srf.bff

toolbox of BVQX, This is the access between BV and matlab. It will help you to analysis data from BV

# BinaryFileFormat (leave this tag as its own magic token!)

# BVQX file format for *.SRF files (SuRFaces)
# SRF FileVersions supported: 3, 4
#
# Note: for new SRFs, the neighbor information is *ivalid* !
#
# Version:  v0.6d
# Build:    7020711
# Date:     Feb-07 2007, 11:45 AM CET
# Author:   Jochen Weber, Brain Innovation, B.V., Maastricht, NL
# URL/Info: http://wiki.brainvoyager.com/BVQXtools

# FILE FORMAT
Description:Surface mesh files
EncodingSyntax:ieee-le
Extensions:srf

# FIELDS
ListOfFields:!
type  !cond                   !disktype!datatype!dim                      !default !varname
FIELD !                       !single  !double  !1, 1                     !        !FileVersion
FIELD !                       !int32   !double  !1, 1                     !0       !Reserved0
FIELD !                       !uint32  !double  !1, 1                     !        !NrOfVertices
FIELD !                       !uint32  !double  !1, 1                     !        !NrOfTriangles
FIELD !                       !single  !double  !1, 3                     !        !MeshCenter
FIELD !                       !single  !double  !@NrOfVertices, 3         !        !VertexCoordinate
FIELD !                       !single  !double  !@NrOfVertices, 3         !        !VertexNormal
FIELD !                       !single  !double  !1, 4                     !        !ConvexRGBA
FIELD !                       !single  !double  !1, 4                     !        !ConcaveRGBA
FIELD !                       !uint32  !colcode !@NrOfVertices, 1         !        !VertexColor

# reading/writing nearest neighbors lists (external function to speed IO up)
EXPRE !$BFFREAD           !!!!!@Neighbors = bvqx_srf_parseneighbors(fid, @NrOfVertices);
EXPRE !$BFFWRITE          !!!!!bvqx_srf_writeneighbors(fid, @Neighbors);

# triangles & strips
EXPRE !$BFFWRITE          !!!!!@TriangleVertex = @TriangleVertex' - 1;
FIELD !                       !uint32  !double  !3, @NrOfTriangles        !        !TriangleVertex
EXPRE !                   !!!!!@TriangleVertex = @TriangleVertex' + 1;
FIELD !                       !uint32  !double  !1, 1                     !        !NrOfTriangleStrips
EXPRE !$BFFREAD           !!!!!@TriangleStripSequence = zeros(0, 1);
EXPRE !$BFFWRITE          !!!!!@TriangleStripSequence = @TriangleStripSequence - 1;
FIELD !@NrOfTriangleStrips > 0!uint32  !double  !@NrOfTriangleStrips, 1   !        !TriangleStripSequence
EXPRE !                   !!!!!@TriangleStripSequence = @TriangleStripSequence + 1;

# auto-linked MTC filename
FIELD !@FileVersion > 3       !cstring !cstring !1, 1                     !        !AutoLinkedMTC

# Read rest of File into REMAININGCONTENT
EXPRE !$BFFREAD           !!!!!$RemSize = $FILESIZE - ftell(fid);
EXPRE !$BFFWRITE          !!!!!$RemSize = 0; try, if isfield(@@, 'REMAININGCONTENT'), $RemSize = prod(size(@REMAININGCONTENT)); end, end
FIELD !$RemSize > 0           !uint8   !uint8   !1, $RemSize              !        !REMAININGCONTENT

EndListOfFields

NewFileCode:!
@FileVersion = 4;
@Reserved0 = 0;
@NrOfVertices = 40962;
@NrOfTriangles = 81920;
@MeshCenter = [128, 128, 128];
@VertexCoordinate = 128 * ones(@NrOfVertices, 3);
@VertexNormal = [ones(@NrOfVertices, 1), zeros(@NrOfVertices, 2)];
@ConvexRGBA = [0.333, 0.677, 0.980, 0.400];
@ConcaveRGBA = [0.10, 0.240, 0.333, 0.400];
@VertexColor = uint322colcode(uint32(zeros(@NrOfVertices, 1)));
@Neighbors = cell(@NrOfVertices, 2);
@Neighbors{1, 1} = 5;
@Neighbors{1, 2} = zeros(1, 5);
@Neighbors(2:12, :) = @Neighbors(ones(1, 11), :);
@Neighbors{13, 1} = 6;
@Neighbors{13, 2} = zeros(1, 6);
@Neighbors(14:@NrOfVertices, :) = @Neighbors(13 * ones(1, @NrOfVertices - 13), :);
@TriangleVertex = zeros(@NrOfTriangles, 3);
@NrOfTriangleStrips = 0;
@TriangleStripSequence = zeros(0, 1);
@AutoLinkedMTC = '';
EndNewFileCode