Snapshotquery - quercus SmartLoop TS Programming Manual

QuercusVL Programming Manual
Type: 36
●
Message Data:
●
Id: incidence identifier.
●
ImageIndex (ImgId): number of image inside the incidence image collection.
●
Offset: start position (in the image buffer) of the packet to transfer; in bytes.
●
Length: maximum size of the packet to transfer.
●
Answer
Type: 68
●
Message Data:
●
Size: total image size; in bytes.
●
Length: length of the transferred packet; in bytes.
●
Buffer: packet data. Only valid the first Length packets.
●

4.7.6. SnapshotQuery

Query to receive a snapshot (general system status) of the unit. It returns a captured JPEG
image of 0.3Mp (640 pixels wide and 480 high), and a complete status of detectors, traffic
lights and digital inputs and outputs.
The image content and the focus value (current digital focus coefficient) will vary depending on
the value of the query parameters:
Zoom to false, incorrect rectangle: the image obtained corresponds to the entire image
●
captured by the unit. The focus value will not be calculated (-1).
Zoom to false, correct rectangle: the image obtained corresponds to the entire image
●
captured by the unit. The focus value will be calculated from the rectangle in the image.
Zoom to true, incorrect rectangle: incorrect combination; returns false.
●
Zoom to true, correct rectangle: the image obtained corresponds to a zoomed zone of
●
Quercus Technologies
147
4 2
Id
ImgId
4 4
Size Length
4 4
Offset Length
64000
Buffer