Observed over the weekend at Echo Lake, near Bracebridge, were 11 spp. of warblers: REDSTARTS YELLOWS BLACK AND WHITE BLACK THROATED BLUE CHESTNUT SIDED WILSON'S YELLOW RUMP CANADA BLACKBURNIAN MOURNING (1st sighting for me) COMMON YELLOWTHROAT Also seen were a Bittern in flight, A Great Blue Heron, a Great Crested Flycatcher, Kingbird, Kingfisher, Pileated, Y.

Some of these won't let you enter unless you have a holding tank and your Y-valve is permanently plugged. I believe the Erie Canal is one of them. perhaps someone who has recently done this trip could advise? - George of Scaramouche

> On 18 Aug 2016, at 23:26, Trygon wrote: > > Another way of approaching this type of problem is set out below.

> > > > Regards > > Otto > > > > function heartRadius(t) = (1.5 - 1.5* sin(t) + (sin(t) * > > (sqrt(abs(cos(t)))/(sin(t)+1.6)))); > > $fn=23; > > div=512; //ONLY USE POWERS OF 2 > > > > module pHeart(xy,off=0) { > > > > td = 1/div; // theta delta - the resolution of the curve > > > > // Calculate x/y co-ords separetely so I can scale > > correctly

> > 26 at 9.24.41 AM.png> > > > Slightly smaller scadfile: > > include > h = 100; > r = 30; > wall = 1; > n = h/5; > tscale = 1; > tex = [ > for (i=[0:31]) [ > for (j=[0:31]) > sin(i/32*360) * sin(j/32*360) > ] > ]; > difference() { > cyl(h=h, r=r, texture=tex, tex_size=[n,n], tex_scale=tscale,

0 f2(t) = A1 * sin(fc * t + phi)+ B for symbol 1, where f1(t) and f2(t) are always nonnegative, A1> A0 and time duration of each f1(t) and f2(t) will be 31.25 us (e.g. 1/32k) The final output (amplitude, brightness of LED) will be: s(t) = Sum_{j=1,4,6,9,...}

> before 90 deg > function offset(a,d)=(((rawradius*x_tra/2)-d*5) -scle(d)* rawradius*x_tra > ); > function x(a,d) =( scle(d)* rawradius*x_tra * abs(sin(a/2))+offset(a,d) ); > function y(a,d) =(scle(d)*rawradius*0.6 * sin(a)); //*(sin(a))*1.4 > > pa=[for(lev=[0:levs+1]) for (a = [0:step:360+step]) > [ > a == (360+step) ?

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- p1.y, theta = atan2(y_delta, x_delta), xa = p1.x +(cos(90 + theta) * rad), ya = p1.y +(sin(90 + theta) * rad), xb = xa + x_delta, yb = ya + y_delta ) side ?

I can get the bottom on the x axis > via > > a translate with y value: (r2*(cos(45))) but when I try to do something > > similar to get the top in line I can't get it right. > > Just translate the whole thing with the *correct* formula: > > > > r1=20; > > r2=40; > > a =60; > > > > translate( [0, r2*(sin(a)), 0] ){ > > rotate( [0,0,-a] ){ > > translate