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Class mxn.Mapstraction


Defined in: mxn.core.js.

Class Summary
Constructor Attributes Constructor Name and Description
 
mxn.Mapstraction(element, api, debug)
Mapstraction instantiates a map with some API choice into the HTML element given
Field Summary
Field Attributes Field Name and Description
 
api
The name of the active API.
 
The DOM element containing the map.
 
The original element value passed to the constructor.
 
The markers currently loaded.
 
Options defaults.
 
The polylines currently loaded.
Method Summary
Method Attributes Method Name and Description
 
addControls adds controls to the map.
 
addEventListener(type, func, caller)
Add a listener for an event.
 
addFilter(name, presently, the)
addFilter adds a marker filter
 
addImageOverlay(unique, url, opacity, west, south, east, north)
addImageOverlay layers an georeferenced image over the map
 
addJSON(json)
 
Adds a large map panning control and zoom buttons to the map
 
Adds a map type control to the map (streets, aerial imagery etc)
 
addMarker(marker, old)
Adds a marker pin to the map
 
addMarkerWithData(marker, data)
addMarkerWithData will addData to the marker, then add it to the map
 
addOverlay(url, autoCenterAndZoom)
Adds a GeoRSS or KML overlay to the map some flavors of GeoRSS and KML are not supported by some of the Map providers
 
addPolyline(polyline, old)
Add a polyline to the map
 
addPolylineWithData(polyline, data)
addPolylineWithData will addData to the polyline, then add it to the map
 
Adds a small map panning control and zoom buttons to the map
 
addTileLayer(template, opacity, copyright, Minimum, Maximum, Should)
Adds a Tile Layer to the map Requires providing a parameterized tile url.
 
 
Applies the current option settings
 
Sets the center and zoom of the map to the smallest bounding box containing all markers and polylines
 
callEventListeners(sEventType, oEventArgs)
Call listeners for a particular event.
 
centerAndZoomOnPoints sets the center and zoom of the map from an array of points This is useful if you don't want to have to add markers to the map
 
clickHandler(lat, lon, me)
 
Declutter the markers on the map, group together overlapping markers.
 
doFilter(showCallback, hideCallback)
doFilter executes all filters added since last call Now supports a callback function for when a marker is shown or hidden
 
Enable/disable dragging of the map
 
Enable scroll wheel zooming
 
getAttributeExtremes returns the minimum/maximum of "field" from all markers
 
Gets the BoundingBox of the map
 
Gets the central point of the map
 
getMap returns the native map object that mapstraction is talking to
 
Gets the imagery type for the map.
 
Returns a ratio to turn distance into pixels based on current projection
 
Returns the zoom level of the map
 
Returns the best zoom level for bounds given
 
isLoaded(api)
Returns the loaded state of a Map Provider
 
mousePosition(element)
Displays the coordinates of the cursor in the HTML element
 
 
Automatically sets center and zoom level to show all polylines
 
removeAllFilters
 
removeAllMarkers removes all the Markers on a map
 
Removes all polylines from the map
 
removeFilter(field, operator, value)
Remove the specified filter
 
removeMarker(marker)
removeMarker removes a Marker from the map
 
removePolyline(polyline)
Remove the polyline from the map
 
resizeTo(width, height)
Resize the current map to the specified width and height (since it is actually on a child div of the mapElement passed as argument to the Mapstraction constructor, the resizing of this mapElement may have no effect on the size of the actual map)
 
Run any queued provider API calls for the methods defined in the provider's implementation.
 
setBounds(bounds)
Sets the map to the appropriate location and zoom for a given BoundingBox
 
setCenter(point, options)
setCenter sets the central point of the map
 
setCenterAndZoom(point, zoom)
Centers the map to some place and zoom level
 
setDebug(debug)
Set the debugging on or off - shows alert panels for functions that don't exist in Mapstraction
 
setDefer(set)
Set the api call deferment on or off - When it's on, mxn.invoke will queue up provider API calls until runDeferred is called, at which time everything in the queue will be run in the order it was added.
 
