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69 lines
2.0 KiB
69 lines
2.0 KiB
3 years ago
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%--------------------------
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% @Author: Jingqiao Hu
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% @Date: 2021-12-28 21:34:40
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% @LastEditTime: 2022-01-08 22:41:19
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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_interPolyMMC: the intersected polygon for each mmc
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% c_interPolySeed: the intersected polygon for each seed
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%--------------------------
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function [c_rho, c_phi] = projection_independent(nodes_cell, faces_cell, ...
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MMCs, epsilon, c_nnbEdgeIDX, c_interPolySeed)
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ncvt = size(nodes_cell, 1);
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c_phi = init_phi(ncvt, nodes_cell);
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c_rho = cell(ncvt, 1);
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for i = 1 : ncvt
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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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for k = 1 : length(pid)
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ele = pid(k);
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nodes = nodes_cell{ele};
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phi = tPhi(mmc, nodes(:,1), nodes(:,2));
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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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% figure; clf
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parfor ele = 1 : ncvt
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H = Heaviside_simply(c_phi{ele}, epsilon);
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faces = faces_cell{ele};
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c_rho{ele} = sum(H(faces), 2) / 3;
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% nodes = nodes_cell{ele};
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% patch('Faces',faces,'Vertices',nodes,'FaceVertexCData',1 - H','FaceColor','interp','EdgeColor','interp'); hold on;
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end
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% colormap("gray"); axis equal; axis off; pause(1e-6);
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% % projection of signed distance
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% for i = 1 : nmmcs
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% mmc = MMCs(i, :);
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% r = c_interPolyMMC{i};
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% % for all intersected cell
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% for k = 1 : length(r)
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% ele = r(k);
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% nodes = nodes_cell{ele};
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% phi = tPhi(mmc, nodes(:,1), nodes(:,2));
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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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function phi_cell = init_phi(ncvt, nodes_cell)
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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(nodes_cell{ele}, 1), 1);
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end
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end
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