Latest Contributions by JoeBriggs1

Is there a way to lookup or detect if the ESRI Imagery Basemap service is down?  We have an automated system that exports an mxd to pdf.  If the Imagery service is down, the 'export to pdf' step simply stalls out.  I need a way to programmatically detect the health of the imagery service prior to the export step.  That way, I can switch the mxd to use a different basemap on-the-fly, thereby keeping our automated system from stalling out. Any help appreciated. ... View more

I am using python and clipping a tif with the clip tool. However, the output (clipped) raster is altered. The raster properties appear identical, both 16bit signed. Cell sizes are the same etc. Here is the relevant code including environment parameters: arcpy . env . compression = "NONE" arcpy . env . pyramid = "NONE" arcpy . Clip_management ( pl_rasters [ 0 ], buffExtentStrip , pluvial_final + ".tif" , nodata_value =- 9999 , maintain_clipping_extent = "NO_MAINTAIN_EXTENT" ) The following images show the original and clipped. Original: Clipped: Any help is greatly appreciated. ... View more

I'm using python and trying to download and create a layer using the exportImage functionality here:3DEPElevation (ImageServer) .  I find that I'm able to download a clipped raster from exportImage much faster than using MakeImageServerLayer_management. ExportImage takes less than 15 seconds, where MakeImageServerLayer takes 45+ seconds.  So long story short I'd like to use exportImage if possible.  However, sometimes it works great, but sometimes intermittently, I'm receiving a 400 status code when I try to download the image using exportImage.  The request to exportImage returns an href link in the json response, but when I try to download and write it to file, the request fails with a 400. When I use retries, the file will sometimes download on subsequent attempts, but sometimes it will never download.  Even when I copy the link into a browser.  Can anyone offer an explanation, insight, and/or solution? My requests config is something like this: import requests, arcpy, datetime from requests.adapters import HTTPAdapter from requests.packages.urllib3.util.retry import Retry retry_strategy = Retry(     total=4,     status_forcelist=[400, 429, 500, 502, 503, 504],     method_whitelist=["HEAD", "GET", "OPTIONS"],     backoff_factor=1 ) adapter = HTTPAdapter(max_retries=retry_strategy) http = requests.Session() http.mount("https://", adapter) http.mount("http://", adapter) And my imageServer code is something like this: exportURL = r"https://elevation.nationalmap.gov/arcgis/rest/services/3DEPElevation/ImageServer/exportImage?" clipPoly=r'C:\test.gdb\test_poly' tempDir=r'C:\temp' featExtentJSON=arcpy.Describe(clipPoly).extent.JSON exportParams = {'bbox':featExtentJSON,                 'bboxSR':'',                 'size':'',                 'imageSR':'',                 'time':'',                 'format':'tiff',                 'pixelType':'F32',                 'noData':'',                 'noDataInterpretation':'esriNoDataMatchAny',                 'interpolation':'RSP_BilinearInterpolation',                 'compression':'',                 'compressionQuality':'',                 'bandIds':'',                 'mosaicRule':{"mosaicMethod" : "esriMosaicLockRaster","lockRasterIds" : 4968},                 'renderingRule':'',                 'f':'pjson'                 } def createExport(url, exParams):     exportResponse = http.get(url, params=exParams)     if exportResponse.status_code==200:         fileURL=exportResponse.json()["href"]     return fileURL def downloadImage():     fileURL = createExport(exportURL, exportParams)     if fileURL.find('/'):         fileName=fileURL.rsplit('/', 1)[1]                r = http.get(fileURL, allow_redirects=False)         if r.status_code==200:             with open(tempDir+'\\'+fileName,'wb') as f:                 f.write(r.content)     return fileName downloadImage() ... View more