1.完整项目描述和程序获取
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2.部分仿真图预览
3.算法概述
三维手臂动态matlab仿真,可以灵活控制手指运动
4.部分源码
% Load the faces, vertices and weights
faces = csvread('handfaces.txt');
V0 = csvread('handverts.txt');
V0=V0';
N = size(V0,1);
weights = csvread('handweights.txt');
sk = loadbvh('HandBase.bvh');
wmap = [1 2 3 4 0 15 16 17 0 5 6 7 0 8 9 10 0 11 12 13 0 14 0];
wzero = wmap==0;
W = sparse(weights(:,1)+1,weights(:,2)+1,weights(:,3));
W = full(W);%W = W./repmat(sum(W,2),[1 size(W,2)]);
W = W(:,wmap+wzero);
W(:,wzero)=0;
cla
for displayWeightIndex=find(~wzero)
h = trisurf(faces+1,V0(1,:),V0(2,:),V0(3,:),W(:,displayWeightIndex));
axis equal; axis vis3d;
shading interp;
set(h,'FaceAlpha',0.5)
axis([-200 200 -100 100 -100 500]);
pause(0.2);
end
hold on
for j=2:258
V=V0*0;
cla
for i=1:length(sk)
% -------------------------------------------------------------------------
% Display the bones
if sk(i).parent
s=sk(i).t_xyz(:,j); sp = sk(sk(i).parent).t_xyz(:,j);
plot3([s(1) sp(1)],[s(2) sp(2)],[s(3) sp(3)],'r','LineWidth',5);
end
plot3(sk(i).t_xyz(1,j),sk(i).t_xyz(2,j),sk(i).t_xyz(3,j),'g.','MarkerSize',10);
if sk(i).Nchannels
plotax(sk(i).t_xyz(:,j)',sk(i).T(1:3,1:3,j)*sk(i).R0,15)
end
if sk(i).Nchannels
% Takes a local bone coordinate and puts it into the new pose global position
poseMatrix(:,:,i,j) = [(sk(i).T(1:3,1:3,j)*sk(i).R0) sk(i).t_xyz(:,j);0 0 0 1];
% Takes a local bone coordinate and puts it into the base pose global position
restMatrix(:,:,i) = [((sk(i).R0)) sk(i).head0 ;0 0 0 1];
M(:,:,j) = poseMatrix(:,:,i,j)*inv(restMatrix(:,:,i));
R = M(1:3,1:3,j);
t = M(1:3,4,j);
% We add the influence from every bone
V = V + (R*V0 + repmat(t,1,length(V0))) * spdiags(W(:,i),0,length(V),length(V));
end
end
h = trisurf(faces+1,V(1,:),V(2,:),V(3,:),W(:,2)*0);
axis off;
axis equal
shading interp;
light
lighting phong
set(h,'FaceAlpha',0.8)
drawnow
end
i = 20; j=2;
T = poseMatrix(1:3,1:3,i,j); Tp = poseMatrix(1:3,1:3,i-1,j); T_0 = restMatrix(1:3,1:3,i); Tp_0 = restMatrix(1:3,1:3,i-1);
R = (T_0')*(Tp_0)*(Tp')*(T);
[Rx Ry Rz] = dcm2angle(R,'XYZ');
Rx = rad2deg(-Rx); Ry = rad2deg(-Ry); Rz = rad2deg(-Rz);
[Rx Ry Rz]
A_100
