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/* Copyright 2024 Esri | ||
* | ||
* Licensed under the Apache License Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http:https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
|
||
import IExtent from '@arcgis/core/geometry/Extent'; | ||
import { getMosaicRuleByObjectId } from './getMosaicRuleByObjectId'; | ||
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type ExportImageParams = { | ||
/** | ||
* imagery service URL | ||
*/ | ||
serviceUrl: string; | ||
/** | ||
* Map Extent | ||
*/ | ||
extent: Pick<IExtent, 'xmin' | 'ymin' | 'xmax' | 'ymax'>; | ||
/** | ||
* width of map container | ||
*/ | ||
width: number; | ||
/** | ||
* height of map container | ||
*/ | ||
height: number; | ||
/** | ||
* raster function name that will be used in the rendering rule | ||
*/ | ||
rasterFunctionName: string; | ||
/** | ||
* object Id of the imagery scene | ||
*/ | ||
objectId: number; | ||
abortController: AbortController; | ||
}; | ||
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export const exportImage = async ({ | ||
serviceUrl, | ||
extent, | ||
width, | ||
height, | ||
rasterFunctionName, | ||
objectId, | ||
abortController, | ||
}: ExportImageParams) => { | ||
const { xmin, xmax, ymin, ymax } = extent; | ||
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const params = new URLSearchParams({ | ||
f: 'image', | ||
bbox: `${xmin},${ymin},${xmax},${ymax}`, | ||
bboxSR: '102100', | ||
imageSR: '102100', | ||
format: 'jpgpng', | ||
size: `${width},${height}`, | ||
mosaicRule: JSON.stringify(getMosaicRuleByObjectId(objectId)), | ||
renderingRule: JSON.stringify({ rasterFunction: rasterFunctionName }), | ||
}); | ||
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const requestURL = `${serviceUrl}/exportImage?${params.toString()}`; | ||
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const res = await fetch(requestURL, { signal: abortController.signal }); | ||
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const blob = await res.blob(); | ||
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return blob; | ||
}; |
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/* Copyright 2024 Esri | ||
* | ||
* Licensed under the Apache License Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http:https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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export const getMosaicRuleByObjectId = (objectId: number) => { | ||
return { | ||
ascending: false, | ||
lockRasterIds: [objectId], | ||
mosaicMethod: 'esriMosaicLockRaster', | ||
where: `objectid in (${objectId})`, | ||
}; | ||
}; |