Clarification on Oracle sdo_gtype
Hiking & ActivitiesWhat is Oracle SDO? Introducing Service Data Objects. SDO is a Java-based data programming model and architecture for accessing and updating data. What is spatial data in Oracle? Oracle Spatial consists of a set of object data types, type methods, and operators, functions, and procedures that use these types. A geometry is stored as an
Manually set QGIS vertex coordinate in lat-long format
Hiking & ActivitiesHow do you convert XY coordinates to latitude and longitude in QGIS? Toggle editing (ctrl-E) and open the calculator (ctrl-I). Select “create a new field”, call it “Longitude”, and make the expression $x. Do the same for a second new attribute called “Latitude” and make the expression $y. You should now have latitude and longitude
IDW/Kriging running slow in R
Hiking & ActivitiesIs kriging or IDW more accurate? For the forest, ordinary kriging had higher correlation (r = 0.921, P < 0.01) than IDW interplation (r = 0.875, P < 0.01). The results indicated that ordinary kriging is suitable for mapping tree density in dense forests, while IDW interpolation is more appropriate for scattered tree savannah woodland.
Control feature rendering order in QGIS with plugin
Hiking & ActivitiesHow do I reorder layers in Qgis? The order of layers can be changed by simply dragging and dropping them up and down the legend. How do I group features in Qgis? Quote from video: Just click select all layers. And add selected layers to project now my all layers are visible here so i
Download OSM data from XYZ Tile
Hiking & ActivitiesHow do I download OSM data? Download Directly from OSM Simply go to www.openstreetmap.org and find the area you would like to download data for. Hit the “Export” button and you will see a screen with the Extent of the download appear. You can customize this download as either the “current extent” or manually select
Is the Intersection Operation Commutative?
Hiking & ActivitiesLike addition and multiplication, the operations of union and intersection are commutative and associative, and intersection distributes over unions. Is intersection operation associative or commutative? The result of Intersection operation, which is denoted by A ∩ S, is a relation that basically includes all the tuples that are present in both A an S. 2.