Types¶
A base class for all representations of objects in the Descartes Labs catalog. |
|
The state of the catalog object. |
|
The state of a task. |
|
Valid data types for bands. |
|
Types of bands with different data interpretation. |
|
Predefined colormaps available to assign to bands. |
|
Processing Levels Step. |
|
An attribute that contains properties (key/value pairs). |
|
Derived Band Parameters Attribute. |
|
A spatial pixel resolution with a unit. |
|
Valid units of measure for Resolution. |
|
File definition for an Image. |
|
The storage state for an image. |
|
A date field to use for aggragation for the |
|
An interval for the |
|
Control of the upload process. |
|
The type of upload data. |
|
Allowed overview resampler algorithms. |
|
The status of the image upload operation. |
|
Image upload event data. |
-
class
CatalogObject
(**kwargs)[source]¶ A base class for all representations of objects in the Descartes Labs catalog.
-
delete
()¶ Delete this catalog object from the Descartes Labs catalog.
Once deleted, you cannot use the catalog object and should release any references.
- Raises
DeletedObjectError – If this catalog object was already deleted.
UnsavedObjectError – If this catalog object is being deleted without having been saved.
ClientError or ServerError – Spurious exception that can occur during a network request.
-
-
class
DocumentState
[source]¶ The state of the catalog object.
-
UNSAVED
¶ The catalog object was never synchronized with the Descartes Labs catalog. All values are considered modified and saving the catalog object will create the corresponding object in the Descartes Labs catalog.
- Type
enum
-
MODIFIED
¶ The catalog object was synchronized with the Descartes Labs catalog (using
get()
orsave()
), but at least one attribute value has since been changed. You cansave()
a modified catalog object to update the object in the Descartes Labs catalog.Note that assigning an identical value does not change the state.
- Type
enum
-
SAVED
¶ The catalog object has been fully synchronized with the Descartes Labs catalog (using
get()
orsave()
).- Type
enum
-
DELETED
¶ The catalog object has been deleted from the Descartes Labs catalog. Many operations cannot be performed on
DELETED
objects.- Type
enum
Note
A
SAVED
catalog object can still be out-of-date with respect to the Descartes Labs catalog if there was an update from another client since the last sycnronization. To re-synchronize aSAVED
catalog object you can usereload()
.-
-
class
TaskState
[source]¶ The state of a task.
-
NEVERRAN
¶ The operation was never invoked.
- Type
enum
-
RUNNING
¶ The operation is in progress.
- Type
enum
-
SUCCEEDED
¶ The operation was successfully completed.
- Type
enum
-
FAILED
¶ The operation resulted in a failure and may not have been completed.
- Type
enum
-
-
class
DataType
[source]¶ Valid data types for bands.
-
BYTE
¶ An 8 bit unsigned integer value.
- Type
enum
-
UINT16
¶ A 16 bit unsigned integer value.
- Type
enum
-
INT16
¶ A 16 bit signed integer value.
- Type
enum
-
UINT32
¶ A 32 bit unsigned integer value.
- Type
enum
-
INT32
¶ A 32 bit signed integer value.
- Type
enum
-
FLOAT32
¶ A 32 bit single-precision floating-point format value.
- Type
enum
-
FLOAT64
¶ A 64 bit double-precision floating-point format value.
- Type
enum
-
-
class
BandType
[source]¶ Types of bands with different data interpretation.
The type of band is represented in the specific Band class being used and is only for informative purposes.
-
CLASS
¶ A band that maps a finite set of values that may not be continuous.
- Type
enum
-
SPECTRAL
¶ A band that lies somewhere on the visible/NIR/SWIR electro-optical wavelength spectrum.
- Type
enum
-
MASK
¶ A binary band where by convention a 0 means masked and 1 means non-masked.
- Type
enum
-
MICROWAVE
¶ A band that lies in the microwave spectrum, often from SAR or passive radar sensors.
- Type
enum
-
GENERIC
¶ An unspecified kind of band not fitting any other type.
- Type
enum
-
-
class
Colormap
[source]¶ Predefined colormaps available to assign to bands.
Most of these colormaps correspond directly to the built-in colormaps of the same name in matplotlib. See https://matplotlib.org/3.1.0/tutorials/colors/colormaps.html for an overview and visual examples.
