滑块上的约束jquery+在页面加载时调用javascript函数来调用javascript函数
Constraints on slider jquery + callng javascript function at page loadto call javascript function
我有一些代码，它绘制了某个数学函数，并使用户能够实时更改函数的某些特定参数，从而使用户能够看到函数的变化。
我有两个问题需要帮助。
i） 我使用的是jquery UI库，它提供了一个滑块。我使用这个滑块来允许用户在特定范围内更改特定参数。通常情况下，参数没有约束。然而，在这种情况下，我需要以下等式保持min<=mode<=max。目前，我已经用滑块的slide事件中的一些代码解决了这个问题。代码基本上检查相等性，如果违反了，则将参数设置为其可能的最小值或最大值。
但是，从视觉上看，可以进一步滑动。但是，在用户释放滑块I之后，change事件已被调用，我将参数更改为其可能的最小值或最大值。是否可以确保滑块在视觉上也不会违反约束？
ii）当我加载页面时，页面上还没有可见的绘图。这是因为当页面加载时，我似乎无法调用函数redraw()，请参阅底部的代码。为什么没有调用redraw()？
Snippet，请参阅下文或http://jsfiddle.net/qraLt1p3/11/
<!DOCTYPE html>
<html lang="en">
<head>
<title>MPERT</title>
<meta charset="utf-8">
<script src="//d3js.org/d3.v3.min.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<style type="text/css">
svg {
font: 10px sans-serif;
shape-rendering: crispEdges;
}
rect {
fill: transparent;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
clip-path: url(#clip);
}
.grid .tick {
stroke: lightgrey;
opacity: 0.7;
}
.grid path {
stroke-width: 0;
}
#slider-pertmin, #slider-pertmode, #slider-pertmax {
float: right;
width: 120px;
margin: 7px;
}
.ui-slider-horizontal {
height: 8px;
width: 200px;
}
.ui-slider .ui-slider-handle {
height: 15px;
width: 5px;
padding-left: 5px;
}
#plot {
background-color:#f9f9f9;
border:solid 1px #ddd;
padding:10px;
width:250px;
}
#plotOptions {
background-color:#f9f9f9;
border:solid 1px #ddd;
padding:10px;
}
.block label {
display: inline-block;
width: 60px;
text-align: right;
}
</style>
<script type="text/javascript">
// Log-gamma function
gammaln = function gammaln(x)
{
var cof = [ 76.18009172947146, -86.50532032941677, 24.01409824083091,
-1.231739572450155, 0.1208650973866179e-2, -0.5395239384953e-5];
var j = 0;
var ser = 1.000000000190015;
var xx, y, tmp;
tmp = (y = xx = x) + 5.5;
tmp -= (xx + 0.5) * Math.log(tmp);
for (; j < 6; j++)
ser += cof[j] / ++y;
return Math.log(2.5066282746310005 * ser / xx) - tmp;
};
// Gamma function
gammafn = function gammafn(x)
{
var p = [ -1.716185138865495, 24.76565080557592, -379.80425647094563,
629.3311553128184, 866.9662027904133, -31451.272968848367,
-36144.413418691176, 66456.14382024054];
var q = [ -30.8402300119739, 315.35062697960416, -1015.1563674902192,
-3107.771671572311, 22538.118420980151, 4755.8462775278811,
-134659.9598649693, -115132.2596755535];
var fact = false,
n = 0,
xden = 0,
xnum = 0,
y = x,
i,
z,
yi,
res,
sum,
ysq;
if (y <= 0) {
res = y % 1 + 3.6e-16;
if (res) {
fact = (!(y & 1) ? 1 : -1) * Math.PI / Math.sin(Math.PI * res);
y = 1 - y;
} else
return Infinity;
}
yi = y;
if (y < 1)
z = y++;
else
z = (y -= n = (y | 0) - 1) - 1;
for (i = 0; i < 8; ++i) {
xnum = (xnum + p[i]) * z;
xden = xden * z + q[i];
}
res = xnum / xden + 1;
if (yi < y)
res /= yi;
else if (yi > y) {
for (i = 0; i < n; ++i) {
res *= y;
y++;
}
}
if (fact)
res = fact / res;
return res;
};
// Beta function
betafn = function betafn(x,y)
{
// ensure arguments are positive
if (x <= 0 || y <= 0)
return undefined;
// make sure x + y doesn't exceed the upper limit of usable values
