How to create a polygon from Excel coordinate file
Hiking & ActivitiesHow do I create a shapefile from coordinates in Excel? Right click on your file and hover over “Create Feature Class”, then select “From XY Table…” In the pop-up window, the X Field should be Longitude and the Y Field should be Latitude. If you know the spatial reference of the input coordinates, click the
How to symbolize multiple layers with different EMF’s in ArcObjects C#
Hiking & ActivitiesHow do I apply symbology to multiple layers? Click the Symbology Layer drop-down list, and select the main raster with the highest maximum and the lowest minimum values to be applied to the input rasters. Click the Update Symbology Ranges by Data drop-down list, and select Maintain ranges. Click Run to execute the tool. How
Custom form and attribute table QGIS
Hiking & ActivitiesHow do I create 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 create a form in
ERROR 000539: Error running expression:rcexec ()
Hiking & ActivitiesWhat is error 000539 file expression? The error occurs because the output value of the iterator is used as an expression rather than an inline variable in the Calculate Field tool. The tool has two outputs: Selected Features and group Value of the field for selected features, which could be used as an inline variable
Updating geometry as Multipolygon from Polygon table using PostGIS?
Hiking & ActivitiesHow does PostGIS store geometry data? PostGIS uses a table named geometry_columns to store metadata associated with the geometry columns in the database. The installation of PostGIS automatically creates this table. What is the difference between geometry and Geom in PostGIS? Geometry, where it assumes all of your data lives on a Cartesian plane (like
How to resolve ERROR 010271: Raster does not have an attribute table?
Hiking & ActivitiesWhy doesn’t my raster have an attribute table? You cannot build a raster attribute table for a raster dataset that is a pixel type of 32-bit floating point. You can generate an attribute table for a multidimensional dataset. Can a raster have an attribute table? Each raster dataset in a mosaic dataset can have its