This time I would like to present an excellent way of making the simple choropleth map in QGIS, based on MS Excel data. Occasionally you will be acquainted with some tricks, which help you to understand how to plot the Excel data to your QGIS map correctly.
Using special characters in QGIS expressions
This brief text explains how to use some custom symbols in QGIS expression. Obviously, it applies only to the quoted part, which represents the bits with string. There are 2 ways of doing it. The first method uses the char() element, which can give us the desired symbol, letter, or icon. In the case of … Read more
12P/Pons Brooks comet during 2024 total solar eclipse
This text shows some guidelines for the brief moment of the total solar eclipse 2024 occurrence at twilight, which presumably will allow for a fantastic view of the 12P/Pons-Brooks comet being close to its perihelion point. 1. 12P/PONS – BROOKS COMET – GENERAL INFORMATION 12P/Pons-Brooks is a periodic, Halley-type comet, … Read more
Effective geocoding in Python free of charge
In this short text, I would like to share my approach regarding the simple Python geocoding tool. This tool is completely free and I’ve implemented some elements for its usability, which should make it effective. The most important feature of this small tool is no API requirement at all. As mentioned in the title, this … Read more
What exactly is a hybrid solar eclipse?
This text is aimed at explaining to you what roughly is the hybrid solar eclipse phenomenon. In my opinion, most sources define the hybrid solar eclipse incorrectly, defining it as the eclipse, in which one type morphs into another or sometimes, just a total solar eclipse, which most people want to see under these oddball … Read more
Folium Draw plugin – extended functionality
The Draw is a very nice plugin dedicated to anyone who wishes to draw editable vectors on the Folium map. It’s a comprehensive plugin, that can add lines, polylines, polygons, rectangles, circles, circlemarkers, and markers and then edit or delete them. Its functionality is the same as in the Leaflet Draw plugin, where its Folium … Read more
Styling on-click marker on Python Folium map
Recently I’ve explained to you how to launch Google Street View from any place on the Folium map. Today it’s the time for continuation – styling the on-click marker, which can be applied to any other on-click marker provided to the Folium map. Let’s get started with the code discussed in the previous article (break … Read more
The Google Earth FOV feature usage in long-distance observations
This article presents a nice feature in Google Earth, which lets on getting a telephoto view rendered from any location around the globe. Because the option is to be considered in the aspect of the long-distance observations, it’s indeed a continuation of the thread about the estimation of visibility between two artificial objects. That’s exactly … Read more
Quick access to Street View from various applications (based on Leaflet map example)
Everyone knows how Google Street View is needed for the desktop investigation of various issues. It’s very beneficial since we have access to this Google product from another platform, certainly dedicated to some topic. Indeed, there are quite a few ways of getting the Street View visible at the same time when browsing the specified … Read more
Happy New Year 2023 to everyone!
Another year is over. Traditionally it’s time for new wishes for everyone. On this occasion, I used to attach some pictures of fireworks watched at particular places or even a multitude of random spots worldwide. It will be different this time, as I’ve decided to make this post more informative (except for the one, where … Read more
Opening Street View with Python Folium map
Folium is a powerful Python library dedicated to geospatial data visualization. Its major engine is based on Leaflet – an open-source JavaScript library for mobile-friendly interactive maps. There are a lot of sources on the web, where anyone can find the basics of data displaying with Python Folium in several different ways. Most of them … Read more
Breaking down the Street View permalink
Google Street View is a technology, which provides interactive and multiperspective panoramas of many places and streets worldwide. It’s commonly used on a daily basis, but hardly anyone pays attention to the permalink displayed in the URL address bar. In fact, some programmers use it for instant opening the Street View roughly at the desired … Read more
Export your QGIS project to AutoCAD LT with attribute table data
After browsing the internet and trying my own approaches finally, I can come out with a nice method, that allows you to pass the attribute table data from your QGIS project to AutoCAD LT. Basically, the QGIS project can export to the AutoCAD environment easily. It’s just going to the Project -> Import/Export -> Export … Read more
AutoCAD LT – Zoom (search) by coordinates
I would like to show you a nice feature in this short article. You can use it in your AutoCAD software and the LT version. It applies to searching (or zooming) the object by coordinates. When can it be useful? Usually, in the case of validation of your projects, you have thrown some coordinates. Usually, … Read more
Long distance observations – definition & types
This article is about the general definition of the realm, which has been described occasionally on this website since 2017. Therefore I guess I should have done it much earlier, however better late than never. Anyhow today I would like to focus exactly on both the primary definition as well as the basic divisions of … Read more
Getting the total length of lines or polylines in AutoCAD LT – the most reasonable way
The AutoCAD LT version is restricted to many fields. It impacts also the option of total calculation of the lines and polylines comprised of the given layer. Since our layer is not big, we can handle it manually by for instance the sum of separate calculations in the table or just simply by applying the … Read more
Geolocation large drawings in AutoCAD LT
In this post, I would like to bring you some knowledge about the geolocation of drawing in the AutoCAD LT version. At some point, you can find here some repeatable stuff showing you the relevant steps for making this task successful. However, I wouldn’t have decided to post this article if I had seen the … Read more
Autofill elevation data for any QGIS point layer
In the recent text, I’ve shown you how to get the elevation data to QGIS without DEM. Imagine, that this is a track for equipping any point in QGIS with elevation data regardless of its location on our map. Maybe it’s not that useful when our point layer is restricted to some small area bounded … Read more
AutoCAD LT – Palette migration from newer to older version
This article is about the migration tool palette from a newer to an older version of AutoCAD LT. Despite a vast majority of cases, where the tool palette, as well as other settings, are moved from an older to a newer version of AutoCAD sometimes, although very rarely the situation in another direction might occur. … Read more
Extraction of item properties from AutoCAD LT to Excel
AutoCAD LT version is quite poor when compared to the full AutoCAD 3D software. It means in practice, that some options aren’t available or require a bigger workaround in order to get to the desired point. One of the issues is the lack of a direct option of exporting attribute data from our drawing directly … Read more