I want to display layers with QQgis server, but the group layer doesn't get displayed, instead I get a bad request response from the server :
the request : http://myserver/cgi-bin/91589/qgis_mapserv.fcgi?SERVICE=WFS&VERSION=2.0&REQUEST=GetFeature&typename=94043_CADASTRE&SRSNAME=EPSG:2154&OUTPUTFORMAT=GeoJSON
<pre>
<ServiceExceptionReport xmlns="http://www.opengis.net/ogc" version="1.2.0">
<ServiceException code="RequestNotWellFormed">TypeName '94043_CADASTRE' unknown</ServiceException>
</ServiceExceptionReport>
</pre>
And here is a peek at the layer section in Qgis :
WFS services do not have any concept of layer groups which are a purely WMS feature.
You should either use a WMS request or request each layer separately with the WFS.
Related
According to the autodeskissue.pngautodeskissue.png is from the ‘https://forge.autodesk.com/en/docs/acc/v1/reference/http/issues-issue-types-GET/’, as the photo shown there is ‘subtypes’ data in the response, but my response come from ‘my.png’my.png, there is no ‘subtypes’, so I wondering the issue is it still in beta mode, or is it I doing wrong?
To get subtypes, you need to add the query parameters include=subtypes. e.g.
https://developer.api.autodesk.com/construction/issues/v1/projects/:projectId/issue-types?include=subtypes
I want to use viewer API in a completely private network, do you have any problems in this case?
Requests throw when using loadModel
Well it depends what you mean by 'complete private network'
if you want to use the viewer by storing the translation results (svf bubbles) on you network, and serving bubbles' files from one of your server, then it is ok (we call this offline viewing) - then you also need to copy the viewer javascript files on your server to do that. We got an example to do this at: https://extract.autodesk.io/ and source code at: https://github.com/cyrillef/extract.autodesk.io
if you want to do something different from what I wrote above, you would need to contact us # forge.help#autodesk.com and explain in more details what you want to do
i believe that in google API version 2, it could eventually call this method out. Moreover they do share or happen to be using the same type of coding.
However in version 3, i could not set this layer to the map neither via "layer.setMap(map)" because this esri method does not has this function , nor "map.addOverlay(layer)" because this function belongs to version 2 which has been taken down. can i ask what is the method replacing "map.addOverlay(layer)" in version 3. i have try using custom overlay function, but is comes out as a image which doesn't match the result i want.
** take note : ArcGISDynamicMapServiceLayer is to call a time aware data layer from esri
Have a look at these examples:
http://gmaps-utility-gis.googlecode.com/svn/trunk/arcgislink/docs/examples.html
I'm trying to add WMS layer from remote ArcGIS server to my GWT web app. I'm using gwt-openlayers library.
My code:
MapOptions defaultMapOptions = new MapOptions();
mapWidget = new MapWidget("100%", "100%", defaultMapOptions);
Map map = mapWidget.getMap();
//gNormal = new GoogleV3("Google Normal", gOptions);
//map.addLayer(gNormal);
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("1");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setProjection("EPSG:3857"); // is it correct setting for WMS layer?
// wmsLayerParams.setProjection("EPSG:102113");
// wmsLayerParams.setProjection("EPSG:4326");
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "sampleserver1.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer";
arcGis = new WMS("ArcGis", wmsUrl, wmsParams);
map.addLayer(arcGis);
map.setBaseLayer(arcGis);
LonLat lonLat = new LonLat(-84.1,36.4); //USA
lonLat.transform("EPSG:4326", map.getProjection());
//System.out.println("map projection "+map.getProjection());
map.setCenter(lonLat, 3);
add(mapWidget);
I read many articles and SO questions but I still can't solve the problem. My problem is rendering pink tiles on the map instead of normal image. I copied image url as many stackoverflow answers suggested and saw the following:
http://localhost:8084/sampleserver1.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer?FORMAT=image%2Fpng&LAYERS=1&STYLES=&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A4326&BBOX=-135,45,-90,90&WIDTH=256&HEIGHT=256
Without localhost:8084 prefix url works fine and shows me small piece of map.
Questions:
1) How get rid from localhost prefix in WMS url? In my code wmsUrl look like sampleserver1... so it's correct. It seems my application adds it's root path to remote url.
