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d3-shape - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

img/area-radial.png
img/line-radial.png
img/star.png
img/triangle.png
img/wye.png
src/curve/radial.js
src/descending.js
src/identity.js
src/math.js
src/noop.js
src/radialArea.js
src/radialLine.js
src/symbol/star.js
src/symbol/wye.js

2

build/bundle.js

@@ -1,1 +0,1 @@

var version = "0.1.0"; export * from "../index"; export {version};
var version = "0.2.0"; export * from "../index"; export {version};

326

build/d3-shape.js

@@ -14,4 +14,5 @@ (function (global, factory) {

var pi = Math.PI;
var piHalf = pi / 2;
var halfPi = pi / 2;
var tau = 2 * pi;
function arcInnerRadius(d) {

@@ -38,3 +39,3 @@ return d.innerRadius;

function asin(x) {
return x >= 1 ? piHalf : x <= -1 ? -piHalf : Math.asin(x);
return x >= 1 ? halfPi : x <= -1 ? -halfPi : Math.asin(x);
}

@@ -108,4 +109,4 @@

r1 = +outerRadius.apply(this, arguments),
a0 = startAngle.apply(this, arguments) - piHalf,
a1 = endAngle.apply(this, arguments) - piHalf,
a0 = startAngle.apply(this, arguments) - halfPi,
a1 = endAngle.apply(this, arguments) - halfPi,
da = Math.abs(a1 - a0),

@@ -280,3 +281,4 @@ cw = a1 > a0;

function curveBind(interpolate, args) {
function bind(curve, args) {
if (args.length < 2) return curve;
args = slice.call(args);

@@ -286,10 +288,6 @@ args[0] = null;

args[0] = context;
return interpolate.apply(null, args);
return curve.apply(null, args);
};
};
function linear(context) {
return new Linear(context);
}
function Linear(context) {

@@ -323,2 +321,6 @@ this._context = context;

function curveLinear(context) {
return new Linear(context);
};
function x(p) {

@@ -339,3 +341,3 @@ return p[0];

context = null,
curve = linear,
curve = curveLinear,
output = null;

@@ -382,3 +384,3 @@

area.x = function(_) {
return arguments.length ? area.x0(_).x1(null) : x0;
return arguments.length ? (x0 = typeof _ === "function" ? _ : constant(+_), x1 = null, area) : x0;
};

@@ -395,3 +397,3 @@

area.y = function(_) {
return arguments.length ? area.y0(_).y1(null) : y0;
return arguments.length ? (y0 = typeof _ === "function" ? _ : constant(+_), y1 = null, area) : y0;
};

@@ -412,4 +414,3 @@

area.curve = function(_) {
var n = arguments.length;
return n ? (curve = n > 1 ? curveBind(_, arguments) : _, context != null && (output = curve(context)), area) : curve;
return arguments.length ? (curve = bind(_, arguments), context != null && (output = curve(context)), area) : curve;
};

@@ -424,2 +425,4 @@

function noop() {};
function point(that, x, y) {

@@ -436,6 +439,2 @@ that._context.bezierCurveTo(

function basis(context) {
return new Basis(context);
}
function Basis(context) {

@@ -478,5 +477,5 @@ this._context = context;

function basisClosed(context) {
return new BasisClosed(context);
}
function basis(context) {
return new Basis(context);
};

@@ -488,2 +487,4 @@ function BasisClosed(context) {

BasisClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -528,5 +529,5 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =

function basisOpen(context) {
return new BasisOpen(context);
}
function basisClosed(context) {
return new BasisClosed(context);
};

@@ -567,7 +568,5 @@ function BasisOpen(context) {

function bundle(context, beta) {
return beta == null ? new Bundle(context, 0.85)
: (beta = +beta) === 1 ? basis(context)
: new Bundle(context, beta);
}
function basisOpen(context) {
return new BasisOpen(context);
};

@@ -616,2 +615,8 @@ function Bundle(context, beta) {

function bundle(context, beta) {
return beta == null ? new Bundle(context, 0.85)
: (beta = +beta) === 1 ? basis(context)
: new Bundle(context, beta);
};
function point$1(that, x, y) {

@@ -628,6 +633,2 @@ that._context.bezierCurveTo(

function cardinal(context, tension) {
return new Cardinal(context, (tension == null ? 1 : 1 - tension) / 6);
}
function Cardinal(context, k) {

@@ -671,5 +672,5 @@ this._context = context;

function cardinalClosed(context, tension) {
return new CardinalClosed(context, (tension == null ? 1 : 1 - tension) / 6);
}
function cardinal(context, tension) {
return new Cardinal(context, (tension == null ? 1 : 1 - tension) / 6);
};

@@ -682,2 +683,4 @@ function CardinalClosed(context, k) {

CardinalClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -721,5 +724,5 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =

function cardinalOpen(context, tension) {
return new CardinalOpen(context, (tension == null ? 1 : 1 - tension) / 6);
}
function cardinalClosed(context, tension) {
return new CardinalClosed(context, (tension == null ? 1 : 1 - tension) / 6);
};

@@ -761,2 +764,6 @@ function CardinalOpen(context, k) {

function cardinalOpen(context, tension) {
return new CardinalOpen(context, (tension == null ? 1 : 1 - tension) / 6);
};
var epsilon = 1e-6;

@@ -787,8 +794,2 @@

function catmullRom(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRom(context, alpha)
: cardinal(context, 0);
}
function CatmullRom(context, alpha) {

@@ -844,7 +845,7 @@ this._context = context;

function catmullRomClosed(context, alpha) {
function catmullRom(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomClosed(context, alpha)
: cardinalClosed(context, 0);
}
? new CatmullRom(context, alpha)
: cardinal(context, 0);
};

