TLcdLASModelDescriptor (LuciadFusion API documentation)

java.lang.Object
- com.luciad.model.TLcdModelDescriptor
- - com.luciad.format.lidar.ALcdLIDARModelDescriptor
  - - com.luciad.format.las.TLcdLASModelDescriptor

All Implemented Interfaces:

ILcdDataModelDescriptor, ILcdModelDescriptor, Serializable
```
public class TLcdLASModelDescriptor
extends ALcdLIDARModelDescriptor
```
Model descriptor for data decoded from a LASer (.las) file.
- It contains various fields available in the .las header.
- It contains the variable-length records.
- It implements ILcdDataModelDescriptor and getPropertyRange to see what properties are available in this model.
Data model

Although the elements in the model are not data objects themselves, you can still use the data model to access properties of individual points when filtering during decoding, or you can use it to build expressions for use in styling.

The data model has a single type that consists of the properties available in the source file. Only the properties available in the source file are available in the data type, for example if a file does contain color information, but does not contain infra-red information, the data type will have a COLOR property, but not an INFRARED property.

You can find the names of all the possible properties as constant fields in TLcdLASModelDescriptor: COLOR, INTENSITY, CLASSIFICATION, INFRARED, and so on.

You can use getPropertyRange(com.luciad.datamodel.TLcdDataProperty) to get the extent (minimum and maximum value) of a specific property in this specific model.

LASer specification

See also http://www.asprs.org/Committee-General/LASer-LAS-File-Format-Exchange-Activities.html for more details on the LAS specification.
Since:

2014.0

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class TLcdLASModelDescriptor.VariableLengthRecord
Describes a variable-length record from a .las file.

Nested Classes
Modifier and Type	Class and Description
`static class`	`TLcdLASModelDescriptor.VariableLengthRecord` Describes a variable-length record from a `.las` file.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`CLASSIFICATION` The Classification property; a `Byte`.
`static String`	`CLASSIFICATION_FLAGS` The Classification Flags property; a `Byte`.
`static String`	`COLOR` The R; G and B properties; as a `Color`.
`static String`	`EDGE_OF_FLIGHT_LINE` The Edge of Flight Line property; a `Boolean`.
`static String`	`EXTRA_BYTES` Any extra bytes for a point; a `byte array`.
`static String`	`GPS_TIME` The GPS Time property; a `Double`.
`static String`	`HEIGHT` The height of the point; in meters above ellipsoid; a `Float`.
`static String`	`INFRARED` The NIR property; an `Integer`.
`static String`	`INTENSITY` The Intensity property; an `Integer`.
`static String`	`LAS_TYPE_NAME` The type name of the data source.
`static String`	`NUMBER_OF_RETURNS` The Number of Returns property; an `Integer`.
`static String`	`POINT_SOURCE_ID` The Point Source ID property; an `Integer`.
`static String`	`RETURN_NUMBER` The Return Number property; an `Integer`.
`static String`	`RETURN_POINT_WAVEFORM_LOCATION` The Return Point Waveform Location property; a `Float`.
`static String`	`SCAN_ANGLE` The Scan Angle Rank property; a `Float`.
`static String`	`SCAN_DIRECTION` The Scan Direction Flag property; a `Boolean`.
`static String`	`SCANNER_CHANNEL` The Scanner Channel property; a `Byte`.
`static String`	`USER_DATA` The User Data property; a `Byte`.
`static String`	`XT` The Xt property; a `Float`.
`static String`	`YT` The Yt property; a `Float`.
`static String`	`ZT` The Zt property; a `Float`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Date`	`getCreationDate()` Returns the date of creation as specified in the `.las` header, combined from day of year and year.
`TLcdDataModel`	`getDataModel()` Returns the data model that describes the individual points in this model.
`TLcdDataType`	`getDataType()` Returns the single data type that describes the individual points in the elements of this model.
`String`	`getGeneratingSoftware()` Returns the Generating Software as specified in the `.las` header.
`Set<TLcdDataType>`	`getModelElementTypes()` Since the elements in the model are not `ILcdDataObject` themselves, this method returns `null`.
`Set<TLcdDataType>`	`getModelTypes()` Returns a single data type that describes the individual points in the elements of this model.
`long`	`getNumberOfPoints()` Returns the Number Of Point Records as specified in the `.las` header.
`long`	`getProjectId1()` Returns the Project ID - GUID data 1 as specified in the `.las` header.
`int`	`getProjectId2()` Returns the Project ID - GUID data 2 as specified in the `.las` header.
`int`	`getProjectId3()` Returns the Project ID - GUID data 3 as specified in the `.las` header.
`int[]`	`getProjectId4()` Returns the Project ID - GUID data 4 as specified in the `.las` header.
`ILcdInterval`	`getPropertyRange(TLcdDataProperty aProperty)` Returns the range of values for the given property for this model.
`int`	`getSourceId()` Returns the File Source ID as specified in the `.las` header.
`String`	`getSystemIdentifier()` Returns the System Identifier as specified in the `.las` header.
`Collection<TLcdLASModelDescriptor.VariableLengthRecord>`	`getVariableLengthRecords()` Returns the variable-length records (including extended) available in the `.las` file.
`String`	`getVersion()` Returns the version of the `.las` file (combined from major and minor for example, "1.3").

