Question

Here, I found a landscape GIS layer is really attractive, especially for presenting species/samples distributions. I would like to know if it can be reached in R or any other resources?

The GIS layer were used in Fig 1. in this article (http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2010.03479.x/full).

This Fig 1 image is here:

http://onlinelibrary.wiley.com/store/10.1111/j.1469-8137.2010.03479.x/asset/image_t/NPH_3479_f1_thumb.gif?v=1&t=gsk5sbhs&s=e5e2e4bbb194f799f7ab9bec85a416e295405784

I have ever tried to submit this question in R-sig-geo. But, I failed. I expect to get some helps/directions here.

Thanks a lots for any directions.

Best wishes,

Answer 1

Feng,
if I read the Google docs correctly, you can modify the labels and displayed features with the extra parameters style and element.
I did not include custom parameters for these in the RgoogleMaps package, however, you can easily pass ANY addition parameters via the path argument !
If you read the help file for GetMap carefully, you will note the following example:

note that since the path string is just appended to the URL you can “abuse” the path argument to pass anything to the query, e.g. the style parameter:

#The following example displays a map of Brooklyn where local roads have been changed to bright green and the residential areas have been changed to black:
## Not run: GetMap(center=’Brooklyn’, zoom=12, maptype = “roadmap”, path = “&style=feature:road.local|element:geometry|hue:0x00ff00|saturation:100&style=feature:landscape|element:geometry|lightness:-100”, sensor=’false’, destfile = “MyTile4.png”, RETURNIMAGE = FALSE);

Hope this helps,

Markus Loecher