Need Free Satellite Photos of New York City

I found Google Earth displays perfectly the images I need to use. But if I used that image in a presentation, I could be sued by Google.

So, I would never do that, clearly.

Are there other ways to get Satellite Photos of New York City which are public domain? Or that have some easy to accept license such as putting a copyright notice at the bottom?

I heard some French company had some which were free?

Can you please give me any Satellite Photos websites I can check their terms??

Thanks.

Employee Tracking - GPS - I want app to web solution for tracking my sales employee and location with form to be filed when they reach that location.

Hi,


I need to calculate the Grid value based on lon/lat value of particular point  on map. The attached file display the "test_incident" point , need to calculate that point grid value.


Is there any formulas /algorithms  or any API to calculate the grid value.




Thanks,
Venkat.

I have to process a list of latitude and longitude co-ordinates to see if a device has moved in/out of a geo zone

Previously, the app was single threaded, and we delayed processing this information for a few minutes, then we ordered the list by the dateTime and then checked each item in date order to see if it entered / exited a zone

i.e.

12:00:01 - not in zone
12:00:02 - not in zone
12:00:03 -  in zone
12:00:04 -  in zone
12:00:05 -  in zone
12:00:06 -  in zone
12:00:07 -  in zone
12:00:08 - not in zone
12:00:09 - not in zone

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this then saves date to db like

12:00:03 - entered the zone
12:00:08 - exited the zone

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We have since made the console app multithreaded and we are now seeing race conditions where the data is processed in the wrong order, and its causing data integrity issues where sometimes exits the zone too early, and then the next record see's its inside the zone, therefore its creating data like this

12:00:06 - entered the zone
12:00:08 - exited the zone

12:00:04 - entered the zone
12:00:09 - exited the zone

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the user then thinks the device entered the zone twice, when it was infact just once


Due to the high volume of data we process we need to stick with multithreaded solution
We currently check the next item in the list against the in memory "lastPosition" object

I'm now thinking we need to change the approach where we check 1 record against another, and batch the records to speed up performance …

If I do geolocation on the IP of a Squarespace site I get the location of the Squarespace server, which doesn't tell me anything about where the business is located.  So how can I find all the Squarespace websites  for businesses located in a certain area, maybe a zipcode or a county?

Thanks for any ideas.

The  following  code  is  for  gps  gsm  module.The  compiled  hex  code  is  pushed  to  microprocessor.
While  compiling the  below code  we  get  unknown  variable  error  for  following  variables UCZS0, UCZS1
Please  guide  us  for  same.

//GPS and GSM Based Vehicle tracking system
#define F_CPU 12000000			//12Mhz
#include <avr/io.h>			//Header file for AVR device specific I/O Definitions.
#include <avr/pgmspace.h>		//Header file for incorporating program space string utilities.
#include <util/delay.h>			//Header file for incorporating delay routines.
#include<inttypes.h>


#define USART_BAUDRATE 9600
#define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16UL))) - 1)

void WaitMs(unsigned int ms);		

void usart_init();
unsigned int usart_getch();
void usart_writech(unsigned char data);
void usart_message(unsigned char *var);

unsigned char value,i,lati_value[9],lati_dir, longi_value[10], longi_dir, final_message[30];
unsigned char deg = 0xB0;

int main()
{

DDRC=0x00;
PORTC=0xff;

    usart_init();

    while(1)
	{
	 a:
	 value=usart_getch();
	 if(value=='$')
	 {
		
	value=usart_getch();
		if(value=='G')
	{
	value=usart_getch();
	if(value=='P')
	{
	value=usart_getch();
	if(value=='G')
	{
				
	value=usart_getch();
	if(value=='A')
	{
	value=usart_getch();
	if(value==',')
	{
	value=usart_getch();
	while(value!=',')
	{
	value=usart_getch();
	}
	
	for(i=0; i<9; i++)
	{

	lati_value[i] = usart_getch();

	}
	value = usart_getch();
	
	lati_dir=usart_getch();
	

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…

I have a google visitor map that uses Geo location that has stopped working on the live site but still works @ locallhost

I'm thinking it could be because I don't have  SSL certificate!

Looking at the webhosting website they charge from £25.99 per year which seems a bit steep considering I only want it so the google works

My question is do I need a  SSL certificate?
If so do I have to go through the hosting company or can I register for free?

Hi I'm adding points to an Openlayers 2 map by clicking the map and sending the co-ords to a PostGIS database and building html from the response this has additional links ect.

I'm also adding markers to the map from database return (I know it's doesn't work here)



In this recreation how do bind the new data
(The real data is on a closed system without internet access )

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
        <meta name="apple-mobile-web-app-capable" content="yes">
        <title>OpenLayers Click Event Example</title>
        
        <script src="https://openlayers.org/api/OpenLayers.js"></script>
          <script src="/jquery-ui-1.9.2.custom/js/jquery-1.8.3.js"></script>
        <style type="text/css">
          html, body, #mapdiv {
              width:100%; height:100%; margin:0;
          }
          
          .olImageLoadError { display: none; } /* no pink tiles */ 
        </style>
  
        <script type="text/javascript">
        
            //Set up a click handler
            OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {                
                defaultHandlerOptions: {
                    'single': true,
                    'double': false,
                    'pixelTolerance': 0,
                    'stopSingle': false,
  

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…

Are there any WIndows 10 tablets or laptop with build in GPS receiver ?

With AS3 I combined geolocation and accelerometer to direct the iphone, with its back towards a star at the sky. Accelerometer works fine for tilt 0-90 degrees ( directed towards horizon, phone vertical - towards zenith, phone horizontal with screen downwards) but geolocation heading of course flips around 45 degrees tilt and begins to show star direction + 180 degrees. Around 45 degrees tilt geolocation heading becomes very random and I would be very grateful for a suggested algorithm to eliminate the randomness of this phase shift.
_____________
Specifically my problem is:

Geolocation:
head = event.heading;
head2 = event.heading -180;
 if(head2<0){head2 +=360;}

then
 if(angleSky>45) {head3 = head2;} else {head3 = head} // angle obtained by accelerometer

Ideally above angleSky 45 the code should choose head3=head2 and that should then be a continuation of the heading below 45. But this is not the case. Sometimes the geolocation heading switches at 43 or 44. Thus what I have tried but not succeeded is to store head  at 42 or 43 and then compare head3 with that. If head3 then is more than 100 degrees difference I tried to use the heading at 42-43. But I have not succeeded. Can it be that the aquisition rate, 50 mS is too fast? Or is this attempt to solve the problem not the optimal model?