2D interpolation of scattered data

Hello everyone,

I am kind of new in Matlab and when I was trying to do things below, I got so confused. I digitized an experimental graph and take scattered datas.

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clear all; close all; clc load datas

x=datas(:,1); y=datas(:,2); v=datas(:,3);

[xq,yq] = meshgrid(3:0.1:12, 0:0.1:1.2);

vq = griddata(x,y,v,xq,yq);

contour(xq,yq,vq)

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for x=0:0.05:1 and with fixed y, I would like to find corresponding v value by using this digitized data. I think I should use griddata to do that but have no idea how to do. I´d be so appreciated if you would help me and give me an idea.

Thank you