PIV-OH Overlap

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Francesco Pignatelli
回答： Francesco Pignatelli 2022-7-26
Hello all,
I am not new with Matlab but I am quite unexpert on dealing with imaging and overlapping.
I have a vector field from my PIV results and I want to overlap it on my PLIF image. Thus, I have a 3D matrix for the PIV (x,y,velocity) that I plot with quiver and a 2D image for PLIF (it is a .SPE file). When I overlap these just by using:
quiver(x,y,x_velocity, y_velocity)
hold on;
imagesc(PLIF_data)
I do not have a good math since the scales are different. How can I have the same scales for these two sets of data?
I do not think it should be a tough task for most of you but I am quite puzzled 'cause I am litterally brand new to this field
Thank you so much

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采纳的回答

Francesco Pignatelli
I have sorted it out.

更多回答（1 个）

yanqi liu
yanqi liu 2022-3-18
yes，sir，may be use
quiver(x,y,x_velocity, y_velocity)
hold on;
h=imshow(PLIF_data,[])
set(h,'AlphaData',0.5)

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