return (x + y > 170)
? Math.exp(betaln(x, y))
: gammafn(x) * gammafn(y) / gammafn(x + y);
};
// Natural logarithm of Beta function
betaln = function betaln(x, y)
{
return gammaln(x) + gammaln(y) - gammaln(x + y);
};
$(function() {
$("#slider-pertmin").slider({
range: "min",
value: 1,
min: 1,
max: 20,
step: 0.1,
slide: function(event,ui) {
if (ui.value > $("#slider-pertmode").slider("value")) {
$("#pertmin").val($("#slider-pertmode").slider("value") - 0.1);
$("#slider-pertmin").slider("value",$("#slider-pertmode").slider("value") - 0.1)
} else
$("#pertmin").val(ui.value);
redraw();
},
change: function(event,ui) {
$("#slider-pertmin").slider("value",$("#pertmin").val());
}
});
$("#slider-pertmode").slider({
range: "min",
value: 3,
min: 1,
max: 20,
step: 0.1,
slide: function(event,ui) {
if (ui.value < $("#slider-pertmin").slider("value")) {
$("#pertmode").val($("#slider-pertmin").slider("value") + 0.1);
$("#slider-pertmode").slider("value",$("#slider-pertmin").slider("value") + 0.1);
} else if (ui.value > $("#slider-pertmax").slider("value")) {
$("#pertmode").val($("#slider-pertmax").slider("value") - 0.1);
$("#slider-pertmode").slider("value",$("#slider-pertmax").slider("value") - 0.1);
} else
$("#pertmode").val(ui.value);
redraw();
},
change: function(event,ui) {
$("#slider-pertmode").slider("value",$("#pertmode").val());
}
});
$("#slider-pertmax").slider({
range: "min",
value: 6,
min: 1,
max: 20,
step: 0.1,
slide: function(event,ui) {
if (ui.value < $("#slider-pertmode").slider("value")) {
$("#pertmax").val($("#slider-pertmode").slider("value") + 0.1);
$("#slider-pertmax").slider("value",$("#slider-pertmode").slider("value") + 0.1);
} else
$("#pertmax").val(ui.value);
redraw();
},
change: function(event,ui) {
$("#slider-pertmax").slider("value",$("#pertmax").val());
}
});
$("#pertmin").val($("#slider-pertmin").slider("value"));
$("#pertmode").val($("#slider-pertmode").slider("value"));
$("#pertmax").val($("#slider-pertmax").slider("value"));
});
</script>
</head>
<body>
<div id="plot"></div>
<div id="plotOptions" class="ui-widget" style="width:250px">
<div class="block">
<label for="pertmin">min:</label> <input type="value" id="pertmin" style="border:none; background: transparent; width:40px;" />
<div class="ui-slider" id="slider-pertmin" />
</div>
<div class="block">
<label for="pertmode">mode:</label> <input type="value" id="pertmode" style="border:none; background: transparent; width:40px;" />
<div class="ui-slider" id="slider-pertmode" />
</div>
<div class="block">
<label for="pertmax">max:</label> <input type="value" id="pertmax" style="border:none; background: transparent; width:40px;" />
<div class="ui-slider" id="slider-pertmax" />
</div>
</div>
<script type="text/javascript">
var pert = {
min: 2,
mode: 4,
max: 9
};
pert.mu = (pert.min + 4*pert.mode + pert.max)/6;
pert.a1 = 6*(pert.mu - pert.min)/(pert.max - pert.min);
pert.a2 = 6*(pert.max - pert.mu)/(pert.max - pert.min);
pert.beta = betafn(pert.a1,pert.a2);
var data = [];
