Unable to access the terrain data and import the .osm file in the site viewer

I tried to run the following line of code from the R2020a ray tracing example.

viewer = siteviewer("Buildings","hongkong.osm");

But then I got an error.

Error using siteviewer (line 213)

Unable to access terrain data 'gmted2010'. See Access Basemaps and Terrain in MATLAB.

However, if I run

uif = uifigure;
g = geoglobe(uif,'Terrain','none');
g.Terrain = 'gmted2010';

It works perfectly fine and accesses the terrain data successfully.

In addition, the same code worked well when I was in Canada but not here in China.

Thanks in advance.

[Abhi Sundararaman]

Does the terrain in siteviewer work without buildings? For example:

viewer = siteviewer("Terrain", "gmted2010"); %gmted2010 is the default terrain

[Weijia Huang]

viewer = siteviewer("Terrain", "gmted2010");

can run without any errors.

[Abhi Sundararaman]

Thanks for the response. You mentioned that the same code worked in Canada but not in China, so it’s possible that this is an internet access-related issue.

To work around the issue, you could try running the ray tracing example with “Terrain” set to “none” like so:

viewer = siteviewer("Buildings", "hongkong.osm", "Terrain", "none");

[Weijia Huang]

This solves the problem. Thank you!

[河山 张]

Why can't I solve the problem.

Incorrect use of siteViewer (line 110)

'Buildings' is an unrecognized parameter. See the documentation for this function for a list of valid name-value pair arguments.

错误使用 siteviewer (line 110)

'Buildings' 为无法识别的参数。 有关有效的名称-值对参数列表，请参阅 此函数 的文档。