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9a14526 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | import "../core/array";
import "../core/identity";
import "../math/trigonometry";
import "../scale/linear";
import "../scale/scale";
import "../selection/selection";
import "../transition/transition";
import "svg";
d3.svg.axis = function() {
var scale = d3.scale.linear(),
orient = d3_svg_axisDefaultOrient,
innerTickSize = 6,
outerTickSize = 6,
tickPadding = 3,
tickArguments_ = [10],
tickValues = null,
tickFormat_;
function axis(g) {
g.each(function() {
var g = d3.select(this);
// Stash a snapshot of the new scale, and retrieve the old snapshot.
var scale0 = this.__chart__ || scale,
scale1 = this.__chart__ = scale.copy();
// Ticks, or domain values for ordinal scales.
var ticks = tickValues == null ? (scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain()) : tickValues,
tickFormat = tickFormat_ == null ? (scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity) : tickFormat_,
tick = g.selectAll(".tick").data(ticks, scale1),
tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε),
tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(),
tickUpdate = d3.transition(tick.order()).style("opacity", 1),
tickSpacing = Math.max(innerTickSize, 0) + tickPadding,
tickTransform;
// Domain.
var range = d3_scaleRange(scale1),
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(tickFormat),
textEnter = tickEnter.select("text"),
textUpdate = tickUpdate.select("text"),
sign = orient === "top" || orient === "left" ? -1 : 1,
x1, x2, y1, y2;
if (orient === "bottom" || orient === "top") {
tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2";
text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle");
pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize);
} else {
tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2";
text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start");
pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize);
}
lineEnter.attr(y2, sign * innerTickSize);
textEnter.attr(y1, sign * tickSpacing);
lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);
textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);
// If either the new or old scale is ordinal,
// entering ticks are undefined in the old scale,
// and so can fade-in in the new scale’s position.
// Exiting ticks are likewise undefined in the new scale,
// and so can fade-out in the old scale’s position.
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, scale0);
}
tickEnter.call(tickTransform, scale0, scale1);
tickUpdate.call(tickTransform, scale1, 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 d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
return axis;
};
axis.ticks = function() {
if (!arguments.length) return tickArguments_;
tickArguments_ = d3_array(arguments);
return axis;
};
axis.tickValues = function(x) {
if (!arguments.length) return tickValues;
tickValues = x;
return axis;
};
axis.tickFormat = function(x) {
if (!arguments.length) return tickFormat_;
tickFormat_ = x;
return axis;
};
axis.tickSize = function(x) {
var n = arguments.length;
if (!n) return innerTickSize;
innerTickSize = +x;
outerTickSize = +arguments[n - 1];
return axis;
};
axis.innerTickSize = function(x) {
if (!arguments.length) return innerTickSize;
innerTickSize = +x;
return axis;
};
axis.outerTickSize = function(x) {
if (!arguments.length) return outerTickSize;
outerTickSize = +x;
return axis;
};
axis.tickPadding = function(x) {
if (!arguments.length) return tickPadding;
tickPadding = +x;
return axis;
};
axis.tickSubdivide = function() {
return arguments.length && axis;
};
return axis;
};
var d3_svg_axisDefaultOrient = "bottom",
d3_svg_axisOrients = {top: 1, right: 1, bottom: 1, left: 1};
function d3_svg_axisX(selection, x0, x1) {
selection.attr("transform", function(d) { var v0 = x0(d); return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)"; });
}
function d3_svg_axisY(selection, y0, y1) {
selection.attr("transform", function(d) { var v0 = y0(d); return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")"; });
}
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