Digital Elevation Model Service
DEM Service GET Request - Download TIFF
The Ag-Analytics® DEM Service API allows for clipping boundaries to the 10 meter USGS DEM map of the United States. The service consists of a GET request where the user can pass the filename from POST request. The result of the GET request is the GeoTIFF file of the DEM clip to the specified local path.
Sample DEM raster output.
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GET Request
Parameter | Description | Example | Request |
---|---|---|---|
FileName | File name to download. From POST request. Only request a single file at a time. |
result_raster_dem_ 2020022713.tif |
https://ag-analytics.azure-api.net/dem-service? FileName= result_raster_dem_2020022713.tif |
Call API
Request
Request URL
Request parameters
-
(optional)
Request body
Responses
200 OK
null
Code samples
@ECHO OFF
curl -v -X GET "https://ag-analytics.azure-api.net/dem-service/?FileName={}"
--data-ascii "{body}"
using System;
using System.Net.Http.Headers;
using System.Text;
using System.Net.Http;
using System.Web;
namespace CSHttpClientSample
{
static class Program
{
static void Main()
{
MakeRequest();
Console.WriteLine("Hit ENTER to exit...");
Console.ReadLine();
}
static async void MakeRequest()
{
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request parameters
queryString["FileName"] = "{}";
var uri = "https://ag-analytics.azure-api.net/dem-service/?" + queryString;
var response = await client.GetAsync(uri);
}
}
}
// // This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
public class JavaSample
{
public static void main(String[] args)
{
HttpClient httpclient = HttpClients.createDefault();
try
{
URIBuilder builder = new URIBuilder("https://ag-analytics.azure-api.net/dem-service/");
builder.setParameter("FileName", "{}");
URI uri = builder.build();
HttpGet request = new HttpGet(uri);
// Request body
StringEntity reqEntity = new StringEntity("{body}");
request.setEntity(reqEntity);
HttpResponse response = httpclient.execute(request);
HttpEntity entity = response.getEntity();
if (entity != null)
{
System.out.println(EntityUtils.toString(entity));
}
}
catch (Exception e)
{
System.out.println(e.getMessage());
}
}
}
<!DOCTYPE html>
<html>
<head>
<title>JSSample</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
</head>
<body>
<script type="text/javascript">
$(function() {
var params = {
// Request parameters
"FileName": "{}",
};
$.ajax({
url: "https://ag-analytics.azure-api.net/dem-service/?" + $.param(params),
beforeSend: function(xhrObj){
// Request headers
},
type: "GET",
// Request body
data: "{body}",
})
.done(function(data) {
alert("success");
})
.fail(function() {
alert("error");
});
});
</script>
</body>
</html>
#import <Foundation/Foundation.h>
int main(int argc, const char * argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString* path = @"https://ag-analytics.azure-api.net/dem-service/";
NSArray* array = @[
// Request parameters
@"entities=true",
@"FileName={}",
];
NSString* string = [array componentsJoinedByString:@"&"];
path = [path stringByAppendingFormat:@"?%@", string];
NSLog(@"%@", path);
NSMutableURLRequest* _request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
[_request setHTTPMethod:@"GET"];
// Request headers
// Request body
[_request setHTTPBody:[@"{body}" dataUsingEncoding:NSUTF8StringEncoding]];
NSURLResponse *response = nil;
NSError *error = nil;
NSData* _connectionData = [NSURLConnection sendSynchronousRequest:_request returningResponse:&response error:&error];
if (nil != error)
{
NSLog(@"Error: %@", error);
}
else
{
NSError* error = nil;
NSMutableDictionary* json = nil;
NSString* dataString = [[NSString alloc] initWithData:_connectionData encoding:NSUTF8StringEncoding];
NSLog(@"%@", dataString);
if (nil != _connectionData)
{
json = [NSJSONSerialization JSONObjectWithData:_connectionData options:NSJSONReadingMutableContainers error:&error];
}
if (error || !json)
{
NSLog(@"Could not parse loaded json with error:%@", error);
}
NSLog(@"%@", json);
_connectionData = nil;
}
[pool drain];
return 0;
}
<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';
$request = new Http_Request2('https://ag-analytics.azure-api.net/dem-service/');
$url = $request->getUrl();
$headers = array(
// Request headers
);
$request->setHeader($headers);
$parameters = array(
// Request parameters
'FileName' => '{}',
);
$url->setQueryVariables($parameters);
$request->setMethod(HTTP_Request2::METHOD_GET);
// Request body
$request->setBody("{body}");
try
{
$response = $request->send();
echo $response->getBody();
}
catch (HttpException $ex)
{
echo $ex;
}
?>
########### Python 2.7 #############
import httplib, urllib, base64
headers = {
}
params = urllib.urlencode({
# Request parameters
'FileName': '{}',
})
try:
conn = httplib.HTTPSConnection('ag-analytics.azure-api.net')
conn.request("GET", "/dem-service/?%s" % params, "{body}", headers)
response = conn.getresponse()
data = response.read()
print(data)
conn.close()
except Exception as e:
print("[Errno {0}] {1}".format(e.errno, e.strerror))
####################################
########### Python 3.2 #############
import http.client, urllib.request, urllib.parse, urllib.error, base64
headers = {
}
params = urllib.parse.urlencode({
# Request parameters
'FileName': '{}',
})
try:
conn = http.client.HTTPSConnection('ag-analytics.azure-api.net')
conn.request("GET", "/dem-service/?%s" % params, "{body}", headers)
response = conn.getresponse()
data = response.read()
print(data)
conn.close()
except Exception as e:
print("[Errno {0}] {1}".format(e.errno, e.strerror))
####################################
require 'net/http'
uri = URI('https://ag-analytics.azure-api.net/dem-service/')
query = URI.encode_www_form({
# Request parameters
'FileName' => '{}'
})
if query.length > 0
if uri.query && uri.query.length > 0
uri.query += '&' + query
else
uri.query = query
end
end
request = Net::HTTP::Get.new(uri.request_uri)
# Request body
request.body = "{body}"
response = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
http.request(request)
end
puts response.body