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Merge branch 'improve-geojson'

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This commit is contained in:
Vladimir Agafonkin 2012-08-06 13:34:22 +03:00
commit c18c394147
7 changed files with 252 additions and 67 deletions
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10
CHANGELOG.md
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@ -7,8 +7,18 @@ Leaflet Changelog
An in-progress version being developed on the master branch.
### Improvements
* Improved `GeoJSON` `setStyle` to also accept function (like the corresponding option).
* Added `GeoJSON` `resetStyle(layer)`, useful for resetting hover state.
* Added `feature` property to layers created with `GeoJSON` (containing the GeoJSON feature data).
* Added `FeatureGroup` `bringToFront` and `bringToBack` methods (so that they would work for multipolys).
* Added optional `animate` argument to `Map` `invalidateSize` (by [@ajbeaven](https://github.com/ajbeaven)). [#857](https://github.com/CloudMade/Leaflet/pull/857)
### Bugfixes
* Fixed a bug where `Path` `bringToFront` and `bringToBack` didn't return `this`.
## 0.4.2 (August 1, 2012)
* Fixed a bug where layers control radio buttons would not work correctly in IE7 (by [@danzel](https://github.com/danzel)). [#862](https://github.com/CloudMade/Leaflet/pull/862)

155
debug/vector/geojson.html
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@ -8,44 +8,155 @@
<link rel="stylesheet" href="../css/screen.css" />
<style>
#map {
width: 800px;
height: 500px;
}
.info {
padding: 6px 8px;
font: 14px/16px Arial, Helvetica, sans-serif;
background: white;
background: rgba(255,255,255,0.8);
box-shadow: 0 0 15px rgba(0,0,0,0.2);
border-radius: 5px;
}
.info h4 {
margin: 0 0 5px;
color: #777;
}
.legend {
text-align: left;
line-height: 18px;
color: #555;
}
.legend i {
width: 18px;
height: 18px;
float: left;
margin-right: 8px;
opacity: 0.7;
}
</style>
<script src="../leaflet-include.js"></script>
</head>
<body>
<div id="map" style="width: 600px; height: 600px; border: 1px solid #ccc"></div>
<button id="populate">Populate with 10 markers</button>
<div id="map"></div>
<script type="text/javascript" src="geojson-sample.js"></script>
<script type="text/javascript" src="us-states.js"></script>
<script type="text/javascript">
var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/BC9A493B41014CAABB98F0471D759707/997/256/{z}/{x}/{y}.png',
cloudmadeAttribution = 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttribution});
var map = L.map('map').setView([37.8, -96], 4);
var map = new L.Map('map', {
center: new L.LatLng(0.78, 102.37),
zoom: 7,
layers: [cloudmade]
});
var cloudmade = L.tileLayer('http://{s}.tile.cloudmade.com/{key}/{styleId}/256/{z}/{x}/{y}.png', {
attribution: 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
key: 'BC9A493B41014CAABB98F0471D759707',
styleId: 998
}).addTo(map);
var geojson = L.geoJson(geojsonSample, {
style: function (feature) {
return {color: feature.properties.color};
// control that shows state info on hover
var info = L.Util.extend(L.control(), {
onAdd: function (map) {
this._div = L.DomUtil.create('div', 'info');
this.update();
return this._div;
},
onEachFeature: function (feature, layer) {
var popupText = 'geometry type: ' + feature.geometry.type;
update: function (props) {
this._div.innerHTML = '<h4>US Population Density</h4>' + (props ?
'<b>' + props.name + '</b><br />' + props.density + ' people / mi<sup>2</sup>'
: 'Hover over a state');
}
if (feature.properties.color) {
popupText += '<br/>color: ' + feature.properties.color
}).addTo(map);
// get color depending on population density value
function getColor(d) {
return d > 1000 ? '#800026' :
d > 500 ? '#BD0026' :
d > 200 ? '#E31A1C' :
d > 100 ? '#FC4E2A' :
d > 50 ? '#FD8D3C' :
d > 20 ? '#FEB24C' :
d > 10 ? '#FED976' :
'#FFEDA0';
}
function style(feature) {
return {
weight: 2,
opacity: 1,
color: 'white',
dashArray: '3',
fillOpacity: 0.7,
fillColor: getColor(feature.properties.density)
};
}
function highlightFeature(e) {
var layer = e.target;
layer.bringToFront().setStyle({
weight: 5,
color: '#666',
dashArray: '',
fillOpacity: 0.7
});
info.update(layer.feature.properties);
}
var geojson;
function resetHighlight(e) {
geojson.resetStyle(e.target);
info.update();
}
function zoomToFeature(e) {
map.fitBounds(e.target.getBounds());
}
function onEachFeature(feature, layer) {
layer.on({
mouseover: highlightFeature,
mouseout: resetHighlight,
click: zoomToFeature
});
}
geojson = L.geoJson(statesData, {
style: style,
onEachFeature: onEachFeature
}).addTo(map);
// legend control
L.Util.extend(L.control({position: 'bottomright'}), {
onAdd: function (map) {
var div = L.DomUtil.create('div', 'info legend'),
grades = [0, 10, 20, 50, 100, 200, 500, 1000],
labels = [];
for (var i = 0; i < grades.length; i++) {
labels.push('<i style="background:' + getColor(grades[i] + 1) + '"></i> ' +
grades[i] + (grades[i + 1] ? '&ndash;' + grades[i + 1] : '+'));
}
layer.bindPopup(popupText);
div.innerHTML = labels.join('<br>');
return div;
}
});
map.addLayer(geojson);
}).addTo(map);
</script>
</body>
</html>

