Index: matlab/AddPcbrndVia.m
===================================================================
--- matlab/AddPcbrndVia.m	(nonexistent)
+++ matlab/AddPcbrndVia.m	(revision 28801)
@@ -0,0 +1,45 @@
+function CSX = AddPcbrndVia(CSX, PCBRND, layer_start, layer_stop, points, dia_od)
+%
+% Copyright (C) 2017 Evan Foss
+%
+% This program is free software: you can redistribute it and/or modify
+% it under the terms of the GNU Lesser General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU Lesser General Public License for more details.
+% 
+% You should have received a copy of the GNU Lesser General Public License
+% along with this program.  If not, see <http://www.gnu.org/licenses/>
+%
+
+% the following converts the 
+points = CalcPcbrndPointsOffset(PCBRND, points);
+
+start_z = PCBRND.layer_types(PCBRND.layers(layer_start).number);
+stop_z = PCBRND.layer_types(PCBRND.layers(layer_stop).number);
+
+% the following escapes my otherwise clean priority lookup scheme and I 
+% should appologize for that.
+priority = prio.coppertrace;
+
+% we need the start and stop layer info for the following reasons
+% if ether of them is 3D instead of 2D that must be added to the via.
+% we need to use the matterial from the start layer to decide the via 
+% matterial.
+start.layer = PCBRND.layer_types(PCBRND.layers(layer_start).number);
+stop.layer = PCBRND.layer_types(PCBRND.layers(layer_stop).number);
+
+% here is do the math for converting [x, y] to [x, y, z] with z offsets for 
+% start and stop layer thickness.
+points
+
+% unlike the other public functions in pcb2csx this currently doesn't obey any 
+% changes on 2D vs 3D copper layers. 
+%CSX = AddCylinder(CSX,current.name,1,[0 0 -300], [0 200 300], 300);
+
+endfunction
+