Category: Geographic Information Systems

How to call a package in QGIS python console?

How do I use the Python console in QGIS? To open the console go to Plugins ‣ Python Console ( Ctrl+Alt+P ).Console Code completion, highlighting syntax and calltips for the following APIs: Ctrl+Alt+Space to view the auto-completion list if enabled in the Options; Execute code snippets from the input area by typing and pressing Enter

Combining PDFs in Folder using ArcPy for ArcGIS Pro?

How do I combine multiple PDFs into one folder? Open Acrobat to combine files: Open the Tools tab and select “Combine files.” Add files: Click “Add Files” and select the files you want to include in your PDF. You can merge PDFs or a mix of PDF documents and other files. How do I insert

What is the best way to protect data online?

6 Ways to Protect Your Personal Information Online Create strong passwords. … Don’t overshare on social media. … Use free Wi-Fi with caution. … Watch out for links and attachments. … Check to see if the site is secure. … Consider additional protection. What is the best way to protect data? Here are some practical

Are ESRI Shapefiles and KML files two different ways of representing data?

What is the difference between shapefile and KML file? KML and Shapfiles could contain the exact same data, however KML is much more suited to displaying time based track information, whereas shapefiles are more suited to displaying Geometries, like boundaries, areas, roads, etc.  Is A KML file a shapefile? The kml file may contain any

Getting Uncaught SyntaxError: Unexpected token { error when using downloaded ArcGIS API in PC without internet)

How do I fix an unexpected token syntax error? To fix this error, you must carefully review your code and identify the unexpected token causing the error. Once you have found the unexpected token, you can correct it by removing it, adding the missing token that it was supposed to be paired with, or fixing

Cannot install any extensions on GRASS GIS?

How do you install GRASS addons? Addons can easily be installed in your local GRASS GIS installation through the graphical user interface (Menu – Settings – Addons Extension – Install) or via the g. extension command. How to install GRASS plugin in QGIS? Loading GRASS raster and vector layers Start QGIS. If not already done

Can GPS transmission time be the same for two different ephemerides?

How long is GPS ephemeris valid? 4 hours The active ephemeris validity period is usually 4 hours, and, if exceed, the ephemeris data must be refreshed. Accordingly, the GPS/GNSS receiver can quickly calculate its position from the new ephemeris data (hot start) only for a maximum period of 4 hours. How often is GPS ephemeris

Calculate bounding box coordinates of a selected polygon with QGIS

How do you calculate bounding box? To make coordinates normalized, we take pixel values of x and y, which marks the center of the bounding box on the x- and y-axis. Then we divide the value of x by the width of the image and value of y by the height of the image. width

Assigning random points to unique values

How to randomly generate unique numbers in Java? Random rand = new Random(); selected = rand. nextInt(100); java.Explanation Generate a random number and add it to the new array. Generate another random number and check if it is already stored in the new array. If not then add it and continue. else reiterate the step.

Getting wrong lat/lang after transforming from “EPSG:900913” projection to “EPSG:4326”

What projection is 900913? Answer. 900913 is used as a well-known ID (WKID) by some Web services for the spherical Mercator-based coordinate system used by Bing maps and Google maps. The 900913 value is a representation of the Google name and originated in the blog entry, Google Projection: 900913.  What is the difference between EPSG

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