54
debug/vector/us-states.js Normal file
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8
src/layer/FeatureGroup.js
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@ -42,6 +42,14 @@ L.FeatureGroup = L.LayerGroup.extend({
return this.invoke('setStyle', style);
},
bringToFront: function () {
return this.invoke('bringToFront');
},
bringToBack: function () {
return this.invoke('bringToBack');
},
getBounds: function () {
var bounds = new L.LatLngBounds();
this.eachLayer(function (layer) {

37
src/layer/GeoJSON.js
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@ -20,27 +20,42 @@ L.GeoJSON = L.FeatureGroup.extend({
return this;
}
var options = this.options,
style = options.style;
var options = this.options;
if (options.filter && !options.filter(geojson)) { return; }
var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer);
layer.feature = geojson;
if (style) {
if (typeof style === 'function') {
style = style(geojson);
}
if (layer.setStyle) {
layer.setStyle(style);
}
}
this.resetStyle(layer);
if (options.onEachFeature) {
options.onEachFeature(geojson, layer);
}
return this.addLayer(layer);
},
resetStyle: function (layer) {
var style = this.options.style;
if (style) {
this._setLayerStyle(layer, style);
}
},
setStyle: function (style) {
this.eachLayer(function (layer) {
this._setLayerStyle(layer, style);
}, this);
},
_setLayerStyle: function (layer, style) {
if (typeof style === 'function') {
style = style(layer.feature);
}
if (layer.setStyle) {
layer.setStyle(style);
}
}
});
@ -118,4 +133,4 @@ L.Util.extend(L.GeoJSON, {
L.geoJson = function (geojson, options) {
return new L.GeoJSON(geojson, options);
};
};

2
src/layer/vector/Path.SVG.js
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@ -11,6 +11,7 @@ L.Path = L.Path.extend({
if (this._container) {
this._map._pathRoot.appendChild(this._container);
}
return this;
},
bringToBack: function () {
@ -18,6 +19,7 @@ L.Path = L.Path.extend({
var root = this._map._pathRoot;
root.insertBefore(this._container, root.firstChild);
}
return this;
},
getPathString: function () {

53
src/map/anim/Map.ZoomAnimation.js
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@ -2,11 +2,16 @@ L.Map.mergeOptions({
zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera
});
L.Map.addInitHook(function () {
L.DomEvent.on(this._mapPane, L.Transition.END, this._catchTransitionEnd, this);
});
L.Map.include(!L.DomUtil.TRANSITION ? {} : {
_zoomToIfClose: function (center, zoom) {
if (this._animatingZoom) { return true; }
if (!this.options.zoomAnimation) { return false; }
var scale = this.getZoomScale(zoom),
@ -21,7 +26,7 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
.fire('movestart')
.fire('zoomstart');
this._prepareTileBg();
this._animatingZoom = true;
this.fire('zoomanim', {
center: center,
@ -30,15 +35,19 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
var origin = this._getCenterLayerPoint().add(offset);
this._prepareTileBg();
this._runAnimation(center, zoom, scale, origin);
return true;
},
_catchTransitionEnd: function (e) {
if (this._animatingZoom) {
this._onZoomTransitionEnd();
}
},
_runAnimation: function (center, zoom, scale, origin, backwardsTransform) {
this._animatingZoom = true;
this._animateToCenter = center;
this._animateToZoom = zoom;
@ -52,29 +61,14 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
tileBg.style[transform] += ' translate(0,0)';
}
var scaleStr;
// Android 2.* doesn't like translate/scale chains, transformOrigin + scale works better but
// it breaks touch zoom which Anroid doesn't support anyway, so that's a really ugly hack
// TODO work around this prettier
if (L.Browser.android23) {
tileBg.style[transform + 'Origin'] = origin.x + 'px ' + origin.y + 'px';
scaleStr = 'scale(' + scale + ')';
} else {
scaleStr = L.DomUtil.getScaleString(scale, origin);
}
L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation
var options = {};
if (backwardsTransform) {
options[transform] = tileBg.style[transform] + ' ' + scaleStr;
} else {
options[transform] = scaleStr + ' ' + tileBg.style[transform];
}
var scaleStr = L.DomUtil.getScaleString(scale, origin),
oldTransform = tileBg.style[transform];
tileBg.transition.run(options);
tileBg.style[transform] = backwardsTransform ?
oldTransform + ' ' + scaleStr :
scaleStr + ' ' + oldTransform;
},
_prepareTileBg: function () {
@ -82,8 +76,7 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
tileBg = this._tileBg;
// If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more
// (disable this for Android due to it not supporting double translate)
if (!L.Browser.android23 && tileBg &&
if (tileBg &&
this._getLoadedTilesPercentage(tileBg) > 0.5 &&
this._getLoadedTilesPercentage(tilePane) < 0.5) {
@ -110,14 +103,7 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
this._tilePane = this._panes.tilePane = tileBg;
var newTileBg = this._tileBg = tilePane;
if (!newTileBg.transition) {
// TODO move to Map options
newTileBg.transition = new L.Transition(newTileBg, {
duration: 0.25,
easing: 'cubic-bezier(0.25,0.1,0.25,0.75)'
});
newTileBg.transition.on('end', this._onZoomTransitionEnd, this);
}
L.DomUtil.addClass(newTileBg, 'leaflet-zoom-animated');
this._stopLoadingImages(newTileBg);
},
@ -154,7 +140,6 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : {
_onZoomTransitionEnd: function () {
this._restoreTileFront();
L.Util.falseFn(this._tileBg.offsetWidth); // force reflow
this._resetView(this._animateToCenter, this._animateToZoom, true, true);