[Matplotlib-users] How can I visualize a landscape which I have sample heights of?

[justonium]

I have a set of three dimensional coordinates, each of which is on a
landscape. I would like to visualize the entire landscape.

I've already tried plotting the points in 3D space using Axes3D.scatter, but
I just see a bunch of points, and it's hard to visually understand what's
going on.

Ideally, I would like to view a wireframe plot. In order for this to be
drawn, height values will need to be interpolated from the samples that I
have, which don't line up with a grid.

Another solution might be:

For each point, draw a vertical line from it, straight down, to a point
below it which has the same x and y coordinates, with 0 as the z coordinate.
This might still be difficult to visually understand.



--
View this message in context: http://matplotlib.1069221.n5.nabble.com/How-can-I-visualize-a-landscape-which-I-have-sample-heights-of-tp45834.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

[Philipp A.]

hi!

do a delaunay triangulation
<http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.spatial.Delaunay.html>
on them.

also try to do the triangulation only on the xy coordinates and see which
of both gives the results you like more.

best, p

Post by justonium
I have a set of three dimensional coordinates, each of which is on a
landscape. I would like to visualize the entire landscape.
I've already tried plotting the points in 3D space using Axes3D.scatter, but
I just see a bunch of points, and it's hard to visually understand what's
going on.
Ideally, I would like to view a wireframe plot. In order for this to be
drawn, height values will need to be interpolated from the samples that I
have, which don't line up with a grid.
For each point, draw a vertical line from it, straight down, to a point
below it which has the same x and y coordinates, with 0 as the z coordinate.
This might still be difficult to visually understand.
--
http://matplotlib.1069221.n5.nabble.com/How-can-I-visualize-a-landscape-which-I-have-sample-heights-of-tp45834.html
Sent from the matplotlib - users mailing list archive at Nabble.com.
------------------------------------------------------------------------------
Monitor 25 network devices or servers for free with OpManager!
OpManager is web-based network management software that monitors
network devices and physical & virtual servers, alerts via email & sms
for fault. Monitor 25 devices for free with no restriction. Download now
http://ad.doubleclick.net/ddm/clk/292181274;119417398;o
_______________________________________________
Matplotlib-users mailing list
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

[Ian Thomas]

The mplot3d tutorial page, which is the first result when you google
'mplot3d', includes a section on 'Tri-surface plots' and is precisely what
you are looking for.

You certainly do not need to use scipy. Matplotlib includes its own
Delaunay triangulator, as specified in the 'triangular grids'
documentation, which is the first result when you google 'matplotlib
triangulation'.

Ian

Post by Philipp A.
hi!
do a delaunay triangulation
<http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.spatial.Delaunay.html>
on them.
also try to do the triangulation only on the xy coordinates and see which
of both gives the results you like more.
best, p

Post by justonium
I have a set of three dimensional coordinates, each of which is on a
landscape. I would like to visualize the entire landscape.
I've already tried plotting the points in 3D space using Axes3D.scatter, but
I just see a bunch of points, and it's hard to visually understand what's
going on.
Ideally, I would like to view a wireframe plot. In order for this to be
drawn, height values will need to be interpolated from the samples that I
have, which don't line up with a grid.
For each point, draw a vertical line from it, straight down, to a point
below it which has the same x and y coordinates, with 0 as the z coordinate.
This might still be difficult to visually understand.
--
http://matplotlib.1069221.n5.nabble.com/How-can-I-visualize-a-landscape-which-I-have-sample-heights-of-tp45834.html
Sent from the matplotlib - users mailing list archive at Nabble.com.
------------------------------------------------------------------------------
Monitor 25 network devices or servers for free with OpManager!
OpManager is web-based network management software that monitors
network devices and physical & virtual servers, alerts via email & sms
for fault. Monitor 25 devices for free with no restriction. Download now
http://ad.doubleclick.net/ddm/clk/292181274;119417398;o
_______________________________________________
Matplotlib-users mailing list
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

------------------------------------------------------------------------------
Monitor 25 network devices or servers for free with OpManager!
OpManager is web-based network management software that monitors
network devices and physical & virtual servers, alerts via email & sms
for fault. Monitor 25 devices for free with no restriction. Download now
http://ad.doubleclick.net/ddm/clk/292181274;119417398;o
_______________________________________________
Matplotlib-users mailing list
https://lists.sourceforge.net/lists/listinfo/matplotlib-users