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Diffstat (limited to 'samples/s006_3d_data.m')
-rw-r--r-- | samples/s006_3d_data.m | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/samples/s006_3d_data.m b/samples/s006_3d_data.m deleted file mode 100644 index 32d88cc..0000000 --- a/samples/s006_3d_data.m +++ /dev/null @@ -1,62 +0,0 @@ -% ----------------------------------------------------------------------- -% This file is part of the ASTRA Toolbox -% -% Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp -% 2014-2015, CWI, Amsterdam -% License: Open Source under GPLv3 -% Contact: astra@uantwerpen.be -% Website: http://sf.net/projects/astra-toolbox -% ----------------------------------------------------------------------- - -% Create a 3D volume geometry. -% Parameter order: rows, colums, slices (y, x, z) -vol_geom = astra_create_vol_geom(64, 48, 32); - - -% Create volumes - -% initialized to zero -v0 = astra_mex_data3d('create', '-vol', vol_geom); - -% initialized to 3.0 -v1 = astra_mex_data3d('create', '-vol', vol_geom, 3.0); - -% initialized to a matrix. A may be a single or double array. -% Coordinate order: column, row, slice (x, y, z) -A = zeros(48, 64, 32); -v2 = astra_mex_data3d('create', '-vol', vol_geom, A); - - -% Projection data - -% 2 projection directions, along x and y axis resp. -V = [ 1 0 0 0 0 0 0 1 0 0 0 1 ; ... - 0 1 0 0 0 0 -1 0 0 0 0 1 ]; -% 32 rows (v), 64 columns (u) -proj_geom = astra_create_proj_geom('parallel3d_vec', 32, 64, V); - -s0 = astra_mex_data3d('create', '-proj3d', proj_geom); - -% Initialization to a scalar or zero works exactly as with a volume. - -% Initialized to a matrix: -% Coordinate order: column (u), angle, row (v) -A = zeros(64, 2, 32); -s1 = astra_mex_data3d('create', '-proj3d', proj_geom, A); - - -% Retrieve data: -R = astra_mex_data3d('get', v1); - -% Retrieve data as a single array. Since astra internally stores -% data as single precision, this is more efficient: -R = astra_mex_data3d('get_single', v1); - - - -% Delete all created data objects -astra_mex_data3d('delete', v0); -astra_mex_data3d('delete', v1); -astra_mex_data3d('delete', v2); -astra_mex_data3d('delete', s0); -astra_mex_data3d('delete', s1); |