4. Graphics and numbering of flight lines and images

As soon as an image has been captured it becomes apparent through its color and symbol representation.

During flight and in simulation mode, a blue line flashes briefly under the line deviation indicator above the main display window to show the command for the release of a picture has been sent to the camera. As soon as the picture has been taken and successfully saved, a green line briefly flashes under the line deviator. Some cameras operate so fast that only the green line will be visible.

The image symbol will switch from gray to green as soon as the image has been taken and saved.

In the example above, all images of lines 1 to 13 have been captured and those of lines 14 to 27 have not yet been captured.

4.1. Colors and symbols for lines and images

Line	Image	Color description
		The lines/images have not yet been taken.
		All images/lines were taken.
		The images/lines were taken. However, the operator designated them for retake, possibly due to adverse conditions like excessive fog. Under more favorable weather conditions, these images will be retaken.
		The images/lines were taken. However, the images/lines are colored orange since the sensor issued warnings (underexposure or other warnings).
		An error occured. The sensor did not reply that the image/line was taken. Therefore, the images/lines are colored red. The assistant needs to inspect the system components, e.g. the status of the camera and INSS.

As images and LiDAR lines are acquired independently by separate sensors, the resulting dot and line color combinations depend on the collected data. The the following example the green dots indicate successfully captured images while the red line indicates an error originating from a secondary sensor (e.g. LiDAR) or sensor system (e.g. mount):

4.2. Filtered display of images

The following buttons are available to filter information of the displayed images.

	When a line is selected, only the images of this line are displayed.
	Click the above button again to display the images of all lines. Click a second time to return to the single line view.
	The button with the green circle can be used to show or hide all image centers that have already been taken.
	The button with the gray circle can be used to show or hide all image centers that have not yet been taken.
	The button with the yellow circle can be used to show or hide the centers of all images marked to be retaken or taken whilst a warning or an error message was issued (yellow, orange and red circles)

Hint

It is possible to reset the status of a flight line or of images on specific flight lines, even during flight.

4.3. Line numbering scheme

Each flight line number consists of a parent number and a segment number.

Example:

In the picture below there are three lines (61, 62, 63).

Line 61 has only a single segment.

Line 62 was initially drawn like Line 61, extending from the mountain top into the plain. Due to a smaller footprint in the mountainous area, line 62 was broken into two segments. The numbering now consists of a combination of the parent ID (62) and segments: 62-1 and 62-2.

Line 63 is a polyline. It is composed of a sequence of six lines: 63-1, 63-2, 63-3, 63-4, 63-5, 63-6.

4.3.1. Use in other systems

The flight line ID combining the line and segment numbers has been made compatible for RiACQUIRE and all other systems.

UltraCam, for instance, allows to have an identification of line ID and segment ID.

Other systems allow only line numbers. In this case the line number is multiplied with 10’000 and then the segment number is added (line 62-1 turns into 620001 and 62-2 into 620002).

Important

The export from RiPROCESS to LAS fails because LAS does not support such high line numbers.

Hint

When only single lines are used the segment number is always 1. In that case, disabling the segment number in the RiACQUIRE record is recommended.