Working in Ortho Mode

The following retouch operations are available in Ortho mode:

§  Clean Cars – Remove all elements inside a defined area, and texture the drawn polygon area using only photos from the area that don’t include moving cars. This option offers a solution to undesirable effects in the reconstruction (e.g., a car that is partially sunk in the road) that can occur when capturing an area with moving cars, since only some of the captured photos included the cars, while others did not.

§  Clean Edges – Remove artifacts along the edges of a model.

§  Import Layer – Import a polyline or polygon feature layer with retouch polylines/polygons for cleaning edges or cars. The following layer formats are supported: .shp, sqlite, and gpkg.

To perform a retouch operation in Ortho mode:

1.     Select one of the retouch operations in the Manual Retouch Toolbox, and then do any of the following:

§  Clean Cars (Shortcut key: c)

i.      Draw a polygon around the area that you want to clean.

ii.     Right-click to complete. The buffers are automatically set to 10 meters above/below the surface.

§  Clean Edges (Shortcut key: e)

i.      Set a buffer for the retouch polygon upwards or frontwards and downwards or backwards in the direction of the polygon’s normal, slide the Up/Front buffer and Down/Back buffer sliders. If a polygon’s elevation angle to the ground is less than 20 degrees, the polygon is extruded vertically. If the polygon points were created in a clockwise orientation, then the front is the side facing the user.

ii.     Draw a polyline along the edge you want to clean. Right-click to complete. A polygon is generated with the base line on the ortho surface and the top line, one meter above the surface. All artifacts with normal vertical to the polygon are cleaned.

§  Import Layer (Shortcut key: i)

i.      Click Import Layer, and then Browse, and browse to the required layer. The following layer formats are supported: .shp, sqlite, and gpkg. The retouch polygons included in the layer are added to the Manual Retouch list.

2.     To select how to display the drawn polygon, click the Volume icon (Shortcut key: o):

§  Volume Colorize – Mark the area for retouching by colorizing all parts of the mesh contained within the extruded polygon.

§  Volume Polygon – Mark the area for retouching by displaying 3D polygons based on the extruded polygon.

§  Volume No – Mark the area for retouching only with a 2D polygon.

3.     To adjust the length to extrude the retouch polygon upwards or frontwards and downwards or backwards in the direction of the polygon’s normal, select the polygon and in the Manual Retouch Toolbox, slide the Front buffer and Back buffer sliders. If a polygon’s elevation angle to the ground is less than 20 degrees, the polygon is extruded vertically. If the polygon points were created in a clockwise orientation, then the front is the side facing the user.

4.     To select the polygon for editing after it is drawn, click Select and Edit (Shortcut key: s), and then select the retouch object for editing. Use the mini toolbar to edit the polygon. See "Editing Polylines and Polygons" in this chapter for information. You can also view and edit the manual retouch object’s properties in the Manual Retouch list. See "Modifying Retouch Objects" in this chapter for information.