Inserting hyperlink to PDFs for each Polygon using QGIS?
Hiking & ActivitiesHow 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
Hiking & ActivitiesWhat 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?
Hiking & ActivitiesWhy 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
Hiking & ActivitiesHow 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
Hiking & ActivitiesHow 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
Hiking & ActivitiesHow 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