-
MAGMA
¶ A perceptually uniform sequential colormap, equivalent to matplotlib’s built-in “magma”
- Type
enum
-
INFERNO
¶ A perceptually uniform sequential colormap, equivalent to matplotlib’s built-in “inferno”
- Type
enum
-
PLASMA
¶ A perceptually uniform sequential colormap, equivalent to matplotlib’s built-in “plasma”
- Type
enum
-
VIRIDIS
¶ A perceptually uniform sequential colormap, equivalent to matplotlib’s built-in “viridis”
- Type
enum
-
COOL
¶ A sequential colormap, equivalent to matplotlib’s built-in “cool”
- Type
enum
-
HOT
¶ A sequential colormap, equivalent to matplotlib’s built-in “hot”
- Type
enum
-
COOLWARM
¶ A diverging colormap, equivalent to matplotlib’s built-in “coolwarm”
- Type
enum
-
BWR
¶ A diverging colormap (blue-white-red), equivalent to matplotlib’s built-in “bwr”
- Type
enum
-
GIST_EARTH
¶ A colormap designed to represent topography and water depths together, equivalent to matplotlib’s built-in “gist_earth”
- Type
enum
-
TERRAIN
¶ A colormap designed to represent topography and water depths together, equivalent to matplotlib’s built-in “terrain”
- Type
enum
-
CDL
¶ A standard colormap used in Cropland Data Layer (CDL) products, with a distinct color for each class in such products
- Type
enum
-
-
class
ProcessingStepAttribute
(**kwargs)[source]¶ Processing Levels Step.
-
function
¶ Name of the processing function to apply. Required.
- Type
str
-
parameter
¶ Name of the parameter in the image metadata containing the coefficients for the processing function. Required.
- Type
str
-
index
¶ Optional index into the named parameter (an array) for the band.
- Type
int
-
-
class
ProcessingLevelsAttribute
(value=None, validate=True, **kwargs)[source]¶ An attribute that contains properties (key/value pairs).
Can be set using a dictionary of items or any
Mapping
, or an instance of this attribute. All keys must be string and values can be string or an iterable ofProcessingStepAttribute
items (or compatible mapping).ProcessingLevelsAttribute
behaves similar to dictionaries.
-
class
DerivedParamsAttribute
(**kwargs)[source]¶ Derived Band Parameters Attribute.
-
function
¶ Name of the function to apply. Required.
- Type
str
-
bands
¶ Names of the bands used as input to the function. Required.
- Type
list(str)
-
source_type
¶ Optional index into the named parameter (an array) for the band.
- Type
int
-
-
class
Resolution
(values=None, **kwargs)[source]¶ A spatial pixel resolution with a unit.
For example,
Resolution(value=60, unit=ResolutionUnit.METERS)
represents a resolution of 60 meters per pixel. You can also use a string with a value and unit, for example60m
or1.2 deg.
. The available unit designations are:m, meter, meters, metre, metres
°, deg, degree, degrees
Spaces between the value and unit are optional, as is a trailing period.
Objects with resolution values can be filtered by a unitless number in which case the value is always in meters. For example, retrieving all bands with a resolution of 60 meters per pixel:
>>> Band.search().filter(p.resolution == 60)
- Parameters
-
value
¶ The value of the resolution.
- Type
float
-
unit
¶ The unit the resolution is measured in.
- Type
str or ResolutionUnit
-
class
ResolutionUnit
[source]¶ Valid units of measure for Resolution.
-
METERS
¶ The resolution in meters.
- Type
enum
-
DEGREES
¶ The resolution in degrees.
- Type
enum
-
-
class
File
(**kwargs)[source]¶ File definition for an Image.
-
href
¶ If the
StorageState
isAVAILABLE
, this field is required and it must be a valid reference to either a JP2 or a GeoTiff file using thegs
scheme. If theStorageState
isREMOTE
, this field is optional and you can use one of the schemesgs
,http
,https
,ftp
, orftps
; if the scheme isgs
, it must be a valid reference but can be any format.- Type
str
-
size_bytes
¶ Size of the file in bytes. Required when the
StorageState
isAVAILABLE
.- Type
int
-
hash
¶ The md5 hash for the given file. Required when the
StorageState
isAVAILABLE
.- Type
str
-
provider_id
¶ Optional ID for the external provider when the
StorageState
isREMOTE
.- Type
str
-
provider_href
¶ A URI to describe the remote image in more detail. Either the
provider_href
or thehref
must be specified when theStorageState
isREMOTE
.- Type
str
-
-
class
StorageState
[source]¶ The storage state for an image.
-
AVAILABLE
¶ The image data has been uploaded and can be rastered.
- Type
enum
-
REMOTE
¶ The image data is has not been uploaded, but its location is known.
- Type
enum
-
-
class
AggregateDateField
[source]¶ A date field to use for aggragation for the
ImageSearch.summary_interval()
method.-
ACQUIRED
¶ Aggregate on the
Image.acquired
field.- Type
enum
-
CREATED
¶ Aggregate on the
Image.created
field.- Type
enum
-
MODIFIED
¶ Aggregate on the
Image.modified
field.- Type
enum
-
PUBLISHED
¶ Aggregate on the
Image.published
field.- Type
enum
-
-
class
Interval
[source]¶ An interval for the
ImageSearch.summary_interval()
method.-
YEAR
¶ Aggregate on a yearly basis
- Type
enum
-
QUARTER
¶ Aggregate on a quarterly basis
- Type
enum
-
MONTH
¶ Aggregate on a monthly basis
- Type
enum
-
WEEK
¶ Aggregate on a weekly basis
- Type
enum
-
DAY
¶ Aggregate on a daily basis
- Type
enum
-
HOUR
¶ Aggregate on a hourly basis
- Type
enum
-
MINUTE
¶ Aggregate per minute
- Type
enum
-
-
class
ImageUploadOptions
(**kwargs)[source]¶ Control of the upload process.