@@ -857,2 +858,4 @@ function CatmullRomClosed(context, alpha) {

CatmullRomClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -908,7 +911,7 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =

function catmullRomOpen(context, alpha) {
function catmullRomClosed(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomOpen(context, alpha)
: cardinalOpen(context, 0);
}
? new CatmullRomClosed(context, alpha)
: cardinalClosed(context, 0);
};

@@ -962,7 +965,13 @@ function CatmullRomOpen(context, alpha) {

function catmullRomOpen(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomOpen(context, alpha)
: cardinalOpen(context, 0);
};
var circle = {
draw: function(context, size) {
var r = Math.sqrt(size / Math.PI);
var r = Math.sqrt(size / pi);
context.moveTo(r, 0);
context.arc(0, 0, r, 0, 2 * Math.PI);
context.arc(0, 0, r, 0, tau);
}

@@ -1004,6 +1013,2 @@ };

function linearClosed(context) {
return new LinearClosed(context);
}
function LinearClosed(context) {

@@ -1014,2 +1019,4 @@ this._context = context;

LinearClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -1028,2 +1035,6 @@ this._point = 0;

function linearClosed(context) {
return new LinearClosed(context);
};
function line() {

@@ -1034,3 +1045,3 @@ var x$$ = x,

context = null,
curve = linear,
curve = curveLinear,
output = null;

@@ -1071,4 +1082,3 @@

line.curve = function(_) {
var n = arguments.length;
return n ? (curve = n > 1 ? curveBind(_, arguments) : _, context != null && (output = curve(context)), line) : curve;
return arguments.length ? (curve = bind(_, arguments), context != null && (output = curve(context)), line) : curve;
};

@@ -1118,6 +1128,2 @@

function monotone(context) {
return new Monotone(context);
}
function Monotone(context) {

@@ -1166,5 +1172,5 @@ this._context = context;

function natural(context) {
return new Natural(context);
}
function monotone(context) {
return new Monotone(context);
};

@@ -1233,12 +1239,14 @@ function Natural(context) {

var tau$1 = 2 * Math.PI;
function natural(context) {
return new Natural(context);
};
function descending(a, b) {
return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
};
function identity(d) {
return d;
}
};
function descending(a, b) {
return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
}
function pie() {

@@ -1249,3 +1257,3 @@ var value = identity,

startAngle = constant(0),
endAngle = constant(tau$1),
endAngle = constant(tau),
padAngle = constant(0);

@@ -1259,3 +1267,3 @@

a0 = +startAngle.apply(this, arguments),
da = Math.min(tau$1, Math.max(-tau$1, endAngle.apply(this, arguments) - a0)),
da = Math.min(tau, Math.max(-tau, endAngle.apply(this, arguments) - a0)),
a1,

@@ -1316,2 +1324,68 @@ p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)),

function Radial(curve) {
this._curve = curve;
}
Radial.prototype = {
areaStart: function() {
this._curve.areaStart();
},
areaEnd: function() {
this._curve.areaEnd();
},
lineStart: function() {
this._curve.lineStart();
},
lineEnd: function() {
this._curve.lineEnd();
},
point: function(a, r) {
a -= halfPi, this._curve.point(r * Math.cos(a), r * Math.sin(a));
}
};
function curveRadial(curve, args) {
curve = bind(curve, args);
function radial(context) {
return new Radial(curve(context));
}
radial._curve = curve;
return radial;
};
function radialArea() {
var a = area(),
c = a.curve;
a.angle = a.x, delete a.x;
a.startAngle = a.x0, delete a.x0;
a.endAngle = a.x1, delete a.x1;
a.radius = a.y, delete a.y;
a.innerRadius = a.y0, delete a.y0;
a.outerRadius = a.y1, delete a.y1;
a.curve = function(_) {
return arguments.length ? c(curveRadial(_, arguments)) : c()._curve;
};
return a.curve(curveLinear);
};
function radialLine() {
var l = line(),
c = l.curve;
l.angle = l.x, delete l.x;
l.radius = l.y, delete l.y;
l.curve = function(_) {
return arguments.length ? c(curveRadial(_, arguments)) : c()._curve;
};
return l.curve(curveLinear);
};
var square = {

@@ -1325,5 +1399,23 @@ draw: function(context, size) {

function stepAfter(context) {
return new StepAfter(context);
}
var ka = 0.89081309152928522810;
var kr = Math.sin(pi / 10) / Math.sin(7 * pi / 10);
var kx = Math.sin(tau / 10) * kr;
var ky = -Math.cos(tau / 10) * kr;
var star = {
draw: function(context, size) {
var r = Math.sqrt(size * ka),
x = kx * r,
y = ky * r;
context.moveTo(0, -r);
context.lineTo(x, y);
for (var i = 1; i < 5; ++i) {
var a = tau * i / 5,
c = Math.cos(a),
s = Math.sin(a);
context.lineTo(s * r, -c * r);
context.lineTo(c * x - s * y, s * x + c * y);
}
context.closePath();
}
};

@@ -1364,5 +1456,5 @@ function StepAfter(context) {

function stepBefore(context) {
return new StepBefore(context);
}
function stepAfter(context) {
return new StepAfter(context);
};

@@ -1403,5 +1495,5 @@ function StepBefore(context) {

function step(context) {
return new Step(context);
}
function stepBefore(context) {
return new StepBefore(context);
};

