I am loading a google map into qgis 3.6. I don't want to see the lastest map, but (if it exists) I want to load an older map, that I have seen in google earth. Is there a way to make the choice?
when I load an xyz tile I use this reference (for google satellite):
https://mt1.google.com/vt/lyrs=s&x={x}&y={y}&z={z}
Is there some attribute I can add or modify to the link? Thank you!
Related
I use a Mapbox dataset converted to a tileset to show features on a map. I would like to add a search facility which goes through all the features in the dataset (not only the one shown on the screen which I could search locally thanks to queryRenderedFeatures).
I do not see how to do this without implementing my own search facility server side. I would like to avoid that because it would mean my dataset needs to be stored at two different places (on Mapbox and on my server).
In this related question, someone suggested to use querySourceFeatures but it only checks features in the currently visible viewport.
Did I miss any search through dataset facility offered by Mapbox ?
You could use the Datasets API to download you whole GeoJSON dataset to the client, then using the mapbox-gl-geocoder's localGeocoder option implement you own custom search.
Is it possible to download OSM or embed OSM and use leafletjs on top of it to display heat map?
I have searched a lot and could not find anything related. I wanted something like this form Google Maps.
https://developers.google.com/maps/documentation/javascript/examples/layer-heatmap
I did find the mapbox but we need to pay them. I need something open source.
Please suggest me.
You can create heatmaps with Leaflet by using the various available plugins:
http://leafletjs.com/plugins.html#heatmaps
However, you'll need some vector data to build a heatmap, not just the tilelayer. If you want to use OpenStreetMap to get your data, try a service like http://overpass-turbo.eu/ to download the things you want in this format.
I have integrated offline maps into my project with the help of route-me sample app (https://github.com/route-me/route-me). But my client wants to show topographical type of map as the open street map. I have searched over the internet, couldn't find any helpful resources.
Do you know any resources I should follow to implement this feature?
Should I have to use another way of implement the Open Street Maps in
order to get the topographic type of map?
You should maybe have a look at mapbox.com and their map tool (TileMill) which allow you to add and customize your own layers.
As for the topographic data needed to create your layers, you should be able to find some on websites like http://www.naturalearthdata.com/.
I just want to build a drill down map like this - Drill Down Map
Here I want to show some data on tapping of each regions.I am out of clue. How can I ? What should I use ? From where to start ?
EDIT : In the link it's showing the country name on mouse over, instead of that I want to show some data/info of the country on touch. Please visit the map shown in the link,you'll get the whole idea.
Thanks !!
If you want total control on the map layout, and be able to check which country the users taps, there's no secret : you need to have boundaries of all countries you want to detect.
Here's the global approach I would use to reimplement something that looks like the map you linked to (I can you into more details if you want, but at first, here's the global approach) :
Get the data of the boundaries of the countries you need. This can be done using OpenStreetMap.org data.
[EDIT] I just came accross this website to download countries boundaries as files you can then use with tilemill : http://www.gadm.org/country
Use this data with tilemill (http://mapbox.com/tilemill/) : this tool is able to design maps using a language that looks like CSS but dedicated for maps. The results is great and the tool great as well. This tool also support shapes files, so if you can get the countries boundaries as shapefiles, you'll be able to use them with tilemill, and this will be easier than using .osm files from open street map). Have a look here http://mapbox.com/tilemill/data/ for the supported formats.
Then, with tilemill, export your map as an MBTile file (this file contains all tiles needed to get the map rendered at different zoom levels).
Use the route-me project to display the resulting MBTile file (in its latest version, route-me is able to do that, this feature has been implemented by the mapbox team to support their open format MBTile).
Guys from Mapbox have published a good tutorial "from data to maps" here : http://mapbox.com/demo/making_massredistrict/ this may help as well
Your best bet is to use CloudMade ( http://cloudmade.com/ ). They provide custom map builders program where you can build custom maps and can integrate those maps in your iOS app.
Depends what you are looking for. To implement the linked example it's enough with a giant image that you can split in tiles using CATiledLayer. You'll find examples if you google a little, PhotoScroller is one. If you want to display real maps you have to investigate the route me project.
I don't think that using images could be good option.Check this link - arcgis-iphone api. I am not so sure but you can get some idea from this.
Happy to help..
how to download cloudmade map tiles? i have to download tiles with different zoom levels? how save these tiles to database for later loading? any sample code available? any help is appreciated..
There are different options available to you.
First, you can use the Javascript "Web Maps API". This is useful if you are wanting to show the maps on a website. It will download the required tiles and display them appropriately, and give you the interface to pan and zoom the map. See their pages at http://developers.cloudmade.com/projects/show/web-maps-api
Second option is if you want to access the map tiles directly. They call it their HTTP Maps API. You will need to make the calcuations of which tiles to download, how to arrange them etc for your own application. Have a look at http://developers.cloudmade.com/projects/show/tiles
Finally, although you don't mention it in your question, I see the question is tagged with "iphone" and other related things. Perhaps you want to look at their iPhone SDK, which is similar to the Web Maps API. See http://www.developers.cloudmade.com/wiki/iphone-sdk/Examples for examples on how to use it.