Crate cjseq2 

CityJSONSeq

Create, process, modify, and convert CityJSONSeq files.

Cross-platform Support

This crate supports both native platforms and WebAssembly (WASM):

• Native platforms: Uses reqwest for HTTP requests.
• WASM targets: Uses gloo-net for HTTP requests.

When compiling for WASM, note that some functionality works differently:

• The synchronous fetch_from_url method returns a placeholder in WASM environments.
• Use the fetch_from_url_async method when working with WASM targets.

Example

use cjseq2::{CityJSON, CityJSONFeature, Extension, ExtensionFile};
use std::collections::HashMap;

// To process a CityJSON file:
let json_str = std::fs::read_to_string("path/to/file.json").unwrap();
let city_json = CityJSON::from_str(&json_str).unwrap();

// To fetch extension data (native platforms):
#[cfg(not(target_arch = "wasm32"))]
{
    // Make sure to create a long-lived reference to the extension
    let extensions = &city_json.extensions.unwrap();
    let extension = extensions.get("my_extension").unwrap();
    let extension_file = extension.fetch_extension_file("MyExt".to_string()).unwrap();
}

// To fetch extension data (WASM):
#[cfg(target_arch = "wasm32")]
async {
    if let Some(extensions) = &city_json.extensions {
        if let Some(extension) = extensions.get("my_extension") {
            let extension_file = ExtensionFile::fetch_from_url_async(
                "MyExt".to_string(),
                extension.url.clone(),
                extension.version.clone()
            ).await.unwrap();
        }
    }
}

Re-exports

pub use error::*;

Modules

conv

error

Structs

Address

Appearance

CityJSON

CityJSONFeature

CityObject

Extension

ExtensionFile

Geometry

GeometryTemplates

MaterialObject

MaterialReference

Metadata

PointOfContact

ReferenceSystem

A reference system following the OGC Name Type Specification.

Semantics

SemanticsSurface

TextureObject

TextureReference

Transform

Enums

GeometryType

NestedArray

Our nested structure, generic over T.

SortingStrategy

TextFormat

TextType

WrapMode

Traits

JsonIndex

Validate

Type Aliases

Boundaries

For convenience, define Boundaries as NestedArray<u32> (no null allowed).

GeographicalExtent

MaterialValues

SemanticsValues

For Semantics, define SemanticsValues as NestedArray<Option<u32>> (null allowed).

TextureValues