@@ -1444,11 +1536,28 @@ function Step(context) {

var sqrt3 = Math.sqrt(3);
function step(context) {
return new Step(context);
};
var triangleDown = {
var c = -0.5;
var s = Math.sqrt(3) / 2;
var k = 1 / Math.sqrt(12);
var a = (k / 2 + 1) * 3;
var wye = {
draw: function(context, size) {
var x = Math.sqrt(size / sqrt3),
y = x * sqrt3 / 2;
context.moveTo(0, y);
context.lineTo(x, -y);
context.lineTo(-x, -y);
var r = Math.sqrt(size / a),
x0 = r / 2,
y0 = r * k,
x1 = x0,
y1 = r * k + r,
x2 = -x1,
y2 = y1;
context.moveTo(x0, y0);
context.lineTo(x1, y1);
context.lineTo(x2, y2);
context.lineTo(c * x0 - s * y0, s * x0 + c * y0);
context.lineTo(c * x1 - s * y1, s * x1 + c * y1);
context.lineTo(c * x2 - s * y2, s * x2 + c * y2);
context.lineTo(c * x0 + s * y0, c * y0 - s * x0);
context.lineTo(c * x1 + s * y1, c * y1 - s * x1);
context.lineTo(c * x2 + s * y2, c * y2 - s * x2);
context.closePath();

@@ -1458,9 +1567,10 @@ }

var triangleUp = {
var sqrt3 = Math.sqrt(3);
var triangle = {
draw: function(context, size) {
var x = Math.sqrt(size / sqrt3),
y = x * sqrt3 / 2;
context.moveTo(0, -y);
context.lineTo(x, y);
context.lineTo(-x, y);
var y = -Math.sqrt(size / (sqrt3 * 3));
context.moveTo(0, y * 2);
context.lineTo(-sqrt3 * y, -y);
context.lineTo(sqrt3 * y, -y);
context.closePath();

@@ -1475,4 +1585,5 @@ }

square,
triangleDown,
triangleUp
star,
triangle,
wye
];

@@ -1507,3 +1618,3 @@

var version = "0.1.0";
var version = "0.2.0";

@@ -1527,3 +1638,3 @@ exports.version = version;

exports.linearClosed = linearClosed;
exports.linear = linear;
exports.linear = curveLinear;
exports.line = line;

@@ -1533,3 +1644,6 @@ exports.monotone = monotone;

exports.pie = pie;
exports.radialArea = radialArea;
exports.radialLine = radialLine;
exports.square = square;
exports.star = star;
exports.stepAfter = stepAfter;

@@ -1540,5 +1654,5 @@ exports.stepBefore = stepBefore;

exports.symbols = symbols;
exports.triangleDown = triangleDown;
exports.triangleUp = triangleUp;
exports.triangle = triangle;
exports.wye = wye;
}));

