How to plot a road along its height.

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Muhammad Qaisar Fahim
评论： Sam Chak 2022-3-21
Actually the data I have has latitude(x) and longitude(y) of a road and also I have height of the road (z). Now I want to construct a plot which has shows height too and that height should be color coded. How can I do that ?
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Sam Chak
Sam Chak 2022-3-21
Hi @Muhammad Qaisar Fahim
Are you trying to plot a top view of the roads and indicate the height of each road?
Muhammad Qaisar Fahim
Muhammad Qaisar Fahim 2022-3-21
Yes that is what I want. I copied a data in below comment which include longitude, latitude and height

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采纳的回答

KSSV
KSSV 2022-3-21
Read about surf. It also depends on what data you have and how want to show up the plot. More help on sharing the data and showing your expectations.
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KSSV
KSSV 2022-3-21
Your data is huge, you need to restrict the data to a certain limit, plot and then see.

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更多回答（1 个）

Sam Chak
Sam Chak 2022-3-21
Hi @Muhammad Qaisar Fahim
I guess you want to show something like this. Because the data is dense, it is not recommended to show the height of every point. But you can definitely adjust how and which particular point/region that you want to show the heights.
plot(A, B)
for t = 1:4379:numel(A)
text(A(t) + 0.0001, B(t) + 0.0001, ['(',num2str(C(t)),')'])
end
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Sam Chak
Sam Chak 2022-3-21
Hi @Muhammad Qaisar Fahim
Wait. I think you need to consider the Earth radius (6371 km) in order to project the location of the points on the curved surface in Cartesian coordinates.
And then at each point, you want to show the elevation in the C.mat data using the color gradient. I think the z coordinate in not needed.
x = (6371).*cos(B).*cos(A);
y = (6371).*cos(B).*sin(A);
z = (6371).*sin(B);
Sam Chak
Sam Chak 2022-3-21
Is the road curved? We need you to confirm.
x = (6371).*cos(B).*cos(A);
y = (6371).*cos(B).*sin(A);
scatter(x, y)

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