How do I create a new feature?

Prerequisites

  1. Enable editing mode () in the toolbar.
  2. Select the layer you want to create in. This can be done in the layer control (left). Select for example the "Structures" layer.
    Hint: you can only create new features in vector-layers.

Creating a new feature

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. At the top of this menu, you will see "Create new feature". Select this option to start.
  2. Create: After the "Create new feature" option has been selected, just start clicking to place new points on the map.
  3. Save: Click the RIGHT mouse button again, and a new menu will appear. Select the option "Save feature".

How do I edit an existing feature?

Prerequisites

  1. Enable editing mode () in the toolbar.
  2. Select the feature you want to edit on the map (left mouse click).
    Hint: by selecting a feature, it will become yellow.

Editing the selected feature

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. Select "Start editing" to start.

    Hint: as long as the orange edges and points are drawn, the feature is in editing mode.
  2. Drag a point: You can now drag the endpoints of the geometry to other locations.
  3. Insert a point: Click the RIGHT mouse button on one of the orange edges. Then select "Insert point".
  4. Remove a point: Click the RIGHT mouse button on one of the endpoints. Then select "Remove point".
  5. Undo last step: Click the RIGHT mouse button, then select "Undo last step". This will make your last change undone.
  6. Save: Click the RIGHT mouse button again, and a new menu will appear. Select the option "Save feature".

How do I delete an existing feature?

Prerequisites

  1. Enable editing mode () in the toolbar.
  2. Select the feature you want to delete on the map (left mouse click).
    Hint: by selecting a feature, it will become yellow.

Deleting the selected feature

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. Select "Delete feature".

How do I create a donut polygon?

Prerequisites

  1. Enable editing mode () in the toolbar.
  2. Select the feature you want to edit on the map (left mouse click).
    Hint: by selecting a feature, it will become yellow.

Editing the selected feature, to create a hole in it

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. Select "Start editing" to start.

    Hint: as long as the orange edges and points are drawn, the feature is in editing mode.
  2. Create hole: Click the RIGHT mouse button, and a menu will appear. Select "Create hole".
  3. Place points: Click new points inside the feature's border.
  4. Stop inserting: Click the RIGHT mouse button, and select "Stop inserting".
    Hint: you are now in normal editing mode. This means you can drag points around, etc.
  5. Save: Click the RIGHT mouse button again, and a new menu will appear. Select the option "Save feature".

How do I use snapping?

Prerequisites

  1. Select the layer you want to use snapping in. This can be done in the layer control (left). Select for example the "Structures" layer.
  2. Enable snapping for the selected layer ().
  3. Enable editing mode () in the toolbar.

Create a new feature with snapping

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. At the top of this menu, you will see "Create new feature". Select this option to start.
  2. Create: After the "Create new feature" option has been selected, just start clicking to place new points on the map.
  3. Save: Click the RIGHT mouse button again, and a new menu will appear. Select the option "Save feature".

How do I split a polygon?

Prerequisites

  1. Enable split-polygon mode () in the toolbar.
  2. Select the polygon feature you want to split on the map (left mouse click).
    Hint: by selecting a feature, it will become yellow.

Split the polygon

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. Select the "Start splitting" option to start.
  2. Create split-line: Start clicking to place new points on the map. The line you create here will split the selected polygon.
  3. Save: Click the RIGHT mouse button again, and a new menu will appear. Select the option "Save splitting".

How do I merge polygons?

Prerequisites

  1. Enable merge-polygon mode () in the toolbar.
  2. Select the set of polygon features you want to merge on the map (left mouse click).
    Hint: by selecting a feature, it will become yellow.

Merging the selected polygons

  1. Start: Simply click the RIGHT mouse button on the map, and a menu will appear. Select "Merge polygons".

The movies you see here, require the adobe flash plugin to play.

How do I ...
create a new feature
create a donut polygon
use snapping
split features
merge features

These movies were created using Geomajas 1.3.1. That is why they look a bit different from this sample.

General hints