Downloading map and elevation images
We'll download the OSM base map first, which has streets and labels:
# Download the OSM basemap
log.info("Downloading basemap")
wms(mminx, mminy, mmaxx, mmaxy, osm_WMS, osm_lyr, osm_epsg, osm_style, osm_img, w, h)This section will produce an intermediate image, as shown in the following screenshot:
Next, we'll download some elevation data from the SRTM dataset. SRTM is nearly-global and provides a 30-90 m resolution. The Python SRTM.py module makes working with this data easy. SRTM.py downloads the datasets that it needs to make a request. So if you download data from different areas, you may need to clean out ...
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