2

build/d3-shape.min.js

@@ -1,1 +0,1 @@

!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?i(exports,require("d3-path")):"function"==typeof define&&define.amd?define("d3-shape",["exports","d3-path"],i):i(t.d3_shape={},t.d3_path)}(this,function(t,i){"use strict";function n(t){return function(){return t}}function s(t){return t.innerRadius}function h(t){return t.outerRadius}function e(t){return t.startAngle}function _(t){return t.endAngle}function o(t){return t&&t.padAngle}function a(t){return t>=1?rt:-1>=t?-rt:Math.asin(t)}function l(t,i,n,s,h,e,_,o){var a=n-t,l=s-i,r=_-h,c=o-e,u=(r*(i-e)-c*(t-h))/(c*a-r*l);return[t+u*a,i+u*l]}function r(t,i,n,s,h,e,_){var o=t-n,a=i-s,l=(_?e:-e)/Math.sqrt(o*o+a*a),r=l*a,c=-l*o,u=t+r,x=i+c,f=n+r,y=s+c,p=(u+f)/2,d=(x+y)/2,g=f-u,m=y-x,v=g*g+m*m,T=h-e,M=u*y-f*x,b=(0>m?-1:1)*Math.sqrt(Math.max(0,T*T*v-M*M)),w=(M*m-g*b)/v,N=(-M*g-m*b)/v,k=(M*m+g*b)/v,E=(-M*g+m*b)/v,S=w-p,P=N-d,A=k-p,q=E-d;return S*S+P*P>A*A+q*q&&(w=k,N=E),{cx:w,cy:N,x01:-r,y01:-c,x11:w*(h/T-1),y11:N*(h/T-1)}}function c(){function t(){var t,n,s=+c.apply(this,arguments),h=+u.apply(this,arguments),e=y.apply(this,arguments)-rt,_=p.apply(this,arguments)-rt,o=Math.abs(_-e),m=_>e;if(g||(g=t=i.path()),s>h&&(n=h,h=s,s=n),h>0)if(o>=ct)g.moveTo(h*Math.cos(e),h*Math.sin(e)),g.arc(0,0,h,e,_,!m),s>0&&(g.moveTo(s*Math.cos(_),s*Math.sin(_)),g.arc(0,0,s,_,e,m));else{var v=e,T=_,M=e,b=_,w=o,N=o,k=d.apply(this,arguments)/2,E=k>0&&(f?+f.apply(this,arguments):Math.sqrt(s*s+h*h)),S=Math.min(Math.abs(h-s)/2,+x.apply(this,arguments)),P=S,A=S;if(E>0){var q=a(E/s*Math.sin(k)),C=a(E/h*Math.sin(k));(w-=2*q)>0?(q*=m?1:-1,M+=q,b-=q):(w=0,M=b=(e+_)/2),(N-=2*C)>0?(C*=m?1:-1,v+=C,T-=C):(N=0,v=T=(e+_)/2)}var R=h*Math.cos(v),z=h*Math.sin(v),I=s*Math.cos(b),O=s*Math.sin(b);if(S>0){var j=h*Math.cos(T),B=h*Math.sin(T),D=s*Math.cos(M),U=s*Math.sin(M);if(lt>o){var V=w>0?l(R,z,D,U,j,B,I,O):[I,O],F=R-V[0],G=z-V[1],H=j-V[0],J=B-V[1],K=1/Math.sin(Math.acos((F*H+G*J)/(Math.sqrt(F*F+G*G)*Math.sqrt(H*H+J*J)))/2),L=Math.sqrt(V[0]*V[0]+V[1]*V[1]);P=Math.min(S,(s-L)/(K-1)),A=Math.min(S,(h-L)/(K+1))}}if(N>0)if(A>0){var Q=r(D,U,R,z,h,A,m),W=r(j,B,I,O,h,A,m);g.moveTo(Q.cx+Q.x01,Q.cy+Q.y01),S>A?g.arc(Q.cx,Q.cy,A,Math.atan2(Q.y01,Q.x01),Math.atan2(W.y01,W.x01),!m):(g.arc(Q.cx,Q.cy,A,Math.atan2(Q.y01,Q.x01),Math.atan2(Q.y11,Q.x11),!m),g.arc(0,0,h,Math.atan2(Q.cy+Q.y11,Q.cx+Q.x11),Math.atan2(W.cy+W.y11,W.cx+W.x11),!m),g.arc(W.cx,W.cy,A,Math.atan2(W.y11,W.x11),Math.atan2(W.y01,W.x01),!m))}else g.moveTo(R,z),g.arc(0,0,h,v,T,!m);else g.moveTo(R,z);if(s>0&&w>0)if(P>0){var 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vt=1e-6;j.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this,this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){if(t=+t,i=+i,this._point){var n=this._x2-t,s=this._y2-i;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(n*n+s*s,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,i):this._context.moveTo(t,i);break;case 1:this._point=2;break;case 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0:this._point=1,this._x3=t,this._y3=i;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=i);break;case 2:this._point=3,this._x5=t,this._y5=i;break;default:O(this,t,i)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=i}},V.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){if(t=+t,i=+i,this._point){var n=this._x2-t,s=this._y2-i;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(n*n+s*s,this._alpha))}switch(this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 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n=Math.sqrt(i/Mt),s=n*Tt;t.moveTo(0,-n),t.lineTo(s,0),t.lineTo(0,n),t.lineTo(-s,0),t.closePath()}};F.prototype={areaStart:v,areaEnd:v,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,i){t=+t,i=+i,this._point?this._context.lineTo(t,i):(this._point=1,this._context.moveTo(t,i))}},W.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:U(this,this._t0,Q(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){var n=NaN;if(t=+t,i=+i,t!==this._x1||i!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,i):this._context.moveTo(t,i);break;case 1:this._point=2;break;case 2:this._point=3,U(this,Q(this,n=K(this,t,i)),n);break;default:U(this,this._t0,n=K(this,t,i))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=i,this._t0=n}}},Y.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,i=this._y,n=t.length;if(n)if(this._line?this._context.lineTo(t[0],i[0]):this._context.moveTo(t[0],i[0]),2===n)this._context.lineTo(t[1],i[1]);else for(var s=Z(t),e=Z(i),h=0,_=1;n>_;++h,++_)this._context.bezierCurveTo(s[0][h],e[0][h],s[1][h],e[1][h],t[_],i[_]);(this._line||0!==this._line&&1===n)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,i){this._x.push(+t),this._y.push(+i)}},st.prototype={areaStart:function(){this._curve.areaStart()},areaEnd:function(){this._curve.areaEnd()},lineStart:function(){this._curve.lineStart()},lineEnd:function(){this._curve.lineEnd()},point:function(t,i){t-=yt,this._curve.point(i*Math.cos(t),i*Math.sin(t))}};var wt={draw:function(t,i){var n=Math.sqrt(i),s=-n/2;t.rect(s,s,n,n)}},Nt=.8908130915292852,kt=Math.sin(ft/10)/Math.sin(7*ft/10),Et=Math.sin(pt/10)*kt,St=-Math.cos(pt/10)*kt,Pt={draw:function(t,i){var n=Math.sqrt(i*Nt),s=Et*n,e=St*n;t.moveTo(0,-n),t.lineTo(s,e);for(var h=1;5>h;++h){var _=pt*h/5,o=Math.cos(_),a=Math.sin(_);t.lineTo(a*n,-o*n),t.lineTo(o*s-a*e,a*s+o*e)}t.closePath()}};ot.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._y=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){switch(t=+t,i=+i,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,i):this._context.moveTo(t,i);break;case 1:this._point=2;default:this._context.lineTo(t,this._y),this._context.lineTo(t,i)}this._y=i}},rt.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){switch(t=+t,i=+i,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,i):this._context.moveTo(t,i);break;case 1:this._point=2;default:this._context.lineTo(this._x,i),this._context.lineTo(t,i)}this._x=t}},ct.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,i){switch(t=+t,i=+i,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,i):this._context.moveTo(t,i);break;case 1:this._point=2;default:var n=(this._x+t)/2;this._context.lineTo(n,this._y),this._context.lineTo(n,i)}this._x=t,this._y=i}};var At=-.5,qt=Math.sqrt(3)/2,Rt=1/Math.sqrt(12),Ct=3*(Rt/2+1),zt={draw:function(t,i){var n=Math.sqrt(i/Ct),s=n/2,e=n*Rt,h=s,_=n*Rt+n,o=-h,a=_;t.moveTo(s,e),t.lineTo(h,_),t.lineTo(o,a),t.lineTo(At*s-qt*e,qt*s+At*e),t.lineTo(At*h-qt*_,qt*h+At*_),t.lineTo(At*o-qt*a,qt*o+At*a),t.lineTo(At*s+qt*e,At*e-qt*s),t.lineTo(At*h+qt*_,At*_-qt*h),t.lineTo(At*o+qt*a,At*a-qt*o),t.closePath()}},Ot=Math.sqrt(3),jt={draw:function(t,i){var n=-Math.sqrt(i/(3*Ot));t.moveTo(0,2*n),t.lineTo(-Ot*n,-n),t.lineTo(Ot*n,-n),t.closePath()}},Bt=[gt,mt,bt,wt,Pt,jt,zt],It="0.2.0";t.version=It,t.arc=c,t.area=d,t.basisClosed=b,t.basisOpen=N,t.basis=T,t.bundle=E,t.cardinalClosed=R,t.cardinalOpen=z,t.cardinal=A,t.catmullRomClosed=L,t.catmullRomOpen=D,t.catmullRom=B,t.circle=gt,t.cross=mt,t.diamond=bt,t.linearClosed=G,t.linear=f,t.line=H,t.monotone=X,t.natural=$,t.pie=nt,t.radialArea=ht,t.radialLine=_t,t.square=wt,t.star=Pt,t.stepAfter=at,t.stepBefore=lt,t.step=ut,t.symbol=xt,t.symbols=Bt,t.triangle=jt,t.wye=zt});

