Demo app to go along with blog post about creating custom TopoJSON data here
http://datamaps.markmarkoh.com/using-custom-map-data-w-datamaps/
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June 10, 2018 08:51
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Custom Map Data in Datamaps
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js"></script> | |
| <script src="http://rawgithub.com/markmarkoh/datamaps/master/dist/datamaps.none.min.js"></script> | |
| <div id="afghan" style="height: 500px; width: 900px;"></div> | |
| <script> | |
| var map = new Datamap({ | |
| element: document.getElementById('afghan'), | |
| geographyConfig: { | |
| dataUrl: 'customAfghanMap.topo.json' | |
| }, | |
| scope: 'afghan', | |
| fills: { | |
| defaultFill: '#bada55', | |
| someKey: '#fa0fa0' | |
| }, | |
| data: { | |
| 'AFG-1758': {fillKey: 'someKey'}, | |
| 'AFG-1747': {fillKey: 'someKey'} | |
| }, | |
| setProjection: function(element) { | |
| var projection = d3.geo.mercator() | |
| .center([66.166667, 34.4444]) | |
| .scale(2200) | |
| .translate([element.offsetWidth / 2, element.offsetHeight / 2]); | |
| var path = d3.geo.path().projection(projection); | |
| return {path: path, projection: projection}; | |
| } | |
| }); | |
| </script> | |
| </body> | |
| </html> |
Can you post the queries you made with ogr2ogr and topojson in order to make the map that you show http://bl.ocks.org/markmarkoh/8856417. Using the queries:
ogr2ogr \
-f GeoJSON
-where "ADM0_A3 IN ('AFG')"
subunits.json
ne_10m_admin_0_map_subunits.shp
and
topojson \
--id-property adm1_code
-p name=NAME
-p name
-o customAfghanMap.topo.json
subunits.json
does not get me the same output in the customAfghanMap.topo.json.
Here is what I get: https://gist.github.com/Peege151/fc8249c5f61fffc17829
Dear Sir,
i want to display label on each label on the map of afghanistan, i tried many ways but could not display label,
will you help me please
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Thanks for this very useful example. I have been able to copy what you have, but when I try to use a different topojson file, I get the error: "Uncaught TypeError: Cannot read property 'offsetWidth' of null."
Have you come across this before? There doesn't seem to be anything fundamentally different between my topojson (https://github.com/amupfill/TopoJSON/blob/master/nigeria_lgas_new_topo.json) and yours, so I'm really not sure what's going on.
Code for my example is here: https://github.com/amupfill/TopoJSON/blob/master/afg.html.
All the best,
Alex