Filter Data into separate layers in Leaflet

Filter Data into separate layers in Leaflet

GIS, Leaflet, Programming, Tutorials
Data loaded in Leaflet as a layer can be filtered on the fly to create separate layers that meet a certain criteria. This is very helpful when handling data that is not too huge for the browser. I have a done a video tutorial to demonstrate how to filter data on-the-fly in Leaflet. This tutorial uses GeoJSON data. Subscribe to the YouTube Channel for more videos and tutorials
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A Web-GIS – A System for Agriculture

A Web-GIS – A System for Agriculture

GIS, Slider, Web-GIS
Its quite some time since I talked about web GIS development on this blog.In the last one year,I have had a great time exploring different mapping platforms and testing any platform that I came across.Web GIS is a field in which over the last few years, has really seen the light of the day as every organization struggles to migrate to the cloud. Cloud computing platforms have facilitated this move by minimizing on development time required to setup a full GIS stack on the cloud.Having both commercial and open platforms, web GIS has interested many  in different fields and tests have been conducted to prove its importance to a company's area of jurisdiction. As I have been interacting with the industry and organizations in different areas, web GIS is an…
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The good news in QGIS 2.14.0 – Essen

The good news in QGIS 2.14.0 – Essen

General, GIS, QGIS, Slider, Software
In the last few years, QGIS has really grown in a huge collection of tools, algorithms tackling various tasks in its environments.The Dev team has really given QGIS a new look and feel and also power to roar in the GIS world. Tools tackling simple to complex processes have now been developed and been released for use by the wider community. QGIS 2.14.0 was released and comes with really great functionality that were missing in previous releases. Follow along as I unwrap some of  the functionality for you. Added Styling Options This new version of QGIS comes with new and great styling options for layers, either point, line or polygon. Styles in QGIS 2.14.0 Zoom to Feature (By Right Clicking on feature in attribute table)  This gives an easier access…
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A pilot Land Administration Domain Model(LADM) for Kenya

A pilot Land Administration Domain Model(LADM) for Kenya

General, GIS, Programming, Web-GIS
Kenya has amassed a huge collection of records since 1902 when the colonial government put in place the Crown Land Ordinance of 1902. This law allowed alienation of native lands for the colonial masters and the alienation process involved formal registration of ownership rights. Over the years, a number of laws touching on land were passed and operationalized, with the effect of having land administration and registration being exercised under different legislative regimes. All the documentation produced from land transactions over these years have continued to be kept in paper form. This has seen a big number of these documents get destroyed by normal aging processes, lost through untracked paper trails and from corruption driven motives.  The Institute of Geomatics, GIS and Remote Sensing (IGGReS) of Dedan Kimathi University of…
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GIS impacts in the East African Region

GIS impacts in the East African Region

General, GIS
Geographic information systems (GIS) has become a well-known term all over the world due to its rapid growth all through from the time it had its roots. You might want to have the meaning of the GIS itself but as it has the sounding, it just has the simple meaning of a tool. As questions arise on how and why GIS, there has been its growth and the impact of its development all over the world. In the Easter African Region, there has been the development of GIS and has had a great impact to the economy and its people.          Geospatial information systems has taken a greater role in the planning sector in the Easter African region. It has had its introduction in many planning agencies in east Africa.…
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Nearest neighbor Analysis in QGIS

Nearest neighbor Analysis in QGIS

GIS, QGIS, Software, Tutorials
GIS is very useful in analyzing spatial relationship between features.It is important at times to find the features nearest to a feature in GIS.To achieve this, we can use the Distance Matrix that helps in calculating the distances between each point in the dataset. Steps You can use Vector > Analysis Tools > Distance Matrix, and a join to have an output layer that has all the required attributes. I will use the Towns layer to exemplify. This will help in showing the distances and is quite small for faster processing. 1. Create a distance matrix using your layer as both destination and target. Don't forget to tick "Use only the nearest (k) target points" and set it to 1. Distance Matrix Window 2. Open the CSV with add delimited…
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Begin  developing in GIS

Begin developing in GIS

GIS
    For the last few weeks, I have been putting together some ideas that I gathered from different environments when interacting with people in GIS.We are talking and implementing GIS in our daily tasks either in office, fields and even education centers.With the modern day innovation and technology, we ought to keep our levels of understanding about GIS higher to help maintain the working conditions and work-flows we implement each day. I have interacted with many GISers and shared topics in GIS and they all seem to like the innovations happening in the GEO sector as automation is one of the key areas being focused by the software developers and also the availability of many platforms to use and share spatial data are extremely awesome.There exist the Three main sections…
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Using QGIS Layer Styles in GeoServer

Using QGIS Layer Styles in GeoServer

GIS, QGIS, Software, Tutorials
GeoServer provides us with the functionality of styling our layers to match our preferences. However, many are the times that many GeoServer users face problems while publishing their layers. Styling in GeoServer should be an easy task when doing web applications or publishing your GIS layers via GeoServer. [caption id="attachment_181" align="aligncenter" width="390"] Expected Results[/caption] Today, I will focus on how to apply same styles for layers in GeoServer as in your QGIS project. Here are a few steps that can be followed to achieve the expected results. Load a PostGIS layer in the map canvas in QGIS using the Add PostGIS layers option in Manage Layers toolbar.   The Add PostGIS tabledialog box appears and it gives the option to add a connection to our PostGIS tables Add connection Fill…
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