Functions common to different types of geometry
Functions for the polygon layer
Tool for converting X and Y coordinate values in input geometry. Mostly used to repair geometry in cases where longitude and latitude values have been accidentally inverted.
Aby skorzystać z narzędzia, należy uruchomić edycję na warstwie, w której znajduje się interesujący nas obiekt. Następnie należy go zaznaczyć oraz wybierając odpowiednią ikonę użyć narzędzia „Zmiana współrzędnych”. Bezpośrednio po użyciu zaważymy, że obiekt zmienił swoje położenie.
A tool that allows you to create a polygon layer that is a buffer for the source layer. The buffer is generated based on a user-set value in a selected distance unit.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Buffer” tool. Then enter the name of the newly created layer in which the buffer will be created, as well as the buffer radius and the distance unit in which the radius is given. After entering the data and confirming it, a layer will be created in which the buffer will be placed.
Narzędzie generujące warstwę punktową na podstawie wierzchołków źródłowej warstwy.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Extract nodes” tool. Then choose a name for the newly created point layer. After confirming the name, a point layer is created in which the objects will reflect where the vertices of the source object existed.
A tool that allows you to change a layer with multipart geometries to a new layer whose geometries are one-piece.
To use the tool, start editing on the layer in which the multipart object of interest is located. Then select it and by selecting the appropriate icon use the „Explode geometry” tool. As soon as you use the tool, single-part features are created in the source layer, mirroring the features of the source multi-part feature.
A tool that allows you to change a layer with multipart geometries to a new layer whose geometries are one-piece.
To use the tool, start editing on the layer in which the multipart object of interest is located. Then select it and by selecting the appropriate icon use the „Explode geometry” tool. As soon as you use the tool, single-part features are created in the source layer, mirroring the features of the source multi-part feature.
A tool that creates a polygon layer based on the extent of selected objects on the source layer.
To use the tool, go to „PostGIS Operations” and select „Show Scope” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that creates a line layer representing the longest distance between two objects.
To use the tool, go to „PostGIS Operations” and select „Longest Reach” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that creates a line layer representing the shortest distance between two objects.
To use the tool, go to „PostGIS Operations” and select „Shortest Range” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that allows you to show the center of gravity of a selected object.
To use the tool, go to „PostGIS Operations” and select „Center of gravity” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that allows you to create a layer with a circle described on the selected source layer object.
To use the tool, go to „PostGIS Operations” and select „Annotate with circle” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that allows you to create a layer with a polygon described on an indicated source layer object.
To use the tool, go to „PostGIS Operations” and select „Convex” from the list of tools and select
obiekty na podstawie których ma zostać przeprowadzona operacja.
A tool that allows you to create a polygon layer from a linear source layer, taking into account the gaps between them.
To use the tool, go to „PostGIS Operations” and select „Line for polygon (holes)” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that allows you to simplify the geometry of polygon or line layers. When the tool is used, an object with fewer vertices is created in place of the source object.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Simplify object” tool. Then select the tolerance for which we want the object to be simplified. After setting the tolerance and starting the tool, we will notice the effect in the form of a reduced number of vertices of the object.
A tool that allows you to reverse the geometry of objects clockwise, by a user-specified angle. The object is rotated around its own centroid.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Rotate by a given angle” tool. After selecting the tool, select the value of rotation by which the object should rotate. Immediately after accepting the value of the rotation, we will notice the effect in the form of a rotated object.
A tool that allows you to enlarge an indicated object by the value of the coefficient indicated by the user in relation to the source object.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Resize object” tool. Then, indicate the factor by which the output object should be enlarged in relation to the source object. Immediately after accepting the magnification factor, we will notice the effect in the form of an enlarged object.
Tool that generates a point layer from the intersections of the source polygon or line layer.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then select it and by selecting the appropriate icon use the „Extract intersections” tool. Then choose a name for the newly created point layer. After confirming the name, a point layer is created where the objects will reflect where the source object intersects.
A tool that allows you to create a line layer that is an outline of selected objects on the source layer.
To use the tool, go to „PostGIS Operations” and select „Outline” from the list of tools and select the objects on the basis of which the operation is to be performed.
A tool that extracts features or portions of features on one layer that are either outside or overlapping a second polygon that acts as an overlay layer. Objects in the first layer that partially overlap with objects in the second layer are split along the boundary of those objects, and only those parts outside the second layer are kept.
To use the tool, you need to start editing on the layer in which the object you are interested in is located. Then, you should select two objects, in an important order, because the geometry of the first selected object will be subtracted from the geometry of the second selected object. Then, when you select the „Polygon Difference” tool icon, an object will be created that is part of the second selected object, without the overlapping part of the first selected object.
A tool that allows you to change the geometry of a polygon to a linear one along the boundaries of the polygons.
To use the tool, start editing on the layer in which the multipart object of interest is located. Then select it and by selecting the appropriate icon use the „Polygon on lines” tool. In the next step, enter the name of the newly created layer in which the linear objects will appear. As soon as the layer name is approved, it will be created with line features reflecting the boundaries of the polygons in the source layer.
A tool that allows you to create a line layer that is the outer outline of selected objects on the source layer.
To use the tool, go to „PostGIS Operations” and select „External contour” from the tool list and select the objects on the basis of which the operation is to be performed.
A tool that allows you to create an object that is a common part of two selected lines that are on the same layer.
To use the tool, two source objects must be selected and the „Intersect of two lines” tool selected.
A tool that allows you to move an indicated line by a selected value.
To use a tool, select a specific line and select the „Line Shift” tool, then enter the desired value and choose the shift units.
A tool that allows you to divide one line into several lines, at the intersection with the second selected line.
To use the tool, select two lines and choose the „Line Break” tool, enter the desired value and choose the units for the shift.
A tool that allows you to create a polygon layer based on selected objects of the source line layer.
To use the tool, select specific linear features and select the „Line to Polygon” tool.
A tool that allows you to create a polygon layer based on selected objects of the source line layer.
To use the tool, you must select specific linear features and choose the „Polygonize” tool.
Create a point layer with a median point
A tool that allows you to find a point exactly between two selected source points.
To use the tool, select two specific point features and select the „Mid point” tool.
A tool that allows you to draw an arc (in a newly created line layer) around a selected point.
To use a tool, select a point object and choose the „Draw Arc” tool. Then select the desired parameters and confirm the use of the tool.
A tool that creates a polygon layer from selected points on a source point layer.
To use the tool, at least three points of the source layer must be selected and the „Create polygon” tool should be used. Then select the desired parameters and confirm the use of the tool.
