how can I Create 2D Plot from a temperature vector ?

I need help with this!. I have 2 vectors "temp1" and "temp2". I need to create some kind of plot

makes something like this! (source and sink---and values of each vector)

each vector has temperatures like [24.7647 24.8619 24.9520 25.0347 25.1096 25.1765 25.2349 25.2846 25.3252 25.3567 25.3786 25.3909]. I need to make this plot in matlab. Both vectors have the same length (and you can select from 4 to 100 ). i've been searching but the standards plots of matlab cant help me with this problem. THANKS A LOT!