amapro (version 0.1.4)

am.cmd: Run a command

Description

Execute a command on a target element

Usage

am.cmd(id, cmd = NULL, trgt = NULL, ...)

Value

A map or a map proxy

Arguments

id

A map widget from am.init or a proxy from am.proxy

cmd

AMap command name string, like 'setFitView', 'setMapStyle', etc.

trgt

A target's name string, or 'map' for the map itself.

...

command attributes from AMap API.
For AMap commands starting with 'get' there are two amapro attributes 'f' and 'r'.
'f' is an optional JS function to manipulate the data received,
'r' is the name of the Shiny variable receiving the data

Details

am.cmd provides interaction with the map.
Commands are sent to the map itself, or to objects inside or outside it.
AMap built-in objects have predefined set of commands listed in the API. Commands can modify an object (setZoom), but also get data from it (getCenter).
amapro introduces its own commands like set, addTo or code, described in the Introduction.

See Also

am.init code example and Introduction

Examples

if (interactive()) {
  # 'position' and 'content' are InfoWindow parameters from AMap API
  am.init() |> 
  am.cmd('set', 'InfoWindow', position=c(116.6, 40), content='Beijing')
  
  am.proxy("plot") |>
    am.cmd('getLayers', 'map',
           f= 'function(yy) { return yy.map(x => { return x.CLASS_NAME;}); }',
           r= 'result1')
}