on February 11, 2023
How to save a Polygon in an integrated Google Earth
Geographic Information SystemsDraw a path or polygon Open Google Earth. Go to a place on the map. Above the map, click Add Path . To add a shape, click Add Polygon. … A “New Path” or “New Polygon” dialog will pop up. … To draw the line or shape you want, click a start point on the
on February 11, 2023
Export MXDs files to PDFs using Python
Geographic Information SystemsHow to export Python to PDF? In this article, you will come to know the way to convert text and text file to PDF in Python. FPDF is a Python class that allows generating PDF files with Python code.Approach: Import the class FPDF from module fpdf. Add a page. Set the font. Insert a cell
on February 11, 2023
Matching csv of postal (zip) codes to another shapefile
Geographic Information SystemsCan you convert a CSV to a shapefile? Upload your CSV data (widely used in software like MS Excel, LibreOffice and OpenOffice) and convert them by one click to SHP (Shapefile) format (widely used in software like ESRI ArcGIS and ArcView). How do I merge a shapefile with a CSV file? We’ll start by importing
on February 11, 2023
Extracting polygons that overlay other polygons in different layer in QGIS
Geographic Information SystemsHow do you find overlapping polygons in QGIS? Enable Topology Checker Plugin in Plugin Manager. Add your polygonal layer in Topology Rule Settings window, select “must not overlap” rule and add them. To see overlap errors click on Validate button. How to copy polygon from one layer to another in QGIS with attributes? Start an
on February 11, 2023
Constructing geodetic lines
Geographic Information SystemsWhat is the difference between planar and geodesic? Planar distance is straight-line Euclidean distance calculated in a 2D Cartesian coordinate system. Geodesic distance is calculated in a 3D spherical space as the distance across the curved surface of the world. What are geodesic measurements? A simple measure of the distance between two vertices in a
on February 11, 2023
Variable is not recognize in QGIS expression using overlay_nearest function
Geographic Information SystemsHow do I add an expression in QGIS? To add an attribute to the Field calculator Expression field, double click its name in the Fields and Values list. Generally, you can use the various fields, values and functions to construct the calculation expression, or you can just type it into the box. How to use
on February 11, 2023
Object-Oriented LULC Classification in Google Earth Engine
Geographic Information SystemsHow do you use Google Earth Engine classification? select(bands). classify(trained); // Display the inputs and the results. Map.The general workflow for classification is: Collect training data. Instantiate a classifier. Train the classifier using the training data. Classify an image or feature collection. Estimate classification error with independent validation data. What are the different methods of
on February 11, 2023
Which hardware for running FME 2015 on linux
Geographic Information SystemsWhat are the system requirements for FME? Recommended Hardware Requirements Pentium® 4, AMD Opteron or newer with 8GB or more of RAM and 20GB of available disk space. While FME products can operate on legacy hardware, additional memory, faster CPU and disk will significantly improve processing time. How to use FME software? How it Works
on February 11, 2023
Is there a UK elevation raster layer available for use in QGIS for the WalkingTime plugin?
Geographic Information SystemsHow do I add a raster layer in QGIS? Add a raster layer into QGIS Download your chosen data layer. Use the ‘+ map’ button to add your chosen raster dataset to your collection, and click Export. Extract your download to a new folder. Open Quantum GIS (QGIS) Select Add Raster Layer. Zoom to your
on February 11, 2023
Mask raster cells within only
Geographic Information SystemsHow do I mask a raster in Arcgis? Quote from video: And go to extensions and make sure it's on once that's done i would go to spatial analyst tools and then what we want to do is we want to extract. Features or extract our roster based on a mask. What is raster masking?