Category: Geographic Information Systems

Tif file has no values

Why can’t I open a TIF file? It’s common to get an error message that the file couldn’t be opened or that it was damaged when trying to open large-sized TIFF files. We recommend using a different program, such as Photoshop, to open large TIFF files. How can I view a TIF file? For Windows:

Is the native ArcGIS database capable of doing generalized data manipulation?

What kind of database is ArcGIS? Cloud-based databases as a service ArcGIS supports the following cloud-based database services: Microsoft Azure SQL Database. Microsoft Azure Database for PostgreSQL. What is database in ArcGIS? At its most basic level, an ArcGIS geodatabase is a collection of geographic datasets of various types held in a common file system

Changing georeferenced .tif file with GDAL SetGeoTransform?

How do I read a TIFF file in Gdal? The tiff file to be opened can be downloaded here. Importing the modules: Import the gdal and ogr modules from osgeo. Opening the file: The raster dataset can be opened using gdal. open() by passing the filename and path.   What are GeoTIFF bands? While there

How to substring a number out of a string field using Python field calculator in ArcGIS?

How to create sequential numbers in a field in ArcGIS Pro using Python in the field calculator? Quote from video: Field option let's go to sequence number right click go to calculate field just double click make it massive. How do I convert a string to a number in ArcGIS? Open an ArcGIS Pro project,

QGIS: Clipping a Vector layer line on a another line?

Can you clip a Vector layer in QGIS? Click the Vector menu at the top of the QGIS program, mouse-over Geoprocessing Tools, and click Clip… There are 3 areas to this tool you will need to be concerned with: Input vector layer: the larger shapefile. Clip layer: the boundary you want to clip the input

Topological editing of vertices that are common in two adjacent polygons in QGIS

How do I edit vertices in QGIS? Quote from video: We also have the vertex tool here this is the tool that we are exploring this tool allows you to select the vertex of any geometry. And move them or delete them or even add new vertex. What is topological editing in QGIS? The Topological

Can you change the processing extent in environment settings using python to a shapefile?

How do I change the extent of a shapefile? Changing the extent of a geostatistical layer Right-click the geostatistical layer in the ArcMap table of contents for which you want to extrapolate values and click Properties. Click the Extent tab. Click a custom extent entered below in the Set the extent to list. Type the

UK region overlay on map

Can Google Maps display UK counties? Google Maps already shows the boundaries of England, Wales, Scotland and Northern Ireland, but it’d be more useful to me to see the county boundaries.  How do I get a map overlay on Google Maps? Maps are created with one layer, but you can have up to 10. On

ArcGIS web map snapping precision

What is snapping tolerance in ArcGIS? The snapping tolerance is the distance within which the pointer or a feature snaps to another location. If the element being snapped to—such as a vertex or edge—is within the distance you set, the pointer automatically snaps to the location. You set the default snap tolerance value in pixels.

Creating GeoJSON REST service

How to create JSON REST API? Build a JSON REST API $ cd ~/angular-httpclient-example. $ npm install –save json-server. $ mkdir server. $ cd server. { “products”: [] } $ cd .. $ npm install faker –save. var faker = require(‘faker’); var database = { products: []}; “scripts”: { “ng”: “ng”, $ npm run generate.

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