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### reduce spatial function in itaHRTF

parent 884d1890
 ... ... @@ -14,5 +14,44 @@ function [ cThis ] = reduce_spatial( this, newCoordinates, varargin ) % Author: Jan-Gerrit Richter % Version: 2017-11-23 oldCoords = this.getEar('L').channelCoordinates; % if the desired sampling has more points, its probably unfeasable with % findnearest search. Abort if oldCoords.nPoints < newCoordinates.nPoints error('There are more points in the wanted sampling than are available. You probably want the interp function'); end % the new coords should have the same radius as the old ones to reduce % errors newCoordinates.r = mean(oldCoords.r); oldCoords = oldCoords.build_search_database; newIndex = oldCoords.findnearest(newCoordinates); % calculate all distances from the wanted points to the found points pointDistances = getVectorLength(newCoordinates,oldCoords.n(newIndex)); % calculate the distance between two neighboring points of the new sampling newSamplingDistance = getVectorLength(newCoordinates.n(1),newCoordinates.n(2)); % the maximum of the found points should always be smaller if max(pointDistances) > newSamplingDistance error('The found points are further apart than the sampling allows. Something is wrong') end cThis = this.direction(newIndex); end function length = getVectorLength(pointsA, pointsB) pointsA.r = pointsB.r; vector = pointsA - pointsB; length = sqrt(vector.x.^2 + vector.y.^2 + vector.z.^2); end \ No newline at end of file
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