The 49 brightest stars in the night sky – when and where can we see them?

25 brightest stars in the sky NASA

Since this amazing image (at the top) has been published, the articles about the 25 brightest stars in the night sky grew like weeds. Despite a multitude of similar texts presenting a brief description of the brightest stars, which can be seen in the night sky there is no complete information. I do not mean … Read more

The quickest way of making the speed limit map

Speed limit map London OpenStreetMap

Previously I explained to you how to make the speed limit in QGIS and display it in Google Maps. This process required drawing the new layer including the speed limit of the given road sections collected from the Waze.com map service. Admittedly this is not the quickest way of getting a map such as this, … Read more

Displaying OpenInfraMap data in QGIS

OpenInfraMap in QGIS

OpenInfraMap is one of many OpenStreetMap projects, which is concentrated on highlighting the infrastructure worldwide. Predominantly this infrastructure is invisible in the major OpenStreetMap rendering but is directly sourced from OpenStreetMap. The OpennInfraMap is focused on displaying: – Power, – Solar generation, – Petroleum (Oil & Gas), – Water infrastructure, – Telecoms. The map is … Read more

Opening Google Street View in VBA Excel

Open Street View from Excel

Opening websites programmatically at their certain addresses is quite a straightforward thing regardless of the programming language. Previously I dealt with launching Google Maps from the Excel document with the Google Chrome browser.  Now I would like to explain to you briefly the option, which allows you to open the Street View image anywhere you … Read more

Happy New Year 2022 to everyone!

Happy New Year 2022

We are coming to the end of the next year, another busy year for anyone of us. At the finish of the 6th year of the MkrGeo blog, I would like to wish all the best to all of you in the New Year 2022. May the coming year be full of grand adventures and … Read more

A guide for displaying the Sweet Home 3D model in Google Earth

Sweet Home 3D model in Google Earth

Sweet Home 3D is an open-source architectural design software, mostly dedicated to interiors, which helps users create a 2D plan of a house with a 3D preview. In this design software, a user can also decorate exterior and interior views by placing a multitude of objects. These objects are mostly furniture and home appliances, which … Read more

36 constructive tips & tricks for the Mapy.cz application

Mapy.cz winter map

The Mapy.cz is probably the best tourist map (and app) worldwide. It has been created by the Seznam.cz – one of the main web portals and search engines operating in the Czech Republic. The very first steps of this map portal have been taken in 1998. For long years the Mapy.cz was covering the Czech … Read more

Original Street View colors without Google API Key

Street View colour inversion

Street View is a good tool, which can be incorporated into your own interactive maps like Leaflet or OpenLayers. Unfortunately, since 2018 Google hasn’t served it for free. In turn, the Google Maps products can’t be set up properly, because you can see the “For development purposes only” information along with the poor quality of … Read more

Manual estimation of the visual range between two artificial objects – case studies

Manual estimation of view between two points

Anyone, who deals with long-distance observations knows all the most popular panorama or visibility cloak generators from the given place. Every user knows the primary malady of all these simulators – they’re based on the DEM (Digital Elevation Model) only. In practice, it means, that all the calculations are based on the pure ground with … Read more

Saving Openlayers custom drawings as the .geoJSON file

OpenLayers custom drawings

In this short post, I would like to demonstrate to you the programmatic method of saving the custom shapes in OpenLayers as the .geoJSON file. Drawing your own features on the OpenLayers map canvas equipped with some existing layers, like it takes place in the case of the map rendered by the QGIS2Web plugin can … Read more

Batch styling of KML files in Google Earth

Batch styling KML files in Google Earth

Probably you used Google Earth many times, watched at least a few tutorials, and tried to manipulate some files by yourself. On the Web, you can find many sources, where the process of creating some simple elements in Google Earth is explained. Besides the drawing features, Google Earth can be a place where a user … Read more

Shall we trust Stellarium Web or Stellarium App?

Mercury and Saturn occultation 2037

Stellarium is a free open-source planetarium, which can be used in different ways. The primary software is dedicated to your computer, but you can still work with Stellarium by using it both via a web application (Stellarium-web.org) as well as an Android application (Stellarium Mobile). Within this second one, there are also another two ways … Read more