Finding correct X Y values from two pairs of X Y map coordinates?
Hiking & ActivitiesWhat are XY coordinates on a map? X,y coordinates describe discrete locations on the earth’s surface such as the location of fire hydrants in a city or the points where soil samples were collected. You can easily collect x,y coordinate data using a global positioning system (GPS) device. How do you find the XY coordinates
Aligning two maps with different projections in QGIS
Hiking & ActivitiesHow do I set projections in QGIS? First, click on Settings > Project properties. Then, click on the box labelled as Enable on the fly CRS transformation. Next, select the projection which the current layer and all the subsequent layers will be using in common. How do I fix projection in QGIS? Open new map
Is any map with calculated NDVI available online?
Hiking & ActivitiesHow to find NDVI? How To Calculate NDVI? NDVI is calculated with the following expression: NDVI = (NIR-Red) / (NIR+Red), where NIR is near-infrared light and Red is visible red light. There’s a great number of free online GIS tools that allow you to instantly calculate NDVI. How do I get NDVI data from Google
How to increase performance of tile caches if vendor parameter filters are needed?
Hiking & ActivitiesHow do I tile cache in ArcGIS? To create a cache in an ArcGIS Online tiling scheme, specify Use ArcGIS Online scheme for the Input Tiling Scheme parameter (set tiling_scheme to ARCGISONLINE_SCHEME in Python). This tool may take a long time to run for caches that cover a large geographic extent or very large scales.
Build a leaflet polygon(s) from GeoJSON feature(collection)
Hiking & ActivitiesHow do you plot GeoJSON in leaflet? GeoJSON objects are added to the map through a GeoJSON layer. To create it and add it to a map, we can use the following code: L. geoJSON(geojsonFeature). How do you make a polygon in leaflet? Create a polygon using the L. Pass the locations/points as variable to
Lines of a SpatialLinesDataFrame corresponding to points
Hiking & ActivitiesWhat is a Spatiallinesdataframe? Description. this class holds data consisting of (sets of lines), where each set of lines relates to an attribute row in a data.frame. How do I convert a Dataframe to a SpatialPointsDataFrame? First, you take the columns of lon and lat and create an object for coord . Then, you subtract