setImageOpacity(id, opacity)
 
 
setMapType(type)
Sets the imagery type for the map The type can be one of: mxn.Mapstraction.ROAD mxn.Mapstraction.SATELLITE mxn.Mapstraction.HYBRID mxn.Mapstraction.PHYSICAL
 
setOption(sOptName, vVal)
Sets an option and applies it.
 
setOptions(oOpts)
Sets the current options to those specified in oOpts and applies them
 
setZoom(zoom)
Sets the zoom level for the map MS doesn't seem to do zoom=0, and Gg's sat goes closer than it's maps, and MS's sat goes closer than Y!'s TODO: Mapstraction.prototype.getZoomLevels or something.
 
swap(api, element)
Change the current api on the fly
 
toggleFilter(field, operator, value)
Delete the current filter if present; otherwise add it
 
Turns a Tile Layer on or off
 
Sets the center and zoom of the map to the smallest bounding box containing all visible markers and polylines will only include markers and polylines with an attribute of "visible"
Event Summary
Event Attributes Event Name and Description
 
Zoom is changed
 
Map is clicked {location: LatLonPoint}
 
Map is panned
 
load()
Map has loaded
 
Marker is added {marker: Marker}
 
Marker is removed {marker: Marker}
 
Polyline is added {polyline: Polyline}
 
Polyline is removed {polyline: Polyline}
Class Detail
mxn.Mapstraction(element, api, debug)
Mapstraction instantiates a map with some API choice into the HTML element given
Parameters:
{String} element
The HTML element to replace with a map
{String} api
The API to use, one of 'google', 'googlev3', 'yahoo', 'microsoft', 'openstreetmap', 'multimap', 'map24', 'openlayers', 'mapquest'. If omitted, first loaded provider implementation is used.
{Bool} debug
optional parameter to turn on debug support - this uses alert panels for unsupported actions
Field Detail
api
The name of the active API.

currentElement
The DOM element containing the map.

element
The original element value passed to the constructor.

markers
The markers currently loaded.

options
Options defaults.

polylines
The polylines currently loaded.
Method Detail
addControls(args)
addControls adds controls to the map. You specify which controls to add in the associative array that is the only argument. addControls can be called multiple time, with different args, to dynamically change controls. args = { pan: true, zoom: 'large' || 'small', overview: true, scale: true, map_type: true, }
Parameters:
{array} args
Which controls to switch on

addEventListener(type, func, caller)
Add a listener for an event.
Parameters:
{String} type
Event type to attach listener to
{Function} func
Callback function
{Object} caller
Callback object

addFilter(name, presently, the)
addFilter adds a marker filter
Parameters:
{field} name
of attribute to filter on
{operator} presently
only "ge" or "le"
{value} the
value to compare against

addImageOverlay(unique, url, opacity, west, south, east, north)
addImageOverlay layers an georeferenced image over the map
Parameters:
{id} unique
DOM identifier
{src} url
of image
{opacity} opacity
0-100
{west} west
boundary
{south} south
boundary
{east} east
boundary
{north} north
boundary

addJSON(json)
Parameters:
json

addLargeControls()
Adds a large map panning control and zoom buttons to the map

addMapTypeControls()
Adds a map type control to the map (streets, aerial imagery etc)

addMarker(marker, old)
Adds a marker pin to the map
Parameters:
{Marker} marker
The marker to add
{Boolean} old
If true, doesn't add this marker to the markers array. Used by the "swap" method

addMarkerWithData(marker, data)
addMarkerWithData will addData to the marker, then add it to the map
Parameters:
{Marker} marker
The marker to add
{Object} data
A data has to add

addOverlay(url, autoCenterAndZoom)
Adds a GeoRSS or KML overlay to the map some flavors of GeoRSS and KML are not supported by some of the Map providers
Parameters:
{String} url
GeoRSS or KML feed URL
{Boolean} autoCenterAndZoom
Set true to auto center and zoom after the feed is loaded

addPolyline(polyline, old)
Add a polyline to the map
Parameters:
{Polyline} polyline
The Polyline to add to the map
{Boolean} old
If true replaces an existing Polyline

