Tag GIS

Filter Tiled Layers

One of the core ideas in mapping is the difference between vector and raster layers. For vector layers, the actual geometry data is stored and passed around - for example a point might store the latitude and longitude. For tiled raster layers, the data is stored as images on the server, and those images are displayed as the layer.

In the past, the visualization of tiled raster layers could not be filtered based on geometry. Using layer blending in recent versions of the ArcGIS Maps SDK for JavaScript, this is now possible.

Using the WGS 84 Coordinate System in ArcGIS JavaScript Maps

Web Mercator is the standard for online interactive maps. But what if we want to use the EPSG 4326 (WGS 84) spatial reference?

Georeference an Image with an Extent in ArcGIS Pro

How to use a world file in ArcGIS Pro to georeference an image if you have the image’s extent.

The Elusive Draggable Map Popup

In the ArcGIS Maps SDK for JavaScript, the popup widget displays the attributes for individual features on the map. In certain cases, you may want the user to be able to move the popup by dragging the mouse cursor. Here’s how to do that.

Query All Features from a Feature Service

When querying an ArcGIS Feature Service, there is typically a maximum number of features (records) that will be returned from any query – usually set to 1000. Normally, if you wanted to query for all the features in the service, you would need to make multiple REST calls to get them all. Learn how to use the package query-all-features to do this with only one REST call.

Quick Start Script for ArcGIS Experience Builder

If you develop with ArcGIS Experience Builder, you know that getting started is a multi-step process. It would be nice to get started a little more quickly.

Here’s a simple Windows batch script that will do that. It installs the dependencies, if necessary, and then starts up the Experience Builder server.

Automatic Wikipedia Links in ArcGIS Online Popups

How to add automatic and dynamic Wikipedia links to ArcGIS Online map popups based on attributes.

Map Stream

A web app that shows the most recently updated public web maps in ArcGIS Online.

Find Latitude/Longitude Coordinates in Two Clicks

Latitude Longitude Locate is a simple mapping app designed for geo developers to get the latitude and longitude of a location quickly.

Query to Get All Features in the ArcGIS Maps SDK for JavaScript

When you’re querying a Feature Service in the ArcGIS Maps SDK for JavaScript, there’s typically a maximum number of features (records) that will be returned from any query – usually set to 1000. If you want to get all the features in the service, you’ll need to make multiple queries to the service. Here’s how to do it.