Creating Contour Lines in QGIS
Contour lines are lines that connect points of equal elevation on a map, allowing the terrain’s relief to be visualized. A DEM (Digital Elevation Model) is a raster representation of … Read more
shapefile
Exploring Geospatial Data Formats
The geospatial domain is vast, and the way data is stored, accessed, and manipulated plays a pivotal role in how efficiently we can utilize it. Different projects and applications might … Read more
11. GIS Book: Frequently asked questions
Which zone do I select if my study area shares two UTM zones? What you usually do in this case is work with the UTM zone that contains most of … Read more
9. GIS Book: Spatial analyst
Spatial analysis is the process of modeling and obtaining results through computer processing and then examining and interpreting the results of the model. Spatial analysis is useful for assessing suitability … Read more
7. GIS Book: Tables administration
Tables are used to store descriptive information. In ArcGIS they are usually linked to a vector layer or appear individually. The alphanumeric information forming a table can be stored as … Read more
6.4. GIS Book: Working with lines
To digitize lines, select the required layer in the Create Features panel (e. g. road_network). In the Construction Tools section, click Line as shown in Figure 17. To draw the … Read more
6.3. GIS Book: Working with points
To start digitizing the points, select a point layer (e. g. buildings) in the Create Features panel. It is advisable to make sure that the Point tool is marked in … Read more
6.2. GIS Book: Shapefiles edition
To create new elements or edit existing ones within a shapefile, return to the ArcMap application and add the shapefiles generated as layers using the Add Data icon in the … Read more
6. GIS Book: Generation of vector entities
6.1. GIS Book: Creating shapefiles The ArcCatalog application (open from the Windows Start menu) is used to create new vector entities such as points, lines or polygons. On the left-hand … Read more
Creating shapefiles in QGIS 3
QGIS 3 Girona is the most recent version of this powerful free software, with notable improvements in the administration, visualization, and consultation of files. In this opportunity the creation of … Read more
Convert SHP files to GPX in QGIS 3
Apparently converting shapefile vector layers (*.shp) to GPX format is often a complicated task. But in QGIS is easier than you think. Usually, at some point is required to move … Read more