Once you have created your layout, you have the option to enlarge or reduce (as far as possible) your plan by calling the Change Layout size function from the Extras menu.

This function, simple at first glance, requires a little thinking and to calculate upstream the new parameters. This is what we will see in this article.

Summary

Window overview

This window is divided into three sections:

  • An information area about the dimension of your layout. There are the length and height as well as the respective number of nodes for these two dimensions,
  • An information area about the dimension of your plan. There are the length and height as well as the respective number of nodes for these two dimensions,
  • Four input fields to enter the new value (s). Which matches clockwise, up, right, down and left,
  • Two buttons: Change and Cancel.
  • Four input fields to enter the new value (s). Which matches clockwise, up, right, down and left,
  • Two buttons: Change and Cancel.

To start, we invite you to load the EURO_Vmax_v7 project which is located in the Resourcen \ Anlagen folder. This project comes standard with EEP and its dimensions are perfect for our item.

Once loaded, go to the Extras menu and choose the Change layout size command. You should find the same values ​​from the screenshot above (11.920 km in width and 0.347 km in height).

You can retrieve this same information in the Layout Information window accessible via the File menu by selecting the command of the same name. Precisely, we are going to open it, because we need important information.

In our example, we have 150 knots for 1 kilometer. Write down this value somewhere and close the window.

Now we are going to enter the value -10 (nodes) in the input box on the right:

What happened ? EEP changed our -10 to -2 automatically? Since we wanted to modify the value on the right in the previous window, let’s look at what happened to the right in the layout:

We notice that there is not enough room to reduce our plan by -10 knots. At most, the program allows us to reduce it by -2 knots. For security EEP will prevent us from recklessly reducing the project plan and excluding parts of the layout.

The question to ask is: ‘2 knots correspond to what length?’. A simple calculation will allow us to provide an answer:

  • We know we have 150 knots per kilometer,
  • 1 km = 1000 meters, so 1000/150 = 6.66 meters per node,
  • The answer is 2 x 6.66 = 13.32 meters.

We can therefore reduce the distance to the right to a maximum of 13.32 meters. We will start over to check:

After viewing the video, we can notice the before and after treatment, the distance to the right is shorter. We can verify this by calling the Change layout size window again. Our initial value was 11,920 km in width.

If everything went well and if we deduct the 13.00 meters (rounding off), we should get 11.907 km for our new width. Let’s go check it out right away:

As we can see, we have the expected value, that is to say 11,907 km, which is now our new width.

At this stage, lets remind ourselves what we learned in the article New layout, field size, nodes : the maximum nodes value for a layout is 1 000 000 nodes.

lets calculate the total  number of nodes for our layout:

  • We have 1786 knots for the width and 52 for the height,
  • Knowing that we have 150 knots per kilometer,
  • (1786 x 150) + (52 x 150) = 267,900 + 7,800 = 275,700 knots in total.

We are still far from the 1,000,000 knots authorized by the program. Also, we will increase the height of our layout by adding 100 nodes in height. We will therefore go to 52 + 100 = 152 knots multiplied by 150, which gives us a total of 152 x 150 = 22,800 knots in height. Let’s see in video, how the program behaves:

As we can see, we have the expected value, that is to say, 1,013 km, which is now are new height.

Concrete case where resizing is impossible

As long as the total number of nodes in your layout is less than 1,000,000 nodes, resizing is quite possible. Of course, the closer your layout gets to this value, the more limited the resizing will be. However, there is another case to take into consideration when creating the layout and this is what we will now look at:

Remember in the article Creation of a new project, size of the land, nodes, the program had automatically corrected the value to 111 nodes. However, if you validate the maximum value proposed by the program, any subsequent resizing will be impossible!

So be sure to leave a small margin (here in our example, 80 – 100 knots maximum) just in case.

When resizing is not possible, the window closes without a warning message after clicking the Change button.

This article is now complete. If you have any questions or suggestions, please give us your feedback in the leave a reply input box below.

Thank you for your helpful comments. Have fun reading an other article. 

eep-world.com team

This article was translated by Pierre for the English side of the EEP-World from the article written by Domi for the French side of the EEP-World.

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