< draft-ietf-geojson-text-sequence-03.txt   draft-ietf-geojson-text-sequence-04.txt >
GeoJSON S. Gillies GeoJSON S. Gillies
Internet-Draft Mapbox Internet-Draft Mapbox
Intended status: Informational January 7, 2017 Intended status: Standards Track January 25, 2017
Expires: July 11, 2017 Expires: July 29, 2017
GeoJSON Text Sequences GeoJSON Text Sequences
draft-ietf-geojson-text-sequence-03 draft-ietf-geojson-text-sequence-04
Abstract Abstract
A proposed standard for geographic data that can be parsed and This document defines a format for geographic data that can be parsed
produced incrementally. and produced incrementally.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 11, 2017. This Internet-Draft will expire on July 29, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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1. Introduction 1. Introduction
Large or never-ending sequences of values pose a problem for JSON Large or never-ending sequences of values pose a problem for JSON
that is well explained in the motivation for JSON Text Sequences that is well explained in the motivation for JSON Text Sequences
[RFC7464]. GeoJSON [RFC7946] faces the same kind of problem: [RFC7464]. GeoJSON [RFC7946] faces the same kind of problem:
geographic datasets often run to the tens of thousands or millions of geographic datasets often run to the tens of thousands or millions of
features. The problem is often amplified by the presence of large features. The problem is often amplified by the presence of large
arrays of coordinates for each of the features. arrays of coordinates for each of the features.
This document describes a specialization of JSON Text Sequences. A This document describes a specialization of JSON Text Sequences. A
GeoJSON Text Sequence is a document of possibly infinite size GeoJSON Text Sequence is a document of arbitrarily large size
containing one or more GeoJSON objects, e.g., multiple GeoJSON texts containing one or more GeoJSON objects, e.g., multiple GeoJSON texts
that can be parsed and produced incrementally, and not only a single that can be parsed and produced incrementally, and not only a single
GeoJSON FeatureCollection, Feature, or Geometry. GeoJSON FeatureCollection, Feature, or Geometry.
The advantage of using ASCII character RS "0x1e" to denote a text is The advantage of using ASCII character RS "0x1e" to denote a text is
that sequence producers and parsers need not enforce a canonical form that sequence producers and parsers need not enforce a canonical form
of GeoJSON. Any valid GeoJSON, pretty-printed or compact, can be of GeoJSON. Any valid GeoJSON, pretty-printed or compact, can be
used in a GeoJSON text sequence. Additionally, GeoJSON text used in a GeoJSON text sequence. Additionally, GeoJSON text
sequences inherit from the other [RFC7464] rules for consistent sequences inherit from the other [RFC7464] rules for consistent
processing of sequences with potentially corrupted texts. processing of sequences with potentially corrupted texts.
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Subtype name: geo+json-seq Subtype name: geo+json-seq
Required parameters: n/a Required parameters: n/a
Optional parameters: n/a Optional parameters: n/a
Encoding considerations: binary Encoding considerations: binary
Security considerations: See Section 3 above Security considerations: See Section 3 above
Interoperability considerations: See Section 4 abovee Interoperability considerations: See Section 4 above
Published specification: [[This document]] Published specification: [[This document]]
Applications that use this media type: No known applications Applications that use this media type: No known applications
currently use this media type. This media type is intended for currently use this media type. This media type is intended for
GeoJSON applications currently using colloquial line-delimited GeoJSON applications currently using colloquial line-delimited
variants of GeoJSON. variants of GeoJSON.
Additional information: Additional information:
Magic number(s): n/a Magic number(s): n/a
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