Gps Parcela User Instructions

CONTENT
- Introduction
- Start
- Registering a user account
- Login
- Settings
- Land parcel data
- How to enter land parcel coordinates
- Navigation to a land parcel
- How to get coordinates
- List of visible satellites
- Route recording
- List of geoportals

INTRODUCTION

Gps Parcela app is intended for all private landowners who want to have on their smartphones or tablets the data of all their land parcels with corresponding maps so they can easily navigate to their land parcels.
The app is also intended for all real estate, precision agriculture and forestry professionals.
This app is based on the idea that all cadastral data (primarily coordinates) of your land parcel are visually available to you personally via the Internet on the geoportal of your country.
However, there is no possibility that any app has a free access to cadastral data of all geoportals in Europe.
Therefore, with a little effort and with our help, you can type into this app the coordinates that you have read on the geoportal. Definitely this is the most precise way to define the boundaries of your land parcel so that you can use all features of this app.

START

After the app gets started, you will see on the screen a map of your location and a bottom toolbar with icons.

 

From left to right, there are the following icons: User, Data, My land parcel, My location, Map style (streets/landscape), Settings, Routes.
Right of the icons there are the following data:
Distance from My location to My land parcel, only if the land parcel is shown
Distance traveled, only if route recording is on
Longitude and Latitude of My location, in round brackets
Gps accuracy, in square brackets, in meters
Number of visible satellites for position calculation, in curly brackets
My speed, in m/s
Gps source ( satellite, wi-fi,…)
At the start of the app, it is necessary to wait in the open space for some time (about 10-15 seconds) to get the GPS signal and GPS coordinates of your location.
Tap the User icon to create your user account with your e-mail address and password. The following window will then appear.

First select one of the following languages: English, German, Italian, Croatian, Slovenian, Serbian, Czech, Slovak, Polish, Spanish, Portuguese, French. The default language is English.
In this window you can do the following:
1. Start registering your account
Tap the "or continue to register" button and a new registration window will appear.
2. Transfer license from old to new smartphone
Enter the login information you used on your old smartphone. Login information is: e-mail and password. Tap the "Login" button. Previously, you should have deactivated your license on your old smartphone.

REGISTERING A USER ACCOUNT

At the first start of the app you will have the option to sign up for a user account with the following data that you need to enter: your e-mail address and password, your name and address.
Your e-mail address and password are tied to your smartphone only and your email address and password can not be used to sign in to the Gps Parcela app on another smartphone or tablet. We will never share your information with third parties.
Tap "Create a user account" button.
You need the account only if you want to subscribe for usage of Gps Parcela app for your land parcels using geoportal reference coordinates. The annual subscription amount is 29 EUR including VAT.
Once you've created your account, you'll receive an email containing an offer for subscription with the payment instructions.
If you do not accept our offer, your account will be automatically cancelled.
After signing up for the user account, you can use until the end of the day all the app functions without making a payment.
You can make the payment using PayPal.
Please click on the link below to pay with PayPal.

LOGIN

Tap the User icon again to see changes to your payment status.

Once we receive your payment, you'll be able to fully use the app.
Tap the "Login" button to let the app change your payment status.
After that, you'll see the message with the validity end date of your user account.
You can also order coordinates for your cadastral parcel from our web server.
This is an additional service we provide to help you use this app.
Enter the full name of the cadastral municipality and the cadastral parcel number.
Tap the "Send inquiry" button and this will automatically send your request to our email.
You can download the coordinates in a file from our web server under certain terms that you will receive from us in the email. The price of creating a file with coordinates for one of your cadastral parcels is 10 EUR. The coordinates will be read from the geoportal of your country (if available) according to the terms of the User Instructions.

SETTINGS

Tap the Settings icon

Select a country and a reference coordinate system for your land parcels.
The list of countries supported by this app is shown at the end of this guide. The list of countries is a drop down list.
Tap the "List of geoportals by country" button and a web page with a list of geoportals will appear.

Tap the "License transfer" button and you will deactivate your license that can be reactivated on another (or the same) smartphone. The license consists of the following data items: email and password.
You can activate a deactivated license on another smartphone by entering your email and password when registering a user account and then tapping the "Login" button. To restore the license to the first smartphone, tap the "License Transfer" button again on the second smartphone, then tap the "Login" button on the first smartphone. If you are returning licenses to the second smartphone, tap the "License Transfer" button on the first smartphone again, and then tap the "Login" button on the second smartphone.

