Geolocation 将标记从SQL数据库添加到OSM
我是OpenStreetMap的新手，我一直在浏览wiki和网络，似乎在任何地方都找不到教程，但我在网上看到了一些例子 基本上，我想生成自己的OpenStreetmap和绘图标记，从MySQL数据库中获取纬度和经度，并在地图上绘图。当用户点击一个标记时，我想弹出一个窗口。基本上，我想要的是OpenStreetMap，而不是Google地图。看起来他们正在使用地图渲染。下面是一些示例和api文档 看起来它们正在用于地图渲染。下面是一些示例和api文档Geolocation 将标记从SQL数据库添加到OSM,geolocation,openstreetmap,Geolocation,Openstreetmap,我是OpenStreetMap的新手，我一直在浏览wiki和网络，似乎在任何地方都找不到教程，但我在网上看到了一些例子 基本上，我想生成自己的OpenStreetmap和绘图标记，从MySQL数据库中获取纬度和经度，并在地图上绘图。当用户点击一个标记时，我想弹出一个窗口。基本上，我想要的是OpenStreetMap，而不是Google地图。看起来他们正在使用地图渲染。下面是一些示例和api文档 看起来它们正在用于地图渲染。下面是一些示例和api文档 要实现这一点，您需要找出在“slippy
要实现这一点，您需要找出在“slippy map”界面上显示标记的javascript OpenLayers是一个流行的javascript库的名称。它是免费的，开源的。它被用来在OpenStreetMap.org主页和其他网站上显示一张拖沓的地图。它经常与OpenStreetMap本身相混淆，或者人们错误地认为如果你想在你的网站上嵌入OpenStreetMap地图，就必须使用OpenLayers。不是真的。有 …包括谷歌地图API！您可以设置google地图显示，但显示OpenStreetMap“平铺”图像而不是google平铺。看见这具有代码兼容性的优势，这意味着您可以按照链接到那里的google地图教程进行操作，但随后插入一段厚脸皮的代码，将OpenStreetMap指定为平铺层 这样做的缺点是显示一个巨大的邪恶谷歌徽标，并且需要一个更邪恶的谷歌地图API键，因此所有酷孩子都在使用OpenLayers 有一个。“OpenLayers Dynamic POI”示例展示了数据库对标记的使用（尽管该示例有点复杂）
希望这有助于实现这一点，您需要找出在“拖拉地图”界面上显示标记的javascript
// Sample code by August Li
// Modified by Tom Moore to work with SQL
var zoom, center, currentPopup, map, lyrMarkers;
var popupClass = OpenLayers.Class(OpenLayers.Popup.FramedCloud, {
"autoSize": true,
"minSize": new OpenLayers.Size(300, 50),
"maxSize": new OpenLayers.Size(500, 300),
"keepInMap": true
});
var bounds = new OpenLayers.Bounds();
var lat=36.287179515680556;
var lon=-96.69170379638672;
var zoom=11;
var lonLat = new OpenLayers.LonLat(lon, lat).transform(
new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913"));
// begin addMarker function
// info1 I was going to use to add a tooltip. Haven't figured out
// how to do that in OpenLayers yet :( Someone who knows share that with us
// iconurl is the url to the png file that you want to use for the icon.
// you MUST call addMarker at least once to initialize the map
function addMarker(lat, lng, info, info1, iconurl) {
// First check to see if the map has been initialized. If not, do that now ...