Methods inherited from class com.luciad.model.TLcdModelDescriptor
getDisplayName, getSourceName, getTypeName, setDisplayName, setSourceName, setTypeName, sourceNameToDisplayName

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.luciad.model.ILcdModelDescriptor
getDisplayName, getSourceName, getTypeName

- Field Detail
  - LAS_TYPE_NAME
```
public static final String LAS_TYPE_NAME
```
    The type name of the data source.
    
    See Also:
    
    Constant Field Values
  - HEIGHT
```
public static final String HEIGHT
```
    The height of the point; in meters above ellipsoid; a Float.
    
    See Also:
    
    Constant Field Values
  - INTENSITY
```
public static final String INTENSITY
```
    The Intensity property; an Integer.
    
    See Also:
    
    Constant Field Values
  - RETURN_NUMBER
```
public static final String RETURN_NUMBER
```
    The Return Number property; an Integer.
    
    See Also:
    
    Constant Field Values
  - NUMBER_OF_RETURNS
```
public static final String NUMBER_OF_RETURNS
```
    The Number of Returns property; an Integer.
    
    See Also:
    
    Constant Field Values
  - CLASSIFICATION_FLAGS
```
public static final String CLASSIFICATION_FLAGS
```
    The Classification Flags property; a Byte.
    
    See Also:
    
    Constant Field Values
  - SCANNER_CHANNEL
```
public static final String SCANNER_CHANNEL
```
    The Scanner Channel property; a Byte.
    
    See Also:
    
    Constant Field Values
  - SCAN_DIRECTION
```
public static final String SCAN_DIRECTION
```
    The Scan Direction Flag property; a Boolean.
    
    See Also:
    
    Constant Field Values
  - EDGE_OF_FLIGHT_LINE
```
public static final String EDGE_OF_FLIGHT_LINE
```
    The Edge of Flight Line property; a Boolean.
    
    See Also:
    
    Constant Field Values
  - CLASSIFICATION
```
public static final String CLASSIFICATION
```
    The Classification property; a Byte.
    
    See Also:
    
    Constant Field Values
  - USER_DATA
```
public static final String USER_DATA
```
    The User Data property; a Byte.
    
    See Also:
    
    Constant Field Values
  - SCAN_ANGLE
```
public static final String SCAN_ANGLE
```
    The Scan Angle Rank property; a Float.
    
    See Also:
    
    Constant Field Values
  - POINT_SOURCE_ID
```
public static final String POINT_SOURCE_ID
```
    The Point Source ID property; an Integer.
    
    See Also:
    
    Constant Field Values
  - GPS_TIME
```
public static final String GPS_TIME
```
    The GPS Time property; a Double.
    
    See Also:
    
    Constant Field Values
  - COLOR
```
public static final String COLOR
```
    The R; G and B properties; as a Color.
    
    See Also:
    
    Constant Field Values
  - INFRARED
```
public static final String INFRARED
```
    The NIR property; an Integer.
    
    See Also:
    
    Constant Field Values
  - RETURN_POINT_WAVEFORM_LOCATION
```
public static final String RETURN_POINT_WAVEFORM_LOCATION
```
    The Return Point Waveform Location property; a Float.
    
    See Also:
    
    Constant Field Values
  - XT
```
public static final String XT
```
    The Xt property; a Float.
    
    See Also:
    
    Constant Field Values
  - YT
```
public static final String YT
```
    The Yt property; a Float.
    
    See Also:
    
    Constant Field Values
  - ZT
```
public static final String ZT
```
    The Zt property; a Float.
    
    See Also:
    
    Constant Field Values
  - EXTRA_BYTES
```
public static final String EXTRA_BYTES
```
    Any extra bytes for a point; a byte array.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getDataModel
```
public TLcdDataModel getDataModel()
```
    Returns the data model that describes the individual points in this model.
    See class javadoc for more details on the data model.
    
    Specified by:
    
    getDataModel in interface ILcdDataModelDescriptor
    
    Overrides:
    
    getDataModel in class ALcdLIDARModelDescriptor
    
    Returns:
    
    the data model that describes the elements of the model
  - getModelElementTypes
```
public Set<TLcdDataType> getModelElementTypes()
```
    Since the elements in the model are not ILcdDataObject themselves, this method returns null.
    See class javadoc for more details on the data model.
    