Tap the "Subscription" button and a window will appear in which you can purchase a subscription to the Gps Parcela app in the Google Play Store using the payment method from your Google account.

Tap the "Backup and Restore" button and a new window will appear in which you can back up and restore files.
Gps Parcela app stores land parcel data to internal private storage. Each app has its own internal storage that is only available to that app. In addition to internal storage, there is also external storage that is available to all apps under certain conditions. When the app is uninstalled, its internal storage is deleted and all land parcel data is lost. Therefore, it is useful to back up files from internal storage to a separate backup folder in external storage. For privacy protectin, the user must create or select a backup folder himself. If necessary, the user can restore files from the backup folder to the internal storage of the app.
First you need to choose an existing folder or create a new folder. Then tap the "Copy the file to the backup folder" button or the "Restore one file from the backup folder" button.

Tap the "List of visible satellites" button and a new window will appear in which you can see a list of visible GNSS satellites.

LAND PARCEL DATA

Tap the Data icon to edit the land parcel data in new window.

In this window you can:
create a land parcel file by entering the coordinates,
update the entered coordinates,
download the cadastral parcel coordinates from our web server,
transform the reference coordinates to Gps (WGS84) coordinates,
get the land plot area and boundary line lengths,
save the land parcel file in your local smartphone storage folder,
open a land parcel file from the local smartphone storage folder,
delete the open land parcel file from the local smartphone storage folder
close the open files with "Clear" button,
show the map of the open land parcel file.
You can open and display up to 10 land parcels simultaneously.
The name of the local storage folder is GpsParcela.

HOW TO ENTER THE LAND PARCEL COORDINATES

-First you need to read the coordinates for your parcel from the cadastral map of the geoportal for the selected country and the coordinate system.
-Tap the "Clear" button. In the light blue field under the heading "Point" number 1 will be displayed . Two light blue fields for two coordinates will be empty.
-In each of these two light blue fields you need to enter a single coordinate.
-Tap the "Add" button. The values ​​of the coordinates you typed will be overwritten above in two gray fields. The number 2 adjacent to the "Point" heading field will appear. The adjacent two light blue fields will be empty and ready to enter the coordinates for point number two.
-Enter the coordinates for all points according to the procedure described above. Each point has its own ordinal number.
-The points with the coordinates can be moved up and down by tapping the up and down buttons.
-You can change the values ​​of the point coordinates in light blue fields and then tap the "Update" button.
-You can remove the point from the light blue fields by tapping the "Remove" button.
-You can transform values ​​of the coordinates in light blue fields to Gps (WGS84) coordinates by tapping the Globe icon. With the first tap, the coordinates for longitude and latitude will be shown in the decimal format and with the second tap the Gps coordinates will be shown in the clock format "degree:minute:second"
-After you have entered the coordinates for all points, type the land parcel file name into the light blue field under the heading "Name of the land parcel". Tap the "Save" button. The parcel file name will then appear in the parcel file list. The file name can contain only letters, digits, and a minus sign.
-You can see the parcel map by tapping the "Display" button or by tapping the My parcel icon.
-You can scroll up and down the list of land parcels by tapping the up and down buttons. Also the land parcels list is a drop down list.
-Tap the "Open" button, and the land parcel file name from the gray field will open, which means that the data for all points will be in the list of points. At the same time, the value of the land plot area will be shown and the boundary line lengths will be listed under the heading "Distance".
-Name of the opened parcel file will appear in a light blue field under the heading "Name of the land parcel".
You can delete this parcel file by tapping the "Delete" button.
-Tap the "Download" button if you have ordered the cadastral parcel coordinates from our web server.
You will see a list of your ordered parcels (one or more) from our web server.
Select a name from the list and tap the "Select a land parcel" button
and your parcel file will be downloaded from our web server in your local smartphone memory.
After that, the ordered file will appear in your land parcel list.
Tap the "Display" button.

NAVIGATION TO A LAND PARCEL

display the land parcel map

Tap the My land parcel icon to display map of the selected land parcel.
The land parcel is labeled with a yellow color marker.
Tap the My location icon to display map of my location
The current location is marked with a green marker.
However, if you stop moving (the speed is zero) then the automatic averaging for longitude and latitude in the last 10 readings of Gps points for which the accuracy is less than 5 m (for Android) starts automatically. Points with accuracy greater than 5 m are not taken into account. The location marker color becomes red and the average value for longitude and latitude is displayed in the round brackets , which results in a higher accuracy of Gps coordinates reading.
This app can not be used for geodetic surveying.

HOW TO GET COORDINATES

of your cadastral parcel from geoportal

To precisely define the coordinates you need to use a PC or laptop with a mouse instead of a smartphone that has too little screen for this purpose.
Click on a link from the geoportal list and there you can easily get the relatively accurate reference coordinates for the cadastral parcel from the displayed cadastral map.
There are two possibilities to do so, depending on the chosen geoport.
The first possibility is to enter the full name of the cadastral municipality and the cadastral parcel number and then click on an icon that leads you to view the map of your land parcel.
The second possibility is to zoom in the displayed map until the boundaries of the parcels appear, where you can recognize your land parcel by its number.
In both cases, move the mouse over a corner point and you will be able to read on the screen the corresponding reference coordinates. Then you should enter the coordinates for each corner point into the app directly.
You need to know that the accuracy of data and maps is not absolute because it depends on a lot of factors. For example, cadastral maps on geoportals are not always absolutely accurate and usually the coordinates have a meter accuracy. Although in most cases your land plot corresponds to the real situation on the ground, it may still happen that this is not always the case, because of inaccurate input data.

read more: Accuracy of GPS Data ...

LIST OF VISIBLE SATELLITES

Tap the Settings icon and the "List of visible satellites" button

Your smart phone calculates coordinates and other location data from the data it receives from navigation satellites.
The navigation satellite system is called GNSS (Global Navigation Satellite System).
There are following four GNSS systems: American GPS, Russian GLONASS, Chinese BeiDou and EU Galileo.
GPS was the first and the only one system so it is the most famous one. In the meantime, however, the other 3 global navigation satellite systems have been operational.
Most satellites send data in the so-called L1 frequency band, however the latest satellites send data in the L5 frequency band.
L5 signals are significantly more accurate than L1 signals.
The names of the frequency bands are: GPS (L1, L5), GLONASS (L1, L5), BeiDou (B1, B2a), Galileo (E1, E5a).
Older smart phone models have a chip only for receiving GPS L1 signals, while newer smart phone models have a chip for receiving signals from all GNSS systems with a dual frequency band L1 + L5.
You will have the most accurate coordinates of your location in the open with a quality smart phone that receives L1 + L5 signals from a large number of visible GNSS satellites.
For each currently visible satellite, the following data is displayed:
Id- satellite identifier within the GNSS system
GNSS- the name of the GNSS system
Freq - the frequency band of the signal sent by the satellite
C / N0- signal strength
Elev, Azim - elevation and azimuth of satellite positions
read more: Accuracy of GPS Data ...

ROUTE RECORDING

tap the Routes icon

You can record information about your current location (coordinates, speed, time) while walking or driving. The data is automatically saved to the daily route file with a period of 2 seconds.
Tap the "Display" button and the route will be displayed on the map as a line in orange. If the time interval between the two points of the route is greater than 15 minutes then the route is interrupted and drawn below in a different color. A maximum of 12 route interruptions is possible. The orange marker marks the point with the selected time on the route. Tap the orange marker and the date and time of the selected point will appear in a small window above the marker.
To return to the Route window, tap the Routes icon in the bottom toolbar.
During recording, the value of the odometer will be displayed in the lower toolbar.
You can reset the odometer to zero by tapping the "Reset odometer" button.

In this window you can:
start and stop the route recording,
open the daily file of the recorded route from the local smartphone storage folder,
delete the open file of the recorded route from the local smartphone storage folder,
close the open file with the Clear button,
browse data for each point of the recorded route with the forward and backward keys,
get the total length of the recorded route, the total time and the number of points,
reset the odometer,
show the recorded route on the map.
The file list contains files for only one month.
Select the month and year and tap the "Populate the list of routes for the selected month" button.
For each point, the time, coordinates of longitude and latitude, speed and length of the route from the beginning to that point are displayed.
The file list is a drop-down list.
The file name consists of the "XY-" prefix and the date.
Note: Recording will be turned off when your app goes into the background because the Gps Parcela app is not running in the background. It is best to hold your cell phone in your hand when route recording is on.