if (map == null) {
var options = {
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326"),
units: "m",
numZoomLevels: 19,
maxResolution: 156543.0339,
maxExtent: new OpenLayers.Bounds(-20037508.34, -20037508.34, 20037508.34, 20037508.34)
};
map = new OpenLayers.Map("map", options);
map.addControl(new OpenLayers.Control.PanZoomBar());
var lyrOsm = new OpenLayers.Layer.OSM();
map.addLayer(lyrOsm);
lyrMarkers = new OpenLayers.Layer.Markers("Markers");
map.addLayer(lyrMarkers);
//add marker on given coordinates
map.setCenter(lonLat, zoom);
zoom = map.getZoom();
}
var iconSize = new OpenLayers.Size(36, 36);
var iconOffset = new OpenLayers.Pixel(-(iconSize.w / 2), -iconSize.h);
var icon = new OpenLayers.Icon(iconurl, iconSize, iconOffset);
var pt = new OpenLayers.LonLat(lng, lat).transform(
new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
bounds.extend(pt);
var feature = new OpenLayers.Feature(lyrMarkers, pt);
feature.closeBox = true;
feature.popupClass = popupClass;
feature.data.popupContentHTML = info;
feature.data.overflow = "auto";
var marker = new OpenLayers.Marker(pt, icon.clone());
var markerClick = function(evt) {
if (currentPopup != null && currentPopup.visible()) {
currentPopup.hide();
}
if (this.popup == null) {
this.popup = this.createPopup(this.closeBox);
map.addPopup(this.popup);
this.popup.show();
} else {
this.popup.toggle();
}
currentPopup = this.popup;
OpenLayers.Event.stop(evt);
};
marker.events.register("mousedown", feature, markerClick);
lyrMarkers.addMarker(marker);
}
// end addMarker function
// Sample code by August Li
// Modified by Tom Moore to work with SQL
var zoom, center, currentPopup, map, lyrMarkers;
var popupClass = OpenLayers.Class(OpenLayers.Popup.FramedCloud, {
"autoSize": true,
"minSize": new OpenLayers.Size(300, 50),
"maxSize": new OpenLayers.Size(500, 300),
"keepInMap": true
});
var bounds = new OpenLayers.Bounds();
var lat=36.287179515680556;
var lon=-96.69170379638672;
var zoom=11;
var lonLat = new OpenLayers.LonLat(lon, lat).transform(
new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913"));
// begin addMarker function
// info1 I was going to use to add a tooltip. Haven't figured out
// how to do that in OpenLayers yet :( Someone who knows share that with us
// iconurl is the url to the png file that you want to use for the icon.
// you MUST call addMarker at least once to initialize the map
function addMarker(lat, lng, info, info1, iconurl) {
// First check to see if the map has been initialized. If not, do that now ...
if (map == null) {
var options = {
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326"),
units: "m",
numZoomLevels: 19,
maxResolution: 156543.0339,
maxExtent: new OpenLayers.Bounds(-20037508.34, -20037508.34, 20037508.34, 20037508.34)
};
map = new OpenLayers.Map("map", options);
map.addControl(new OpenLayers.Control.PanZoomBar());
var lyrOsm = new OpenLayers.Layer.OSM();
map.addLayer(lyrOsm);
lyrMarkers = new OpenLayers.Layer.Markers("Markers");
map.addLayer(lyrMarkers);
//add marker on given coordinates
map.setCenter(lonLat, zoom);
zoom = map.getZoom();
}
var iconSize = new OpenLayers.Size(36, 36);
var iconOffset = new OpenLayers.Pixel(-(iconSize.w / 2), -iconSize.h);
var icon = new OpenLayers.Icon(iconurl, iconSize, iconOffset);
var pt = new OpenLayers.LonLat(lng, lat).transform(
new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
bounds.extend(pt);
var feature = new OpenLayers.Feature(lyrMarkers, pt);
feature.closeBox = true;
feature.popupClass = popupClass;
feature.data.popupContentHTML = info;
feature.data.overflow = "auto";
var marker = new OpenLayers.Marker(pt, icon.clone());
var markerClick = function(evt) {
if (currentPopup != null && currentPopup.visible()) {
currentPopup.hide();
}
if (this.popup == null) {
this.popup = this.createPopup(this.closeBox);
map.addPopup(this.popup);
this.popup.show();
} else {
this.popup.toggle();
}
currentPopup = this.popup;
OpenLayers.Event.stop(evt);
};
marker.events.register("mousedown", feature, markerClick);
lyrMarkers.addMarker(marker);
}
// end addMarker function