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Introduce c3_axis - #204

pull/213/merge
Masayuki Tanaka 11 years ago
parent
c2f8cce415
commit
aef3c573ac
1 changed files with 180 additions and 181 deletions
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  1. 361
      c3.js

361
c3.js
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@ -684,7 +684,7 @@
//-- Axes --//
function getXAxis(scale, orient, tickFormat, tickValues) {
var axis = (isCategorized ? categoryAxis() : d3.svg.axis()).scale(scale).orient(orient);
var axis = c3_axis(isCategorized).scale(scale).orient(orient);
// Set tick
axis.tickFormat(tickFormat).tickValues(tickValues);
@ -907,186 +907,6 @@
.text(textForY2AxisLabel);
}
function categoryAxis() {
var scale = d3.scale.linear(), orient = "bottom";
var tickMajorSize = 6, /*tickMinorSize = 6,*/ tickEndSize = 6, tickPadding = 3, tickCentered = false, tickTextNum = 10, tickOffset = 0, tickFormat = null, tickCulling = true;
var categories = [];
function axisX(selection, x) {
selection.attr("transform", function (d) {
return "translate(" + (x(d) + tickOffset) + ", 0)";
});
}
function axisY(selection, y) {
selection.attr("transform", function (d) {
return "translate(0," + y(d) + ")";
});
}
function scaleExtent(domain) {
var start = domain[0], stop = domain[domain.length - 1];
return start < stop ? [ start, stop ] : [ stop, start ];
}
function generateTicks(domain) {
var ticks = [];
for (var i = Math.ceil(domain[0]); i < domain[1]; i++) {
ticks.push(i);
}
if (ticks.length > 0 && ticks[0] > 0) {
ticks.unshift(ticks[0] - (ticks[1] - ticks[0]));
}
return ticks;
}
function category(i) {
return i < categories.length ? categories[i] : i;
}
function formattedCategory(i) {
var c = category(i);
return tickFormat ? tickFormat(c) : c;
}
function copyScale() {
var newScale = scale.copy(), domain = scale.domain();
newScale.domain([domain[0], domain[1] - 1]);
return newScale;
}
function axis(g) {
g.each(function () {
var g = d3.select(this);
var scale1 = copyScale(), scale0 = this.__chart__ || scale1;
var tick = g.selectAll(".tick.major").data(generateTicks(scale1.domain()), String),
tickEnter = tick.enter().insert("g", "path").attr("class", "tick major").style("opacity", 1e-6),
tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(),
tickUpdate = d3.transition(tick).style("opacity", 1),
tickTransform,
tickX;
var range = scale.rangeExtent ? scale.rangeExtent() : scaleExtent(scale.range());
var path = g.selectAll(".domain").data([ 0 ]), pathUpdate;
var lineEnter, lineUpdate, text, textEnter, textUpdate;
path.enter().append("path").attr("class", "domain");
pathUpdate = d3.transition(path);
tickEnter.append("line");
tickEnter.append("text");
lineEnter = tickEnter.select("line");
lineUpdate = tickUpdate.select("line");
text = tick.select("text");
textEnter = tickEnter.select("text");
textUpdate = tickUpdate.select("text");
tickOffset = (scale1(1) - scale1(0)) / 2;
tickX = tickCentered ? 0 : tickOffset;
this.__chart__ = scale1;
switch (orient) {
case "bottom":
{
tickTransform = axisX;
lineEnter.attr("y2", Math.ceil(tickMajorSize));
textEnter.attr("y", Math.ceil(Math.max(tickMajorSize, 0) + tickPadding));
lineUpdate.attr("x1", Math.ceil(tickX)).attr("x2", Math.ceil(tickX)).attr("y2", Math.ceil(tickMajorSize));
textUpdate.attr("x", 0).attr("y", Math.ceil(Math.max(tickMajorSize, 0) + tickPadding));
text.attr("dy", ".71em").style("text-anchor", "middle");
text.text(formattedCategory);
pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
break;
}
/* TODO: implement
case "top":
{
tickTransform = axisX
lineEnter.attr("y2", -tickMajorSize)
textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding))
lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize)
textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding))
text.attr("dy", "0em").style("text-anchor", "middle")
pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize)
break
}
*/
case "left":
{
tickTransform = axisY;
lineEnter.attr("x2", -(Math.ceil(tickMajorSize)));
textEnter.attr("x", -(Math.ceil(Math.max(tickMajorSize, 0) + tickPadding)));
lineUpdate.attr("x2", -(Math.ceil(tickMajorSize))).attr("y2", 0);
textUpdate.attr("x", -(Math.ceil(Math.max(tickMajorSize, 0) + tickPadding))).attr("y", Math.ceil(tickOffset));
text.attr("dy", ".32em").style("text-anchor", "end");
text.text(formattedCategory);
pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
break;
}
/*
case "right":
{
tickTransform = axisY
lineEnter.attr("x2", tickMajorSize)
textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding)
lineUpdate.attr("x2", tickMajorSize).attr("y2", 0)
textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0)
text.attr("dy", ".32em").style("text-anchor", "start")
pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize)
break
}
*/
}
if (scale.ticks) {
tickEnter.call(tickTransform, scale0);
tickUpdate.call(tickTransform, scale1);
tickExit.call(tickTransform, scale1);
} else {
var dx = scale1.rangeBand() / 2, x = function (d) {
return scale1(d) + dx;
};
tickEnter.call(tickTransform, x);
tickUpdate.call(tickTransform, x);
}
});
}
axis.scale = function (x) {
if (!arguments.length) { return scale; }
scale = x;
return axis;
};
axis.orient = function (x) {
if (!arguments.length) { return orient; }
orient = x in {top: 1, right: 1, bottom: 1, left: 1} ? x + "" : "bottom";
return axis;
};
axis.categories = function (x) {
if (!arguments.length) { return categories; }
categories = x;
return axis;
};
axis.tickCentered = function (x) {
if (!arguments.length) { return tickCentered; }
tickCentered = x;
return axis;
};
axis.tickFormat = function (format) {
if (!arguments.length) { return tickFormat; }
tickFormat = format;
return axis;
};
axis.tickOffset = function () {
return tickOffset;
};
axis.ticks = function (n) {
if (!arguments.length) { return tickTextNum; }
tickTextNum = n;
return axis;
};
axis.tickCulling = function (culling) {
if (!arguments.length) { return tickCulling; }
tickCulling = culling;
return axis;
};
axis.tickValues = function () {
// TODO: do something
};
return axis;
}
//-- Arc --//
pie = d3.layout.pie().value(function (d) {
@ -4655,4 +4475,183 @@
}
// TODO: module.exports
function c3_axis(isCategory) {
var scale = d3.scale.linear(), orient = "bottom", innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickValues = null, tickFormat;
var tickOffset = 0, tickTextNum = 10, tickCulling = true;
var categories = [], tickCentered;
function axisX(selection, x) {
selection.attr("transform", function (d) {
return "translate(" + (x(d) + tickOffset) + ", 0)";
});
}
function axisY(selection, y) {
selection.attr("transform", function (d) {
return "translate(0," + y(d) + ")";
});
}
function scaleExtent(domain) {
var start = domain[0], stop = domain[domain.length - 1];
return start < stop ? [ start, stop ] : [ stop, start ];
}
function generateTicks(domain) {
var i, ticks = [];
for (i = Math.ceil(domain[0]); i < domain[1]; i++) {
ticks.push(i);
}
if (ticks.length > 0 && ticks[0] > 0) {
ticks.unshift(ticks[0] - (ticks[1] - ticks[0]));
}
return ticks;
}
function copyScale() {
var newScale = scale.copy(), domain;
if (isCategory) {
domain = scale.domain();
newScale.domain([domain[0], domain[1] - 1]);
}
return newScale;
}
function textFormatted(i) {
var v = isCategory && i < categories.length ? categories[i] : i;
return tickFormat ? tickFormat(v) : v;
}
function axis(g) {
g.each(function() {
var g = d3.select(this);
var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = copyScale();
var ticks = tickValues ? tickValues : generateTicks(scale1.domain()),
tick = g.selectAll(".tick").data(ticks, scale1),
tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", 1e-6),
tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(),
