====== Bentley ContextCapture ======

This page describes the original Bentley ContextCapture aerial mapping resources for Orbit import. 

Use the corresponding [[201:desktop_ext:mapping:manage_import:templates|Orbit Import Template]] to import the described original data. \\
It is recommend to read first [[201:technology:3d_mapping:about_resources|]].

===== Planar Images =====

=== Image files ===

  * Image type : Preferably undistorted (corrected distortion and Central Principal Point) planar images.
  * File format : Each image is one *.jpg file.
  * File name : Corresponds to the name in the image positions file, see below.


===  Image Positions File and Camera Calibration ===
*.xml Bentley export __//X-right Y-down Yaw, Pitch, Roll angles//__\\
Camera calibration information is included in the Bentley export.
  * Value of Coordinates "X;Y;Z" : Any [[201:technology:core:crs|supported coordinate system]], decimal notation, without thousands separator.
  * Value of Angles "Yaw, Pitch, Roll" : [[[[201:technology:3d_mapping:supported_resources]], degrees.
  * File format : One *.xml file (UAS module allows import of one camera only so there should be only one Photogroup in the file)

<code>
<?xml version="1.0" encoding="utf-8"?>
<BlocksExchange version="3.2">
	<SpatialReferenceSystems>
		<SRS>
			<Id>0</Id>
			<Name>ECEF</Name>
			<Definition>EPSG:4978</Definition>
		</SRS>
		<SRS>
			<Id>1</Id>
			<Name>WGS 84 / UTM zone 36N (EPSG:32636)</Name>
			<Definition>EPSG:32636</Definition>
		</SRS>
	</SpatialReferenceSystems>
	<Block>
		<Name>Block_9 (Block_5 (Test) - extract)</Name>
		<Description>Imported from &apos;Block_5 (Test) - extract - export.xml&apos;
Extracted from Block_5 (Test)</Description>
		<Type>Aerial</Type>
		<SRSId>1</SRSId>
		<Photogroups>
			<Photogroup>
				<Name>Photogroup 1</Name>
				<ImageDimensions>
					<Width>4864</Width>
					<Height>3232</Height>
				</ImageDimensions>
				<CameraModelType>Perspective</CameraModelType>
				<CameraModelBand>Visible</CameraModelBand>
				<FocalLength>405.922407913922</FocalLength>
				<SensorSize>48.64</SensorSize>
				<CameraOrientation>XRightYDown</CameraOrientation>
				<PrincipalPoint>
					<x>2616.266018429</x>
					<y>1533.8014861345</y>
				</PrincipalPoint>
				<Distortion>
					<K1>-0.173537607271</K1>
					<K2>3.324546755555</K2>
					<K3>0</K3>
					<P1>7.495643e-05</P1>
					<P2>-0.00043507451</P2>
				</Distortion>
				<AspectRatio>1</AspectRatio>
				<Skew>0</Skew>
				<Photo>
					<Id>0</Id>
					<ImagePath>D:\test_path\138246_0.jpg</ImagePath>
					<Component>1</Component>
					<Pose>
						<Rotation>
							<Yaw>-98.4491894420675</Yaw>
							<Pitch>-40.2389494372481</Pitch>
							<Roll>-6.90985883718705</Roll>
						</Rotation>
						<Center>
							<x>696154.817953712</x>
							<y>3450233.96581755</y>
							<z>2440.958194023</z>
						</Center>
						<Metadata>
							<SRSId>0</SRSId>
							<Rotation>
								<Yaw>178.488269816683</Yaw>
								<Pitch>-24.7260201589946</Pitch>
								<Roll>62.188024775886</Roll>
							</Rotation>
							<Center>
								<x>4472962.33656</x>
								<y>3138772.69169</y>
								<z>3283270.64096</z>
							</Center>
						</Metadata>
					</Pose>
					<ExifData/>
				</Photo>
				<Photo>
				...
				</Photo>
				...
			</Photogroup>
		</Photogroups>
	</Block>
</BlocksExchange>			
</code> 

===== LiDAR or Point Cloud generated by Dense Matching (optional) =====

=== Point cloud files ===

  * File format : One or more *.las or *.laz files.
  * File structure : Las version 1.2.
  * Value of Latitude, Longitude, Elevation : Same CRS as Image Positions.