for (var k = pert.min; k < pert.max; k += 0.1) {
data.push({
x: k,
y: (1/pert.beta)*(Math.pow(k - pert.min,pert.a1 - 1) *
Math.pow(pert.max - k,pert.a2 - 1)) /
Math.pow(pert.max - pert.min,pert.a1 + pert.a2 - 1)
});
}
var margin = {
top: 20,
right: 20,
bottom: 35,
left: 50
},
width = 250 - margin.left - margin.right,
height = 250 - margin.top - margin.bottom;
var x = d3.scale.linear()
.domain([pert.min, pert.max])
.range([0, width]);
var y = d3.scale.linear()
.domain([0, 1])
.range([height, 0]);
var xAxis1 = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(5)
.innerTickSize(-6)
.outerTickSize(0)
.tickPadding(7);
var yAxis1 = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.innerTickSize(-6)
.outerTickSize(0)
.tickPadding(7);
var xAxis2 = d3.svg.axis()
.scale(x)
.orient("top")
.ticks(5)
.innerTickSize(-6)
.tickPadding(-20)
.outerTickSize(0)
.tickFormat("");
var yAxis2 = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.innerTickSize(6)
.tickPadding(-20)
.outerTickSize(0)
.tickFormat("");
var xGrid = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickSize(-height, -height, 0)
.tickFormat("");
var yGrid = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.tickSize(-width, -width, 0)
.tickFormat("");
var line = d3.svg.line()
.x(function(d) {
return x(d.x);
})
.y(function(d) {
return y(d.y);
})
.interpolate("linear");
var zoom = d3.behavior.zoom()
.x(x)
.y(y)
.scaleExtent([1, 1])
.on("zoom",redraw);
var svg = d3.select("#plot").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.call(zoom);
// Add x grid
svg.append("g")
.attr("class", "x grid")
.attr("transform", "translate(0," + height + ")")
.call(xGrid);
// Add y grid
svg.append("g")
.attr("class", "y grid")
.call(yGrid);
svg.append("g")
.attr("class", "x1 axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis1);
svg.append("g")
.attr("class", "y1 axis")
.call(yAxis1);
/* append additional X axis */
svg.append("g")
.attr("class", "x2 axis")
.attr("transform", "translate(" + [0, 0] + ")")
.call(xAxis2);
/* append additional y axis */
svg.append("g")
.attr("class", "y2 axis")
.attr("transform", "translate(" + [width, 0] + ")")
.call(yAxis2);
// Add x axis label
svg.append("text")
.attr("transform", "translate(" + (width / 2) + "," + (height + margin.bottom) + ")")
.style("font-size","15")
.style("text-anchor", "middle")
.text("x axis");
// Add y axis label
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("y",0 - margin.left)
.attr("x",0 - (height / 2))
.attr("dy", "1em")
.style("font-size","15")
.style("text-anchor", "middle")
.text("y axis");
svg.append("defs").append("clipPath")
.attr("id", "clip")
.append("rect")
.attr("width", width)
.attr("height", height);
svg.append("rect")
.attr("width", width)
.attr("height", height);
svg.append("path")
.attr("class", "line")
function redraw() {
pert.min = $("#slider-pertmin").slider("value");
pert.mode = $("#slider-pertmode").slider("value");
pert.max = $("#slider-pertmax").slider("value");
pert.mu = (pert.min + 4*pert.mode + pert.max)/6;
