Main Page | Modules | Namespace List | Class Hierarchy | Alphabetical List | Class List | Directories | File List | Namespace Members | Class Members | File Members

EMAN::MirrorProcessor Class Reference

mirror an image More...

#include <processor_sparx.h>

Inheritance diagram for EMAN::MirrorProcessor:

Inheritance graph
[legend]
Collaboration diagram for EMAN::MirrorProcessor:

Collaboration graph
[legend]
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

ProcessorNEW ()

Static Public Attributes

const string NAME = "xform.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 "Mirrors an image along the specified axis. This will shift the image center for even box sizes. Use the 'xform.flip' processor to preserve center.";
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.

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().

00065                 {
00066                         TypeDict d;
00067                         d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis");
00068                         return d;
00069                 }

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 8260 of file processor.cpp.

References data, EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), LOGWARN, nx, ny, and EMAN::EMData::update().

08261 {
08262         if (!image) {
08263                 LOGWARN("NULL Image");
08264                 return;
08265         }
08266 
08267         string axis = (const char*)params["axis"];
08268 
08269         float* data = image->EMData::get_data();
08270 
08271         int nx = image->get_xsize();
08272         int ny = image->get_ysize();
08273         int nz = image->get_zsize();
08274         size_t nxy = nx*ny;
08275 
08276         int x_start = 1-nx%2;
08277         int y_start = 1-ny%2;
08278         int z_start = 1-nz%2;
08279 
08280         if (axis == "x" || axis == "X") {
08281                 for (int iz = 0; iz < nz; iz++)
08282                         for (int iy = 0; iy < ny; iy++) {
08283                                 int offset = nx*iy + nxy*iz;
08284                                 reverse(&data[offset+x_start],&data[offset+nx]);
08285                         }
08286         } else if (axis == "y" || axis == "Y") {
08287                 float *tmp = new float[nx];
08288                 int nhalf   = ny/2;
08289                 size_t beg     = 0;
08290                 for (int iz = 0; iz < nz; iz++) {
08291                         beg = iz*nxy;
08292                         for (int iy = y_start; iy < nhalf; iy++) {
08293                                 memcpy(tmp, &data[beg+iy*nx], nx*sizeof(float));
08294                                 memcpy(&data[beg+iy*nx], &data[beg+(ny-iy-1+y_start)*nx], nx*sizeof(float));
08295                                 memcpy(&data[beg+(ny-iy-1+y_start)*nx], tmp, nx*sizeof(float));
08296                         }
08297                 }
08298                 delete[] tmp;
08299         } else if (axis == "z" || axis == "Z") {
08300                 if(1-z_start) {
08301                         int nhalf = nz/2;
08302                         float *tmp = new float[nxy];
08303                         for(int iz = 0;iz<nhalf;iz++){
08304                                 memcpy(tmp,&data[iz*nxy],nxy*sizeof(float));
08305                                 memcpy(&data[iz*nxy],&data[(nz-iz-1)*nxy],nxy*sizeof(float));
08306                                 memcpy(&data[(nz-iz-1)*nxy],tmp,nxy*sizeof(float));
08307                         }
08308                         delete[] tmp;
08309                 } else {
08310                         float *tmp = new float[nx];
08311                         int nhalf   = nz/2;
08312                         size_t beg     = 0;
08313                         for (int iy = 0; iy < ny; iy++) {
08314                                 beg = iy*nx;
08315                                 for (int iz = z_start; iz < nhalf; iz++) {
08316                                         memcpy(tmp, &data[beg+ iz*nxy], nx*sizeof(float));
08317                                         memcpy(&data[beg+iz*nxy], &data[beg+(nz-iz-1+z_start)*nxy], nx*sizeof(float));
08318                                         memcpy(&data[beg+(nz-iz-1+z_start)*nxy], tmp, nx*sizeof(float));
08319                                 }
08320                         }
08321                         delete[] tmp;
08322                 }
08323         }
08324 
08325         image->update();
08326 }


Member Data Documentation

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

Definition at line 220 of file processor.cpp.


The documentation for this class was generated from the following files:
Generated on Thu Nov 17 12:47:00 2011 for EMAN2 by  doxygen 1.3.9.1