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  • Created by Unknown User (roby), last modified on Sep 27, 2013
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Downloading 3-D Expression Grid Data

Download 3-D expression grid data packaged into a compressed archive file (.zip).

Prototype

http://api.brain-map.org/grid_data/download/[SectionDataSet.id]&include=[volumes]

Examples

Download the intensity and density volumes for SectionDataSet 69816930:

http://api.brain-map.org/grid_data/download/69816930?include=intensity,density

Download the energy volume for the Mouse Connectivity Projection experiment 183282970:

http://api.brain-map.org/grid_data/download/183282970

Download the energy volume for the Mouse Brain Atlas' coronal Adora2a experiment.

    First, search for relevant experiments' IDs (SectionDataSets):

http://api.brain-map.org/api/v2/data/query.xml?criteria=
model::SectionDataSet,
rma::criteria,[failed$eq'false'],products[abbreviation$eq'Mouse'],plane_of_section[name$eq'coronal'],genes[acronym$eq'Adora2a']

    Then, download the energy volume for each of the experiments' IDs:

http://api.brain-map.org/grid_data/download/72109410

Parameters

filename

Integer

ID of the desired SectionDataSet.

volumes

Array (optional)

Explicitly list the desired volumes as a comma-separated list. Valid volumes are energy, intensity and density. An additional volume of injection is available for Projection SectionDataSets. 

Response

Zip file (.zip) containing a folder filled with the default files (data_set.xml, energy.mhd, energy.raw) or the requested data volumes.

data_set.xml

XML file with details regarding the specimen and images that is only returned if the volumes parameter is null.

energy.mhd

A simple text header file in MetaImage format describing the volume. This file is returned by default if the volumes parameter is null.

energy.raw

A raw uncompressed float (32-bit) little-endian volume representing average expression energy per voxel. A value of "-1" represents no data. This file is returned by default if the volumes parameter is null.

density.mhd

A simple text header file in MetaImage format describing the volume.

density.raw

A raw uncompressed float (32-bit) little-endian volume representing average expression density per voxel. A value of "-1" represents no data.

intensity.mhd

A simple text header file in MetaImage format describing the volume.

intensity.raw

A raw uncompressed float (32-bit) little-endian volume representing average expression intensity per voxel. A value of "-1" represents no data.

injection.mhd

A simple text header file in MetaImage format describing the volume.

injection.raw

A raw uncompressed float (32-bit) little-endian volume representing the proportion of pixels within each voxel that were within the manually annotated injection site.

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