Adding Multiple Map Layers – Hide Show layer using Leaflet js

This article is about how you can make visible and invisible your layer with the help of checkbox on any base map. The base layer used here is OSM (Open street map), which is open source freely available map. With layers at the same time you can open up multiple data at once and make … Continue reading “Adding Multiple Map Layers – Hide Show layer using Leaflet js”

Create beautiful dynamic Legend map – Leafletjs TopoJson

In this article we are going to add legends to choropleth map with topojson Data using leaflet. Legends are the element of map that provides information about map with the help of symbols. Here symbol can be colour, shapes, figures etc. The choropleth map gives information using colours. Lets play around with : Create beautiful Legend … Continue reading “Create beautiful dynamic Legend map – Leafletjs TopoJson”

Read Parse Render TopoJSON file – Leaflet js

This article shows how to render topojson file data on OSM map with the help of d3 and Leaflet javascript library in the browser. Leaflet js is an open source small library to create interactive map. You may look over Getting Started with Leaflet js. TopoJSON is one of the GIS data structure which stores … Continue reading “Read Parse Render TopoJSON file – Leaflet js”

Convert Shapefile to TopoJSON file

Convert Shapefile to TopoJSON ESRI shapefile are the binary vector data storage format for storing the location, shape, and attributes of geographic features. It is stored as a set of related files and contains one feature class. Whereas TopoJSON (topological geospatial data) is an extension of GeoJSON that encodes topology. The necessity of conversion is … Continue reading “Convert Shapefile to TopoJSON file”

Convert GeoJSON to TopoJSON – GIS

Convert GeoJSON to TopoJSON. GeoJSON is an open standard format designed for representing simple geographical features, along with their non-spatial attributes, based on JavaScript Object Notation. The need of conversion is to reduce the size of data, so that rendering of data on browser can be made faster. TopoJSON (topological geospatial data) is an extension … Continue reading “Convert GeoJSON to TopoJSON – GIS”