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And then come to Jing's today in this video, you will learn about projections and how to correctly

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use the projections in our projections and, of course, how it is played.

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The information about the other graphic data that we have about the arc is Trayvon Martin.

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And of course, the eye is very good so often with this little dimension on a map or even on a computer

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screen, as you can see here, the map is open.

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Now, let's add the data.

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Go to a big guide then in this dynamic toolbar and click on it at the ballot box is displayed in this

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dialog box.

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Browse through the location and select the shape of the countries of the world and then choose.

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Add the ballot box is closed and the phone is added in the database area.

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As you can see here, it has been added.

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So here you can see the presentation of three dimensional on two dimensional computer monitors.

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That must mean that they are going through some kind of transformation in order to display in the.

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So now let's look at our map handles this predictions go over the table of content and click on the

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icon.

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If life is displayed from the fly out, just drop this option in the frame.

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Drop this dialog box with coordinate system that is displayed.

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And here in this box, click on this minus in order to see the two major folders, graphic coordinate

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system and project card system.

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And this smaller project, that coordinate system is basically what I would just call predictions.

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Imagine distinctions that used to be made here all over the map.

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Very confused.

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This is related in that our data should be stored in what is called a geographic coordinate system.

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Then we looked at this in the last video with the countries of the world.

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We saw all the data were stored according to what geodetic survey of nineteen eighty four by covid used

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to display that they should be, according to the transformation that we find here in the projected

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coordinate system for now then projected coordinate system folder.

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So look into the folders.

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We will start to see things that will probably look a lot more familiar, especially if we look at the

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word folder.

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So expand.

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So it seems like that the kind of things that we recognised as predictions, as we can see here, Eckardt

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Equidistant, Gornick Equidistance, Cylindrical Marcato, Maler, Cylindrical Robinson and many more.

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We have whole bunches given here.

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This thing starts to look like the kind of things that we think of as projections, and that is why

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they are so we can choose any one of this.

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And for the purpose, for the display of this production, the automatically transform the data according

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to the equations, that is the production in order to display it in the computer screen, as you can

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see here.

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Now, now, before I click and show you that, I want to show you one of the peculiarities about these

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programs, not based on here we have the current government system and that report.

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What is the current coordinate system of the data frame?

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And this is that map and really start to get the difference between how we are going to support predeliction

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and data.

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Awfullest is how to display the data and then Stanfield's now closest dialog box.

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So you can notice that it has to be the case that since looking at this one data here on two dimensions

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on the computer screen, it has to be project and there is not any other way around.

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And of course, this is the computer system.

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You probably have then something systematic to transform the data on this doodah management management

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interface, which of course it has.

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So you might be tempted to ask them what prediction they use in order to make this data.

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It must have done something then.

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Achmat is unfortunately it ended up that in that kind of thing, because if the goal was to list difference

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between a particular data file, we know how the data has been stored.

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So let me show you that now go over to the table of content and read.

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Click on the link.

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I can apply.

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It is to speak from the layout.

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Is option, it brought this dialog box with coordinate system that Jordan is despite the problem is

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under this leadership and information about how it's being displayed, but it really doesn't when the

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data is that lockbox opens it, that it's using WTS nineteen eighty four, let them notice.

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Nineteen eighty four is not a projection.

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It's not really for displaying that data in two dimensions.

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So what the IMF is doing, it's just taking all the points in the data quite as not being more latitude

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and longitude, as if the latitude and longitude and its coordinates.

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Now let me close this data frame dialog box up.

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The district coordinate system is a coordinate system that specified each find, uniformally in upline,

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but set up numerical limits.

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And the numeric governments may be the latitude and longitude that is X and Y value.

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So yes, this is technically a projection.

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And in fact, one of the easiest ways that you can make the projection in just a short back is vertical

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latitude and longitude coordinates.

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I this great coordinate and just log that in two dimensional space.

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When we do that, the production that gives that has some peculiar properties and we go and look bad

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in more details, but rather then we then drive for method that they need their drive to change the

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protections that make them go to the table of contents and then click on the link icon.

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If layup is displayed from the player, fills up this option, they get framed up this dialog box with

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coordinate system that Jordan is displayed in this dialog box, convert the projected coordinate system

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and expand the folder because this is one data.

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So scroll down and expand one folder.

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And here you have so many predictions, as you can see.

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So let's display, according to Robinson, which is compromised projections, not just Robinson projection

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and then click on Apply Button and open.

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The dialogue box is closed and here we go.

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It has done a mathematical calculation on the data in order to display it according to the equation

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that the Dobinson prediction, very importantly, if we go, they believe content and right.

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Click on the shape of the countries of the word, a fly up is displayed from the fly.

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I'll just drop this option.

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Dylann Roof is the black box because that chosen is displayed.

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And here you can see nothing has been changed about the data.

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The data is still lagging and longitude points that have been collected according to the specification

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of WGAN nineteen eighty four.

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So most this dialog box again go to table of content and I click on the left.

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I can apply out its display from the player choose properties option.

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The data frame is that the box with coordinate system that chosen is displayed.

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They are now just being shown here on the computer screen according to the type of projection.

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That's the distinction between they store that and how we display data.

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Now, if you want to change the projection again, those marketers projection and then just apply button

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and that does okay.

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But then the ballot box is closed.

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So now here we are using marketer's predictions.

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This is project specific so we can see about this project.

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And if all the data, according to one prediction, what the purpose of the project and then use the

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same data in different production, in different project.

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That's I hope you like that we stay beyond.