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gencoil(1) [debian man page]

GENCOIL(1)							   User Commands							GENCOIL(1)

gencoil - Generates a virtual coil suitable for sequence simulation in ODIN DESCRIPTION
gencoil: Generates a virtual coil suitable for sequence simulation in ODIN Usage and options: Generate a radially inhomogenous coil: gencoil -rad -n <inplane-size> -fov <FOV> -R <radial-inhomogeneity[%]> -o <Coil-file> Generate an array coil by rotating pre-existing image file: gencoil -rot -n <inplane-size> -fov <FOV> -nc <numof-rotated-subcoils> -i <input-image> -sl <selected-slice> -o <Coil-file> Generate an array coil consisting of simple loops: gencoil -arr -n <inplane-size> -nc <numof-rotated-loops> -fov <FOV> -R <array-radius> -o <Coil-file> Generate coil with a B1 gradient: gencoil -grad -n <inplane-size> -fov <FOV> -g <B1-gradient-endpoint> -o <Coil-file> Other options: -v <loglevel> or <component:loglevel> for debugging/tracing all components or a single component, respectively. Possible values for loglevel are: 0(noLog), 1(errorLog), 2(warningLog), 3(infoLog). -h, --help, -help, --version : Print help text or version information gencoil 1.8.5 March 2012 GENCOIL(1)

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get_camera_matrix(3alleg4)					  Allegro manual					get_camera_matrix(3alleg4)

get_camera_matrix - Constructs a camera matrix for perspective projection. Allegro game programming library. SYNOPSIS
#include <allegro.h> void get_camera_matrix(MATRIX *m, fixed x, y, z, xfront, yfront, zfront, fixed xup, yup, zup, fov, aspect); DESCRIPTION
Constructs a camera matrix for translating world-space objects into a normalised view space, ready for the perspective projection. The x, y, and z parameters specify the camera position, xfront, yfront, and zfront are the 'in front' vector specifying which way the camera is facing (this can be any length: normalisation is not required), and xup, yup, and zup are the 'up' direction vector. The fov parameter specifies the field of view (ie. width of the camera focus) in binary, 256 degrees to the circle format. For typical pro- jections, a field of view in the region 32-48 will work well. 64 (90(de) applies no extra scaling - so something which is one unit away from the viewer will be directly scaled to the viewport. A bigger FOV moves you closer to the viewing plane, so more objects will appear. A smaller FOV moves you away from the viewing plane, which means you see a smaller part of the world. Finally, the aspect ratio is used to scale the Y dimensions of the image relative to the X axis, so you can use it to adjust the propor- tions of the output image (set it to 1 for no scaling - but keep in mind that the projection also performs scaling according to the view- port size). Typically, you will pass (float)w/(float)h, where w and h are the parameters you passed to set_projection_viewport. Note that versions prior to 4.1.0 multiplied this aspect ratio by 4/3. SEE ALSO
apply_matrix(3alleg4), get_align_matrix(3alleg4), set_projection_viewport(3alleg4), persp_project(3alleg4) Allegro version 4.4.2 get_camera_matrix(3alleg4)
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