Has anybody else experienced having issues opening QGIS or .gqz project files on macs?
Geographic Information SystemsWhy can’t I open QGIS on my Mac? Overriding Mac Security Preferences to Install QGIS If your security settings are strict, you will be blocked from installing this package with a message stating, “1 GDAL Complete. pkg” can’t be opened because it is from an unidentified developer. How do I open a QGZ file in
Inserting hyperlink to PDFs for each Polygon using QGIS?
Geographic Information SystemsHow do you add a hyperlink to a PDF? How to add hyperlinks in a PDF. Choose Tools › Edit PDF › Link › Add or Edit. Drag a rectangle where you want to create a link. In the Create Link dialog box that appears, choose your link appearance. Select the destination for your hyperlink.
Raster:area() in R before and after projecting data
Geographic Information SystemsWhat is area function raster R? The „area“ function of R’s „raster package“ results in a vector of the cell sizes in the raster object (in km2), which differ from north to south. In order to calculate the entire area’s size can be obtained by adding up all cell sizes or multiplying the median cell
Why side looking?
Geographic Information SystemsWhy do we use side-looking system in range measurement? Side-looking radars are used to obtain higher resolution than conventional radar, improving the ability to recognize surface targets. Why is synthetic aperture radar side-looking? Radar has to view obliquely so that the time delay of the echo is proportional to the distance across the swath. That’s
Problem importing sqlite into Postgres (with PostGis) using ogr2ogr
Geographic Information SystemsHow to import SQLite database into PostgreSQL? The following steps will help you in connecting SQLite to PostgreSQL using the Fixture method: Step 1: Create SQLite DB Dumpdata Backup. Step 2: Generate a Postgres DB and User. Step 3: Configure Settings.py. Step 4: Import Required Fixture via Loaddata from SQLite to PostgreSQL. Is SQLite
Map does not appear upon opening print composer in QGIS
Geographic Information SystemsHow do I add a map to print layout in QGIS? Quote from video: To add a print layout to go to the project menu and choose new print layout you'll be asked to give a name we can have multiple print layouts in a project and print layouts are saved in the project. Where
QGIS: Show label only when corresponding marker is displayed
Geographic Information SystemsHow do I only show certain labels in QGIS? In QGIS 2.0 you find the setting “data defined/show labels” at Labels -> Rendering -> Label options. For this the labelling must be activated with the certain attribute. With a click on “Edit…” the expression string editor opens, which some of you should know from the
Geocode an address and then buffer
Geographic Information SystemsHow can I geocode an address for free? Google Maps This free platform will allow you to geocode virtually any type of location. Plotting one location is simple. Just go to Google Maps and type your query into the search bar. Whether it’s an address, zip code, or any other type of location, Google will
Generating a polygon tile index from multiple vector datasets
Geographic Information SystemsHow do I create a vector tile package? Create vector tiles Highlight the map in the Contents pane. On the Share tab, in the Share As group, click the Web Layer menu and click Publish Web Layer . In the Share As Web Layer pane, on the General tab, under the Layer Type heading, choose
SetTimeout in Earth Engine
Geographic Information SystemsHow does the Earth Engine Work? Earth Engine hosts satellite imagery and stores it in a public data archive that includes historical earth images going back more than forty years. The images, ingested on a daily basis, are then made available for global-scale data mining. What code does Earth Engine use? JavaScript The Google Earth