8.4. GIS Book: Merge
Merge tool can be used to merge two or more entities into a single layer. All merging entities must be of the same type (points, lines or polygons). Caution should … Read more
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8.3. GIS Book: Clip
The Clip tool allows you to trim part of an entity based on the perimeter of a polygonal layer (Figure 35). The polygonal layer is used to limit the extent … Read more
8.2. GIS Book: Intersect
The intersection allows you to search for the area of two or more overlapping layers. The Intersect tool calculates the intersection area in a new layer. To use the tool, … Read more
8. GIS Book: Geoprocessing tools
GIS tools undoubtedly automate processes that used to take a long time to carry out. In general, manual tasks often require a great deal of effort to complete. Geoprocessing is … Read more
7.4. GIS Book: Operations
The Field Calculator performs simple and complex calculations for both text strings and mathematical operations. Note that the modifications affect all records (if none is selected) or only the selected … Read more
7.3. GIS Book: Calculation of XY coordinates
The Add XY Coordinates tool allows the values of the XY coordinates to be calculated (if the layers have the Z coordinate (height), it can also be calculated). To execute, … Read more
7.2. GIS Book: Calculation of area, perimeter and length
To calculate the area, perimeter or length of the different entities, it is necessary to take into account the geometry of each layer. First, ensure that the participant layer has … 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
6.7. GIS Book: Project a layer to another reference system
The Project tool allows you to project spatial data from one coordinate system to a different coordinate system. Practice: A layer projected with the coordinate system “WGS 1984 UTM Zone … Read more
6.6. GIS Book: Define projection of a layer
At certain times when loading new layers into ArcMap, a warning message (“The following data sources you added are missing spatial reference information. This data can be drawn in ArcMap, … Read more
6.5. GIS Book: Working with polygons
The process of digitizing polygons is similar to that of polylines. In the Create Features panel, select the layer (e. g. plant_cover) and choose Polygon in the Construction Tools. To … Read more