cass::GeometryInfo Namespace Reference

Classes
struct	lookupTable_t
	combine info needed for the lookuptable More...
struct	pos_t
	combine the position in the lab into a struct More...

Typedefs
typedef std::vector< pos_t >	conversion_t
	define the conversion table type More...

Functions
pos_t	minus (const pos_t &minuent, const pos_t &subtrahend)
	functor to substract one position from the other More...
size_t	linearizeComponents (const pos_t &pos, const size_t nCols)
	convert index with 2 components into a linearized index More...
conversion_t	generateConversionMap (const std::string &filename, const size_t sizeOfSrc, const size_t nSrcCols, const bool convertFromCheetahToCASS)
	parse the geom file and generate a lookup table More...
lookupTable_t	generateLookupTable (const std::string &filename, const size_t sizeOfSrc, const size_t nSrcCols, const bool convertFromCheetahToCASS)
	generate a lookup table for a new image More...

Typedef Documentation

typedef std::vector<pos_t> cass::GeometryInfo::conversion_t

define the conversion table type

Definition at line 29 of file geom_parser.h.

Function Documentation

GeometryInfo::conversion_t cass::GeometryInfo::generateConversionMap	(	const std::string &	filename,
		const size_t	sizeOfSrc,
		const size_t	nSrcCols,
		const bool	convertFromCheetahToCASS
	)

parse the geom file and generate a lookup table

in the lookup table each entry corresponsed to the coordinates in the lab

Returns

list of index to pos in lab

Parameters

filename	The filename of the geomfile
sizeOfSrc	the size of the source image
nSrcCols	the number of columns (fast changing index) in the image
convertFromCheetahToCASS	flag to tell whether the geom file uses layout in Cheetah but CASS uses CASS raw image coordinates

Author

Lutz Foucar

open file

Exceptions

invalid_argument

when it could not be opened

read the file line by line

if there is no '/' in line skip line

get asic string, value name and value (as string) from line

eliminate whitespace from value name

depending on the value name retrieve the value as right type

if value is fs then parse the string containing the 2 numbers

go through all defined asics

if requested transform the start and end positions from the cheetah layout to the raw cass layout

go through all pixels of this asics module

find the position in the lab frame (in pixel units) of the current position (colInAsic,rowInAsic) in the asic

determine where the current position in the asic is in the src image

find position in the linearized array

check if whats been given in the geomfile goes together with the src

remember what x,y position in the lab does this position in the asic correspond to

Definition at line 60 of file geom_parser.cpp.

References asicInfo_t::corner_x, asicInfo_t::corner_y, asicInfo_t::max_fs, asicInfo_t::max_ss, asicInfo_t::min_fs, asicInfo_t::min_ss, cass::toString(), asicInfo_t::x_fs, asicInfo_t::x_ss, asicInfo_t::y_fs, and asicInfo_t::y_ss.

Referenced by generateLookupTable(), cass::pp208::loadSettings(), and cass::pp90::loadSettings().

GeometryInfo::lookupTable_t cass::GeometryInfo::generateLookupTable	(	const std::string &	filename,
		const size_t	sizeOfSrc,
		const size_t	nSrcCols,
		const bool	convertFromCheetahToCASS
	)

generate a lookup table for a new image

generate a lookup table that has the corresponding index in an image that looks like an lab image

Returns

the index lookup table

Parameters

filename	The filename of the geomfile
sizeOfSrc	the size of the source image
nSrcCols	the number of columns (fast changing index) in the image
convertFromCheetahToCASS	flag to tell whether the geom file uses layout in Cheetah but CASS uses CASS raw image coordinates

Author

Lutz Foucar

get the minimum and maximum position in lab x and y

move all values, such that they start at 0

get the new maximum value of the shifted lab, which corresponds to the number of pixels that are required in the dest image, since all lab values are in pixel coordinates.

determine the dimensions of the destination image

convert the positions in the lab space (pixel units) to linearized indizes in the destination image

check if the boundaries are ok,

Exceptions

out	of range if not.

Definition at line 238 of file geom_parser.cpp.

References generateConversionMap(), linearizeComponents(), cass::GeometryInfo::lookupTable_t::lut, cass::GeometryInfo::lookupTable_t::max, cass::max_element(), cass::GeometryInfo::lookupTable_t::min, cass::min_element(), minus(), cass::GeometryInfo::lookupTable_t::nCols, cass::GeometryInfo::lookupTable_t::nRows, cass::toString(), cass::GeometryInfo::pos_t::x, cass::ACQIRIS::x, cass::GeometryInfo::pos_t::y, and cass::ACQIRIS::y.

Referenced by jocassview::TwoDViewer::dataChanged(), and cass::pp1602::setup().

size_t cass::GeometryInfo::linearizeComponents	(	const pos_t &	pos,
		const size_t	nCols
	)

convert index with 2 components into a linearized index

Returns

linearized index

Parameters

pos	the index in the frame with 2 components
nCols	the number of columns (fast changing index) in the frame

Author

Lutz Foucar

Definition at line 53 of file geom_parser.cpp.

References cass::GeometryInfo::pos_t::x, and cass::GeometryInfo::pos_t::y.

Referenced by generateLookupTable().

GeometryInfo::pos_t cass::GeometryInfo::minus	(	const pos_t &	minuent,
		const pos_t &	subtrahend
	)

functor to substract one position from the other

Returns

the result of the subtraction

Parameters

minuent	the minuent of the subtraction
subtrahend	the subtrahend of the subtraction

Author

Lutz Foucar

Definition at line 45 of file geom_parser.cpp.

References cass::GeometryInfo::pos_t::x, and cass::GeometryInfo::pos_t::y.

Referenced by generateLookupTable().