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 = "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.

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");
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 8332 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().

08333 {
08334         if (!image) {
08335                 LOGWARN("NULL Image");
08336                 return;
08337         }
08338 
08339         string axis = (const char*)params["axis"];
08340 
08341         float* data = image->EMData::get_data();
08342 
08343         int nx = image->get_xsize();
08344         int ny = image->get_ysize();
08345         int nz = image->get_zsize();
08346         size_t nxy = nx*ny;
08347 
08348         int x_start = 1-nx%2;
08349         int y_start = 1-ny%2;
08350         int z_start = 1-nz%2;
08351 
08352         if (axis == "x" || axis == "X") {
08353                 for (int iz = 0; iz < nz; iz++)
08354                         for (int iy = 0; iy < ny; iy++) {
08355                                 int offset = nx*iy + nxy*iz;
08356                                 reverse(&data[offset+x_start],&data[offset+nx]);
08357                         }
08358         } else if (axis == "y" || axis == "Y") {
08359                 float *tmp = new float[nx];
08360                 int nhalf   = ny/2;
08361                 size_t beg     = 0;
08362                 for (int iz = 0; iz < nz; iz++) {
08363                         beg = iz*nxy;
08364                         for (int iy = y_start; iy < nhalf; iy++) {
08365                                 memcpy(tmp, &data[beg+iy*nx], nx*sizeof(float));
08366                                 memcpy(&data[beg+iy*nx], &data[beg+(ny-iy-1+y_start)*nx], nx*sizeof(float));
08367                                 memcpy(&data[beg+(ny-iy-1+y_start)*nx], tmp, nx*sizeof(float));
08368                         }
08369                 }
08370                 delete[] tmp;
08371         } else if (axis == "z" || axis == "Z") {
08372                 if(1-z_start) {
08373                         int nhalf = nz/2;
08374                         float *tmp = new float[nxy];
08375                         for(int iz = 0;iz<nhalf;iz++){
08376                                 memcpy(tmp,&data[iz*nxy],nxy*sizeof(float));
08377                                 memcpy(&data[iz*nxy],&data[(nz-iz-1)*nxy],nxy*sizeof(float));
08378                                 memcpy(&data[(nz-iz-1)*nxy],tmp,nxy*sizeof(float));
08379                         }
08380                         delete[] tmp;
08381                 } else {
08382                         float *tmp = new float[nx];
08383                         int nhalf   = nz/2;
08384                         size_t beg     = 0;
08385                         for (int iy = 0; iy < ny; iy++) {
08386                                 beg = iy*nx;
08387                                 for (int iz = z_start; iz < nhalf; iz++) {
08388                                         memcpy(tmp, &data[beg+ iz*nxy], nx*sizeof(float));
08389                                         memcpy(&data[beg+iz*nxy], &data[beg+(nz-iz-1+z_start)*nxy], nx*sizeof(float));
08390                                         memcpy(&data[beg+(nz-iz-1+z_start)*nxy], tmp, nx*sizeof(float));
08391                                 }
08392                         }
08393                         delete[] tmp;
08394                 }
08395         }
08396 
08397         image->update();
08398 }


Member Data Documentation

const string MirrorProcessor::NAME = "xform.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:
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