EMAN::MirrorProcessor Class Reference

mirror an image More...

#include <processor_sparx.h>

Inheritance diagram for EMAN::MirrorProcessor:

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Collaboration diagram for EMAN::MirrorProcessor:

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List of all members.

Public Member Functions

void process_inplace (EMData *image)
 To process an image in-place.
string get_name () const
 Get the processor's name.
TypeDict get_param_types () const
 Get processor parameter information in a dictionary.
string get_desc () const
 Get the descrition of this specific processor.

Static Public Member Functions

static ProcessorNEW ()

Static Public Attributes

static const string NAME = "mirror"

Detailed Description

mirror an image

Parameters:
axis ''x', 'y', or 'z' axis, means mirror by changing the sign of the respective axis;

Definition at line 48 of file processor_sparx.h.


Member Function Documentation

string EMAN::MirrorProcessor::get_desc (  )  const [inline, virtual]

Get the descrition of this specific processor.

This function must be overwritten by a subclass.

Returns:
The description of this processor.

Implements EMAN::Processor.

Definition at line 71 of file processor_sparx.h.

00072                 {
00073                         return "mirror an image.";
00074                 }

string EMAN::MirrorProcessor::get_name (  )  const [inline, virtual]

Get the processor's name.

Each processor is identified by a unique name.

Returns:
The processor's name.

Implements EMAN::Processor.

Definition at line 54 of file processor_sparx.h.

References NAME.

00055                 {
00056                         return NAME;
00057                 }

TypeDict EMAN::MirrorProcessor::get_param_types (  )  const [inline, virtual]

Get processor parameter information in a dictionary.

Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.

Returns:
A dictionary containing the parameter info.

Reimplemented from EMAN::Processor.

Definition at line 64 of file processor_sparx.h.

References EMAN::TypeDict::put(), and EMAN::EMObject::STRING.

00065                 {
00066                         TypeDict d;
00067                         d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis, means mirror by changing the sign of the respective axis;");
00068                         return d;
00069                 }

static Processor* EMAN::MirrorProcessor::NEW (  )  [inline, static]

Definition at line 59 of file processor_sparx.h.

00060                 {
00061                         return new MirrorProcessor();
00062                 }

void MirrorProcessor::process_inplace ( EMData image  )  [virtual]

To process an image in-place.

For those processors which can only be processed out-of-place, override this function to just print out some error message to remind user call the out-of-place version.

Parameters:
image The image to be processed.

Implements EMAN::Processor.

Definition at line 8144 of file processor.cpp.

References EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), LOGWARN, EMAN::Processor::params, and EMAN::EMData::update().

08145 {
08146         if (!image) {
08147                 LOGWARN("NULL Image");
08148                 return;
08149         }
08150 
08151         string axis = (const char*)params["axis"];
08152 
08153         float* data = image->EMData::get_data();
08154 
08155         int nx = image->get_xsize();
08156         int ny = image->get_ysize();
08157         int nz = image->get_zsize();
08158         size_t nxy = nx*ny;
08159 
08160         int x_start = 1-nx%2;
08161         int y_start = 1-ny%2;
08162         int z_start = 1-nz%2;
08163 
08164         if (axis == "x" || axis == "X") {
08165                 for (int iz = 0; iz < nz; iz++)
08166                         for (int iy = 0; iy < ny; iy++) {
08167                                 int offset = nx*iy + nxy*iz;
08168                                  reverse(&data[offset+x_start],&data[offset+nx]);
08169                          }
08170          }
08171 
08172          if (axis == "y" || axis == "Y") {
08173                 float *tmp = new float[nx];
08174                  int nhalf   = ny/2;
08175                  size_t beg     = 0;
08176                  for (int iz = 0; iz < nz; iz++) {
08177                       beg = iz*nxy;
08178                       for (int iy = y_start; iy < nhalf; iy++) {
08179                                 memcpy(tmp, &data[beg+iy*nx], nx*sizeof(float));
08180                                 memcpy(&data[beg+iy*nx], &data[beg+(ny-iy-1+y_start)*nx], nx*sizeof(float));
08181                                 memcpy(&data[beg+(ny-iy-1+y_start)*nx], tmp, nx*sizeof(float));
08182                         }
08183                 }
08184                 delete[] tmp;
08185         }
08186 
08187          if (axis == "z" || axis == "Z") {
08188                 if(1-z_start){
08189                         int nhalf = nz/2;
08190                         float *tmp = new float[nxy];
08191                         for(int iz = 0;iz<nhalf;iz++){
08192                                 memcpy(tmp,&data[iz*nxy],nxy*sizeof(float));
08193                                 memcpy(&data[iz*nxy],&data[(nz-iz-1)*nxy],nxy*sizeof(float));
08194                                 memcpy(&data[(nz-iz-1)*nxy],tmp,nxy*sizeof(float));
08195                                 }
08196                         delete[] tmp;
08197                 }
08198                 else{
08199                         float *tmp = new float[nx];
08200                         int nhalf   = nz/2;
08201                         size_t beg     = 0;
08202                         for (int iy = 0; iy < ny; iy++) {
08203                                 beg = iy*nx;
08204                                 for (int iz = z_start; iz < nhalf; iz++) {
08205                                         memcpy(tmp, &data[beg+ iz*nxy], nx*sizeof(float));
08206                                         memcpy(&data[beg+iz*nxy], &data[beg+(nz-iz-1+z_start)*nxy], nx*sizeof(float));
08207                                         memcpy(&data[beg+(nz-iz-1+z_start)*nxy], tmp, nx*sizeof(float));
08208                                 }
08209                         }
08210                         delete[] tmp;
08211                 }
08212          }
08213 
08214          image->update();
08215 }


Member Data Documentation

const string MirrorProcessor::NAME = "mirror" [static]

Definition at line 76 of file processor_sparx.h.

Referenced by get_name().


The documentation for this class was generated from the following files:
Generated on Mon Mar 7 18:11:14 2011 for EMAN2 by  doxygen 1.4.7