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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

static ProcessorNEW ()

Static Public Attributes

static 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 6522 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 6532 of file processor.h.

06533                 {
06534                         return "Replace a source image as a cylinder";
06535                 }

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 6527 of file processor.h.

References NAME.

06528                 {
06529                         return NAME;
06530                 }

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 6542 of file processor.h.

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

06543                 {
06544                         TypeDict d;
06545                         d.put("radius", EMObject::FLOAT, "radius for the cylinder");
06546                         d.put("height", EMObject::FLOAT, "height for the cylinder, by default it's the nz");
06547 
06548                         return d;
06549                 }

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

Definition at line 6537 of file processor.h.

06538                 {
06539                         return new TestImageCylinder();
06540                 }

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 7701 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, EMAN::Processor::params, EMAN::TestImageProcessor::preprocess(), and EMAN::EMData::update().

07702 {
07703         preprocess(image);
07704 
07705         int nx = image->get_xsize();
07706         int ny = image->get_ysize();
07707         int nz = image->get_zsize();
07708 
07709         if(nz == 1) {
07710                 throw ImageDimensionException("This processor only apply to 3D image");
07711         }
07712 
07713         float radius = params["radius"];
07714 #ifdef _WIN32
07715         if(radius > _cpp_min(nx, ny)/2.0) {
07716 #else
07717         if(radius > std::min(nx, ny)/2.0) {
07718 #endif
07719                 throw InvalidValueException(radius, "radius must be <= min(nx, ny)/2");
07720         }
07721 
07722         float height;
07723         if(params.has_key("height")) {
07724                 height = params["height"];
07725                 if(height > nz) {
07726                         throw InvalidValueException(radius, "height must be <= nz");
07727                 }
07728         }
07729         else {
07730                 height = static_cast<float>(nz);
07731         }
07732 
07733         float *dat = image->get_data();
07734         float x2, y2; //this is coordinates of this pixel from center axle
07735         float r = 0.0f;
07736         for (int k = 0; k < nz; ++k) {
07737                 for (int j = 0; j < ny; ++j) {
07738                         for (int i = 0; i < nx; ++i, ++dat) {
07739                                 x2 = fabs((float)i - nx/2);
07740                                 y2 = fabs((float)j - ny/2);
07741                                 r = (x2*x2)/(radius*radius) + (y2*y2)/(radius*radius);
07742 
07743                                 if(r<=1 && k>=(nz-height)/2 && k<=(nz+height)/2) {
07744                                         *dat = 1;
07745                                 }
07746                                 else {
07747                                         *dat = 0;
07748                                 }
07749                         }
07750                 }
07751         }
07752 
07753         image->update();
07754 }


Member Data Documentation

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

Definition at line 6551 of file processor.h.

Referenced by get_name().


The documentation for this class was generated from the following files:
Generated on Tue May 25 17:37:53 2010 for EMAN2 by  doxygen 1.4.4