Why I am drawing so far from the origin? - like I said this is taken from a large model. The precision is set to 1/2" - surely that's good enough? But I have to thank you for finding the solution - change the precision to anything and then change it back. Thanks.

The problem arises in Sketchup 2018 as well as 2021. I am using windows 10. I am posting a stripped down file which just shows two lines. First I drew a line between two points that were not measuring correctly - and the line's measurement was also incorrect. Then drew another line with that measurement - 2' - to confirm that it was in fact longer. Then deleted the rest of the model including all the layers. And I purged all the components. The problem can be resolved by copying the lines and pasting into a new file. I am wondering if there is a better way to do this - perhaps a plugin?

weird.skp

Two lines in my model measure 2' each yet one is 5" longer than the other - the precision is set to 1/2". If I copy and paste these lines into a new sketchup file the measurements become correct. I have copy and pasted the whole model ( which is rather large) and the problems go away. Is this the only solution or is there a way to clean things up whenever this happens _ and it happens rather a lot?

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Aha - always one step ahead of you. I could live with that as long as it wasn't rubbed in my nose.

You were too quick - but not quick enough

Is there a way to set the resolution of the exported jpeg file? The dimensions sizes are now okay but the poor resolution makes them unreadable.

Never mind - I got the answer - the export image dialog box contains an option for changing the resolution.

Thanks - you are on the ball Sketchup looks deceptively simple - there is an awful lot under the hood.

I need to export a 2d plan view with dimensions but they are too big in relation to the plan. Is there some way of reducing the text size? To export the plan parts and patch them together is laborious and surely the worst way of doing it

Thank you so much for this fantastic plugin Fredo6. Is there a way to tweak the snap? I'm a little heavy handed with the mouse - it's very easy for the cursor to fall off the line, or to move a line segment instead of a point when editing.

Thanks for the quick reply Fredo6. It's not in any options that I can see. Perhaps it's something a Ruby script can do. But a cursory search for such a script lead nowhere.

I've been wondering whether there's any performance gain by assigning SU to a single core (this can be done in the task manager - right click the SU process and set affinities).

So I did a modified cubic ball array test posted elsewhere on the forum. To stress the system to ensure Turbo Boost kicked in, the array was increased 64x (4x4x4). And Tmonitor was used to make sure Turbo Boost was in fact kicking in. The result - assigning SU to a single core made absolutely no difference to the score. And Tmonitor showed that Turbo Boost was used much less when SU was unassigned - which if correct means less heat.

In case anyone is wondering, my score was 1.9 sec. with shadows turned off.
Asus G73 notebook: i7 720 (1.6GHz) Ati 5870 + 1GB, 6GB ram, 1600x900 res

I didn't see any performance benefit in assigning SU to one core (the test model still degraded when orbited at the same level of complexity whether SU was assigned to one core or not) which is disappointing - with turbo mode on there is supposed to be a 75% increase in processing power on one core in this machine.

baz - thanks for confirming the behavior.

Jim - in Sketchup 7.0 the lower scenes in the Crowd Test are not affected once the tipping point is reached. But unfortunately that version of SU is much less optimized and really degrades my textures so I'll not be downgrading. I did a Google search using the info in your post - there's nothing on "Sketchup.max_draw_time", but I did find an interesting site when searching "Sketchup.full_detail_render_delay_min". The whole performance issue is covered very nicely there although nothing that solves my problem. I did try changing the values of render delay in the Ruby console (once I knew the default values) but it didn't improve orbiting in the Crowd Test.

That's why I downloaded the Crowd Test model. It's very simple - just lots of 2d people. There are several scenes - each with an increasing number of people. And nothing else.

I am now curious if others are experiencing the same - please try the 500kb Crowd Test. I can sometimes get up to scene 10 before seeing any degradation when orbiting (zoomed out to just include the whole crowd). After that dropping down to scene 7 still has signs of degradation.

If you do post results please include system specs. And after reaching your limit gradually drop down to the lower scenes to see if or at what scene the degradation disappears.

My notebook specs are

i7 720
Ati 5870 with 1gb
6gb 1333 ram

By way too soon I mean that my system can easily handle all the textures on the model that SU sometimes degrades. For example there is a crowd test model that I found to check my system - increasing the scene level adds more people until the model degrades. But once that happens scenes with many less people which were orbited perfectly before will also degrade. And it's not that orbiting or zooming was difficult or jerky at all, they worked like a dream. So why would SU do that? Anyway it's a minor annoyance to a marvelous program.

In future I would like to see a setting to allow the user to decide the balance between performance and quality.

I am using the default - hardware acceleration and fast feedback. I'll mess around with the settings in the Ati control panel - didnn't really want to do that just for SU. I am still left wondering why models degrade when they were fine before (all others things being equal)? Still a terrific program.

Thanks for the tips TIG. The model is on the origin and edge - extensions etc, were never switched on. I am quite new to SU so haven't played around with styles and scenes much. I use SU to design buildings for customers here in India - I used Rhino before but prefer the way SU does things. The default style is great for this and since I don't need to make fancy presentations haven't bothered with the other styles. Parts of the model degrading to wire-frame is not a big issue - I am just surprised it kicks in it way before my PC is stressed out, even to models it handled perfectly before. I was thinking it was a problem with my new notebook, but it has a decent graphics card - Ati 5870 with 1 GB dedicated - it should be able to handle a 12MB file. Obviously from your reply there isn't a simple setting to prevent the degradation or set a higher threshold. I doubt I'll get into scenes at the present time as the models handle fine apart from the degradation. Thanks again.

This kicks in way too early - often on models that the camera could previously easily orbit, zoom without degradation - is there a way to disable it or adjust the settings?