Hello,

I am working on an 1850 pixel map. But the API request for all of those is too big and the aviationweather.gov server returns an error. 

So I modified the code so it will only send a certain amount (300 at the time). It looks like it works but some airports are shown as Undefinded.

Maybe someone can help with this?

Here is the code I changed in the webapp.py 

I added this lib at #60

from itertools import islice

This var at #139

max_api_airports = 300          # The max amount of airports from api with one request

I also changed this value LED_COUNT = 2000 

And these are my edits from #1533 to #1702

# routine to capture airport information and pass along to web pages.
def get_led_map_info():
    logger.debug('In get_led_map_info Routine')

    global led_map_url
    global led_map_dict
    global lat_list
    global lon_list
    global max_lat
    global min_lat
    global max_lon
    global min_lon

    airports_count = len(airports)
    lmu_tmp = led_map_url
    
    print ("Number of airports in the list: ", airports_count)
    
    tmp_ap = airports_count
    tmp_start = 0
    tmp_end = max_api_airports

    while (tmp_ap >= 0):
    
        print ("tmp_start: ", tmp_start)
        print ("tmp_ap: ", tmp_ap)
        print ("tmp_end: ", tmp_end)
        
        for airportcode in islice(airports, tmp_start, tmp_end):
            lmu_tmp = lmu_tmp + airportcode + ","
        #led_map_url = led_map_url[:-1]
        logger.debug(lmu_tmp) # debug url if neccessary

        while True:  # check internet availability and retry if necessary. If house power outage, map may boot quicker than router.
            try:
                content = urllib.request.urlopen(lmu_tmp).read()
                logger.info('Internet Available')
                logger.info(lmu_tmp)
                break
            except:
                logger.warning('FAA Data Not Available')
                logger.warning(lmu_tmp)
                time.sleep(delay_time)
                content = ''
                pass

        if content  == '':  # if FAA data not available bypass getting apinfo
            return

        root = ET.fromstring(content)  # Process XML data returned from FAA

        for led_map_info in root.iter('METAR'):
            stationId = led_map_info.find('station_id').text

            try:
                lat = led_map_info.find('latitude').text
                lon = led_map_info.find('longitude').text
            except:
                lat = '0'
                lon = '0'

            lat_list.append(lat)
            lon_list.append(lon)

            if led_map_info.find('flight_category') is None:
                fl_cat = 'Not Reported'
            else:
                fl_cat = led_map_info.find('flight_category').text
            led_map_dict[stationId] = [lat,lon,fl_cat]
        
        tmp_ap = tmp_ap - max_api_airports
        tmp_start = tmp_start + max_api_airports
        tmp_end = tmp_end + max_api_airports
        lmu_tmp = led_map_url

    max_lat = max(lat_list)
    min_lat = min(lat_list)
    max_lon = max(lon_list)
    min_lon = min(lon_list)


# routine to capture airport information and pass along to web pages.
def get_apinfo():
    logger.debug('In Get_Apinfo Routine')

    global orig_apurl
    global apinfo_dict
    
    #print (max_api_airports)
    airports_count = len(airports)
    
    print ("Number of airports in the list: ", airports_count)
    apurl = orig_apurl  # Assign base FAA url to temp variable
    tmp_ap = airports_count
    tmp_start = 0
    tmp_end = max_api_airports
    
    while (tmp_ap >= 0):
        print ("tmp_start: ", tmp_start)
        print ("tmp_ap: ", tmp_ap)
        print ("tmp_end: ", tmp_end)
        
        for airportcode in islice(airports, tmp_start, tmp_end):
            apurl = apurl + airportcode + ","
    
        #apurl = apurl[:-1]
        print ("URL string: ", apurl)
        while True:  # check internet availability and retry if necessary. If house power outage, map may boot quicker than router.
            try:
#                s.connect(("8.8.8.8", 80))
                content = urllib.request.urlopen(apurl).read()
                logger.info('Internet Available')
                logger.info(apurl)
                break
            except:
                logger.warning('FAA Data Not Available')
                logger.warning(apurl)
                time.sleep(delay_time)
                content = ''
                pass

        if content == '':  # if FAA data not available bypass getting apinfo
            return
            
        root = ET.fromstring(content)  # Process XML data returned from FAA

        for apinfo in root.iter('Station'):
            stationId = apinfo.find('station_id').text

            if stationId[0] != 'K':
                site = apinfo.find('site').text
                country = apinfo.find('country').text
                apinfo_dict[stationId] = [site,country]

            else:
                site = apinfo.find('site').text
                state = apinfo.find('state').text
                apinfo_dict[stationId] = [site,state]
    
        
                        
        tmp_ap = tmp_ap - max_api_airports
        tmp_start = tmp_start + max_api_airports
        tmp_end = tmp_end + max_api_airports
        apurl = orig_apurl
        
        
    #print (content)
    #content2 = content.decode()
    #file = open("temp123.xml", "w")
    #file.write(content2)
    #file.close()
    
    """
    root = ET.fromstring(content)  # Process XML data returned from FAA

    for apinfo in root.iter('Station'):
        stationId = apinfo.find('station_id').text

        if stationId[0] != 'K':
            site = apinfo.find('site').text
            country = apinfo.find('country').text
            apinfo_dict[stationId] = [site,country]

        else:
            site = apinfo.find('site').text
            state = apinfo.find('state').text
            apinfo_dict[stationId] = [site,state]
    """