6

index.js

@@ -22,3 +22,6 @@ export {default as arc} from "./src/arc";

export {default as pie} from "./src/pie";
export {default as radialArea} from "./src/radialArea";
export {default as radialLine} from "./src/radialLine";
export {default as square} from "./src/symbol/square";
export {default as star} from "./src/symbol/star";
export {default as stepAfter} from "./src/curve/stepAfter";

@@ -28,2 +31,3 @@ export {default as stepBefore} from "./src/curve/stepBefore";

export {default as symbol, symbols} from "./src/symbol";
export {triangleDown, triangleUp} from "./src/symbol/triangle";
export {default as triangle} from "./src/symbol/triangle";
export {default as wye} from "./src/symbol/wye";

3

package.json
{
"name": "d3-shape",
"version": "0.1.0",
"version": "0.2.0",
"description": "Graphical primitives for visualization, such as lines and areas.",

@@ -33,2 +33,3 @@ "keywords": [

"devDependencies": {
"d3-polygon": "~0.0.3",
"faucet": "0.0",

@@ -35,0 +36,0 @@ "rollup": "0.20.5",

98

README.md

@@ -408,2 +408,28 @@ # d3-shape

<a name="radialLine" href="#radialLine">#</a> <b>radialLine</b>()
<img alt="Radial Line" width="250" height="250" src="https://raw.githubusercontent.com/d3/d3-shape/master/img/line-radial.png">
Constructs a new radial line generator with the default settings. A radial line generator is equivalent to the standard Cartesian [line generator](#line), except the [x](#line_x) and [y](#line_y) accessors are replaced with [angle](#radialLine_angle) and [radius](#radialLine_radius) accessors. Radial lines are always positioned relative to ⟨0,0⟩; use a transform (see: [SVG](http://www.w3.org/TR/SVG/coords.html#TransformAttribute), [Canvas](http://www.w3.org/TR/2dcontext/#transformations)) to change the origin.
<a name="radialLine_angle" href="#radialLine_angle">#</a> <i>radialLine</i>.<b>angle</b>([<i>angle</i>])
Equivalent to [*line*.x](#line_x), except the accessor returns the angle in radians, with 0 at -*y* (12 o’clock).
<a name="radialLine_radius" href="#radialLine_radius">#</a> <i>radialLine</i>.<b>radius</b>([<i>radius</i>])
Equivalent to [*line*.y](#line_y), except the accessor returns the radius: the distance from the origin ⟨0,0⟩.
<a name="radialLine_defined" href="#radialLine_defined">#</a> <i>radialLine</i>.<b>defined</b>([<i>defined</i>])
Equivalent to [*line*.defined](#line_defined).
<a name="radialLine_curve" href="#radialLine_curve">#</a> <i>radialLine</i>.<b>curve</b>([<i>curve</i>[, <i>parameters…</i>]])
Equivalent to [*line*.curve](#line_curve). Note that the [monotone](#monotone) curve is not recommended for radial lines because it assumes that the data is monotonic in *x*, which is typically untrue of radial lines.
<a name="radialLine_context" href="#radialLine_context">#</a> <i>radialLine</i>.<b>context</b>([<i>context</i>])
Equivalent to [*line*.context](#line_context).
### Areas

@@ -510,4 +536,2 @@

Unlike [*line*.curve](#line_curve), this method **requires** that the curve implement [*curve*.areaStart](#curve_areaStart) and [*curve*.areaEnd](#curve_areaEnd); you cannot use closed curves such as [cardinalClosed](#cardinalClosed) with an area generator. Instead, a closed shape is produced by first rendering the topline and then rendering the baseline.
<a name="area_context" href="#area_context">#</a> <i>area</i>.<b>context</b>([<i>context</i>])

