I'm attempting to upload my map as an MBTile, and it is telling me that there are thousands of days remaining, though my map does not have enormous quantities of data. I've tried several different exports, and they have not exported any of the data after several hours.
This is my first time exporting in MBTiles format, and I hope to eventually upload my information to MapBox. Is there a step that I am missing?
Best,
Make sure you are cropping and setting zoom levels.
https://www.mapbox.com/tilemill/docs/crashcourse/exporting/
Select the map “Bounds”. This is the area of the map to be exported. By default the entire world is selected. If your map is allocated to a smaller region of the globe, you can save processing time and disk space by cropping to that area.
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I need some help in generating a map.
Instead of taking one hundred screenshots of areas and trying to perfectly combine them in photoshop, I wonder if there is a script/software that can export me a big whole area with the same level of detail as I zoom-in. I assume it will be a ~50,000x50,000px image but i really don't mind.
The only thing I really tried is to take multiple screenshots and combine them but I need to work on a big canvas, program crashes or sometimes the whole project is messing up when arranging.
We have an application where we need to plot ~13K+ markers on a map depending on the users current filters. I have found that react-leaflet does not handle this many markers very well. I even offloaded all of the popup data to a separate query on popup to reduce the initial data load, but to no avail.
I did find that using clustering does help improve the performance, so I have enabled that (even though it is not in the following example code). But even with clustering, on the initial map load a user might have to wait 20 seconds for the map to render with the markers, but the actual data fetch from the GraphQL API is less than a second.
I am trying to find a way to only fetch the markers that are present within the bounding box of the page. I am doing this successfully, but the problem now is that all of the markers flash (re-render) when the map is moved/zoomed even if the new bounds is just a subset of the original.
CodeSandbox: https://codesandbox.io/s/graphql-markers-t409f?file=/src/App.js
Is there a way for react-leaflet to only re-render the markers that are new and not all the markers? I am providing the unique id of the marker from the api to the Marker component key field, but that doesn't seem to provide any improvements.
I am thinking that maybe the best way to handle it would be to do something to manage the map bounds to the min east, max west, max north, and min south and only refetch if the new bounds are outside of the currently fetched area. This along with a 10-20% over area fetch to not refetch if the map is only very slightly moved in any direction.
Note: I am not guaranteeing that this GraphQL backend will be available after the question has been answered. There is a 1Mb/Day data transfer limitation on this backend in case this question blows up and you cannot see the markers. See the README in the codesandbox for steps to setup the backend for free online in under 2 minutes.
Some related issues that may help if no other solution is found:
Limit rendering Popups
Not the same question as Plotting 140K points in leafletjs. I am specifically looking for an answer to how it might be possible to update markers to remove markers not in new data fetch and add new markers not present in previous data fetch without re-rendering existing markers.
Take a look at the example code and you will see the markers flash as they all get re-rendered when the new data is fetched. This might lead to a better hybrid between performance and UX as I really don't want to use the CircleMarker and I already added clustering but still have existing lag.
You should use the React Canvas Markers plugin. The poor performance is because the default behavior is to create an individual div for each marker. This avoids the performance hit by writing your map and markers to a canvas element. Here's a working example from SO.
I implemented google Map with cluster and polyline drawing with vehicle moving on it, and divided map functionality with time slots please check image to get clear understanding,
My Main Problem when large number of lat longs comes in response rendering get hanged for few seconds and also please wait loading (Some time get hanged), Sometimes also result in the no response with the page ,
Please help me with the solutionConsole Errors
Map Image with buttons functionality
I am working on a project (Collectable Card Game) that has me accessing several cards at once. Essentially,think solitaire. Where a lot of cards are on the stage at once, and you flip them over to reveal them. --- The catch is each card can be re-flipped and display a different card from the availableCards array.
Initially I would create a single object that held a different card in each frame. This works fine, but seems highly impractical due to so many objects on the stage, all of them holding every single frame... in other words, each card would be a full deck.
I restarted and decided to go with each card is it's own object. So I stopped because before I get going again, I wonder if there is an even better way?
Do I create one hundred cards in Flash and store their names in an array?
Can I create a single card, and somehow get a card image from a clip with one hundred frames?
If there is a way to have all the card images in a single object it would be easier to work with in Flash, but would that mean the whole object would have to be used just to show a single frame?
Thanks in advance everyone!
I am trying to understand how tile server handle requests.
I red about Mapnik which "creates" the map using OSM,
Does "creates" means that every request is rendered and returned? If yes what is the performance hit (global map)?
Or it means that Mapnik Creates all tiles needed on initialization and then serves the right one upon request? if yes what is the total storage needed for all tiles(for global map)?
I am trying to find a way to build my own tile server (global map) while rendering it only once.
With typical tile-based maps such as OSM's default Mapnik style, there is a cache to store previously rendered tiles, but it contains just a small subset of all possible tiles. Other tiles are calculated on-the-fly if a client tries to access them. Only a small percentage of the tiles are actually ever requested as most of them are likely not particularly interesting to users.
The OpenStreetMap wiki's page on Tile Disk Usage has some numbers with a breakdown by zoom level. According to this source, you are looking at roughly 50 TB of data if you want to store all tiles for a global map with 18 zoom levels. Other estimates range into the hundreds of TB, though.