79 lines
2.6 KiB
Matlab
79 lines
2.6 KiB
Matlab
%绘制桁架函数，Scale为变形缩放系数(以下为绘制图像部分）
|
||
function ForcePlot(ele,Load,Constr,x,y,U,LineWidth,LineStyle,AxialForce)
|
||
CoordScale=[max(x)-min(x),max(y)-min(y)];
|
||
k=1;
|
||
% AxialForce 2*Ele_num
|
||
maxForce=max(max(AxialForce));
|
||
Scale=CoordScale(1)/maxForce/3;
|
||
% %计算变形后坐标
|
||
% for i=1:length(x)
|
||
% if Constr(k,1)==i%--约束节点坐标不变
|
||
% k=k+1;
|
||
% else%--非约束节点坐标加上缩放后的位移
|
||
% x(i)=x(i)+Scale*U(2*i-1,1);y(i)=y(i)+Scale*U(2*i,1);
|
||
% end
|
||
% end
|
||
%绘制杆件
|
||
jet_color = colormap(jet(ceil(max(AxialForce(1,:))-min(AxialForce(1,:))+1)));%+1是为了避免索引为0
|
||
|
||
color_index = ceil(AxialForce(1,:)+(1-min(AxialForce(1,:))));
|
||
|
||
for i=1:length(ele(:,1))
|
||
|
||
plot([x(ele(i,2)),x(ele(i,3))],[y(ele(i,2)),y(ele(i,3))],...
|
||
'k-','LineWidth',LineWidth*ele(i,4)/max(ele(:,4)));
|
||
hold on
|
||
end
|
||
%绘制力
|
||
for i=1:length(ele(:,1))
|
||
if x(ele(i,2))==x(ele(i,3))
|
||
plot([x(ele(i,2)),x(ele(i,2))+Scale*AxialForce(1,i),x(ele(i,3))+Scale*AxialForce(2,i),x(ele(i,3))],[y(ele(i,2)),y(ele(i,2)),y(ele(i,3)),y(ele(i,3))],...
|
||
'color',jet_color(color_index(i),:),'LineWidth',LineWidth*ele(i,4)/max(ele(:,4)));
|
||
else
|
||
plot([x(ele(i,2)),x(ele(i,2)),x(ele(i,3)),x(ele(i,3))],[y(ele(i,2)),y(ele(i,2))+Scale*AxialForce(1,i),y(ele(i,3))+Scale*AxialForce(2,i),y(ele(i,3))],...
|
||
'color',jet_color(color_index(i),:),'LineWidth',LineWidth*ele(i,4)/max(ele(:,4)));
|
||
end
|
||
hold on
|
||
end
|
||
colorbar
|
||
caxis([min(AxialForce(1,:)),max(AxialForce(1,:))]);
|
||
% figure
|
||
% for i=1:length(ele(:,1))
|
||
% plot([x(ele(i,2)),x(ele(i,3))],[y(ele(i,2)),y(ele(i,3))],...
|
||
% LineStyle,'LineWidth',LineWidth*ele(i,4)/max(ele(:,4)));
|
||
%
|
||
% hold on
|
||
% end
|
||
%绘制节点
|
||
for i=1:length(x)
|
||
x1=x(i);y1=y(i);
|
||
scatter(x1,y1,15,'k','filled')
|
||
end
|
||
|
||
%绘制载荷
|
||
maxLoad=abs(Load(1,2))%寻找绝对值最大的·载荷
|
||
for i=1:length(Load(:,1))
|
||
if(maxLoad<abs(Load(i,3)))
|
||
maxLoad=abs(Load(i,3))
|
||
end
|
||
end
|
||
for i=1:length(Load(:,1))%绘制载荷箭头
|
||
quiver(x(Load(i,1)),y(Load(i,1)),Load(i,2)/max(maxLoad),...
|
||
Load(i,3)/max(maxLoad),...
|
||
'LineWidth',1,'color','r','AutoScaleFactor',0.15*(CoordScale(1)+CoordScale(2)),...
|
||
'MaxHeadSize',0.01*(CoordScale(1)+CoordScale(2)));
|
||
end
|
||
%绘制约束--选用结构最大的坐标尺寸作为基准来绘制约束
|
||
for i=1:length(Constr(:,1))
|
||
plot([x(Constr(i,1)) x(Constr(i,1))-0.02*max(CoordScale) x(Constr(i,1))+...
|
||
0.02*max(CoordScale) x(Constr(i,1))],[y(Constr(i,1)) y(Constr(i,1))-...
|
||
0.02*max(CoordScale) y(Constr(i,1))-0.02*max(CoordScale) y(Constr(i,1))],...
|
||
'LineWidth',0.8,'color','r');
|
||
end
|
||
%绘制坐标轴
|
||
axis equal
|
||
% axis([min(x)-0.1*CoordScale(1),max(x)+0.1*CoordScale(1),min(y)-...
|
||
% 0.1*CoordScale(2),max(y)+0.1*CoordScale(2)]...
|
||
% ) %限定图像的显示范围
|
||
hold off
|
||
end |