@@ -517,2 +541,44 @@

<a name="radialArea" href="#radialArea">#</a> <b>radialArea</b>()
<img alt="Radial Area" width="250" height="250" src="https://raw.githubusercontent.com/d3/d3-shape/master/img/area-radial.png">
Constructs a new radial area generator with the default settings. A radial area generator is equivalent to the standard Cartesian [area generator](#area), except the [x](#area_x) and [y](#area_y) accessors are replaced with [angle](#radialArea_angle) and [radius](#radialArea_radius) accessors. Radial areas are always positioned relative to ⟨0,0⟩; use a transform (see: [SVG](http://www.w3.org/TR/SVG/coords.html#TransformAttribute), [Canvas](http://www.w3.org/TR/2dcontext/#transformations)) to change the origin.
<a name="radialArea_angle" href="#radialArea_angle">#</a> <i>radialArea</i>.<b>angle</b>([<i>angle</i>])
Equivalent to [*area*.x](#area_x), except the accessor returns the angle in radians, with 0 at -*y* (12 o’clock).
<a name="radialArea_startAngle" href="#radialArea_startAngle">#</a> <i>radialArea</i>.<b>startAngle</b>([<i>angle</i>])
Equivalent to [*area*.x0](#area_x0), except the accessor returns the angle in radians, with 0 at -*y* (12 o’clock). Note: typically [angle](#radialArea_angle) is used instead of setting separate start and end angles.
<a name="radialArea_endAngle" href="#radialArea_endAngle">#</a> <i>radialArea</i>.<b>endAngle</b>([<i>angle</i>])
Equivalent to [*area*.x1](#area_x1), except the accessor returns the angle in radians, with 0 at -*y* (12 o’clock). Note: typically [angle](#radialArea_angle) is used instead of setting separate start and end angles.
<a name="radialArea_radius" href="#radialArea_radius">#</a> <i>radialArea</i>.<b>radius</b>([<i>radius</i>])
Equivalent to [*area*.y](#area_y), except the accessor returns the radius: the distance from the origin ⟨0,0⟩.
<a name="radialArea_innerRadius" href="#radialArea_innerRadius">#</a> <i>radialArea</i>.<b>innerRadius</b>([<i>radius</i>])
Equivalent to [*area*.y0](#area_y0), except the accessor returns the radius: the distance from the origin ⟨0,0⟩.
<a name="radialArea_outerRadius" href="#radialArea_outerRadius">#</a> <i>radialArea</i>.<b>outerRadius</b>([<i>radius</i>])
Equivalent to [*area*.y1](#area_y1), except the accessor returns the radius: the distance from the origin ⟨0,0⟩.
<a name="radialArea_defined" href="#radialArea_defined">#</a> <i>radialArea</i>.<b>defined</b>([<i>defined</i>])
Equivalent to [*area*.defined](#area_defined).
<a name="radialArea_curve" href="#radialArea_curve">#</a> <i>radialArea</i>.<b>curve</b>([<i>curve</i>[, <i>parameters…</i>]])
Equivalent to [*area*.curve](#area_curve). Note that the [monotone](#monotone) curve is not recommended for radial areas because it assumes that the data is monotonic in *x*, which is typically untrue of radial areas.
<a name="radialArea_context" href="#radialArea_context">#</a> <i>radialArea</i>.<b>context</b>([<i>context</i>])
Equivalent to [*line*.context](#line_context).
### Curves

@@ -632,7 +698,7 @@

Indicates the start of a new area segment. Each area segment consists of exactly two [line segments](#curve_lineStart): the topline, followed by the baseline, with the baseline points in reverse order. Note: this method need not be implemented by closed curves, such as <a href="#linearClosed">linearClosed</a>.
Indicates the start of a new area segment. Each area segment consists of exactly two [line segments](#curve_lineStart): the topline, followed by the baseline, with the baseline points in reverse order.
<a name="curve_areaEnd" href="#curve_areaEnd">#</a> <i>curve</i>.<b>areaEnd</b>()
Indicates the end of the current area segment. Note: this method need not be implemented by closed curves, such as <a href="#linearClosed">linearClosed</a>.
Indicates the end of the current area segment.

@@ -653,2 +719,4 @@ <a name="curve_lineStart" href="#curve_lineStart">#</a> <i>curve</i>.<b>lineStart</b>()

<a href="#circle"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/circle.png" width="100" height="100"></a><a href="#cross"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/cross.png" width="100" height="100"></a><a href="#diamond"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/diamond.png" width="100" height="100"></a><a href="#square"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/square.png" width="100" height="100"></a><a href="#star"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/star.png" width="100" height="100"></a><a href="#triangle"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/triangle.png" width="100" height="100"><a href="#wye"><img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/wye.png" width="100" height="100"></a>
Symbols provide a categorical shape encoding as is commonly used in scatterplots. Symbols are always centered at ⟨0,0⟩; use a transform (see: [SVG](http://www.w3.org/TR/SVG/coords.html#TransformAttribute), [Canvas](http://www.w3.org/TR/2dcontext/#transformations)) to move the arc to a different position.

@@ -686,8 +754,6 @@

An array containing the set of all built-in symbol types: [circle](#circle), [cross](#cross), [diamond](#diamond), [square](#square), [downwards triangle](#triangleDown), and [upwards triangle](#triangleUp). Useful for constructing the range of an [ordinal scale](https://github.com/d3/d3-scale#ordinal-scales) should you wish to use a shape encoding for categorical data.
An array containing the set of all built-in symbol types: [circle](#circle), [cross](#cross), [diamond](#diamond), [square](#square), [star](#star), [triangle](#triangle), and [wye](#wye). Useful for constructing the range of an [ordinal scale](https://github.com/d3/d3-scale#ordinal-scales) should you wish to use a shape encoding for categorical data.
<a name="circle" href="#circle">#</a> <b>circle</b>
<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/circle.png" width="100" height="100">
A circle.

@@ -697,4 +763,2 @@

<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/cross.png" width="100" height="100">
A Greek cross with arms of equal length.

@@ -704,4 +768,2 @@

<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/diamond.png" width="100" height="100">
A rhombus.

@@ -711,17 +773,15 @@

<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/square.png" width="100" height="100">
A square.
<a name="triangleDown" href="#triangleDown">#</a> <b>triangleDown</b>
<a name="star" href="#star">#</a> <b>star</b>
<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/triangleDown.png" width="100" height="100">
A pentagonal star (pentagram).
A down-pointing triangle.
<a name="triangle" href="#triangle">#</a> <b>triangle</b>
<a name="triangleUp" href="#triangleUp">#</a> <b>triangleUp</b>
An up-pointing triangle.
<img src="https://raw.githubusercontent.com/d3/d3-shape/master/img/triangleUp.png" width="100" height="100">
<a name="wye" href="#wye">#</a> <b>wye</b>
An up-pointing triangle.
A Y-shape.

