How to achieve a cm accuracy in GNSS?
Hiking & ActivitiesHow can I improve my GNSS accuracy? Enclosed spaces. Highly clustered satellites can give large errors. A disperse set of satellites improve accuracy. Being in an enclosed space, such as a steep sided valley or a high rise urban environment, reduces the area of sky visible to the GPS receiver. What is cm accuracy? Centimeter-level
QGIS composer add attribute table with repeating columns
Hiking & ActivitiesHow do I add a column to an attribute table in Qgis? Right click the layer in the Layers Panel then click the Open Attribute Table menu option. Click the Toggle Editing Mode button. Click the New Field button. Input the field’s Name, Type, and Length, then click the OK button. How do I add
ArcMap ‘Add Locations’ field mappings not showing added field for network analyst layer
Hiking & ActivitiesHow do I add a network analyst to ArcMap? Enabling the ArcGIS Network Analyst extension in ArcMap Start either ArcMap or ArcCatalog. Start ArcMap by clicking Start > All Programs > ArcGIS > ArcMap. Click Customize > Extensions. The Extensions dialog box opens. Check the Network Analyst check box. Click Close. Why is my shapefile
How to read netCDF raster data in GRASS or QGIS?
Hiking & ActivitiesHow to read netCDF data in Qgis? There are different ways to open a netCDF file in QGIS. Either click on the icon on the top left, as shown below, or drag and drop a file directly onto the map canvas. Choose a netCDF file (. nc), then click on the variable you want; for
OpenLayers: draw a shape (square or circle) where the user clicks on map
Hiking & ActivitiesHow do I draw a circle in OpenLayers? To activate freehand drawing, hold the Shift key. Square drawing is achieved by using type: ‘Circle’ type with a geometryFunction that creates a 4-sided regular polygon instead of a circle. Box drawing uses type: ‘Circle’ with a geometryFunction that creates a box-shaped polygon instead of a circle.
Installing ArcGIS 10.1 on SQL Server 2008 R2 Cluster
Hiking & ActivitiesHow to connect ArcGIS to SQL Server? Tip: Open the Catalog pane in ArcGIS Pro. Right-click Databases and click New Database Connection. Choose SQL Server from the Database Platform drop-down list. Type the SQL Server instance name in the Instance text box. Choose the type of authentication to use when connecting to the database. How