2) I read that WMS layers should have the following projection - "EPSG:3857". Is it true? As i mentioned above when I manually put in the browser correct url without "localhost" prefix I saw some image but I'm not sure it's correct. Probably image is shifted.
3) My final goal is adding 2 layers to the map - Google Map layer and WMS layer. Google Map uses "EPSG:900913" as default projection. Could somebody give common tips to place google layer and WMS layer in one map. May be there are some tricks, common mistakes related to projections an so on.
In the wmsUrl variable, you are missing the "http://", that may help.
Pink tiles generally mean that the data source was not found, so this is where you should look for the problem. Try checking the wms URL you are supplying in a wms viewer (e.g. ArcGIS Explorer ).
To your questions:
1)try just adding the http:// to your url, without the localhost
2)A WMS layer can have any projection, it depends solely on the projection in which it was published. Information about a specific WMS's projection should be found in metadata.
3)If the two layers have the same projection, you do not need to do anything. If you want to use two layers in different projections in one map, one of the layers must be reprojected. In pure OpenLayers, this is done by specifying the projection parameter for each layer and then specifying the displayProjection parameter for the map. The layers will automatically be reprojected. However, reprojection takes some time and it increases the load time VERY significantly. It is better to avoid reprojection on-the-fly, if possible. You can either reproject the source data of one of the layers and use reprojected data. Of course, this is not possible for a WMS, so you should consider using a different data source. If you want a background map, you can donwload OpenStreetMap data, reproject them to your desired projection, and then use them with the other WMS you want to use.
Hope at least some of this helps :-)
Suppose I have a route defined from one town to another. From the Google Maps API I can recover a route between the two. However, the route returned from Google is a driving route that includes geo-coordinates only at places where there is another step in a leg (for example, where I have to turn from one highway to another).
What I need is geo-locations (lat/long) along the entire route, at specific intervals (for example, every 1/4 mile or 100m).
Is there a way to accomplish this via the Google Maps API / web services?
Or would the OpenStreetMap database be the way to do it?
Kind regards,
Madeleine.
OSRM gives you routes with road geometries as they are in the OpenStreetMap database. For example, you can get the route as GPX (and post-process this file if you want). This would look like the following:
GET http://router.project-osrm.org/viaroute?hl=en&loc=47.064970,15.458470&loc=47.071100,15.476760&output=gpx
Read more: OSRM API docs.
Since the accepted answer is outdated and does not work anymore, here is how all nodes along a road can be queried using the route service from Project OSRM.
Given an arbitrary number of lon,lat pairs.
For Instance the following three (in Berlin):
13.388860,52.517037
13.397634,52.529407
13.428555,52.523219
The route-service calculates the fastest route between these points and its possible to return all nodes along the road using the following query:
http://router.project-osrm.org/route/v1/driving/13.388860,52.517037;13.397634,52.529407;13.428555,52.523219?alternatives=false&annotations=nodes
This returns a json response containing node IDs of all the nodes along the route. The result should look something like this:
{
"routes": [
{
...
"legs": [
{
"annotation": {
"nodes": [
2264199819,
2045820592,
21487242,
...
]
}
To receive the lat,lon coordinates of the nodes OverpassAPI can be used.
[out:json];
(
node(264199819);
node(...);
node(...);
...
);
(._;>;);
out;
Here is a sample request using overpass-turbo: http://overpass-turbo.eu/s/toe
It's simply google.maps.DirectionsService().route() method. You need to pass the service request and then a callback which executes upon completion of the service request.
https://developers.google.com/maps/documentation/javascript/directions
While not used as API, here: https://www.nmeagen.org/ one can create "Multi-point line", set the distance between points and download route (coordinates) as CSV.
Adding to the Marlio's answer.
You can use Google Maps Directions API itself.
For a given origin and destination, in the JSON output, look for following:
"polyline" : {
"points" : ""
}
You can use a decoder to get the coordinates from the polyline.:
https://github.com/emcconville/google-map-polyline-encoding-tool
Or. you can use the googleway package in R to decode the same.
https://cran.r-project.org/web/packages/googleway/googleway.pdf
I am not sure how to set the resolution to your desired level though.But the resolution in the API output is really good.