Month: September 2021

Create Feature Information Popup tool in OpenLayers on map click

Hello Everyone, Welcome to next tutorial of open layers in which we will learn to create feature information tool on map click in OpenLayers. So what is Feature Information in GIS ? Feature information is Non-GIS information associated with GIS data. For complete source code of this tutorial, click here Check the Live Feature Information …

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What is GIS ?

What is GIS ? GIS stands for Geographical Information System(GIS). It is a system for gathering, storing and analysing GIS data. A GIS data is a data which has some location information associated with it. A very simple and popular example is GPS on your smart phone. Through GPS and Satellite, we gather our live location …

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Build your First GIS Web App using OpenLayers-Part 1

OpenLayers is an open source mapping JavaScript library which allows developers to develop highly interactive GIS web application. It can displays map tiles(or image) and vector data. In this post, we will create a simple GIS web app which will display OpenStreetMap on it. OpenStreet map is similar to Google Map. We will use a …

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Perform complex spatial operations in OpenLayers using JSTS

OpenLayers is a great open source GIS library which is used to develop a rich featured GIS web applications. But sometime you need to implement advanced spatial/geometrical operations. For example, union of two geometry, creating buffers, creating hole in polygon, dividing a polygon in two parts by a line as shown in following images. But, …

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Create a Dynamic Measurement tool in OpenLayers to show measurements on labels that follows changing geometry

In this tutorial, we are going to create a dynamic measurement tool in OpenLayers version 6.5. We will create a Line and Area measurement tool to show measurements on labels that follow changing geometry like area, length or cursor position as shown in the above GIF image Download the complete code of Dynamic Measurement from …

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