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function mesh = DetectEdges(CSX, mesh, varargin)
% mesh = DetectEdges(CSX <, mesh, varargin>)
%
% Returns a mesh with the edges added of certain (see below) primitives
% found in the CSX structure.
%
% optional arguments:
% mesh: add edges to an existing (predefined) mesh
%
% optional: 'keyword', value
% 'Debug' enable debug mode (default is 1)
% 'AddPropertyType' add a list of additional property types to detect
% e.g. 'DumpBox' or {'DumpBox','ProbeBox'}
% 'SetPropertyType' set the list of property types to detect (override default)
% e.g. 'Metal' or {'Metal','ConductingSheet'}
% 'ExcludeProperty' give a list of property names to exclude from
% detection
% 'SetProperty' give a list of property names to handly exlusively for detection
%
% advanced options: 'keyword', value
% '2D_Metal_Edge_Res' define a one-third/two-third metal edge resolution
%
% example:
% CSX = InitCSX();
% % define all properties and primitives to detect
% % ...
% % ...
% mesh = DetectEdges(CSX);
% mesh = SmoothMesh(mesh, lambda/20/unit);
% CSX = DefineRectGrid(CSX, unit, mesh);
%
% Note:
% - Only primitives contained in Metal, Material, Excitation, LumpedElement
% or ConductingSheet properties are processed
% - Currently this function handles only Box, Polygons, LinPoly and Cylinder.
%
% CSXCAD matlab interface
% -----------------------
% author: Koen De Vleeschauwer (c) 2012
% modified by: Thorsten Liebig (c) 2012, 2013
%
% See also InitCSX, SmoothMesh, DefineRectGrid
supported_properties = {};
supported_properties{end+1}='Metal';
supported_properties{end+1}='Material';
supported_properties{end+1}='Excitation';
supported_properties{end+1}='LumpedElement';
supported_properties{end+1}='ConductingSheet';
exclude_list = {};
prop_list_only = {};
debug = 1;
mesh_2D_metal_edges = 0;
for n=1:2:numel(varargin)
if (strcmpi(varargin{n},'debug')==1);
debug = varargin{n+1};
elseif (strcmpi(varargin{n},'AddPropertyType')==1);
if iscell(varargin{n+1})
supported_properties(end+1) = varargin{n+1};
elseif ischar(varargin{n+1})
supported_properties{end+1} = varargin{n+1};
else
error('CSXCAD:DetectEdges','unknown property definition');
end
elseif (strcmpi(varargin{n},'SetPropertyType')==1);
if iscell(varargin{n+1})
supported_properties = varargin{n+1};
elseif ischar(varargin{n+1})
supported_properties = {varargin{n+1}};
else
error('CSXCAD:DetectEdges','unknown property definition');
end
elseif (strcmpi(varargin{n},'ExcludeProperty')==1);
exclude_list = varargin{n+1};
elseif (strcmpi(varargin{n},'SetProperty')==1);
prop_list_only = varargin{n+1};
elseif (strcmpi(varargin{n},'2D_Metal_Edge_Res')==1);
mesh_2D_metal_edges = varargin{n+1}*[-1 2]/3;
else
warning('CSXCAD:DetectEdges',['unknown argument: ' varargin{n}]);
end
end
if (nargin<2)
mesh = [];
end
if isempty(mesh)
if (CSX.ATTRIBUTE.CoordSystem==0)
mesh.x = [];
mesh.y = [];
mesh.z = [];
elseif (CSX.ATTRIBUTE.CoordSystem==1)
mesh.r = [];
mesh.a = [];
mesh.z = [];
else
error('CSXCAD:DetectEdges','unknown coordinate system used');
end
end
edges = {};
edges.x = [ ];
edges.y = [ ];
edges.z = [ ];
if (~isstruct(CSX))
error('expected a CSX structure');
end
CoordSystem = CSX.ATTRIBUTE.CoordSystem;
if (isfield(CSX, 'Properties'))
prop_fn = fieldnames(CSX.Properties);
for p = 1:numel(prop_fn)
if (sum(strcmpi(prop_fn{p}, supported_properties))==0)
continue;
end
isMetal = sum(strcmpi(prop_fn{p},{'Metal','ConductingSheet'}));
property_group = CSX.Properties.(prop_fn{p});
for m = 1:numel(property_group)
property=property_group{m};
if ~isfield(property, 'Primitives')
continue;
end
if (sum(strcmpi(property.ATTRIBUTE.Name,exclude_list)))
continue;
end
if (~isempty(prop_list_only) && (sum(strcmpi(property.ATTRIBUTE.Name,prop_list_only))==0))
continue;
end
primitives = property.Primitives;
prim_fn = fieldnames(primitives);
for n_prim = 1:numel(prim_fn)
if (strcmp(prim_fn{n_prim}, 'Box'))
for b = 1:length(primitives.Box)
box = primitives.Box{b};
x1 = box.P1.ATTRIBUTE.X;
y1 = box.P1.ATTRIBUTE.Y;
z1 = box.P1.ATTRIBUTE.Z;
x2 = box.P2.ATTRIBUTE.X;
y2 = box.P2.ATTRIBUTE.Y;
z2 = box.P2.ATTRIBUTE.Z;
% check dimension
dim = (x1~=x2) + (y1~=y2) + (z1~=z2);
if ((dim==2) && isMetal)
% add to global list of edges, with a given 2D
% edge resolution
edges = AddEdge (edges, box, x1+sign(x1-x2)*mesh_2D_metal_edges, y1+sign(y1-y2)*mesh_2D_metal_edges, ...
