Extrair raster

Recortar raster extensão

Clips qualquer GDAL suportado raster arquivo para um dado extensão

Este algoritmo é derivado do GDAL grade utilitário <https://www.gdal.org/gdal_grid.html>`_ .

Menu de seleção padrão :`raster–> extração

Parâmetros

Label

Nome

Type

Descrição

Input layer

INPUT

[raster]

The input raster

Clipping extent

EXTENT

[extent]

Extent that should be used for the output raster. Only pixels within the specified bounding box will be included in the output.

Assign a specified nodata value to output bands

Opcional

NODATA

[number]

Default: None

Defines a value that should be inserted for the nodata values in the output raster

Additional creation options

Opcional

OPTIONS

[string]

Default: ‘’

For adding one or more creation options that control the raster to be created (colors, block size, file compression…). For convenience, you can rely on predefined profiles (see GDAL driver options section).

Output data type

DATA_TYPE

[enumeration]

Default: 0

Define o formato do arquivo de raster saída.

Opções:

  • 0—usar tipo de dados de camada de entrada

  • 1 — Byte

  • 2 — Int16

  • 3 — UInt16

  • 4 — UInt32

  • 5 — Int32

  • 6 — Float32

  • 7 — Float64

  • 8 — CInt16

  • 9 — CInt32

  • 10 — CFloat32

  • 11 — CFloat64

Additional command-line parameters

Opcional

EXTRA

[string]

Default: None

Add extra GDAL command line options

Clipped (extent)

OUTPUT

[raster]

Default: ‘[Save to temporary file]’

Specification of the output raster layer. One of:

  • Save to a Temporary File

  • Save to File…

The file encoding can also be changed here

Saídas

Label

Nome

Type

Descrição

Clipped (extent)

OUTPUT

[raster]

Output raster layer clipped by the given extent

Recortar raster por camada de máscara

Clips qualquer raster com suporte a GDAL por uma camada de máscara de Vetorial.

Este algoritmo é derivado do GDAL grade utilitário <https://www.gdal.org/gdal_grid.html>`_ .

Menu de seleção padrão :`raster–> extração

Parâmetros

Label

Nome

Type

Descrição

Input layer

INPUT

[raster]

The input raster

Mask layer

EXTENT

[vector: polygon]

Vector mask for clipping the raster

Source CRS

SOURCE_CRS

[crs]

Target CRS

TARGET_CRS

[crs]

Assign a specified nodata value to output bands

Opcional

NODATA

[number]

Default: None

Defines a value that should be inserted for the nodata values in the output raster

Create an output alpha band

ALPHA_BAND

[boolean]

Default: False

Cria uma banda alfa para o resultado, resulta. A banda alfa inclui os valores de transparência dos pixels.

Match the extent of the clipped raster to the extent of the mask layer

CROP_TO_CUTLINE

[boolean]

Default: True

Aplica a extensão da camada vetorial à saída raster se checado.

Keep resolution of input raster

KEEP_RESOLUTION

[boolean]

Default: False

The resolution of the output raster will not be changed

Additional creation options

Opcional

OPTIONS

[string]

Default: ‘’

For adding one or more creation options that control the raster to be created (colors, block size, file compression…). For convenience, you can rely on predefined profiles (see GDAL driver options section).

Output data type

DATA_TYPE

[enumeration]

Default: 0

Define o formato do arquivo de raster saída.

Opções:

  • 0 — Use Input Layer Data Type

  • 1 — Byte

  • 2 — Int16

  • 3 — UInt16

  • 4 — UInt32

  • 5 — Int32

  • 6 — Float32

  • 7 — Float64

  • 8 — CInt16

  • 9 — CInt32

  • 10 — CFloat32

  • 11 — CFloat64

Saídas

Label

Nome

Type

Descrição

Clipped (mask)

OUTPUT

[raster]

Output raster layer clipped by the vector layer

contorno

Extrai linhas de contorno de qualquer raster de elevação suportada pelo GDAL.

Este algoritmo é derivado do utilitário de contorno GDAL <https://www.gdal.org/gdal_contour.html>`_ .

Menu de seleção padrão :`raster–> extração

Parâmetros

Label

Nome

Type

Descrição

Input layer

INPUT

[raster]

Input raster

Band number

BAND

[raster band]

Raster band to create the contours from

Interval between contour lines

INTERVAL

[number]

Default: 10.0

Defines the interval between the contour lines in the given units of the elevation raster (minimum value 0)

Attribute name (if not set, no elevation attribute is attached)

Opcional

FIELD_NAME

[string]

Default: ‘ELEV’

Defines the attribute name for the field containing the values of the contour lines.

Produce 3D vector

CREATE_3D

[boolean]

Default: False

Força a produção de vetores 3D em vez de 2D. Inclui elevação em todos os vértice.

Treat all raster values as valid

IGNORE_NODATA

[boolean]

Default: False

Ignora todos os valores de nodata no conjunto de dados.

Input pixel value to treat as “nodata”

Opcional

NODATA

[number]

Default: None

Defines a value that should be inserted for the nodata values in the output raster

Offset from zero relative to which to interpret intervals

Opcional

OFFSET

[number]

Default: 0.0

Additional creation options

Opcional

OPTIONS

[string]

Default: ‘’

For adding one or more creation options that control the raster to be created (colors, block size, file compression…). For convenience, you can rely on predefined profiles (see GDAL driver options section).

Contours

OUTPUT

[vector: line]

Default: ‘[Save to temporary file]’

Specification of the output raster layer. One of:

  • Save to a Temporary File

  • Save to File…

The file encoding can also be changed here.

Saídas

Label

Nome

Type

Descrição

Contours

OUTPUT

[vector: line]

Output vector layer with contour lines