You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
4.5 KiB
136 lines
4.5 KiB
%--------------------------
|
|
% @Author: Jingqiao Hu
|
|
% @Date: 2021-06-16 15:55:30
|
|
% @LastEditTime: 2021-07-01 16:16:54
|
|
|
|
% [cx, cy] is the coordinate of the target coarse-node
|
|
%--------------------------
|
|
function plot_NH_bezier(cx, cy, lx, microx, nelx, nely, addNum, NH)
|
|
|
|
% find node-id based on [cx, cy]
|
|
[ref_nodes, ~, ~] = multi_generate_mesh(lx, nelx, nely, addNum);
|
|
nid = project_force(cx, cy, ref_nodes);
|
|
|
|
eid_global = nodes_eles_id(nelx, nely, 2, microx);
|
|
eid = sort(eid_global{nid}); % acsending
|
|
|
|
dx = lx / microx;
|
|
[gridx, gridy] = meshgrid(0:dx:2*lx, 0:dx:2*lx);
|
|
gridy = flipud(gridy);
|
|
gridx = fliplr(gridx);
|
|
|
|
for ii = 2
|
|
for jj = 2
|
|
|
|
figure;
|
|
|
|
for i = 1:4
|
|
e0 = eid(i);
|
|
NHe = NH{e0}; % [(microx+1)^2, 2, 2, nnodes]
|
|
|
|
switch i
|
|
case 3
|
|
NHi = NHe(:,:,:,2); % unitp
|
|
% NHi = NHe(:,:,:,4);
|
|
gxi = gridx(1:microx+1, 1:microx+1);
|
|
gyi = gridy(1:microx+1, 1:microx+1);
|
|
|
|
gx_b = gridx(1:microx+1, microx+1);
|
|
gy_b = gridy(1:microx+1, 1);
|
|
cv_i = microx+1;
|
|
cv_j = fliplr(1:microx+1);
|
|
|
|
% to plot full-scale bilinear surf
|
|
% cv = reshape(NHi(:,ii,jj), microx+1, microx+1);
|
|
% cv(:) = 0;
|
|
% cv(1, end) = 1;
|
|
% cv = flipud(cv);
|
|
|
|
case 4
|
|
NHi = NHe(:,:,:,3); % unitp
|
|
% NHi = NHe(:,:,:,7);
|
|
gxi = gridx(1:microx+1, 1:microx+1);
|
|
gyi = gridy(microx+1:end, microx+1:end);
|
|
|
|
gx_b = gxi(1, :);
|
|
gy_b = gyi(1, :);
|
|
cv_i = 1;
|
|
cv_j = fliplr(1:microx+1);
|
|
|
|
% cv = reshape(NHi(:,ii,jj), microx+1, microx+1);
|
|
% cv(:) = 0;
|
|
% cv(end, end) = 1;
|
|
% cv = flipud(cv);
|
|
|
|
case 1
|
|
NHi = NHe(:,:,:,1); % unitp
|
|
% NHi = NHe(:,:,:,1);
|
|
gxi = gridx(microx+1:end, microx+1:end);
|
|
gyi = gridy(1:microx+1, 1:microx+1);
|
|
|
|
gx_b = gxi(end, :);
|
|
gy_b = gyi(end, :);
|
|
cv_i = microx+1;
|
|
cv_j = fliplr(1:microx+1);
|
|
|
|
% cv = reshape(NHi(:,ii,jj), microx+1, microx+1);
|
|
% cv(:) = 0;
|
|
% cv(1, 1) = 1;
|
|
% cv = flipud(cv);
|
|
|
|
case 2
|
|
NHi = NHe(:,:,:,4); % unitp
|
|
% NHi = NHe(:,:,:,10);
|
|
gxi = gridx(microx+1:end, microx+1:end);
|
|
gyi = gridy(microx+1:end, microx+1:end);
|
|
|
|
gx_b = gxi(:, 1);
|
|
gy_b = gyi(:, 1);
|
|
cv_i = 1:microx+1;
|
|
cv_j = 1;
|
|
|
|
% cv = reshape(NHi(:,ii,jj), microx+1, microx+1);
|
|
% cv(:) = 0;
|
|
% cv(end, 1) = 1;
|
|
% cv = flipud(cv);
|
|
end
|
|
|
|
cv = reshape(NHi(:,ii,jj), microx+1, microx+1);
|
|
s = surf(gxi, gyi, cv);
|
|
colormap(jet); caxis([0,1]);
|
|
s.FaceColor = 'interp';
|
|
s.EdgeColor = [0.2,0.2,0.2];
|
|
% s.EdgeColor = 'none';
|
|
|
|
hold on;
|
|
|
|
bsurf2 = cv(cv_i,cv_j);
|
|
s1 = plot3(gx_b, gy_b, fliplr(bsurf2),'--');
|
|
s1.LineWidth = 2;
|
|
s1.Color = 'k';
|
|
end
|
|
end
|
|
end
|
|
grid off; axis equal; axis off;
|
|
set(gca,'FontSize',14,'FontWeight','bold');
|
|
end
|
|
|
|
% if vx / vy < 0, means taking all indices
|
|
function nodes2 = project_force(vx, vz, nodes)
|
|
nodes(:,3) = 1:size(nodes,1);
|
|
if vx > -1e-3 % valid
|
|
v = min(abs(nodes(:,1) - vx));
|
|
[ix, ~] = find(abs(nodes(:,1)-v-vx) < 1e-3);
|
|
nodes1 = nodes(ix, :);
|
|
else
|
|
nodes1 = nodes;
|
|
end
|
|
|
|
if vz > -1e-3 % valid
|
|
v = min(abs(nodes1(:,2) - vz));
|
|
[iz, ~] = find(abs(nodes1(:,2)-v-vz) < 1e-3);
|
|
nodes2 = nodes1(iz, 3);
|
|
else
|
|
nodes2 = nodes1(:,3);
|
|
end
|
|
end
|