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|Pack weblog -- prolog/info/maps/google/gmap.pl|
A (for now) rudimentary google maps component.
This code provided to weblog by Cliopatria project Licensed under LGPL
Do not call this directly, call it through geo_map and
provider(google) (or do nothing, google is the default)
Generator is an arity n term that corresponds to an arity n+1 predicate.
gmap//1 will repeatedly query Generator for information and build up the map. The final argument may be
zoom(Zoom)The zoom level. Provider specific how this maps to a viewport. Default 14
center(Lat, Long)center map view here. defaults to average of points
point(-Lat, -Long)A marker will be placed at this point
icon_for(+point(Lat, Long), -IconName)icon to use for this point. default is provider default icon
popup_for(-HTML, +point(Lat, Long))termerized HTML to put in popup
tooltip_for(+point(Lat, Long), -ToolTipText)contents of tooltip
maptype(-Type)only meaningful for google maps, is the constant for google.maps.MapTypeId (one of 'HYBRID', 'ROADMAP', 'SATELLITE', 'TERRAIN')
Defining icon types means binding an icon/3 for each type, then binding all the properties
icon(-Name, -ImageSource, -ShadowSource)Defines an icon type name.
Defining an icon requires that the following be defined for each icon type name:
icon_size(+Name, X, Y)size of icon image
shadow_size(+Name, X, Y)size of shadow image
icon_anchor(+Name, X, Y)offset from UL of image to the point touching the spot on the map
shadow_anchor(+Name, X, Y)offset from UL of shadow image to the point touching the spot on map
popup_anchor(+Name, X, Y)offset from the point touching map to where the popup appears (so, eg, Y coord is often negative)