“x”、“y”和“u”是表示下面网格的每个节点的x坐标、y坐标和速度的2D矩阵(图)。我想对(x_q，y_q)进行内插，以求出任意点(Q)的u_q。
我的网格不是矩形的，“interp2”错误是：“输入网格不是有效的MESHGRID”。
有什么理想吗？我能做些什么？
谢谢。

最小可重现示例：

x=[0.0482114583977891,0.0482201588072998,0.0482288592168105;0.0513027685854806,0.0512573490659834,0.0512119412024664;0.0550957532853860,0.0550195888619688,0.0549437786953572;0.0589706773586289,0.0589051888951395,0.0588397004316502];
y=[-0.0481475644832381,-0.0450026617243515,-0.0418577589654650;-0.0454644879533678,-0.0426002662557475,-0.0397360636257961;-0.0434988768053532,-0.0408400599208391,-0.0381819554721181;-0.0414343539900984,-0.0389341351227583,-0.0364339162554183];
u=[1.52583130467469,14.3816671073665,58.5433654462735;108.677373003789,124.842139940676,145.468567077514;110.206733380171,111.157308056414,111.709609403516;135.414711548714,138.843419308648,147.988201447309];
xq=0.065;
yq=0.035;
uq = interp2(x,y,u,xq,yq,'cubic',0);