Serves two purposes: (i) Provide a
comfortable R interface to query the Google server for static
maps, and (ii) Use the map as a background image to overlay
plots within R. This requires proper coordinate scaling.

Overlays on Static Maps

package-ubuntu-20.04-r-4.0.5#cran#RgoogleMaps-1.4.5.3

inspired by <code>osmtile</code> from the package <code>OpenStreetmap</code>

returns the Mercator projection bounding box

osmtile_bbox(x = 61, y = 41, zoom = 7, minim = -20037508)

<table summary="R argblock">
<tr valign="top">
<td><code>x</code></td>
<td>
x tile coordinate
</td>
</tr>
<tr valign="top">
<td><code>y</code></td>
<td>
x tile coordinate
</td>
</tr>
<tr valign="top">
<td><code>zoom</code></td>
<td>
zoom level
</td>
</tr>
<tr valign="top">
<td><code>minim</code></td>
<td>
parameter for OSM projection
</td>
</tr>
</table>

bounding box, Mercator projection

package-ubuntu-20.04-r-4.0.5#cran#RgoogleMaps-1.4.5.3#docs#osmtile_bbox

osmtile_bbox

Description

Usage

Arguments

Value

Author(s)

RgoogleMaps

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`x`	x tile coordinate
`y`	x tile coordinate
`zoom`	zoom level
`minim`	parameter for OSM projection