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Custom Widgets in the ArcGIS API 4 for JavaScript

Custom Widgets in the ArcGIS API 4 for JavaScript

A look at the new widget framework to build custom widgets in the ArcGIS API 4 for JavaScript. Take note, look at the sample code on github to see an updated version that fixes a couple of small details in how the ViewModel properties will trigger a render of the Widget. Sample app source code: http://ift.tt/2ijRVGV

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Display Popups in Leaflet

Display Popups in Leaflet

Markers on map are awesome.But markers without information are boring and do not communicate much to the users of the map.Ensuring that a map has relevant and available information in leaflet, we need to use map events to show some information depending on the data we’ve displayed.This covers a simple way of using GeoJSON and Leaflet to display information on ...

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How or Where do I start GIS Programming?

How or Where do I start GIS Programming?

Sometimes we ask ourselves,How or Where do I start GIS Programming?. This is a question every developer had to ask themselves before getting started with hard stuff. This video gives an idea on where or how to start GIS programming and get going. Its explains the simple elements and points that will make you start after watching this video right ...

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Display data using leaflet and GeoDjango Tutorial

Display data using leaflet and GeoDjango Tutorial

This tutorial demonstrates the ways of loading data from GeoDjango models into a Leaflet map and also writing custom templates.It also uses the leaflet libraries that exist in Django-leaflet module to render and display maps on a template in Django. Using GeoJSONLayerView, data is loaded from a model and mapped to a URL which is then used in leaflet to ...

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Searching and downloading Earth Observation data programmatically with SkyWatchr

Searching and downloading Earth Observation data programmatically with SkyWatchr

SkyWatchr is an R package for accessing the SkyWatch API. This API facilitates searching and downloading several climate/atmospheric datasets and satellite imagery, including Landsat-8, Sentinel-2, OCO2 and others. SkyWatchr allows searching datasets by parameters such as location, date (or time period), data source (either instrument or satellite platform), wavelength bands, data processing level, maximum spatial resolution and maximum cloud cover. ...

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