| Name | czml3 JSON |
| Version |
2.2.0
JSON |
| download |
| home_page | None |
| Summary | Python 3 library to write CZML |
| upload_time | 2024-12-19 16:33:28 |
| maintainer | None |
| docs_url | None |
| author | None |
| requires_python | >=3.10 |
| license | MIT |
| keywords |
czml
cesium
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
No coveralls.
|
# czml3
[](https://codecov.io/gh/Stoops-ML/czml3)
From the official [CZML Guide](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/CZML-Guide):
> CZML is a JSON format for describing a time-dynamic graphical scene, primarily for display in a web browser running Cesium. It describes lines, points, billboards, models, and other graphical primitives, and specifies how they change with time.
czml3 aims to make the process of writing CZML files in Python easy by:
- Type checking properties
- Cooercion of data to their required format
- Creating minimal CZML files that only contains fields with information
## Insallation
You can install czml3 using pip:
```
pip install czml3
```
or conda:
```
conda install czml3 --channel conda-forge
```
## Examples
A CZML document is a list of *packets*, which have several properties. Recreating the blue box from Cesium sandcastle's [CZML Box](https://sandcastle.cesium.com/?src=CZML%20Box.html&label=CZML):
```
from czml3 import CZML_VERSION, Document, Packet
from czml3.properties import (
Box,
BoxDimensions,
Color,
Material,
Position,
SolidColorMaterial,
)
from czml3.types import Cartesian3Value
packet_box = Packet(
id="my_id", # fixing id here to ensure test passes
position=Position(cartographicDegrees=[-114.0, 40.0, 300000.0]),
box=Box(
dimensions=BoxDimensions(
cartesian=Cartesian3Value(values=[400000.0, 300000.0, 500000.0])
),
material=Material(
solidColor=SolidColorMaterial(color=Color(rgba=[0, 0, 255, 255]))
),
),
)
doc = Document(
packets=[Packet(id="document", name="box", version=CZML_VERSION), packet_box]
)
print(doc)
```
```
[
{
"id": "document",
"name": "box",
"version": "1.0"
},
{
"id": "my_id",
"position": {
"cartographicDegrees": [
-114.0,
40.0,
300000.0
]
},
"box": {
"dimensions": {
"cartesian": [
400000.0,
300000.0,
500000.0
]
},
"material": {
"solidColor": {
"color": {
"rgba": [
0.0,
0.0,
255.0,
255.0
]
}
}
}
}
}
]
```
czml3 uses [pydantic](https://docs.pydantic.dev/latest/) for all classes. As such czml3 is able to [coerce data to their right type](https://docs.pydantic.dev/latest/why/#json-schema). For example, the following creates a Position property of doubles using a numpy array of interger type:
```
import numpy as np
from czml3.properties import Position
print(Position(cartographicDegrees=np.array([-114, 40, 300000], dtype=int)))
```
```
{
"cartographicDegrees": [
-114.0,
40.0,
300000.0
]
}
```
## Contributing
You want to contribute? Awesome! There are lots of [CZML properties](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/Packet) and validations that we still did not implement, which can be found [here](MissingProperties.md).
All ideas welcome!
Raw data
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"description": "# czml3\n\n\n\n[](https://codecov.io/gh/Stoops-ML/czml3)\n\n\n\n\n\nFrom the official [CZML Guide](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/CZML-Guide):\n> CZML is a JSON format for describing a time-dynamic graphical scene, primarily for display in a web browser running Cesium. It describes lines, points, billboards, models, and other graphical primitives, and specifies how they change with time.\n\nczml3 aims to make the process of writing CZML files in Python easy by:\n- Type checking properties\n- Cooercion of data to their required format\n- Creating minimal CZML files that only contains fields with information\n\n## Insallation\nYou can install czml3 using pip:\n```\npip install czml3\n```\n\nor conda:\n```\nconda install czml3 --channel conda-forge\n```\n\n## Examples\nA CZML document is a list of *packets*, which have several properties. Recreating the blue box from Cesium sandcastle's [CZML Box](https://sandcastle.cesium.com/?src=CZML%20Box.html&label=CZML):\n\n```\nfrom czml3 import CZML_VERSION, Document, Packet\nfrom czml3.properties import (\n Box,\n BoxDimensions,\n Color,\n Material,\n Position,\n SolidColorMaterial,\n)\nfrom czml3.types import Cartesian3Value\npacket_box = Packet(\n id=\"my_id\", # fixing id here to ensure test passes\n position=Position(cartographicDegrees=[-114.0, 40.0, 300000.0]),\n box=Box(\n dimensions=BoxDimensions(\n cartesian=Cartesian3Value(values=[400000.0, 300000.0, 500000.0])\n ),\n material=Material(\n solidColor=SolidColorMaterial(color=Color(rgba=[0, 0, 255, 255]))\n ),\n ),\n)\ndoc = Document(\n packets=[Packet(id=\"document\", name=\"box\", version=CZML_VERSION), packet_box]\n)\nprint(doc)\n```\n```\n[\n {\n \"id\": \"document\",\n \"name\": \"box\",\n \"version\": \"1.0\"\n },\n {\n \"id\": \"my_id\",\n \"position\": {\n \"cartographicDegrees\": [\n -114.0,\n 40.0,\n 300000.0\n ]\n },\n \"box\": {\n \"dimensions\": {\n \"cartesian\": [\n 400000.0,\n 300000.0,\n 500000.0\n ]\n },\n \"material\": {\n \"solidColor\": {\n \"color\": {\n \"rgba\": [\n 0.0,\n 0.0,\n 255.0,\n 255.0\n ]\n }\n }\n }\n }\n }\n]\n```\n\nczml3 uses [pydantic](https://docs.pydantic.dev/latest/) for all classes. As such czml3 is able to [coerce data to their right type](https://docs.pydantic.dev/latest/why/#json-schema). For example, the following creates a Position property of doubles using a numpy array of interger type:\n```\nimport numpy as np\nfrom czml3.properties import Position\nprint(Position(cartographicDegrees=np.array([-114, 40, 300000], dtype=int)))\n```\n```\n{\n \"cartographicDegrees\": [\n -114.0,\n 40.0,\n 300000.0\n ]\n}\n```\n\n## Contributing\nYou want to contribute? Awesome! There are lots of [CZML properties](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/Packet) and validations that we still did not implement, which can be found [here](MissingProperties.md).\n\nAll ideas welcome!\n",
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