Hello smile

I'm Siobhan Curran/Kisa Naumova, and this is my weblog. I tend to write about stuff like crossdressing, Macs, code, cats, wine and Second Life, but in general it's just an ongoing conversation about all sorts of stuff. If you'd like to know a little bit more about what this all is, I recommend starting on this page which has a little bit of info on who I am, and what I'm trying to do — or you could dive into my five years worth of archives if you like.

Otherwise, feel free to close this box and explore...

webserver.local

airt.eyefood.co.uk has a 40Gb connection. I have got to get his ports open...

Gender-bending avatars inspire less trust

"The study reveals that androgynous digital personas (avatars) are perceived as less trustworthy than ones that are clearly either male or female." — which doesn't, I feel, say particularly much about crossgender avatars like me (via alt + life + esc

Munsell color system

"In colorimetry, the Munsell color system is a color space that specifies colors based on three color dimensions, hue, value (or lightness), and chroma (roughly saturation)." — [Wikipedia]

SVG parsing with Rotation

Drawn in Illustrator, imported into SL

/curtsey

I should, perhaps, explain a little...

You will, no doubt, remember this — seeing as I've linked to it almost daily since I made it :unsure:

The great thing about re-making our current building was that it's all right-angles — everything is aligned north-south, or east-west — so I didn't have to worry too much about trivial things like "angles".

But today I got my hands on the plans for our new building — which (IMHO) bears a little too much resemblence to the 2012 Olympic logo that everyone hates so much — all pointy angles and sharp corners.

I've been meaning for ages to try and include the rotation of an obect in my original code, and I finally worked it out last night ... when you rotate a rectangle, you get a matrix containing the sine and cosine of the angle you're dealing with.

transform="matrix(0.8258 -0.564 0.564 0.8258 -156.5689 134.9696)"

Simple — just run a quick preg_match() through an acos() and you're done.

Or, rather, not done.

What I totally forgot was that the arc cosine of cos(θ) is the same as the arc cosine of minus cos(θ), so I ended up with things rotated in totally the wrong directions.

Fortunately, unlike a lot of SL coders, I have access to that powerhouse of mathematical information, known colloquially as "My Dad™" — at which I threw a series of numbers, and got back a "Ah, you probably need to check the whole transformational matrix to see if sin(θ) is positive or negative as well".

Which did the trick :biggrin:

What does all this mean? Well, basically, I can sketch away to my heart's content in my drawing-app-of-choice, and import the whole sodding lot into Second Life without having to worry about whether I'm building a regular right-angled box, or a twenty-million-pointed star.

Which is probably of no interest to anyone :smile:

Are you wearing a top-hat???

Alli' Cat'

Yes :smile: It's rather fetching, no?

I should, perhaps, point out that when I typed that last comment, the text accompanying the picture wasn't there; so it didn't seem like I was being sarky.

Alli' Cat'

Yes, you caught me mid-edit — should I move it?

fetching, no?

Yes, especially if worn with a black ribbon (undertaker stylee), or perhaps a veil... Methinks it's about time hats with veils made a comeback (ymmv).

Alli' Cat'

move it?

:biggrin: No, 'cause then the next comment makes even less sense

I'm going to shut up now, this conversation is doomed to cross 8-S

Alli' Cat'

I could just always delete all your comments :smile:

delete all

Humph! :tongue:

I've got a dim memory, from my beeb days, that the solution to trig' rotation problems was to use 'radians' (or maybe 'gradians') instead of degrees; but I could be wrong — it was a l-o-n-g time ago.

Alli' Cat'

My Dad showed his rare wit once after too many questions from an incomprehending young mind.

"But why can't I?"

"Just because."

"Eh? 'Coz what?"

"Coz theta"

"Eh?"