numeric_limits< unsigned >::min();
 
 for( unsigned i = 0; i < ten_buckets_max; ++i )
 {
 ten_buckets[i] = 0;
 ten_buckets_vol[i] = 0.;
 }
 
 OrientedBox box;
 ErrorCode rval = tool->box( root, box );
 CHECKERR( mbi, rval );
 tot_vol = box.volume();
 }

References moab::OrientedBoxTreeTool::box(), CHECKERR, ErrorCode, and moab::OrientedBox::volume().

Member Function Documentation

commafy()

std::string TriStats::commafy ( int  num )

inline

Definition at line 292 of file obb_analysis.cpp.

 {
 std::stringstream str;
 str << num;
 std::string s = str.str();
 
 int n = s.size();
 for( int i = n - 3; i >= 1; i -= 3 )
 {
 s.insert( i, 1, ',' );
 n++;
 }
 
 return s;
 }

leaf()

virtual ErrorCode TriStats::leaf ( EntityHandle  node )

inlinevirtual

Process a leaf node during tree traversal.

Implements moab::OrientedBoxTreeTool::Op.

Definition at line 263 of file obb_analysis.cpp.

 {
 
 Range tris;
 ErrorCode rval = tool->get_moab_instance()->get_entities_by_type( node, MBTRI, tris );
 unsigned count = tris.size();
 
 sum += count;
 sqr += ( count * count );
 if( min > count ) min = count;
 if( max < count ) max = count;
 
 for( unsigned i = 0; i < ten_buckets_max; ++i )
 {
 if( count > std::pow( (double)10, (int)( i + 1 ) ) )
 {
 ten_buckets[i] += 1;
 OrientedBox box;
 rval = tool->box( node, box );
 CHECKERR( mbi, rval );
 ten_buckets_vol[i] += box.volume();
 }
 }
 
 leaves++;
 
 return rval;
 }

References moab::OrientedBoxTreeTool::box(), CHECKERR, ErrorCode, moab::Interface::get_entities_by_type(), moab::OrientedBoxTreeTool::get_moab_instance(), MBTRI, moab::Range::size(), moab::sum(), and moab::OrientedBox::volume().

visit()

virtual ErrorCode TriStats::visit ( EntityHandle  node, int  depth, bool &  descend  )

inlinevirtual

Visit a node in the tree during a traversal.

This method is called for each node in the tree visited during a pre-order traversal.

Parameters

node	The EntityHandle for the entity set for the tree node.
depth	The current depth in the tree.
descend	Output: if false, traversal will skip children of the current node, or if the current node is a leaf, the 'leaf' method will not be called.

Implements moab::OrientedBoxTreeTool::Op.

Definition at line 256 of file obb_analysis.cpp.

 {
 
 descend = true;
 return MB_SUCCESS;
 }

References MB_SUCCESS.

write_results()

void TriStats::write_results ( std::ostream &  out )

inline

Definition at line 308 of file obb_analysis.cpp.

 {
 
 out << commafy( sum ) << " triangles in " << commafy( leaves ) << " leaves." << std::endl;
 
 double avg = sum / (double)leaves;
 double stddev = std_dev( sqr, sum, leaves );
 
 out << "Tris per leaf: Min " << min << ", Max " << max << ", avg " << avg << ", stddev " << stddev << std::endl;
 
 for( unsigned i = 0; i < ten_buckets_max; ++i )
 {
 if( ten_buckets[i] )
 {
 out << "Leaves exceeding " << std::pow( (double)10, (int)( i + 1 ) )
 << " triangles: " << ten_buckets[i];
 
 double frac_total_vol = ten_buckets_vol[i] / tot_vol;
 double avg_ftv = frac_total_vol / ten_buckets[i];
 
 out << " (avg " << avg_ftv * 100.0 << "% of OBB volume)" << std::endl;
 }
 }
 }

References moab::std_dev(), and moab::sum().

Referenced by obbstat_write().

Member Data Documentation

leaves

unsigned TriStats::leaves

Definition at line 226 of file obb_analysis.cpp.

max

unsigned TriStats::max

Definition at line 226 of file obb_analysis.cpp.

mbi

Interface* TriStats::mbi

Definition at line 233 of file obb_analysis.cpp.

min

unsigned TriStats::min

Definition at line 226 of file obb_analysis.cpp.

sqr

double TriStats::sqr

Definition at line 227 of file obb_analysis.cpp.

sum

unsigned TriStats::sum

Definition at line 226 of file obb_analysis.cpp.

ten_buckets

unsigned TriStats::ten_buckets[ten_buckets_max]

Definition at line 230 of file obb_analysis.cpp.

ten_buckets_max

const unsigned TriStats::ten_buckets_max = 5

static

Definition at line 229 of file obb_analysis.cpp.

ten_buckets_vol

double TriStats::ten_buckets_vol[ten_buckets_max]

Definition at line 231 of file obb_analysis.cpp.

tool

OrientedBoxTreeTool* TriStats::tool

Definition at line 234 of file obb_analysis.cpp.

tot_vol

double TriStats::tot_vol

Definition at line 236 of file obb_analysis.cpp.

---

The documentation for this class was generated from the following file:

• obb_analysis.cpp