How to make a 1D become 2D and create a contourf plot

Question

Kafayat Olayinka 2020-2-11

评论： Kafayat Olayinka 2020-2-14

Let say:

time=[1:10];
height=[100:100:1000];
temp=[273:1:282];

So as, i can plot(time,temp)

and i can also plot(temp,height)

How can I make newTemp(time,height) so that I can make a contourf plot such that

v-[1:1:100]
contourf(time,height,newTemp,v)

KSSV 2020-2-12

Do you have any equations for that? What is the dependency?

There is no equation to this problem. I want Temp(time,height) for my contourf plot.

Answer 1

Ajay Pattassery 2020-2-14

You could use meshgrid which returns the 2-D grid coordinates contained in the vectors time and height.

[timeX,heightY] = meshgrid(time, height);

Then You can define newTemp for all the values of [timeX,heightY] and use contourf.

v-[1:1:100]
contourf(timeX,heightY,newTemp,v);

Refer here for more information about meshgrid.

Refer the section Contours at Ten Levels in following example for usage of contourf.

Thank you very much