Extract pixel values and its category using R
Hiking & ActivitiesHow to extract pixel values from raster in R? Extract Raster Values from Points using R Step 1: Create a Raster stack or Raster brick of your raster files using “raster” package in R. Step 2: Read point data, and convert them into spatial points data frame. Step 3: Extract raster value by points. Step
Changing to alternate label if first label does not fit in QGIS?
Hiking & ActivitiesHow do I force labels in QGIS? Turn on Labels in QGIS Right-click on the layer and select the properties option from the menu. Then click on Labels and set up the field you want to label on. Under rendering, make sure the “Show all labels” box is checked. How do I make labels not
How to measure correct distances in a project with OpenLayers background?
Hiking & ActivitiesHow can we determine the true mapping distance? You can either take your ruler measurement of the distance between your two points and place that on the scale to determine real distance, or you can use scratch paper and go from the scale to the map. Which tool is useful for setting specific distances? Measuring
Converting data type in ERDAS IMAGINE and ArcGIS for Desktop?
Hiking & ActivitiesHow do I convert a Geotiff to a shapefile in ArcGIS? Quote from video: The first step is to add a reader. So I'll go ahead and drag in my source. File. Next I'll add a writer. I'll choose ESRI shape file as the format and specify the destination. How do I convert float raster
Convert point shapefile to polygon with QGIS
Hiking & ActivitiesHow do I convert point data to polygon in QGIS? Quote from video: Just add a vector layer input and two table fields for the group and order attributes. Then you add the tool to create the paths from the input. How do you convert a point feature to a polygon? Converting points to polygons
OpenLayers OSM layer
Hiking & ActivitiesWhat is OSM in OpenLayers? OpenStreetMap is often shorted to OSM. OpenLayers is a client viewer. OpenLayers is a JavaScript library which implements an API for developing dynamic map widgets on the web. What is the difference between OpenLayers and OpenStreetMap? 1 OpenStreetMap has better usage coverage in more websites categories. Including Computers Electronics &