Getting the circle midpoint inference

Gaieus

Rumcajs, the other day you could not find Sandbox there either. Have you reinstalled SketchUp as I advised back then?

Another question: is this still a circle? What does the Entity info (open from the Window menu) says about it when you select the perimeter (only)?

rumcajs

Sure. I use sandbox.

Arc - Radius 0,20m ; segments 24

I have the Utilities on.

pbacot

Then it got cut and you have an arc or arcs instead. Still if you get the move tool and run the cursor on the arc edge without clicking (hover) then go towards the center you will get a point.

Gai-- I don't have a circle center tool in MY utilities. The "Query tool" there does like to find circle centers quickly though. Funny how some tools are "better" at it?

So now that you can find the center put a guide point there. Tape measure tool, hoover on circle or arc edge move to center, draw out from point that appears--on the blue axis a little ways. The "point" cross will not be right on the center (it will be directly above or below) but the other end of the short guideline will. Include the guide in the component.

I imagine you are then going to copy the component by alt-moving from the center to somewhere on a grid. If you set the component axis on that center you can load new components from the component browser to those grid points instead, using the axis insertion point. (Or just do an array as mentioned before.)

rumcajs

How does the Query work? Should I select circle and then run Query? And then make component?

pbacot

@rumcajs said:

How does the Query work? Should I select circle and then run Query? And then make component?

No, that was just a comment regarding Utilities Extension that Gaieus mentioned. Query gives some information about objects. BTW to use the Utilities look for it under the Tool Menu. Sorry if that was confusing.

For marking the circle or arc center do as I note with the guide point (one way). Activating the Tape Measure tool to make the guide point, allows you to find the center point. Then make your component with the guide point in it. Myself, I would probably just set the component axis at the circle center instead, but it depends how you want to use it later.

rumcajs

So the only thing I should do is to insert guide point and then to make component?

So you also don't have the feature about which Gayieus spoke? Maybe it is part of SU Pro only?

Jean Lemire

Hi rumcajs, hi folks.

The Point at centertool is available in SketchUp (SU) free as well as Pro.

To activate it, do this:

1 - Use Window menu --> Preferences --> Extensions. You will see many checkboxes in the rigth part of the dialog window. One of them in labeled Ruby Script Example. Click the check box to activate it. If it is activated, an X shows in the box. While at it, check all boxes to get all the tools.

2 - Exit the preferences.

3 - Close SU.

4 - Restart SU.

5 - Draw a circle.

6 - Right click the circumference of this circle to get a contextual menu.

7 - The last choice in this contextual menu reads Point at center. Choose it to get a guide point at the center of the circle.

This also works with polygons and arcs.

Just ideas.

TIG

Actually isn't it...
Preferences > Extension > 'Ruby Script Examples'
To activate the Arc-Center-Tool...

rumcajs

RE:
Jean Lemire
after I drawn the circle? Do you mean click on surface? No such menu item there.

To all:
I'm having break from SU for few weeks or months. For that reason cannot to test it now.

pbacot

@rumcajs said:

RE:
Jean Lemire
after I drawn the circle? Do you mean click on surface? No such menu item there.

To all:
I'm having break from SU for few weeks or months. For that reason cannot to test it now.

Thanks for letting us know.

To reiterate what (some of us) found out for the first time: You need to go into Preferences/ Extensions and activate "Ruby Script Examples". Then when you right click on a circle or arc, the context menu has the item: "Point at Center". Clicking that you will give a guide point at center.

Don't click on the surface, click on the circle shape.

See also ThomThom's Guide Tools: http://forums.sketchucation.com/viewtopic.php?t=30506#p267835

Enjoy your time away.

[flash=560,315:i2vd4gq0]http://www.youtube.com/v/UPw-3e_pzqU[/flash:i2vd4gq0]

Jean Lemire

Hi Tig, hi folks.

Sorry for the error, I edited my previous post.

Thanks and best regards.