@remus said:
I think the sin function must be in radians.
If you can get the angle in radians, then just put that in instead, otherwise use this formula instead:
=2*side length*sin((angle*pi)/360)
That was it! That's the reason it didn't work!
gaaah... and I was thinking that I'd missed something in the understanding of the formula.
Thankyou Remus!
btw, the formula I used based on the Wiki article is:
=SQRT(B1^2 + B2^2 - (2*B1*B2*COS(B4)))
which I optimised for Isosceles Triangles by changing to:
=SQRT(2*B1^2 - 2*B1^2*COS(B4))
where B1 and B2 is the side lengths and B4 is the angle. Both give same result as Remus's formula, but yet not the actual length of the unknown side.
...I can hear the joint laughter of my old math teachers with the echo of myself "I'll neverhave use for that in real life!" 
Hmm... The result I get from that is 1300,57568 which is the same result I get from using the Law of Cosine from http://en.wikipedia.org/wiki/Law_of_cosines
But the measured length is 518mm... Maybe I'm writing the formula wrong.
I use Excel to test the formula, and this is what I typed in:
=2*1000*SIN(30/2)
I'm in need of a math refresher course. I'm working on a DC component where I need to find out the forumla to calculate the length of the base of an Isosceles Triangle when I have the length of the two equal sides and the angles of the corners.
I've been searching around for trigonometry and triangle formulas but I just can't wrap my head around it.
Hmmm... a couple of times when I did a Save As with this component the only thing that happened was that the original file was deleted. The new version wasn't saved. Anyone else experienced this?
You're right, removing the scale handle restriction leaves handles on the sides as corners. So no need to set this attribute.
But there's still something odd though, if you wanted to restrict 2D elements to certain scale. If you only leave XY enabled you never get any scale handles.
But it'd still be good if text creation was possible...
Ok, I worked it out. I used the Xline ruby and converted the normal lines I had.
Now then, onto making a radial grid. 
But no way to do it with DC? I got some other things I'd like to use construction lines for as well. But I'd much rather use DC as I'm not familiar with ruby.
I noticed when I created a 2D component, (A grid: http://www.sketchucation.com/forums/scf/viewtopic.php?f=15&t=14353) and restricted scaling to only X and Y axis the scale points only appear on the sides, not in the corners. I would have expected it to have scale points in each corner as well.
I'm wondering if it's possible to create a dynamic grid using construction lines?
Also, is there any way to create dynamic text? It'd be nice to be able to set a label for each grid line. X uses numbers and Y uses Letter.
Reposting my bug report that got lost due to this weekend's forum crash.
The measurement bar clips the text in certain circumstanses so you only see part of the information. For instance when you have a model set in millimetres and draw a rectangle that's over 1000x1000mm, only "1000mm;" is displayed.
Very interesting plugin.
@alan fraser said:
I think the DCs are going to be tremendous when people actually figure out the power locked inside there. I'm sure it will be possible for Google to add extra functions and generally streamline the process if requested. Some of this occurred during their development. Who knows, we might even see something like Fat Faces yet. What were they other than parametric walls?
Like the profile builder plugin under development?
I was looking at all the functions the DC could do. Getting more and more impressed. Components can even be made to face the sun. Seems that a lot of control has been given to us.
Though, I'd wish that I could animate the state of the interactive component parts between scenes. Maybe some ruby wiz' comes up with something. It'd be nice if there turned out to be a way I could render animations in V-Ray.
@tyler miller said:
Hi Mike -
Sang is a member of the SketchUp Dev Team. He's been with us for about 3 years now.
We figured Bryce has take enough abuse (http://sketchup.google.com/3dwarehouse/cldetails?mid=81eb1af9d5a907aa3c9fe3a963c6d73b&prevstart=0).
Now it is Sang's turn (http://sketchup.google.com/3dwarehouse/details?mid=2faedcf7cd0ef7dd44b2fa2cac0778f5&prevstart=0)
-Tyler
And just to make it easy for him you made him Interactive? hehe Wonder how many times Sang has been poked already. Is he ticklish? ...(hmm... think I just had an idea to make the Sang model more interactive....)
@rickw said:
A big one is that ruby scripts can now bypass a lot of UI calls and boost performance (by around 2x) when creating/querying geometry. This has been a bottleneck for 3 versions, and is now fixed!
That is very good to hear. Ruby speed was another of my wishes. Would you happen to know; is the SU UI more responsive when a ruby is working now? In SU6 when a ruby did some working and displayed a progressbar, the instant you switched focus away from SU the SU UI would flicker madly for a couple of seconds before it didn't update until the ruby was finished, making it impossible to know if the ruby had stalled or not, or get any more info to when it'd complete.
But I can give my model a geographic location using the "Geographic Location" options located underneath this tickbox. Wondering what this new thing does.