    Specified by:
    
    getModelElementTypes in interface ILcdDataModelDescriptor
    
    Overrides:
    
    getModelElementTypes in class ALcdLIDARModelDescriptor
    
    Returns:
    
    null, as the elements in the model are not ILcdDataObject themselves.
  - getModelTypes
```
public Set<TLcdDataType> getModelTypes()
```
    Returns a single data type that describes the individual points in the elements of this model.
    See class javadoc for more details on the data model.
    
    Returns:
    
    The single data type that describes the individual points in the elements of this model.
  - getDataType
```
public TLcdDataType getDataType()
```
    Returns the single data type that describes the individual points in the elements of this model.
    This is the same data type as in getModelTypes().
    See class javadoc for more details on the data model.
    
    Returns:
    
    The single data type that describes the individual points in the elements of this model.
  - getPropertyRange
```
public ILcdInterval getPropertyRange(TLcdDataProperty aProperty)
```
    Returns the range of values for the given property for this model.
    The ranges are based on 10% of the points, randomly chosen.
    Only returns an interval for properties with numeric values, otherwise returns null.
    Also returns null if the property is not available in the data type of this model.
    
    Specified by:
    
    getPropertyRange in class ALcdLIDARModelDescriptor
    
    Parameters:
    
    aProperty - the property to get the range for.
    
    Returns:
    
    The range, or null if the property is not available in the file, or if the property does not have a range.
  - getSourceId
```
public int getSourceId()
```
    Returns the File Source ID as specified in the .las header.
    
    Returns:
    
    The source id.
  - getProjectId1
```
public long getProjectId1()
```
    Returns the Project ID - GUID data 1 as specified in the .las header.
    
    Returns:
    
    The project id 1.
  - getProjectId2
```
public int getProjectId2()
```
    Returns the Project ID - GUID data 2 as specified in the .las header.
    
    Returns:
    
    The project id 2.
  - getProjectId3
```
public int getProjectId3()
```
    Returns the Project ID - GUID data 3 as specified in the .las header.
    
    Returns:
    
    The project id 3.
  - getProjectId4
```
public int[] getProjectId4()
```
    Returns the Project ID - GUID data 4 as specified in the .las header.
    
    Returns:
    
    The project id 4.
  - getVersion
```
public String getVersion()
```
    Returns the version of the .las file (combined from major and minor for example, "1.3").
    
    Returns:
    
    The version.
  - getSystemIdentifier
```
public String getSystemIdentifier()
```
    Returns the System Identifier as specified in the .las header.
    
    Returns:
    
    The system identifier.
  - getGeneratingSoftware
```
public String getGeneratingSoftware()
```
    Returns the Generating Software as specified in the .las header.
    
    Returns:
    
    The generating software.
  - getCreationDate
```
public Date getCreationDate()
```
    Returns the date of creation as specified in the .las header, combined from day of year and year.
    
    Returns:
    
    The creation date.
  - getNumberOfPoints
```
public long getNumberOfPoints()
```
    Returns the Number Of Point Records as specified in the .las header.
    Note: the actual amount of points in the model may be different, for example due to filtering or setting a maximum.
    
    Returns:
    
    The number of points in the file.
  - getVariableLengthRecords
```
public Collection<TLcdLASModelDescriptor.VariableLengthRecord> getVariableLengthRecords()
```
    Returns the variable-length records (including extended) available in the .las file.
    
    Returns:
    
    The variable-length records.

LuciadFusionClass TLcdLASModelDescriptor

Data model

LASer specification

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class com.luciad.model.TLcdModelDescriptor

Methods inherited from class java.lang.Object

Methods inherited from interface com.luciad.model.ILcdModelDescriptor

Field Detail

LAS_TYPE_NAME

HEIGHT

INTENSITY

RETURN_NUMBER

NUMBER_OF_RETURNS

CLASSIFICATION_FLAGS

SCANNER_CHANNEL

SCAN_DIRECTION

EDGE_OF_FLIGHT_LINE

CLASSIFICATION

USER_DATA

SCAN_ANGLE

POINT_SOURCE_ID

GPS_TIME

COLOR

INFRARED

RETURN_POINT_WAVEFORM_LOCATION

XT

YT

ZT

EXTRA_BYTES

Method Detail

getDataModel

getModelElementTypes

getModelTypes

getDataType

getPropertyRange

getSourceId

getProjectId1

getProjectId2

getProjectId3

getProjectId4

getVersion

getSystemIdentifier

getGeneratingSoftware

getCreationDate

getNumberOfPoints

getVariableLengthRecords