pert.a1 = 6*(pert.mu - pert.min)/(pert.max - pert.min);
pert.a2 = 6*(pert.max - pert.mu)/(pert.max - pert.min);
pert.beta = betafn(pert.a1,pert.a2);
x.domain([pert.min, pert.max]);
svg.select(".x1.axis").call(xAxis1);
svg.select(".y1.axis").call(yAxis1);
svg.select(".x2.axis").call(xAxis2);
svg.select(".y2.axis").call(yAxis2);
svg.select(".x.grid").call(xGrid);
svg.select(".y.grid").call(yGrid);
var data = [];
for (var k = pert.min; k < pert.max; k += 0.1) {
data.push({
x: k,
y: (1/pert.beta)*(Math.pow(k - pert.min,pert.a1 - 1) *
Math.pow(pert.max - k,pert.a2 - 1)) /
Math.pow(pert.max - pert.min,pert.a1 + pert.a2 - 1)
});
}
d3.select(".line").attr("d",line(data));
}
redraw();
</script>
</body>
</html>1.）关于UI问题，我会使用范围滑块来表示我的最小值/最大值。然后我会有点花哨，更新我的模式滑块的最小/最大（和宽度），使其始终在最小/最大之间。
2.）在滑块初始化之前，您正在调用您的初始redraw。这是因为滑块初始化是在document.ready事件中完成的，而您的初始redraw不是。一个简单的解决方案是：
$(function() {
redraw();
});
为了进一步扩展我的回答，这里有一个我将如何实现你的第一个问题的粗略例子。注意，我在这个例子的基础上用d3替换了jquery滑块。我一直在寻找一个基于d3的答案。
<!DOCTYPE html>
<html lang="en">
<head>
<title>MPERT</title>
<meta charset="utf-8">
<script src="//d3js.org/d3.v3.min.js"></script>
<style type="text/css">
svg {
font: 10px sans-serif;
shape-rendering: crispEdges;
}
rect {
fill: transparent;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
clip-path: url(#clip);
}
.grid .tick {
stroke: lightgrey;
opacity: 0.7;
}
.grid path {
stroke-width: 0;
}
circle {
-webkit-transition: fill-opacity 250ms linear;
}
.selecting circle {
fill-opacity: .2;
}
.selecting circle.selected {
stroke: #f00;
}
.resize path {
fill: #666;
fill-opacity: .8;
stroke: #000;
stroke-width: 1.5px;
}
.brush .extent {
fill-opacity: .125;
shape-rendering: crispEdges;
}
#plot {
background-color: #f9f9f9;
border: solid 1px #ddd;
padding: 10px;
width: 250px;
}
#plotOptions {
background-color: #f9f9f9;
border: solid 1px #ddd;
padding: 10px;
}
.block label {
display: inline-block;
width: 60px;
text-align: right;
}
</style>
<script type="text/javascript">
// Log-gamma function
gammaln = function gammaln(x) {
var cof = [76.18009172947146, -86.50532032941677, 24.01409824083091, -1.231739572450155, 0.1208650973866179e-2, -0.5395239384953e-5];
var j = 0;
var ser = 1.000000000190015;
var xx, y, tmp;
tmp = (y = xx = x) + 5.5;
tmp -= (xx + 0.5) * Math.log(tmp);
for (; j < 6; j++)
ser += cof[j] / ++y;
return Math.log(2.5066282746310005 * ser / xx) - tmp;
};
// Gamma function
gammafn = function gammafn(x) {
var p = [-1.716185138865495, 24.76565080557592, -379.80425647094563,
629.3311553128184, 866.9662027904133, -31451.272968848367, -36144.413418691176, 66456.14382024054
];
var q = [-30.8402300119739, 315.35062697960416, -1015.1563674902192, -3107.771671572311, 22538.118420980151, 4755.8462775278811, -134659.9598649693, -115132.2596755535];
var fact = false,
n = 0,
xden = 0,
xnum = 0,
y = x,
i,
z,
yi,
res,
sum,
ysq;
if (y <= 0) {
res = y % 1 + 3.6e-16;
if (res) {
fact = (!(y & 1) ? 1 : -1) * Math.PI / Math.sin(Math.PI * res);
y = 1 - y;
} else
return Infinity;
}
yi = y;
if (y < 1)
z = y++;
else
