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53 lines
1.4 KiB
53 lines
1.4 KiB
%--------------------------
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% @Author: Jingqiao Hu
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% @Date: 2021-12-28 21:34:40
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% @LastEditTime: 2022-05-09 21:09:42
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% the mesh and MMCs are independent,
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% which means the MMCs is moving and the mesh remains unchanged
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% c_interPolySeed: the intersected polytope for each seed
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%--------------------------
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function [c_rho, c_phi] = projection_independent_hex(c_nodes, c_tets, ...
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MMCs, epsilon, c_nnbEdgeIDX, c_interPolySeed)
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ncvt = size(c_nodes, 1);
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npnts = size(c_interPolySeed, 1);
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c_phi = init_phi(ncvt, c_nodes);
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c_rho = cell(ncvt, 1);
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for i = 1 : npnts
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pid = c_interPolySeed{i};
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mid = c_nnbEdgeIDX{i};
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for j = 1 : length(mid)
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mmc = MMCs(mid(j), :);
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t = mmc(1);
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sp = mmc(2:4);
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ep = mmc(5:7);
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for k = 1 : length(pid)
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ele = pid(k);
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nodes = c_nodes{ele};
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phi = signed_distance(nodes, sp, ep, t);
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c_phi{ele} = max(phi, c_phi{ele});
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end
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end
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end
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% Heaviside
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parfor ele = 1 : ncvt
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H = Heaviside_simply(c_phi{ele}, epsilon);
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faces = c_tets{ele};
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c_rho{ele} = sum(H(faces), 2) / length(faces);
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end
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end
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function phi_cell = init_phi(ncvt, c_nodes)
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phi_cell = cell(ncvt, 1);
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parfor ele = 1:ncvt
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phi_cell{ele} = repmat(-1e5, size(c_nodes{ele}, 1), 1);
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end
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end
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