@@ -728,0 +788,0 @@ ### Custom Symbol Types

11

src/arc.js
import {path} from "d3-path";
import constant from "./constant";
import {pi, halfPi, tau} from "./math";
var pi = Math.PI,
piHalf = pi / 2,
tau = 2 * pi;
function arcInnerRadius(d) {

@@ -29,3 +26,3 @@ return d.innerRadius;

function asin(x) {
return x >= 1 ? piHalf : x <= -1 ? -piHalf : Math.asin(x);
return x >= 1 ? halfPi : x <= -1 ? -halfPi : Math.asin(x);
}

@@ -99,4 +96,4 @@

r1 = +outerRadius.apply(this, arguments),
a0 = startAngle.apply(this, arguments) - piHalf,
a1 = endAngle.apply(this, arguments) - piHalf,
a0 = startAngle.apply(this, arguments) - halfPi,
a1 = endAngle.apply(this, arguments) - halfPi,
da = Math.abs(a1 - a0),

@@ -103,0 +100,0 @@ cw = a1 > a0;

7

src/area.js

@@ -56,3 +56,3 @@ import {path} from "d3-path";

area.x = function(_) {
return arguments.length ? area.x0(_).x1(null) : x0;
return arguments.length ? (x0 = typeof _ === "function" ? _ : constant(+_), x1 = null, area) : x0;
};

@@ -69,3 +69,3 @@

area.y = function(_) {
return arguments.length ? area.y0(_).y1(null) : y0;
return arguments.length ? (y0 = typeof _ === "function" ? _ : constant(+_), y1 = null, area) : y0;
};

@@ -86,4 +86,3 @@

area.curve = function(_) {
var n = arguments.length;
return n ? (curve = n > 1 ? curveBind(_, arguments) : _, context != null && (output = curve(context)), area) : curve;
return arguments.length ? (curve = curveBind(_, arguments), context != null && (output = curve(context)), area) : curve;
};

@@ -90,0 +89,0 @@

8

src/curve/basis.js

@@ -12,6 +12,2 @@ export function point(that, x, y) {

function basis(context) {
return new Basis(context);
}
function Basis(context) {

@@ -54,2 +50,4 @@ this._context = context;

export default basis;
export default function(context) {
return new Basis(context);
};

11

src/curve/basisClosed.js

@@ -0,7 +1,4 @@

import noop from "../noop";
import {point} from "./basis";
function basisClosed(context) {
return new BasisClosed(context);
}
function BasisClosed(context) {

@@ -12,2 +9,4 @@ this._context = context;

BasisClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -52,2 +51,4 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =

export default basisClosed;
export default function(context) {
return new BasisClosed(context);
};

8

src/curve/basisOpen.js
import {point} from "./basis";
function basisOpen(context) {
return new BasisOpen(context);
}
function BasisOpen(context) {

@@ -41,2 +37,4 @@ this._context = context;

export default basisOpen;
export default function(context) {
return new BasisOpen(context);
};

5

src/curve/bind.js
var slice = Array.prototype.slice;
export default function(interpolate, args) {
export default function(curve, args) {
if (args.length < 2) return curve;
args = slice.call(args);

@@ -8,4 +9,4 @@ args[0] = null;

args[0] = context;
return interpolate.apply(null, args);
return curve.apply(null, args);
};
};

12

src/curve/bundle.js
import basis from "./basis";
function bundle(context, beta) {
return beta == null ? new Bundle(context, 0.85)
: (beta = +beta) === 1 ? basis(context)
: new Bundle(context, beta);
}
function Bundle(context, beta) {

@@ -51,2 +45,6 @@ this._basis = basis(context);

export default bundle;
export default function(context, beta) {
return beta == null ? new Bundle(context, 0.85)
: (beta = +beta) === 1 ? basis(context)
: new Bundle(context, beta);
};

8

src/curve/cardinal.js

@@ -12,6 +12,2 @@ export function point(that, x, y) {

function cardinal(context, tension) {
return new Cardinal(context, (tension == null ? 1 : 1 - tension) / 6);
}
function Cardinal(context, k) {

@@ -55,2 +51,4 @@ this._context = context;

export default cardinal;
export default function(context, tension) {
return new Cardinal(context, (tension == null ? 1 : 1 - tension) / 6);
};

11

src/curve/cardinalClosed.js

@@ -0,7 +1,4 @@

import noop from "../noop";
import {point} from "./cardinal";
function cardinalClosed(context, tension) {
return new CardinalClosed(context, (tension == null ? 1 : 1 - tension) / 6);
}
function CardinalClosed(context, k) {

@@ -13,2 +10,4 @@ this._context = context;

CardinalClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -52,2 +51,4 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =

export default cardinalClosed;
export default function(context, tension) {
return new CardinalClosed(context, (tension == null ? 1 : 1 - tension) / 6);
};

8

src/curve/cardinalOpen.js
import {point} from "./cardinal";
function cardinalOpen(context, tension) {
return new CardinalOpen(context, (tension == null ? 1 : 1 - tension) / 6);
}
function CardinalOpen(context, k) {

@@ -42,2 +38,4 @@ this._context = context;

export default cardinalOpen;
export default function(context, tension) {
return new CardinalOpen(context, (tension == null ? 1 : 1 - tension) / 6);
};

12

src/curve/catmullRom.js

@@ -28,8 +28,2 @@ import cardinal from "./cardinal";

function catmullRom(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRom(context, alpha)
: cardinal(context, 0);
}
function CatmullRom(context, alpha) {