tickUpdate = d3.transition(tick).style("opacity", 1),
tickTransform, tickX;
var range = scale.rangeExtent ? scale.rangeExtent() : scaleExtent(scale.range()),
path = g.selectAll(".domain").data([ 0 ]),
pathUpdate = (path.enter().append("path").attr("class", "domain"), d3.transition(path));
tickEnter.append("line");
tickEnter.append("text");
var lineEnter = tickEnter.select("line"),
lineUpdate = tickUpdate.select("line"),
text = tick.select("text").text(textFormatted),
textEnter = tickEnter.select("text"),
textUpdate = tickUpdate.select("text");
if (isCategory) {
tickOffset = (scale1(1) - scale1(0)) / 2;
tickX = tickCentered ? 0 : tickOffset;
} else {
tickOffset = tickX = 0;
}
switch (orient) {
case "bottom":
{
tickTransform = axisX;
lineEnter.attr("y2", innerTickSize);
textEnter.attr("y", Math.max(innerTickSize, 0) + tickPadding);
lineUpdate.attr("x1", tickX).attr("x2", tickX).attr("y2", innerTickSize);
textUpdate.attr("x", 0).attr("y", Math.max(innerTickSize, 0) + tickPadding);
text.attr("dy", ".71em").style("text-anchor", "middle");
pathUpdate.attr("d", "M" + range[0] + "," + outerTickSize + "V0H" + range[1] + "V" + outerTickSize);
break;
}
case "top":
{
tickTransform = axisX;
lineEnter.attr("y2", -innerTickSize);
textEnter.attr("y", -(Math.max(innerTickSize, 0) + tickPadding));
lineUpdate.attr("x2", 0).attr("y2", -innerTickSize);
textUpdate.attr("x", 0).attr("y", -(Math.max(innerTickSize, 0) + tickPadding));
text.attr("dy", "0em").style("text-anchor", "middle");
pathUpdate.attr("d", "M" + range[0] + "," + -outerTickSize + "V0H" + range[1] + "V" + -outerTickSize);
break;
}
case "left":
{
tickTransform = axisY;
lineEnter.attr("x2", -innerTickSize);
textEnter.attr("x", -(Math.max(innerTickSize, 0) + tickPadding));
lineUpdate.attr("x2", -innerTickSize).attr("y2", 0);
textUpdate.attr("x", -(Math.max(innerTickSize, 0) + tickPadding)).attr("y", tickOffset);
text.attr("dy", ".32em").style("text-anchor", "end");
pathUpdate.attr("d", "M" + -outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + -outerTickSize);
break;
}
case "right":
{
tickTransform = axisY;
lineEnter.attr("x2", innerTickSize);
textEnter.attr("x", Math.max(innerTickSize, 0) + tickPadding);
lineUpdate.attr("x2", innerTickSize).attr("y2", 0);
textUpdate.attr("x", Math.max(innerTickSize, 0) + tickPadding).attr("y", 0);
text.attr("dy", ".32em").style("text-anchor", "start");
pathUpdate.attr("d", "M" + outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + outerTickSize);
break;
}
}
if (scale1.rangeBand) {
var x = scale1, dx = x.rangeBand() / 2;
scale0 = scale1 = function(d) {
return x(d) + dx;
};
} else if (scale0.rangeBand) {
scale0 = scale1;
} else {
tickExit.call(tickTransform, scale1);
}
tickEnter.call(tickTransform, scale0);
tickUpdate.call(tickTransform, scale1);
});
}
axis.scale = function(x) {
if (!arguments.length) return scale;
scale = x;
return axis;
};
axis.orient = function (x) {
if (!arguments.length) { return orient; }
orient = x in {top: 1, right: 1, bottom: 1, left: 1} ? x + "" : "bottom";
return axis;
};
axis.tickFormat = function (format) {
if (!arguments.length) { return tickFormat; }
tickFormat = format;
return axis;
};
axis.tickCentered = function (isCentered) {
if (!arguments.length) { return tickCentered; }
tickCentered = isCentered;
return axis;
};
axis.tickOffset = function () {
return tickOffset;
};
axis.ticks = function (n) {
if (!arguments.length) { return tickTextNum; }
tickTextNum = n;
return axis;
};
axis.tickCulling = function (culling) {
if (!arguments.length) { return tickCulling; }
tickCulling = culling;
return axis;
};
axis.tickValues = function(x) {
if (!arguments.length) { return tickValues; }
tickValues = x;
return axis;
};
axis.categories = function (x) {
if (!arguments.length) { return categories; }
categories = x;
return axis;
};
return axis;
}
})(window);

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