How can i control play, Pause, Forward and Backword options in time slider of TimestampedGeojson from any other function in python. #1791
Description
In TimestampedGeoJson plugin of folium map we have options to set like auto_play of time slider. But my requirement is to control play, Pause, Forward and Backward options in time slider of TimestampedGeojson from any other function in python.
Default options are these below as all of you know.
`class TimestampedGeoJson(JSCSSMixin, MacroElement):
"""
Creates a TimestampedGeoJson plugin from timestamped GeoJSONs to append
into a map with Map.add_child.
A geo-json is timestamped if:
* it contains only features of types LineString, MultiPoint, MultiLineString,
Polygon and MultiPolygon.
* each feature has a 'times' property with the same length as the
coordinates array.
* each element of each 'times' property is a timestamp in ms since epoch,
or in ISO string.
Eventually, you may have Point features with a 'times' property being an
array of length 1.
Parameters
----------
data: file, dict or str.
The timestamped geo-json data you want to plot.
* If file, then data will be read in the file and fully embedded in
Leaflet's javascript.
* If dict, then data will be converted to json and embedded in the
javascript.
* If str, then data will be passed to the javascript as-is.
transition_time: int, default 200.
The duration in ms of a transition from between timestamps.
loop: bool, default True
Whether the animation shall loop.
auto_play: bool, default True
Whether the animation shall start automatically at startup.
add_last_point: bool, default True
Whether a point is added at the last valid coordinate of a LineString.
period: str, default "P1D"
Used to construct the array of available times starting
from the first available time. Format: ISO8601 Duration
ex: 'P1M' 1/month, 'P1D' 1/day, 'PT1H' 1/hour, and 'PT1M' 1/minute
duration: str, default None
Period of time which the features will be shown on the map after their
time has passed. If None, all previous times will be shown.
Format: ISO8601 Duration
ex: 'P1M' 1/month, 'P1D' 1/day, 'PT1H' 1/hour, and 'PT1M' 1/minute
Examples
--------
>>> TimestampedGeoJson(
... {
... "type": "FeatureCollection",
... "features": [
... {
... "type": "Feature",
... "geometry": {
... "type": "LineString",
... "coordinates": [[-70, -25], [-70, 35], [70, 35]],
... },
... "properties": {
... "times": [1435708800000, 1435795200000, 1435881600000],
... "tooltip": "my tooltip text",
... },
... }
... ],
... }
... )
See https://github.com/socib/Leaflet.TimeDimension for more information.
"""
_template = Template(
"""
{% macro script(this, kwargs) %}
L.Control.TimeDimensionCustom = L.Control.TimeDimension.extend({
_getDisplayDateFormat: function(date){
var newdate = new moment(date);
console.log(newdate);
return newdate.format("{{ this.date_options }}");
}
});
{{this._parent.get_name()}}.timeDimension = L.timeDimension(
{
period: {{ this.period|tojson }},
}
);
var timeDimensionControl = new L.Control.TimeDimensionCustom(
{{ this.options|tojson }}
);
{{this._parent.get_name()}}.addControl(this.timeDimensionControl);
var geoJsonLayer = L.geoJson({{this.data}}, {
pointToLayer: function (feature, latLng) {
if (feature.properties.icon == 'marker') {
if(feature.properties.iconstyle){
return new L.Marker(latLng, {
icon: L.icon(feature.properties.iconstyle)});
}
//else
return new L.Marker(latLng);
}
if (feature.properties.icon == 'circle') {
if (feature.properties.iconstyle) {
return new L.circleMarker(latLng, feature.properties.iconstyle)
};
//else
return new L.circleMarker(latLng);
}
//else
return new L.Marker(latLng);
},
style: function (feature) {
return feature.properties.style;
},
onEachFeature: function(feature, layer) {
if (feature.properties.popup) {
layer.bindPopup(feature.properties.popup);
}
if (feature.properties.tooltip) {
layer.bindTooltip(feature.properties.tooltip);
}
}
})
var {{this.get_name()}} = L.timeDimension.layer.geoJson(
geoJsonLayer,
{
updateTimeDimension: true,
addlastPoint: {{ this.add_last_point|tojson }},
duration: {{ this.duration }},
}
).addTo({{this._parent.get_name()}});
{% endmacro %}
"""
) # noqa
default_js = [
(
"jquery2.0.0",
"https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js",
),
(
"jqueryui1.10.2",
"https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.2/jquery-ui.min.js",
),
(
"iso8601",
"https://cdn.jsdelivr.net/npm/iso8601-js-period@0.2.1/iso8601.min.js",
),
(
"leaflet.timedimension",
"https://cdn.jsdelivr.net/npm/leaflet-timedimension@1.1.1/dist/leaflet.timedimension.min.js",
),
# noqa
(
"moment",
"https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js",
),
]
default_css = [
(
"highlight.js_css",
"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/default.min.css",
),
(
"leaflet.timedimension_css",
"file:///home/saipuligandla/Downloads/cdn.jsdelivr.net_npm_leaflet-timedimension@1.1.1_dist_leaflet.timedimension.control.css",
),
# (
# "leaflet.timedimension_css",
# "https://cdn.jsdelivr.net/npm/leaflet-timedimension@1.1.1/dist/leaflet.timedimension.control.css",
# ),
]
def __init__(
self,
data,
transition_time=1000,
loop=True,
auto_play=True,
add_last_point=True,
period="P1M",
min_speed=0.1,
max_speed=10,
loop_button=False,
date_options="hh:mm:ss",
time_slider_drag_update=False,
duration=None,
speed_slider=False,
):`