@@ -85,2 +79,6 @@ this._context = context;

export default catmullRom;
export default function(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRom(context, alpha)
: cardinal(context, 0);
};

15

src/curve/catmullRomClosed.js
import cardinalClosed from "./cardinalClosed";
import noop from "../noop";
import {point} from "./catmullRom";
function catmullRomClosed(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomClosed(context, alpha)
: cardinalClosed(context, 0);
}
function CatmullRomClosed(context, alpha) {

@@ -16,2 +11,4 @@ this._context = context;

CatmullRomClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -67,2 +64,6 @@ this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =

export default catmullRomClosed;
export default function(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomClosed(context, alpha)
: cardinalClosed(context, 0);
};

12

src/curve/catmullRomOpen.js
import cardinalOpen from "./cardinalOpen";
import {point} from "./catmullRom";
function catmullRomOpen(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomOpen(context, alpha)
: cardinalOpen(context, 0);
}
function CatmullRomOpen(context, alpha) {

@@ -57,2 +51,6 @@ this._context = context;

export default catmullRomOpen;
export default function(context, alpha) {
return (alpha = alpha == null ? 0.5 : +alpha)
? new CatmullRomOpen(context, alpha)
: cardinalOpen(context, 0);
};

8

src/curve/linear.js

@@ -1,5 +0,1 @@

function linear(context) {
return new Linear(context);
}
function Linear(context) {

@@ -33,2 +29,4 @@ this._context = context;

export default linear;
export default function(context) {
return new Linear(context);
};

10

src/curve/linearClosed.js

@@ -1,4 +0,2 @@

function linearClosed(context) {
return new LinearClosed(context);
}
import noop from "../noop";

@@ -10,2 +8,4 @@ function LinearClosed(context) {

LinearClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {

@@ -24,2 +24,4 @@ this._point = 0;

export default linearClosed;
export default function(context) {
return new LinearClosed(context);
};

8

src/curve/monotone.js

@@ -36,6 +36,2 @@ function sign(x) {

function monotone(context) {
return new Monotone(context);
}
function Monotone(context) {

@@ -84,2 +80,4 @@ this._context = context;

export default monotone;
export default function(context) {
return new Monotone(context);
};

8

src/curve/natural.js

@@ -1,5 +0,1 @@

function natural(context) {
return new Natural(context);
}
function Natural(context) {

@@ -67,2 +63,4 @@ this._context = context;

export default natural;
export default function(context) {
return new Natural(context);
};

8

src/curve/step.js

@@ -1,5 +0,1 @@

function step(context) {
return new Step(context);
}
function Step(context) {

@@ -41,2 +37,4 @@ this._context = context;

export default step;
export default function(context) {
return new Step(context);
};

8

src/curve/stepAfter.js

@@ -1,5 +0,1 @@

function stepAfter(context) {
return new StepAfter(context);
}
function StepAfter(context) {

@@ -39,2 +35,4 @@ this._context = context;

export default stepAfter;
export default function(context) {
return new StepAfter(context);
};

8

src/curve/stepBefore.js

@@ -1,5 +0,1 @@

function stepBefore(context) {
return new StepBefore(context);
}
function StepBefore(context) {

@@ -39,2 +35,4 @@ this._context = context;

export default stepBefore;
export default function(context) {
return new StepBefore(context);
};

3

src/line.js

@@ -48,4 +48,3 @@ import {path} from "d3-path";

line.curve = function(_) {
var n = arguments.length;
return n ? (curve = n > 1 ? curveBind(_, arguments) : _, context != null && (output = curve(context)), line) : curve;
return arguments.length ? (curve = curveBind(_, arguments), context != null && (output = curve(context)), line) : curve;
};

@@ -52,0 +51,0 @@

13

src/pie.js
import constant from "./constant";
import descending from "./descending";
import identity from "./identity";
import {tau} from "./math";
var tau = 2 * Math.PI;
function identity(d) {
return d;
}
function descending(a, b) {
return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
}
export default function() {

@@ -14,0 +7,0 @@ var value = identity,

9

src/symbol.js

@@ -5,4 +5,6 @@ import {path} from "d3-path";

import diamond from "./symbol/diamond";
import star from "./symbol/star";
import square from "./symbol/square";
import {triangleDown, triangleUp} from "./symbol/triangle";
import triangle from "./symbol/triangle";
import wye from "./symbol/wye";
import constant from "./constant";

@@ -15,4 +17,5 @@

square,
triangleDown,
triangleUp
star,
triangle,
wye
];

@@ -19,0 +22,0 @@

6

src/symbol/circle.js

@@ -0,7 +1,9 @@

import {pi, tau} from "../math";
export default {
draw: function(context, size) {
var r = Math.sqrt(size / Math.PI);
var r = Math.sqrt(size / pi);
context.moveTo(r, 0);
context.arc(0, 0, r, 0, 2 * Math.PI);
context.arc(0, 0, r, 0, tau);
}
};

22

src/symbol/triangle.js
var sqrt3 = Math.sqrt(3);
export var triangleDown = {
export default {
draw: function(context, size) {
var x = Math.sqrt(size / sqrt3),
y = x * sqrt3 / 2;
context.moveTo(0, y);
context.lineTo(x, -y);
context.lineTo(-x, -y);
var y = -Math.sqrt(size / (sqrt3 * 3));
context.moveTo(0, y * 2);
context.lineTo(-sqrt3 * y, -y);
context.lineTo(sqrt3 * y, -y);
context.closePath();
}
};
export var triangleUp = {
draw: function(context, size) {
var x = Math.sqrt(size / sqrt3),
y = x * sqrt3 / 2;
context.moveTo(0, -y);
context.lineTo(x, y);
context.lineTo(-x, y);
context.closePath();
}
};
img/triangleDown.png
img/triangleUp.png
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