#include <processor.h>
Inheritance diagram for EMAN::TestImageSinewaveCircular:
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 | |
Processor * | NEW () |
Static Public Attributes | |
const string | NAME = "testimage.sinewave.circular" |
wavelength | float this value is the d in function |sin(x/d)| | |
axis | char (optional) specify a major axis for asymmetric features | |
c | distance (optional) float between focus and the center of an ellipse | |
phase | degree (optional) phase for sine wave, default is 0 |
Definition at line 6067 of file processor.h.
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Get the descrition of this specific processor. This function must be overwritten by a subclass.
Implements EMAN::Processor. Definition at line 6077 of file processor.h. 06078 { 06079 return "Replace a source image as a circular sine wave in specified wave length"; 06080 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 6072 of file processor.h. 06073 {
06074 return NAME;
06075 }
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Get processor parameter information in a dictionary. Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.
Reimplemented from EMAN::Processor. Definition at line 6087 of file processor.h. References EMAN::TypeDict::put(). 06088 { 06089 TypeDict d; 06090 d.put("wavelength", EMObject::FLOAT, "(required)this value is the d in function |sin(x/d)|, unit: pixel"); 06091 d.put("axis", EMObject::STRING, "specify a major axis for asymmetric features"); 06092 d.put("c", EMObject::FLOAT, "distance between focus and the center of an ellipse"); 06093 d.put("phase", EMObject::FLOAT, "(optional)phase for sine wave, default is 0"); 06094 return d; 06095 }
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Definition at line 6082 of file processor.h. 06083 { 06084 return new TestImageSinewaveCircular(); 06085 }
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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.
Implements EMAN::Processor. Definition at line 7321 of file processor.cpp. References EMAN::EMData::get_data(), InvalidValueException, nx, ny, phase(), EMAN::TestImageProcessor::preprocess(), sqrt(), and EMAN::EMData::update(). 07322 { 07323 preprocess(image); 07324 07325 float wavelength = params["wavelength"]; 07326 string axis = (const char*)params["axis"]; 07327 float c = params["c"]; 07328 float phase = params["phase"]; 07329 07330 float *dat = image->get_data(); 07331 float r; //this is the distance of pixel from the image center(nx/2, ny/2, nz/2) 07332 float x2, y2, z2; //this is the coordinates of this pixel from image center 07333 for (int k = 0; k < nz; ++k) { 07334 for (int j = 0; j < ny; ++j) { 07335 for (int i = 0; i < nx; ++i, ++dat) { 07336 x2 = (float)( i - nx/2 ); 07337 y2 = (float)( j - ny/2 ); 07338 z2 = (float)( k - nz/2 ); 07339 if(axis == ""){ 07340 r = (float)sqrt(x2*x2+y2*y2+z2*z2); 07341 } 07342 else if(axis == "x"){ 07343 float lc = -c; 07344 float rc = c; 07345 r = ( (float)sqrt((x2-lc)*(x2-lc)+y2*y2+z2*z2) + 07346 (float)sqrt((x2-rc)*(x2-rc)+y2*y2+z2*z2) ) /2.0f - c; 07347 } 07348 else if(axis == "y"){ 07349 float lc = -c; 07350 float rc = c; 07351 r = ( (float)sqrt(x2*x2+(y2-lc)*(y2-lc)+z2*z2) + 07352 (float)sqrt(x2*x2+(y2-rc)*(y2-rc)+z2*z2) ) /2.0f - c; 07353 } 07354 else if(axis == "z"){ 07355 if( nz == 1 ){ 07356 throw InvalidValueException(0, "This is a 2D image, no asymmetric feature for z axis"); 07357 } 07358 float lc = -c; 07359 float rc = c; 07360 r = ( (float)sqrt(x2*x2+y2*y2+(z2-lc)*(z2-lc)) + 07361 (float)sqrt(x2*x2+y2*y2+(z2-rc)*(z2-rc)) ) /2.0f - c; 07362 } 07363 else{ 07364 throw InvalidValueException(0, "please specify a valid axis for asymmetric features"); 07365 } 07366 *dat = sin( r * (2.0f*M_PI/wavelength) - phase*180/M_PI); 07367 } 07368 } 07369 } 07370 07371 image->update(); 07372 }
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Definition at line 197 of file processor.cpp. |