openEO @rasdaman demo

openEO client
JSON-Based Access to rasdaman Datacubes.

The Use Case:

rasdaman implements support for the GeoDataCubes (GDC) API on the server side, including OGC API - Coverages and openEO processes. Internally these API endpoints translate requests to WCPS queries for execution in rasdaman.

The service:

Caveat: The specification still has some known shortcomings, is under discussion, and not yet an adopted standard. Hence,the request syntax shown here may be subject to unannounced changes.

{
	"process_graph": {
		"load1": {
			"process_id": "load_collection",
			"arguments": {
				"id": "ERA5",
				"spatial_extent": null
			}
		},
		"subset1": {
			"process_id": "subset",
			"arguments": {
				"data": {
					"from_node": "load1"
				},
				"subset": [{
					"dimension": "time",
					"lower": "\"2000-01-01T01:00:00Z\""
				}]
			}
		},
		"subset4": {
			"process_id": "subset_band",
			"arguments": {
				"x": {
					"from_node": "subset1"
				},
				"y": "u10"
			}
		},
		"subset5": {
			"process_id": "subset_band",
			"arguments": {
				"x": {
					"from_node": "subset1"
				},
				"y": "v10"
			}
		},
		"power6": {
			"process_id": "power",
			"arguments": {
				"x": {
					"from_node": "subset4"
				},
				"y": 2.0
			}
		},
		"power7": {
			"process_id": "power",
			"arguments": {
				"x": {
					"from_node": "subset5"
				},
				"y": 2.0
			}
		},
		"add8": {
			"process_id": "add",
			"arguments": {
				"x": {
					"from_node": "power6"
				},
				"y": {
					"from_node": "power7"
				}
			}
		},
		"sqrt9": {
			"process_id": "sqrt",
			"arguments": {
				"x": {
					"from_node": "add8"
				}
			}
		},
		"save10": {
			"process_id": "save_result",
			"arguments": {
				"x": {
					"from_node": "sqrt9"
				},
				"format": "PNG",
				"options": "{\\\"colorMap\\\": { \\\"type\\\": \\\"intervals\\\", \\\"colorTable\\\": { \\\"1500\\\": [121, 145, 171, 255], \\\"2500\\\": [125, 255, 209, 255], \\\"3500\\\": [171, 254, 255, 255], \\\"5000\\\": [114, 224, 176, 255], \\\"8000\\\": [116, 224, 87, 255], \\\"9000\\\": [192, 255, 48, 255], \\\"10000\\\": [254, 255, 0, 255], \\\"11000\\\": [255, 255, 135, 255], \\\"12000\\\": [245, 218, 98, 255], \\\"13000\\\": [255, 150, 51, 255], \\\"14000\\\": [255, 102, 102, 255], \\\"15000\\\": [254, 15, 255, 255], \\\"16000\\\": [203, 0, 204, 255] } } }"
			},
			"result": true
		}
	},
	"parameters": []
}

With the Web editor of openEO such a JSON specification can be visualized similar to the one below: