And then come to Jing's today in this video, you will learn about projections and how to correctly
use the projections in our projections and, of course, how it is played.
The information about the other graphic data that we have about the arc is Trayvon Martin.
And of course, the eye is very good so often with this little dimension on a map or even on a computer
screen, as you can see here, the map is open.
Now, let's add the data.
Go to a big guide then in this dynamic toolbar and click on it at the ballot box is displayed in this
dialog box.
Browse through the location and select the shape of the countries of the world and then choose.
Add the ballot box is closed and the phone is added in the database area.
As you can see here, it has been added.
So here you can see the presentation of three dimensional on two dimensional computer monitors.
That must mean that they are going through some kind of transformation in order to display in the.
So now let's look at our map handles this predictions go over the table of content and click on the
icon.
If life is displayed from the fly out, just drop this option in the frame.
Drop this dialog box with coordinate system that is displayed.
And here in this box, click on this minus in order to see the two major folders, graphic coordinate
system and project card system.
And this smaller project, that coordinate system is basically what I would just call predictions.
Imagine distinctions that used to be made here all over the map.
Very confused.
This is related in that our data should be stored in what is called a geographic coordinate system.
Then we looked at this in the last video with the countries of the world.
We saw all the data were stored according to what geodetic survey of nineteen eighty four by covid used
to display that they should be, according to the transformation that we find here in the projected
coordinate system for now then projected coordinate system folder.
So look into the folders.
We will start to see things that will probably look a lot more familiar, especially if we look at the
word folder.
So expand.
So it seems like that the kind of things that we recognised as predictions, as we can see here, Eckardt
Equidistant, Gornick Equidistance, Cylindrical Marcato, Maler, Cylindrical Robinson and many more.
We have whole bunches given here.
This thing starts to look like the kind of things that we think of as projections, and that is why
they are so we can choose any one of this.
And for the purpose, for the display of this production, the automatically transform the data according
to the equations, that is the production in order to display it in the computer screen, as you can
see here.
Now, now, before I click and show you that, I want to show you one of the peculiarities about these
programs, not based on here we have the current government system and that report.
What is the current coordinate system of the data frame?
And this is that map and really start to get the difference between how we are going to support predeliction
and data.
Awfullest is how to display the data and then Stanfield's now closest dialog box.
So you can notice that it has to be the case that since looking at this one data here on two dimensions
on the computer screen, it has to be project and there is not any other way around.
And of course, this is the computer system.
You probably have then something systematic to transform the data on this doodah management management
interface, which of course it has.
So you might be tempted to ask them what prediction they use in order to make this data.
It must have done something then.
Achmat is unfortunately it ended up that in that kind of thing, because if the goal was to list difference
between a particular data file, we know how the data has been stored.
So let me show you that now go over to the table of content and read.
Click on the link.
I can apply.
It is to speak from the layout.
Is option, it brought this dialog box with coordinate system that Jordan is despite the problem is
under this leadership and information about how it's being displayed, but it really doesn't when the
data is that lockbox opens it, that it's using WTS nineteen eighty four, let them notice.
Nineteen eighty four is not a projection.
It's not really for displaying that data in two dimensions.
So what the IMF is doing, it's just taking all the points in the data quite as not being more latitude
and longitude, as if the latitude and longitude and its coordinates.
Now let me close this data frame dialog box up.
The district coordinate system is a coordinate system that specified each find, uniformally in upline,
but set up numerical limits.
And the numeric governments may be the latitude and longitude that is X and Y value.
So yes, this is technically a projection.
And in fact, one of the easiest ways that you can make the projection in just a short back is vertical
latitude and longitude coordinates.
I this great coordinate and just log that in two dimensional space.
When we do that, the production that gives that has some peculiar properties and we go and look bad
in more details, but rather then we then drive for method that they need their drive to change the
protections that make them go to the table of contents and then click on the link icon.
If layup is displayed from the player, fills up this option, they get framed up this dialog box with
coordinate system that Jordan is displayed in this dialog box, convert the projected coordinate system
and expand the folder because this is one data.
So scroll down and expand one folder.
And here you have so many predictions, as you can see.
So let's display, according to Robinson, which is compromised projections, not just Robinson projection
and then click on Apply Button and open.
The dialogue box is closed and here we go.
It has done a mathematical calculation on the data in order to display it according to the equation
that the Dobinson prediction, very importantly, if we go, they believe content and right.
Click on the shape of the countries of the word, a fly up is displayed from the fly.
I'll just drop this option.
Dylann Roof is the black box because that chosen is displayed.
And here you can see nothing has been changed about the data.
The data is still lagging and longitude points that have been collected according to the specification
of WGAN nineteen eighty four.
So most this dialog box again go to table of content and I click on the left.
I can apply out its display from the player choose properties option.
The data frame is that the box with coordinate system that chosen is displayed.
They are now just being shown here on the computer screen according to the type of projection.
That's the distinction between they store that and how we display data.
Now, if you want to change the projection again, those marketers projection and then just apply button
and that does okay.
But then the ballot box is closed.
So now here we are using marketer's predictions.
This is project specific so we can see about this project.
And if all the data, according to one prediction, what the purpose of the project and then use the
same data in different production, in different project.
That's I hope you like that we stay beyond.