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EMAN::TestImageEllipse Class Reference

Generate an ellipse or ellipsoid image. More...

#include <processor.h>

Inheritance diagram for EMAN::TestImageEllipse:

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Collaboration diagram for EMAN::TestImageEllipse:

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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.ellipsoid"

Detailed Description

Generate an ellipse or ellipsoid image.

Parameters:
a equatorial radii along x axes
b equatorial radii along y axes
c polar radius
transform Optionally transform the ellipse
fill value you want to fill in ellipse, default to 1.0

Definition at line 6231 of file processor.h.


Member Function Documentation

virtual string EMAN::TestImageEllipse::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 6241 of file processor.h.

06242                 {
06243                         return "Insert an ellipse into the image.";
06244                 }

virtual string EMAN::TestImageEllipse::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 6236 of file processor.h.

06237                 {
06238                         return NAME;
06239                 }

virtual TypeDict EMAN::TestImageEllipse::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 6251 of file processor.h.

References EMAN::TypeDict::put().

06252                 {
06253                         TypeDict d;
06254                         d.put("a", EMObject::FLOAT, "equatorial radius along x axes (major semiaxes)");
06255                         d.put("b", EMObject::FLOAT, "equatorial radius along y axes (minor semiaxes)");
06256                         d.put("c", EMObject::FLOAT, "polar radius for ellipsoid (x^2/a^2+y^2/b^2+z^2/c^2=1)");
06257                         d.put("transform", EMObject::TRANSFORM, "Optionally transform the ellipse");
06258                         d.put("fill", EMObject::FLOAT, "value you want to fill in ellipse, default to 1.0");
06259                         return d;
06260                 }

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

Definition at line 6246 of file processor.h.

06247                 {
06248                         return new TestImageEllipse();
06249                 }

void TestImageEllipse::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 7660 of file processor.cpp.

References b, bi, EMAN::Dict::has_key(), nx, ny, EMAN::TestImageProcessor::preprocess(), EMAN::Dict::set_default(), EMAN::EMData::set_value_at(), t, EMAN::EMData::update(), v, and EMAN::Vec3f.

07661 {
07662         preprocess(image);
07663 
07664 
07665         float a = params.set_default("a",nx/2.0f-1.0f);
07666         float b = params.set_default("b",ny/2.0f-1.0f);
07667         float c = params.set_default("c",nz/2.0f-1.0f);
07668         float fill = params.set_default("fill",1.0f);
07669         //bool hollow = params.set_default("hollow",false);
07670         Transform* t;
07671         if (params.has_key("transform")) {
07672                 t = params["transform"];
07673         } else {
07674                 t = new Transform;
07675         }
07676 
07677 
07678         int mz = 2*(int)c+1;
07679         if ( nz < mz ) mz = nz;
07680         int my = 2*(int)b+1;
07681         if ( ny < my ) my = ny;
07682         int mx = 2*(int)a+1;
07683         if ( nx < mx ) mx = nx;
07684 
07685 
07686         float ai = 1/(a*a);
07687         float bi = 1/(b*b);
07688         float ci = 1/(c*c);
07689 
07690         Vec3f origin(nx/2,ny/2,nz/2);
07691 
07692         float x2, y2, z2, r;
07693         int xl, yl, zl;
07694         for (int k = 0; k < mz; ++k) {
07695                 for (int j = 0; j < my; ++j) {
07696                         for (int i = 0; i < mx; ++i) {
07697                                 x2 = (float)(i - mx/2);
07698                                 y2 = (float)(j - my/2);
07699                                 z2 = (float)(k - mz/2);
07700                                 r = (x2*x2)*ai + (y2*y2)*bi + (z2*z2)*ci;
07701                                 if (r <= 1) {
07702 
07703                                         if (t != 0) {
07704                                                 Vec3f v(x2,y2,z2);
07705                                                 v = (*t)*v;
07706                                                 v += origin;
07707 
07708                                                 // THIS ISN'T THE BEST STRATEGY BUT IT'S A STOP GAP. A FLOOD FILL IS PROBABLY BETTER
07709                                                 // I fill in 3x3 cubes to make sure there are no gaps...
07710 
07711                                                 for( int kk = -1; kk <= 1; ++kk)
07712                                                         for( int jj = -1; jj <= 1; ++jj)
07713                                                                 for( int ii = -1; ii <= 1; ++ii) {
07714                                                                         xl = (int)v[0]+ii;
07715                                                                         yl = (int)v[1]+jj;
07716                                                                         zl = (int)v[2]+kk;
07717                                                                         if (xl >= 0 && xl < nx && yl >= 0 && yl < ny && zl >= 0 && zl < nz)
07718                                                                                 image->set_value_at(xl,yl,zl,fill);
07719                                                                 }
07720                                         } else {
07721                                                 image->set_value_at((int)x2+nx/2,(int)y2+ny/2,(int)z2+nz/2,fill);
07722                                         }
07723                                 }
07724                         }
07725                 }
07726         }
07727 
07728         delete t;
07729 
07730         image->update();
07731 }


Member Data Documentation

const string TestImageEllipse::NAME = "testimage.ellipsoid" [static]
 

Definition at line 202 of file processor.cpp.


The documentation for this class was generated from the following files:
Generated on Mon Mar 7 18:21:22 2011 for EMAN2 by  doxygen 1.3.9.1