addPolylineWithData(polyline, data)
addPolylineWithData will addData to the polyline, then add it to the map
Parameters:
{Polyline} polyline
The polyline to add
{Object} data
A data has to add

addSmallControls()
Adds a small map panning control and zoom buttons to the map

addTileLayer(template, opacity, copyright, Minimum, Maximum, Should)
Adds a Tile Layer to the map Requires providing a parameterized tile url. Use {Z}, {X}, and {Y} to specify where the parameters should go in the URL. For example, the OpenStreetMap tiles are: m.addTileLayer("http://tile.openstreetmap.org/{Z}/{X}/{Y}.png", 1.0, "OSM", 1, 19, true);
Parameters:
{tile_url} template
url of the tiles.
{opacity} opacity
of the tile layer - 0 is transparent, 1 is opaque. (default=0.6)
{copyright_text} copyright
text to use for the tile layer. (default=Mapstraction)
{min_zoom} Minimum
(furtherest out) zoom level that tiles are available (default=1)
{max_zoom} Maximum
(closest) zoom level that the tiles are available (default=18)
{map_type} Should
the tile layer be a selectable map type in the layers palette (default=false)

applyFilter(o, f)
Parameters:
o
f

applyOptions()
Applies the current option settings

autoCenterAndZoom()
Sets the center and zoom of the map to the smallest bounding box containing all markers and polylines

callEventListeners(sEventType, oEventArgs)
Call listeners for a particular event.
Parameters:
{String} sEventType
Call listeners of this event type
{Object} oEventArgs
Event args object to pass back to the callback

centerAndZoomOnPoints(points)
centerAndZoomOnPoints sets the center and zoom of the map from an array of points This is useful if you don't want to have to add markers to the map
Parameters:
points

clickHandler(lat, lon, me)
Parameters:
lat
lon
me

declutterMarkers(opts)
Declutter the markers on the map, group together overlapping markers.
Parameters:
{Object} opts
Declutter options

{Int} doFilter(showCallback, hideCallback)
doFilter executes all filters added since last call Now supports a callback function for when a marker is shown or hidden
Parameters:
{Function} showCallback
{Function} hideCallback
Returns:
{Int} count of visible markers

dragging(on)
Enable/disable dragging of the map
Parameters:
{Boolean} on
Deprecated:
Use setOption instead.

enableScrollWheelZoom()
Enable scroll wheel zooming
Deprecated:
Use setOption instead.

{array} getAttributeExtremes(name)
getAttributeExtremes returns the minimum/maximum of "field" from all markers
Parameters:
{field} name
of "field" to query
Returns:
{array} of minimum/maximum

{BoundingBox} getBounds()
Gets the BoundingBox of the map
Returns:
{BoundingBox} The bounding box for the current map state

{LatLonPoint} getCenter()
Gets the central point of the map
Returns:
{LatLonPoint} The center point of the map

getMap()
getMap returns the native map object that mapstraction is talking to
Returns:
the native map object mapstraction is using

{Number} getMapType()
Gets the imagery type for the map. The type can be one of: mxn.Mapstraction.ROAD mxn.Mapstraction.SATELLITE mxn.Mapstraction.HYBRID mxn.Mapstraction.PHYSICAL
Returns:
{Number}

{Float} getPixelRatio()
Returns a ratio to turn distance into pixels based on current projection
Returns:
{Float} ratio

{Integer} getZoom()
Returns the zoom level of the map
Returns:
{Integer} The zoom level of the map

{Integer} getZoomLevelForBoundingBox(bbox)
Returns the best zoom level for bounds given
Parameters:
{BoundingBox} bbox
The bounds to fit
Returns:
{Integer} The closest zoom level that contains the bounding box

isLoaded(api)
Returns the loaded state of a Map Provider
Parameters:
{String} api
Optional API to query for. If not specified, returns state of the originally created API

mousePosition(element)
Displays the coordinates of the cursor in the HTML element
Parameters:
{String} element
ID of the HTML element to display the coordinates in

moveendHandler(me)
Parameters:
me

polylineCenterAndZoom(padding)
Automatically sets center and zoom level to show all polylines
Parameters:
{Number} padding
Optional number of kilometers to pad around polyline

