An Easy Way to Draw Study Area
There are many ways to draw a map.
- ArcGIS, QGIS
QGIS, firstly we need a
shapefileof target area.
- Adobe Illustrator
MapPublisherplug-in, people can draw high resolution maps. Also, it can be saved as
If you don’t know anything about programming, you can also follow this tutorial. Mapping with
Ris pretty friendly. Users can export maps as
RStudio is a set of integrated tools designed to help you be more productive with R. download
Here we use
Stamen Maps and
Google Maps as an example.
Stamen Maps, there are many themes to choose from. “Toner” is for high-contrast B+W (black and white) map, with six flavors: standard toner, hybrid, labels, lines, background, and lite. “Terrain” suits terrain maps, featuring hill shading and natural vegetation colors, with four flavors: standard terrain, labels, lines, and background. Moreover, there are “Watercolor”, “Burning Map” and so forth.
Draw a map of China:
china <- c(left = 72, bottom = 15, right = 135, top = 60) # coordinates
But the problem for
Stamen Maps is not so detailed. If we set
zoom = 12, the map is blurring.
center <- c(left = 121.424063, bottom = 31.195848, right = 121.490231, top = 31.236447)
So we use
Google Map to draw maps with big zoom levels.
The benifit of Google is we don’t need to specify coordinates manully. We can put country or city names as we search them in
map <- get_map(location = 'Zhangjiang', zoom = 10)
ggmap there are much more fancy feathres can be plotted in maps. For instance,
choropleth map and also with external data.