-
upload_type
¶ Type of upload job, see
ImageUploadType
.- Type
str or ImageUploadType
-
image_files
¶ File basenames of the uploaded files.
- Type
list(str)
-
overviews
¶ Overview generation control, only used when
upload_type
isImageUploadType.NDARRAY
.- Type
list(int)
-
overview_resampler
¶ Overview resampler method, only used when
upload_type
isImageUploadType.NDARRAY
.- Type
str or OverviewResampler
-
upload_size
¶ When
upload_type
isImageUploadType.NDARRAY
, the total size of the array in bytes.- Type
int
-
-
class
ImageUploadType
[source]¶ The type of upload data.
-
NDARRAY
¶ An multidimensional, homogeneous array of fixed-size items representing one or more images.
- Type
enum
-
FILE
¶ A file on disk containing one or more images.
- Type
enum
-
-
class
OverviewResampler
[source]¶ Allowed overview resampler algorithms.
-
NEAREST
¶ Applies a nearest neighbour (simple sampling) resampler
- Type
enum
-
AVERAGE
¶ Computes the average of all non-NODATA contributing pixels.
- Type
enum
-
GAUSS
¶ Applies a Gaussian kernel before computing the overview, which can lead to better results than simple averaging in e.g case of sharp edges with high contrast or noisy patterns.
- Type
enum
-
CUBIC
¶ Applies a cubic convolution kernel.
- Type
enum
-
CUBICSPLINE
¶ Applies a B-Spline convolution kernel.
- Type
enum
-
LANCZOS
¶ Applies a Lanczos windowed sinc convolution kernel.
- Type
enum
-
AVERAGE_MP
¶ Averages complex data in mag/phase space.
- Type
enum
-
AVERAGE_MAGPHASE
¶ average_magphase
- Type
enum
-
MODE
¶ Selects the value which appears most often of all the sampled points.
- Type
enum
-
-
class
ImageUploadStatus
[source]¶ The status of the image upload operation.
-
TRANSFERRING
¶ Upload has been initiated and file(s) are being transfered from the client to the platform.
- Type
enum
-
PENDING
¶ The files were transfered to the platform, and are waiting for processing to begin.
- Type
enum
-
RUNNING
¶ The processing step is currently running.
- Type
enum
-
SUCCESS
¶ The upload processing completed successfully and the new image is available.
- Type
enum
-
FAILURE
¶ The upload failed; error information is available.
- Type
enum
-
CANCELED
¶ The upload was canceled by the user prior to completion.
- Type
enum
-
-
class
ImageUploadEvent
(**kwargs)[source]¶ Image upload event data.
During the sequence of steps in the life-cycle of an upload, events are recorded at each change in upload status and as responsibility for the upload passes between different subsystems (referred to here as “components”). While the
ImageUpload
object provides the current status of the upload and the time at which that status was reached, the events associated with an upload record the circumstances for each of the changes in the upload status as they occurred.A typical upload, once complete, will have four events with the following
event_type
:-
component
¶ The component which generated the event.
The value of this field depends on the internal details of how images are uploaded, but is useful to support personnel for understanding where a failure may have occurred.
- Type
str
-
component_id
¶ The unique identifier for the component instance which generated the event.
This identifier is useful to support personnel for tracking down any errors which may have occurred.
- Type
str
-
event_datetime
¶ The time at which the event occurred.
- Type
datetime
-
event_type
¶ The type of the event.
- Type
-
id
¶ Unique id for the event.
- Type
str
-
message
¶ Any message associated with the event.
- Type
str
-
severity
¶ The severity of the event.
-
class
ImageUploadEventType
[source]¶ The type of the image upload event.
-
QUEUE
¶ The transfer of the file(s) was completed, and the upload processing request has been issued.
- Type
enum
-
CANCEL
¶ The user has requested that the upload be canceled. If processing is already underway, it will continue.
- Type
enum
-
RUN
¶ The processing step is starting.
- Type
enum
-
COMPLETE
¶ All processing has completed. The upload status will reflect success, failure, or cancellation.
- Type
enum
-
ERROR
¶ An error has been detected, but the operation may continue or be retried.
- Type
enum
-
TIMEOUT
¶ The upload operation has timed out, and will be retried.
- Type
enum
-
LOG
¶ The event contains logging output.
- Type
enum
-
USAGE
¶ The event contains process resource usage information.
- Type
enum
-
-
class
ImageUploadEventSeverity
[source]¶ The severity of an image upload event.
The severity values duplicate the standard python logging package level names and have the same meaning.
-
CRITICAL
¶ Critical (error) event.
- Type
enum
-
ERROR
¶ Error event.
- Type
enum
-
WARNING
¶ Warning event.
- Type
enum
-
INFO
¶ Informational event.
- Type
enum
-
DEBUG
¶ Debug event.
- Type
enum
-