removeAllFilters()
removeAllFilters

removeAllMarkers()
removeAllMarkers removes all the Markers on a map

removeAllPolylines()
Removes all polylines from the map

removeFilter(field, operator, value)
Remove the specified filter
Parameters:
{Object} field
{Object} operator
{Object} value

removeMarker(marker)
removeMarker removes a Marker from the map
Parameters:
{Marker} marker
The marker to remove

removePolyline(polyline)
Remove the polyline from the map
Parameters:
{Polyline} polyline
The Polyline to remove from the map

resizeTo(width, height)
Resize the current map to the specified width and height (since it is actually on a child div of the mapElement passed as argument to the Mapstraction constructor, the resizing of this mapElement may have no effect on the size of the actual map)
Parameters:
{Integer} width
The width the map should be.
{Integer} height
The width the map should be.

runDeferred()
Run any queued provider API calls for the methods defined in the provider's implementation. For example, if defferable in mxn.[provider].core.js is set to {getCenter: true, setCenter: true} then any calls to map.setCenter or map.getCenter will be queued up in this.onload. When the provider's implementation loads the map, it calls this.runDeferred and any queued calls will be run.

setBounds(bounds)
Sets the map to the appropriate location and zoom for a given BoundingBox
Parameters:
{BoundingBox} bounds
The bounding box you want the map to show

setCenter(point, options)
setCenter sets the central point of the map
Parameters:
{LatLonPoint} point
The point at which to center the map
{Object} options
Optional parameters
{Boolean} options.pan
Whether the map should move to the locations using a pan or just jump straight there

setCenterAndZoom(point, zoom)
Centers the map to some place and zoom level
Parameters:
{LatLonPoint} point
Where the center of the map should be
{Integer} zoom
The zoom level where 0 is all the way out.

setDebug(debug)
Set the debugging on or off - shows alert panels for functions that don't exist in Mapstraction
Parameters:
{Boolean} debug
true to turn on debugging, false to turn it off

setDefer(set)
Set the api call deferment on or off - When it's on, mxn.invoke will queue up provider API calls until runDeferred is called, at which time everything in the queue will be run in the order it was added.
Parameters:
{Boolean} set
deferred to true to turn on deferment

setImageOpacity(id, opacity)
Parameters:
id
opacity

setImagePosition(id)
Parameters:
id

setMapType(type)
Sets the imagery type for the map The type can be one of: mxn.Mapstraction.ROAD mxn.Mapstraction.SATELLITE mxn.Mapstraction.HYBRID mxn.Mapstraction.PHYSICAL
Parameters:
{Number} type

setOption(sOptName, vVal)
Sets an option and applies it.
Parameters:
{String} sOptName
Option name
vVal
Option value

setOptions(oOpts)
Sets the current options to those specified in oOpts and applies them
Parameters:
{Object} oOpts
Hash of options to set

setZoom(zoom)
Sets the zoom level for the map MS doesn't seem to do zoom=0, and Gg's sat goes closer than it's maps, and MS's sat goes closer than Y!'s TODO: Mapstraction.prototype.getZoomLevels or something.
Parameters:
{Number} zoom
The (native to the map) level zoom the map to.

swap(api, element)
Change the current api on the fly
Parameters:
{String} api
The API to swap to
element

toggleFilter(field, operator, value)
Delete the current filter if present; otherwise add it
Parameters:
{Object} field
{Object} operator
{Object} value

toggleTileLayer(url)
Turns a Tile Layer on or off
Parameters:
{tile_url} url
of the tile layer that was created.

visibleCenterAndZoom()
Sets the center and zoom of the map to the smallest bounding box containing all visible markers and polylines will only include markers and polylines with an attribute of "visible"
Event Detail
changeZoom()
Zoom is changed

click()
Map is clicked {location: LatLonPoint}

endPan()
Map is panned

load()
Map has loaded

markerAdded()
Marker is added {marker: Marker}

markerRemoved()
Marker is removed {marker: Marker}

polylineAdded()
Polyline is added {polyline: Polyline}

polylineRemoved()
Polyline is removed {polyline: Polyline}

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