Get correct scale in Layout view

[g_terziev]

Hello,

I am working on a site plan. The units that I use is meters (Meters is set up in drawing units). In model space, I draw an area with one annotative dimension. The drawing is geolocated.

Now in Layout space I want to show this area in scale 1:100. However when I set up this scale in Layout, it zooms out far away from my drawn area. In order to see this area in Layout I have to use standard scale 1:1 which does not make sense to me.

From the position that I want to see this area, I used Google earth and ArcGIS Pro to verify and find the correct scale. The real scale turns out to be around 1:100-1:150.

On the AutoCAD layout page, it is 1:1. Can you tell me how to correct that?

Thanks in advance.

[imadHabash]

Hi,

I think that you may need to check viewport frame size to match the same model unit.

[g_terziev]

Viewport frame size? I think no... I don't want to change my viewport frame size, because I already have designed my Title block and draw my preferred viewport window.

[pendean]

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@g_terziev wrote:
Viewport frame size? I think no... 

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Based only on what you are showing us in images, the viewport scale you use with the content are a mismatch.

you can state whatever you want as a rebuttal, but without your actual DWG file no one is really going to be able to help you with this one issue without it. I suspect it's still a scaling issue, but we can't tell for sure without your file.

Can you share? If not, open a support ticket with Autodesk Support, it might be quicker. 

[g_terziev]

sure. attached is the file. @pendean 

[paullimapa · Accepted solution]

I used SCALELISTEDIT to add two scales:

1:100M = 1 paper unit = 0.1 drawing units

1:500M = 1 paper unit = 0.5 drawing units

I changed the layout paper size to A0

I scaled up the vport to match the larger paper size

Selected for the Standard scale to use 1:500M

Now it fits:

[g_terziev]

@paullimapa So, i think another solution is using -dwgunits and convert everything in meters. This will also convert the scales, like you did or maybe scalling the whole layout page 

Please tell me what do you think of this approach?

Btw thanks for the drawing.

[paullimapa · Accepted solution]

I don’t think you need to scale anything. Just manually add the scales you think you need in addition to the two I provided. It’s a very straightforward process. Draw in model 1 unit = 1M which is what you’re used to. Then in layout use the standard mm paper sizes to layout your vports. 

[g_terziev]

What bothers me is how do you get the idea that you need to use these scales: 1:100M = 1 paper unit = 0.1 drawing units,1:500M = 1 paper unit = 0.5 drawing units? How did you find out that the measurements in model space does not correspond to measurements in layout space? @paullimapa 

[cadffm · Accepted solution]

Hi,

What bothers me is how do you get the idea that you need to use these scales:

1:100M = 1 paper unit = 0.1 drawing units,

1:500M = 1 paper unit = 0.5 drawing units?

1m = 1000mm

1000mm in 1:100 is 10mm

10:1 or in other words, 1:0.1

1m = 1000mm

1000mm in 1:500 is 2mm

2:1 or in other words, 1:0.5

>" How did you find out that the measurements in model space does not correspond to measurements in layout space?"

I don't know what you mean.

[paullimapa · Accepted solution]

Question: How did you find out that the measurements in model space does not correspond to measurements in layout space? 
Answer: You posted that your drawing in model is set up as 1 unit = 1 Meter. You also verified this with a dimension. 

We’re all telling you that AutoCADs layout is by default setup 1 unit = 1mm. This is verified when you plot and all the standard paper sizes are in mm

Question: how do you get the idea that you need to use these scales: 1:100M = 1 paper unit = 0.1 drawing units,1:500M = 1 paper unit = 0.5 drawing units?

Answer: This is based on standard conversion to go from a Meter in model to mm in layout. 1mm = 0.001M. Since all the scales provided in the Scalelistedit window are based on 1 unit = 1mm you’ll just have to convert them to 1 unit = 1M. It’s as simple as moving the decimal over 3 places to the left. So 1 paper unit = 500.0mm when converted by moving the decimal 3 places to the left is 0.500M. Likewise for 1 paper unit = 100.0mm when the decimal is moved over 3 places to the left is 0.100M

[g_terziev]

@paullimapa @cadffm Thanks for the answer. By the way, I fixed this problem by adjusting the plot scale in page setup for my already defined Layout page. I can go with 1:1000 or I could go 1 mm = 0.001. But then I need to rescale my whole layout page.

With this I don't have to modify, correct and adjust the scales in scalelistedit, which will save me time also for the future drawings. What do you think of this approach, by adjusting the plot scale in page setup and use this setting for all my future layout pages? @paullimapa @cadffm 

Thanks again for your explanations.

[paullimapa]

Sure you can do that too as long as you remember why you did this. 

[g_terziev]

Thanks a lot @paullimapa

[cadffm]

Hi,

>>"What do you think of this approach"

Everyone can go both ways -

Plot Layout 1:1 or set a plot scale what matchs the difference between your modelspace units and your paperspace (what is always mm).

We are talking about models what are drawn not in inch or millimeter only

# # #

pro 1:1

This is common and the most users using this set up (the most tutorials, books and most tips from helpers will fit.

Think about your Colleague and other Recipient of the data.

con

You have to live with the sample scale names (you have to use 10:1 if you want to print 1:100 a Meter-model)

[NOTE: If someone not using annotation features, I say: Don't look at scales, the only important viewport property is the scale factor. Learn it, use it]

Scales are implemented for annotation feature and one very clever developer thought that it a good idea that (Layout/PaperSpace)plot scales and annotation scales are the same.

 # # #

pro 1:nnn

You can use the sample scales, independing of your model units.

con

This is uncommon ( I can't say how many users are going this way) and just few users using this set up (the fewest  tutorials, books and most tips from helpers will fit.

Think about your Colleague and other Recipient of the data.