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EMAN::TestImageCylinder Class Reference

Replace a source image with a cylinder. More...

#include <processor.h>

Inheritance diagram for EMAN::TestImageCylinder:

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Collaboration diagram for EMAN::TestImageCylinder:

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List of all members.

Public Member Functions

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

Static Public Member Functions

ProcessorNEW ()

Static Public Attributes

const string NAME = "testimage.cylinder"

Detailed Description

Replace a source image with a cylinder.

Parameters:
radius radius for the cylinder
height height for the cylinder, by default it's the nz

Definition at line 6528 of file processor.h.


Member Function Documentation

virtual string EMAN::TestImageCylinder::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 6538 of file processor.h.

06539                 {
06540                         return "Replace a source image as a cylinder";
06541                 }

virtual string EMAN::TestImageCylinder::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 6533 of file processor.h.

06534                 {
06535                         return NAME;
06536                 }

virtual TypeDict EMAN::TestImageCylinder::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 6548 of file processor.h.

References EMAN::TypeDict::put().

06549                 {
06550                         TypeDict d;
06551                         d.put("radius", EMObject::FLOAT, "radius for the cylinder");
06552                         d.put("height", EMObject::FLOAT, "height for the cylinder, by default it's the nz");
06553 
06554                         return d;
06555                 }

Processor* EMAN::TestImageCylinder::NEW  )  [inline, static]
 

Definition at line 6543 of file processor.h.

06544                 {
06545                         return new TestImageCylinder();
06546                 }

void TestImageCylinder::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 7803 of file processor.cpp.

References EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), EMAN::Dict::has_key(), ImageDimensionException, InvalidValueException, min, nx, ny, EMAN::TestImageProcessor::preprocess(), and EMAN::EMData::update().

07804 {
07805         preprocess(image);
07806 
07807         int nx = image->get_xsize();
07808         int ny = image->get_ysize();
07809         int nz = image->get_zsize();
07810 
07811         if(nz == 1) {
07812                 throw ImageDimensionException("This processor only apply to 3D image");
07813         }
07814 
07815         float radius = params["radius"];
07816 #ifdef _WIN32
07817         if(radius > _cpp_min(nx, ny)/2.0) {
07818 #else
07819         if(radius > std::min(nx, ny)/2.0) {
07820 #endif
07821                 throw InvalidValueException(radius, "radius must be <= min(nx, ny)/2");
07822         }
07823 
07824         float height;
07825         if(params.has_key("height")) {
07826                 height = params["height"];
07827                 if(height > nz) {
07828                         throw InvalidValueException(radius, "height must be <= nz");
07829                 }
07830         }
07831         else {
07832                 height = static_cast<float>(nz);
07833         }
07834 
07835         float *dat = image->get_data();
07836         float x2, y2; //this is coordinates of this pixel from center axle
07837         float r = 0.0f;
07838         for (int k = 0; k < nz; ++k) {
07839                 for (int j = 0; j < ny; ++j) {
07840                         for (int i = 0; i < nx; ++i, ++dat) {
07841                                 x2 = fabs((float)i - nx/2);
07842                                 y2 = fabs((float)j - ny/2);
07843                                 r = (x2*x2)/(radius*radius) + (y2*y2)/(radius*radius);
07844 
07845                                 if(r<=1 && k>=(nz-height)/2 && k<=(nz+height)/2) {
07846                                         *dat = 1;
07847                                 }
07848                                 else {
07849                                         *dat = 0;
07850                                 }
07851                         }
07852                 }
07853         }
07854 
07855         image->update();
07856 }


Member Data Documentation

const string TestImageCylinder::NAME = "testimage.cylinder" [static]
 

Definition at line 214 of file processor.cpp.


The documentation for this class was generated from the following files:
Generated on Tue Jul 12 13:51:33 2011 for EMAN2 by  doxygen 1.3.9.1