45 lines
1.2 KiB
Objective-C
Executable File
45 lines
1.2 KiB
Objective-C
Executable File
## Copyright (C) 2016 Jens Ahrensfeld
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##
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## This program is free software; you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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## -*- texinfo -*-
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## @deftypefn {Function File} {@var{retval} =} pt_eval (@var{input1}, @var{input2})
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##
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## @seealso{}
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## @end deftypefn
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## Author: Jens Ahrensfeld <ahrensfeld@w2ess001vm>
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## Created: 2016-11-04
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function pt_eval (vX, vY)
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if 0
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k = sqrt(2)/1.5;
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v = sqrt(vX^2 + vY^2);
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nx = k*abs(vX)/v;
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ny = k*abs(vY)/v;
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else
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k = 1.0/1.5;
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nx = k;
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ny = k;
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end
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mot1 = 0.5*vX*nx + vY*ny
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mot2 = -0.5*vX*nx + vY*ny
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rotX = mot1 - mot2
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rotY = 0.5*(mot1 + mot2)
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vrot = sqrt(rotX^2 + rotY^2)
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endfunction
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