z1+sign(z1-z2)*mesh_2D_metal_edges, CoordSystem, debug);
edges = AddEdge (edges, box, x2+sign(x2-x1)*mesh_2D_metal_edges, y2+sign(y2-y1)*mesh_2D_metal_edges, ...
z2+sign(z2-z1)*mesh_2D_metal_edges, CoordSystem, debug);
else
% add to global list of edges
edges = AddEdge (edges, box, x1, y1, z1, CoordSystem, debug);
edges = AddEdge (edges, box, x2, y2, z2, CoordSystem, debug);
end
end
elseif (strcmp(prim_fn{n_prim}, 'LinPoly') || strcmp(prim_fn{n_prim}, 'Polygon'))
for l = 1:length(primitives.(prim_fn{n_prim}))
poly = primitives.(prim_fn{n_prim}){l};
dir = poly.ATTRIBUTE.NormDir + 1;
dirP = mod(poly.ATTRIBUTE.NormDir+1,3) + 1;
dirPP = mod(poly.ATTRIBUTE.NormDir+2,3) + 1;
lin_length = 0;
if (strcmp(prim_fn{n_prim}, 'LinPoly'))
lin_length = poly.ATTRIBUTE.Length;
end
if (isfield(poly, 'Vertex'))
for v = 1:length(poly.Vertex)
vertex = poly.Vertex{v};
edge(dir) = poly.ATTRIBUTE.Elevation;
edge(dirP) = vertex.ATTRIBUTE.X1;
edge(dirPP) = vertex.ATTRIBUTE.X2;
edges = AddEdge (edges, poly, edge(1), edge(2), edge(3), CoordSystem, debug);
if (lin_length~=0)
edge(dir) = edge(dir) + lin_length;
edges = AddEdge (edges, poly, edge(1), edge(2), edge(3), CoordSystem, debug);
end
end
end
end
elseif (strcmp(prim_fn{n_prim}, 'Cylinder'))
for c = 1:length(primitives.Cylinder)
cylinder = primitives.Cylinder{c};
r = cylinder.ATTRIBUTE.Radius;
x1 = cylinder.P1.ATTRIBUTE.X;
y1 = cylinder.P1.ATTRIBUTE.Y;
z1 = cylinder.P1.ATTRIBUTE.Z;
x2 = cylinder.P2.ATTRIBUTE.X;
y2 = cylinder.P2.ATTRIBUTE.Y;
z2 = cylinder.P2.ATTRIBUTE.Z;
if ((x1 == x2) && (y1 == y2) && (z1 ~= z2))
% cylinder parallel with z axis
edges = AddEdge (edges, cylinder, x1 - r, y1 - r, z1, CoordSystem, debug);
edges = AddEdge (edges, cylinder, x2 + r, y2 + r, z2, CoordSystem, debug);
elseif ((x1 == x2) && (y1 ~= y2) && (z1 == z2))
% cylinder parallel with y axis
edges = AddEdge (edges, cylinder, x1 - r, y1, z1 - r, CoordSystem, debug);
edges = AddEdge (edges, cylinder, x2 + r, y2, z2 + r, CoordSystem, debug);
elseif ((x1 ~= x2) && (y1 == y2) && (z1 == z2))
% cylinder parallel with x axis
edges = AddEdge (edges, cylinder, x1, y1 - r, z1 - r, CoordSystem, debug);
edges = AddEdge (edges, cylinder, x2, y2 + r, z2 + r, CoordSystem, debug);
elseif (debug > 0)
warning('CSXCAD:DetectEdges',['unsupported primitive of type: "' prim_fn{n_prim} '" found, skipping edges']);
end
end
else
if (debug>0)
warning('CSXCAD:DetectEdges',['unsupported primitive of type: "' prim_fn{n_prim} '" found, skipping edges']);
end
end
end
end
end
end
if (CSX.ATTRIBUTE.CoordSystem==0)
mesh.x = sort(unique([mesh.x edges.x]));
mesh.y = sort(unique([mesh.y edges.y]));
mesh.z = sort(unique([mesh.z edges.z]));
elseif (CSX.ATTRIBUTE.CoordSystem==1)
mesh.r = sort(unique([mesh.r edges.x]));
mesh.a = sort(unique([mesh.a edges.y]));
mesh.z = sort(unique([mesh.z edges.z]));
else
error('CSXCAD:DetectEdges','unknown coordinate system used');
end
end
function edges = AddEdge(edges, csx_prim, x, y, z, CoordSystem, debug)
% Add edges of CSX primitives including some transformations
xt = unique(x);
yt = unique(y);
zt = unique(z);
if isfield(csx_prim.ATTRIBUTE,'CoordSystem')
if (csx_prim.ATTRIBUTE.CoordSystem~=CoordSystem)
if (debug>2)
warning('CSXCAD:DetectEdges','different coordinate systems not supported, skipping edges');
end
return
end
end
if (isfield(csx_prim, 'Transformation'))
transformation = csx_prim.Transformation;
trans_fn = fieldnames(transformation);
for t=1:numel(trans_fn)
if (strcmp(trans_fn{t}, 'Translate'))
xt = xt + transformation.Translate.ATTRIBUTE.Argument(1);
yt = yt + transformation.Translate.ATTRIBUTE.Argument(2);
zt = zt + transformation.Translate.ATTRIBUTE.Argument(3);
else
if (debug>0)
warning('CSXCAD:DetectEdges','unsupported transformation found in primitive, skipping edges');
end
return
end
end
end
% add to global list of edges
edges.x = [edges.x xt];
edges.y = [edges.y yt];
edges.z = [edges.z zt];
end
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