on January 26, 2023
Calculating the distance between points and multiple lines?
Geographic Information SystemsWhat is the formula for distance between points? Distance between two points is the length of the line segment that connects the two points in a plane. The formula to find the distance between the two points is usually given by d=√((x2 – x1)² + (y2 – y1)²). This formula is used to find the
on January 26, 2023
Cutting donuts in QGIS
Geographic Information SystemsHow do I cut a polygon in QGIS? Quote from video: So let us split this polygon. So let me go to the option called edit. And go to the edit. Section now go to the properties now to go to the section called edit geometry. And now go to the split. How do I
on January 26, 2023
Overlapping symbol in print layout in QGIS
Geographic Information SystemsHow do I change print layout in QGIS? To open the layout manager dialog: from the main QGIS dialog, select Project ► Layout Manager… menu or click on the Layout Manager button in the Project Toolbar; from a print layout or report dialog, select Layout ► Layout Manager… menu or click on the Layout Manager
on January 26, 2023
Dataframe object is not callable
Geographic Information SystemsWhy is my DataFrame object not callable? This error usually occurs when you attempt to perform some calculation on a variable in a pandas DataFrame by using round () brackets instead of square [ ] brackets. How do you resolve a DataFrame object is not callable? This error is easily fixed by using the brackets
on January 26, 2023
Are there free maps available that can show me land planted with oil palm?
Geographic Information SystemsWhere is palm oil grown? Many vast monocrop oil palm plantations have displaced tropical forests across Asia, Latin America and West Africa. Around 90% of the world’s oil palm trees are grown on a few islands in Malaysia and Indonesia – islands with the most biodiverse tropical forests found on Earth. Where does palm oil
on January 26, 2023
Set band value as property in an image collection Google Earth Engine
Geographic Information SystemsWhat is band in Google Earth Engine? Images in Earth Engine (see this page for more details) are made up of one or more bands. Each band in an image has its own name, pixel values, pixel resolution, and projection. As you’ll soon discover, the SRTM image has one band: ‘elevation’. Can I export an
on January 26, 2023
Use multiple connections/databases in a query layer?
Geographic Information SystemsHow do I perform queries using multiple databases? Multiple Databases on One Server Instance There are two requirements: You must prefix all table references with the database name (e.g. customers. customer instead of just customer). The account issuing the query must have sufficient privileges on the tables in both databases to execute the query. Is
on January 26, 2023
There is no menu bar on Mac OS 10.7.3
Geographic Information SystemsWhy isn’t my menu bar showing up on my Mac? If you notice that the Menu Bar at the top of your screen is missing, it is probably because you are using an app in Full Screen mode. You can customize how this works in System Preferences. You can also use Mission Control and Spaces
on January 26, 2023
Assigning categories to a single band raster in Google Earth Engine?
Geographic Information SystemsHow do I classify an image in Google Earth Engine? Classify the Image & Display the Results select(bands). classify(classifier); // Define a palette for the Land Use classification. var palette = [ ‘D3D3D3’, // urban (0) // grey ‘0000FF’, // water (1) // blue ‘008000’ // forest (2) // green ]; // Display the classification
on January 26, 2023
Shortest distance for multiple starting points
Geographic Information SystemsHow do you find the shortest distance between three points? To calculate the distance between 3 points, calculate the distance between all 3 combination of points, sum these values together, then divide by 3.Sep 27, 2022 What is the shortest distance between the starting and destination points? Explanation: In simple terms, displacement is the shortest