Annotation-Zones-Draw-Polygon

←↑↓→

Polygons

Zones that have a Polygon shape can be any polygon, and are not limited to convex polygons.

Drawing a Polygon

To draw a polygon, first press the "Polygon" button in the left panel. Once the button is outlined in red, select a zone type for the new zone from the list above the it. To draw multiple normal zones of that type in a row, you can toggle on the draw mode by double clicking on the zone type. If there is a hotkey associated with the zone type, you also can press the hotkey toggle the draw mode.

Polygon zones are drawn by placing the vertices of the polygon in order. Once the shape and zone type are selected, you can draw a polygon by clicking at each location you want a vertex. For the last vertex, double click to finish the shape.

If GEDI is in toggled drawing mode, you can then draw more zones of the same shape and type. To turn off toggled drawing mode, you can click the zone type name once, or press the hotkey for that zone type if there is one.

Moving a Vertex

To move a vertex of a polygon, first select the polygon by clicking inside the zone once or by dragging a box around it. Grab a vertex by mousing over it until the cursor changes to show arrow pointing inward and pressing the left mouse button. Drag the mouse to the new location of the vertex and release the left mouse button.

Adding a Vertex

To add a vertex to a polygon, first select the polygon by clicking inside the zone or by dragging a box around it. Hold the Ctrl key, and move the mouse close to the side where you want the new vertex to be added. Once the side is highlighted, click with the mouse. A new vertex will be added between the two vertices that the highlighted side connected. You will not always be able to add the vertex in the exact place you want, so you may have to move the new vertex to the place you want it to be.

Deleting a Vertex

To delete a vertex of a polygon, first select the polygon by clicking inside the zone or by dragging a box around it. Then, select the vertex that you want to delete by clicking on it. Once the vertex is selected, press the Delete key on you keyboard to remove the vertex. Warning: if you select a polygon but don't select a vertex and press Delete, then the entire zone will be deleted.