Creating a 3D surface plot from a matrix

4 次查看（过去 30 天）
Josh K
Josh K 2017-12-12
评论： Josh K 2017-12-12
I am trying to create a 3D surface plot with a 50 x 3 matrix. The first 2 columns represent an x and y location and the 3rd column represents a value for the xy point. I am unable to figure out how to create the plot without errors. Thanks.
  2 个评论
Josh K
Josh K 2017-12-12
I was trying the surf function but I was having problems with my z being a scalar and not a matrix. The griddata function worked.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2017-12-12
That would only be possible if your data are gridded (so the x and y data are in regular patterns).
Probably the easiest way to determine that is to plot it with stem3. If the (x,y) data appear to regularly-spaced so the z data approximates a surface, use the reshape function on each of the vectors to form the required matrices.
If your data are scattered, use the griddata (link) function or one of its friends (linked to at the end of that page) to create your requisite gridded data to use with surf.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by