FourierPixelInserter3DMode3 - encapsulates "method 3" for inserting a 2D Fourier slice into a 3D volume See comments in FourierPixelInserter3D for explanations.
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#include <reconstructor_tools.h>
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static const string | NAME = "gauss_3" |
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FourierPixelInserter3DMode3 - encapsulates "method 3" for inserting a 2D Fourier slice into a 3D volume See comments in FourierPixelInserter3D for explanations.
Definition at line 260 of file reconstructor_tools.h.
◆ FourierInserter3DMode3() [1/2]
EMAN::FourierInserter3DMode3::FourierInserter3DMode3 |
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◆ ~FourierInserter3DMode3()
virtual EMAN::FourierInserter3DMode3::~FourierInserter3DMode3 |
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◆ FourierInserter3DMode3() [2/2]
◆ get_desc()
virtual string EMAN::FourierInserter3DMode3::get_desc |
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const |
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Get a clear, concise description of this class.
- Returns
- a clear, concise description of this class
Implements EMAN::FactoryBase.
Definition at line 278 of file reconstructor_tools.h.
280 return "Fourier pixel insertion using a 3x3x3 Gaussian kernel";
◆ get_name()
virtual string EMAN::FourierInserter3DMode3::get_name |
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const |
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◆ insert_pixel()
bool FourierInserter3DMode3::insert_pixel |
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const float & |
xx, |
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const float & |
yy, |
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const float & |
zz, |
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const std::complex< float > |
dt, |
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const float & |
weight = 1.0 |
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Insert a complex pixel [dt[0]+dt[1]i] at (float) coordinate [xx,yy,zz] with weighting into a discrete 3D volume.
- Parameters
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xx | the floating point x coordinate |
yy | the floating point y coordinate |
zz | the floating point z coordinate |
dt | the complex pixel value (dt[0] is real, dt[1] is imaginary) |
weight | the weight to given to this complex pixel |
- Returns
- A boolean that indicates the pixel has been inserted (or not)
Implements EMAN::FourierPixelInserter3D.
Definition at line 265 of file reconstructor_tools.cpp.
267 int x0 = (int) floor(xx-.5);
268 int y0 = (int) floor(yy-.5);
269 int z0 = (int) floor(zz-.5);
272 if (x0<-
nx2-2 || y0<-
ny2-2 || z0<-nz2-2 || x0>
nx2+1 || y0>
ny2+1 || z0>
nz2+1 )
return false;
293 for (
int k = z0 ; k <= z1; k++) {
294 for (
int j = y0 ; j <= y1; j++) {
295 for (
int i = x0; i <= x1; i ++) {
303 off=
data->add_complex_at_fast(i,j,k,dt*gg);
310 printf(
"region writing not supported in mode 3\n");
EMData * data
A pointer to the constructor argument real_data.
float * norm
A pointer to the constructor argument normalize_values.
static int hypot3sq(int x, int y, int z)
Euclidean distance function squared in 3D: f(x,y,z) = (x*x + y*y + z*z);.
static float hypot3(int x, int y, int z)
Euclidean distance function in 3D: f(x,y,z) = sqrt(x*x + y*y + z*z);.
static float fast_exp(const float &f)
Returns an approximate of exp(x) using a cached table uses actual exp(x) outside the cached range.
References EMAN::FourierPixelInserter3D::data, EMAN::Util::fast_exp(), EMAN::Util::hypot3(), EMAN::Util::hypot3sq(), EMAN::EMConsts::I3G, EMAN::FourierPixelInserter3D::norm, EMAN::FourierPixelInserter3D::nx2, EMAN::FourierPixelInserter3D::ny2, EMAN::FourierPixelInserter3D::nz2, and EMAN::FourierPixelInserter3D::subx0.
◆ NEW()
◆ operator=()
◆ NAME
const string FourierInserter3DMode3::NAME = "gauss_3" |
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static |
The documentation for this class was generated from the following files: