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EMAN::TestImageGradient Class Reference

Put a gradient in the image of the form y = mx+b : "x" is a string indicating any of the image axes, i.e., x,y or z. More...

#include <processor.h>

Inheritance diagram for EMAN::TestImageGradient:

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Collaboration diagram for EMAN::TestImageGradient:

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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.gradient"

Detailed Description

Put a gradient in the image of the form y = mx+b : "x" is a string indicating any of the image axes, i.e., x,y or z.

Author:
David Woolford <woolford@bcm.edu>
Date:
01/10/2008
Parameters:
axis The axis the will be used to determine pixel values. Must be x,y or z. Default is x
m m in the equation m*axis+b. Default is 1.0
b b in the equation m*axis+b. Default is 0.0

Definition at line 6129 of file processor.h.


Member Function Documentation

virtual string EMAN::TestImageGradient::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 6139 of file processor.h.

06140                         {
06141                                 return "Make a gradient image of the form y=mx+b, where x is any of the image axes.";
06142                         }

virtual string EMAN::TestImageGradient::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 6134 of file processor.h.

06135                         {
06136                                 return NAME;
06137                         }

virtual TypeDict EMAN::TestImageGradient::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 6149 of file processor.h.

References EMAN::TypeDict::put().

06150                         {
06151                                 TypeDict d;
06152                                 d.put("axis", EMObject::STRING, "The axis the will be used to determine pixel values. Must be x,y or z");
06153                                 d.put("m", EMObject::FLOAT, "m in the equation m*axis+b. Default is 1.0");
06154                                 d.put("b", EMObject::FLOAT, "b in the equation m*axis+b. Default is 0.0");
06155                                 return d;
06156                         }

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

Definition at line 6144 of file processor.h.

06145                         {
06146                                 return new TestImageGradient();
06147                         }

void TestImageGradient::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 7314 of file processor.cpp.

References b, InvalidParameterException, EMAN::TestImageProcessor::preprocess(), EMAN::Dict::set_default(), EMAN::EMData::set_value_at(), and EMAN::EMData::update().

07315 {
07316         string axis = params.set_default("axis", "x");
07317 
07318         float m = params.set_default("m", 1.0f);
07319         float b = params.set_default("b", 0.0f);
07320 
07321         if ( axis != "z" && axis != "y" && axis != "x") throw InvalidParameterException("Axis must be x,y or z");
07322 
07323         preprocess(image);
07324 
07325         if ( axis == "x")
07326         {
07327                 for(int k=0; k<nz;++k) {
07328                         for(int j=0; j<ny; ++j) {
07329                                 for(int i=0; i <nx; ++i) {
07330                                         image->set_value_at(i,j,k,m*i+b);
07331                                 }
07332                         }
07333                 }
07334         }
07335         else if ( axis == "y")
07336         {
07337                 for(int k=0; k<nz;++k) {
07338                         for(int j=0; j<ny; ++j) {
07339                                 for(int i=0; i <nx; ++i) {
07340                                         image->set_value_at(i,j,k,m*j+b);
07341                                 }
07342                         }
07343                 }
07344         }
07345         else if ( axis == "z")
07346         {
07347                 for(int k=0; k<nz;++k) {
07348                         for(int j=0; j<ny; ++j) {
07349                                 for(int i=0; i <nx; ++i) {
07350                                         image->set_value_at(i,j,k,m*k+b);
07351                                 }
07352                         }
07353                 }
07354         }
07355         image->update();
07356 }


Member Data Documentation

const string TestImageGradient::NAME = "testimage.gradient" [static]
 

Definition at line 197 of file processor.cpp.


The documentation for this class was generated from the following files:
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