ToPg- Warehouse Geometry Tool

Cardo ToPg Warehouse geometry tool is an additional tool of the cardo system. This tool can generate, edit, delete and cut complex geometries. Geodata are saved on the cardo server. Topg is at this time only available in connection with user specific applications. It is, however, possible to integrate the system into all cardo systems which are expecting a redline-geometry. The applications are developed by cardo programmers, taking into account the specific requirements of the theme to be edited. The cardo administrator provides access rights for specific applications to specific users.

In the top part of the geometry tools is a two-line symbol list.

Tools in this symbol list are:

 Adjust window size
Clicking on this button adjusts the window size of the Gis viewer  so that the window can be displayed optimally in the cardo window.

New Entry
With this button the user can create a new geometry container. Click in the button first. Then, several input/ output fields occur in the top part:

• Titel
  Enter a unique name for the new geometry container.
• Source layer
  Choose from the list which geometry is to be used as data source. Only themes from the gis-layer tree are available which the user is authorized to access.
• Source column
  The list of the source column will be initialized automatically with the available field names. Choosing a key column is necessary to identify geometries to be edited uniquely. Editing geometries results in key numbers to be saved internally. Therefore it is possible to execute different editing processes like cutting and pasting.
   

List elements
Clicking on this button lists all available geometry containers. Selection of a specific container is done by clicking on it with the left mouse button. The list will be hidden after choosing a container and additional settings of the container will be displayed.

Add elements (Mode:  use free hand geometry for selection of working geometries from the source layer)
With this button the user can select and add objects which are cut by free hand geometries to the geometry container. First, create the free hand geometry and activate the the button with a left mouse click. The result of the search will be shown in color.

Add elements (Mode:  use free hand geometry directly as a working geometry)
By using this button, all areas which touch the free hand geometry on a specific point are directly merged with free hand geometry. The result (Polygon) is added to the active geometry container.

Subtract elements (Mode: use free hand geometries for selection of working geometries from source layer)
This button enables the user to subtract and delete all free hand geometries which are cut by a point. For that, create a free hand geometry and activate the geometry with a left mouse click.  The color will disappear.

Subtract elements (Mode: use free hand geometries directly as working geometries)
This option cuts a specific geometry from the selected area. A polygon is created with a so called island.

Mode: Use free hand geometry for the selection of working geometry from the source layer or  Mode: use free hand geometry directly as working geometry
Clicking on this switch determines whether are not a free hand tool should be used for the selection or directly for the working geometry.

Delete parts of the element, use free hand geometry for selection
This button creates the possibility to delete part of a multipolygons. Create a free hand geometry which clearly marks the area to be deleted. By clicking on the switch with the left mouse button the function is started.

 Delete the entire entry
Clicking on the switch deletes the active geometry container. It is not possible to undo this action.

 Delete all geometries for this entry
This button  enables the user to delete all geometries in the active container. The container itself cannot be deleted.

 Delete only sub data sets for this entry
The sub data sets save all actions were executed for active geometry containers.  If several merges have been done and did not yield a satisfactory outcome, click on the button to delete sub data sets and redo the action.

  Reload last geometry
Clicking on this button reverses the last action which has been executed in the geometry container. Deleting geometries and deleting sub data sets cannot be reversed. A physically deleted geometry can therefore not be restored.

 Edit Vertex
Clicking on this button will show the vertices of all geometry objects.

The following actions are possible:

• Move Vertex
  Click on the vertex and drag/drop the vertex to the new position by keeping the left mouse button pressed. 
• Add Vertex
  Click on the conection of two vertices with the left mouse button. The added point can then be moved to the correct position.
• Delete Vertex
  Vertices are deleted by clicking on the point with the left mouse button and pressing the shift key at the same time.

To finalize editing of bases, click on the entry Edit Vertices (popup menu) with the right mouse button. Double clicking with the left mouse button also ends the editing of vertices.

Change geometries to line
Clicking on this button converts the existing geometry to a line.

 Convert geometry to area
Clicking on this button converts the existing geometry to a plane.

Catch end points

This button enables the user to catch endpoints of line geometries.  After clicking in the button a dialog box appears where the user initiates the calculation of end points by clicking on ok. If end points are found, snapping to the end points is executed.