How do I set the projection and coordinate system for a TIFF file?
Geographic Information SystemsDo TIFF files have coordinates? In the TIFF/GeoTIFF framework, there are essentially three different spaces upon which coordinate systems may be defined. The spaces are: 1) The raster space (Image space) R, used to reference the pixel values in an image, 2) The Device space D, and 3) The Model space, M, used to reference
Calculating the earth radius at latitude
Geographic Information SystemsHow do you find radius with latitude? Quote from video: The bigger r indicates the earth's radius. If you can recall we said that the radius of the f is given in two units in nautical miles. And in kilometers. How the radius of Earth is calculated? (C = 2πr) With this information, Eratosthenes inferred
SpatiaLite – WITH, view or sub-query?
Geographic Information SystemsDoes SQLite support subquery? In SQLite, a subquery is a query within a query. You can create subqueries within your SQL statements. These subqueries can reside in the WHERE clause, the FROM clause, or the SELECT clause. What is SpatiaLite used for? SpatiaLite is an open source library intended to extend the SQLite core to
How to convert the file with projections in meters to Lat-Long in QGIS ar Erdas Imagine?
Geographic Information SystemsHow do I convert projection in QGIS? There are three different ways to change/manipulate projections in QGIS: Project Properties > CRS (or you can click on the icon where EPSG is written in the bottom right corner) Right click on vector layer > Set Layer CRS. Right click on vector layer > Save As How
Change the label of the ui.Chart.image.seriesByRegion in Google Earth Engine
Geographic Information SystemsHow do I make a chart in Google Earth Engine? Use the ui. Chart. setChartType() method to set chart type. Each page linked to in the Earth Engine object charts and DataTable charts sections include examples for generating several chart types. What is feature collection in Google Earth Engine? Groups of related features can be
Where does Open-Streetmap forest data come from?
Geographic Information SystemsIs OpenStreetMap open source? In fact OpenStreetMap is powered by open-source software from its slippy map interface to the underlying data access API (a web service interface for reading and writing map data). How does osm work? OpenStreetMap (OSM) is a free, open geographic database updated and maintained by a community of volunteers via open
Displaying NLCD landcover data in QGIS with landcover class type?
Geographic Information SystemsHow to use NLCD data in QGIS? To open the nlcd data in qGIS, go to “Layer” in the top menu and click “Add Raster Layer”. Browse to where you saved the nlcd folder and click on the only file in there (a tif file). When it opens, it should like something like the image
Appropriate map projection for the Pacific Ocean
Geographic Information SystemsWhich map projection is best for oceans? Cylindrical Projection – Mercator It became the standard map projection for nautical purposes because of its ability to represent lines of constant true direction. (Constant true direction means that the straight line connecting any two points on the map is the same direction that a compass would show.)
Looping and Adding All Feature Classes From File Geodatabase Feature Dataset into Current Map
Geographic Information SystemsHow do I add a feature class to a feature dataset? Creating a feature class in a feature dataset In the Catalog tree, right-click the feature dataset in which you want to create a new feature class. Point to New > Feature Class. Type a name for the feature class. Choose from the drop-down list
Basic Authentication in Leaflet
Geographic Information SystemsHow to do basic authentication? Basic authentication is easy to define. In the global securityDefinitions section, add an entry with type: basic and an arbitrary name (in this example – basicAuth). Then, apply security to the whole API or specific operations by using the security section. How to include basic auth in URL? We can