z = (y -= n = (y | 0) - 1) - 1;
for (i = 0; i < 8; ++i) {
xnum = (xnum + p[i]) * z;
xden = xden * z + q[i];
}
res = xnum / xden + 1;
if (yi < y)
res /= yi;
else if (yi > y) {
for (i = 0; i < n; ++i) {
res *= y;
y++;
}
}
if (fact)
res = fact / res;
return res;
};
// Beta function
betafn = function betafn(x, y) {
// ensure arguments are positive
if (x <= 0 || y <= 0)
return undefined;
// make sure x + y doesn't exceed the upper limit of usable values
return (x + y > 170) ? Math.exp(betaln(x, y)) : gammafn(x) * gammafn(y) / gammafn(x + y);
};
// Natural logarithm of Beta function
betaln = function betaln(x, y) {
return gammaln(x) + gammaln(y) - gammaln(x + y);
};
</script>
</head>
<body>
<div id="plot"></div>
<div id="plotOptions" class="ui-widget" style="width:250px">
</div>
<script>
var margin = {top: 5, right: 20, bottom: 5, left: 20},
width = 250 - margin.left - margin.right,
height = 50 - margin.top - margin.bottom
min = 0, max = 20;
var brushX = d3.scale.linear()
.range([0, width])
.domain([min, max]);
var brush = d3.svg.brush()
.x(brushX)
.extent([0, 20])
.on("brush", brushmove);
var arc = d3.svg.arc()
.outerRadius(height / 3)
.startAngle(0)
.endAngle(function(d, i) { return i ? -Math.PI : Math.PI; });
var svg = d3.select("#plotOptions").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height/2 + ")")
.call(d3.svg.axis().scale(brushX).orient("bottom"));
var brushg = svg.append("g")
.attr("class", "brush")
.call(brush);
brushg.selectAll(".resize").append("path")
.attr("transform", "translate(0," + height / 2 + ")")
.attr("d", arc);
brushg.selectAll("rect")
.attr("height", height);
var mode = 10;
var modeRect = svg.append("rect")
.attr("height", height)
.attr("width", 10)
.attr("y", 0)
.attr("x", brushX(mode) - 5)
.style("fill", "steelblue")
.style("opacity", 0.5);
var drag = d3.behavior.drag()
.on("drag", modeDrag);
modeRect.call(drag);
function modeDrag(modeX){
var xPos = d3.mouse(this)[0],
tmp = brushX.invert(xPos);
if (tmp > min && tmp < max){
mode = tmp;
modeRect
.attr('x', xPos);
redraw();
}
}
function brushmove() {
console.log(d3.event)
var extent = brush.extent();
min = extent[0];
max = extent[1];
if (min >= mode){
mode = min;
modeRect.attr('x', brushX(mode) - 5);
} else if (max <= mode){
mode = max;
modeRect.attr('x', brushX(mode) - 5);
}
redraw();
}
</script>
<script type="text/javascript">
var pert = {
min: 2,
mode: 4,
max: 9
};
pert.mu = (pert.min + 4 * pert.mode + pert.max) / 6;
pert.a1 = 6 * (pert.mu - pert.min) / (pert.max - pert.min);
pert.a2 = 6 * (pert.max - pert.mu) / (pert.max - pert.min);
pert.beta = betafn(pert.a1, pert.a2);
var data = [];
for (var k = pert.min; k < pert.max; k += 0.1) {
data.push({
x: k,
y: (1 / pert.beta) * (Math.pow(k - pert.min, pert.a1 - 1) *
Math.pow(pert.max - k, pert.a2 - 1)) /
Math.pow(pert.max - pert.min, pert.a1 + pert.a2 - 1)
});
}
var margin = {
top: 20,
right: 20,
bottom: 35,
left: 50
},
width = 250 - margin.left - margin.right,
height = 250 - margin.top - margin.bottom;
var x = d3.scale.linear()
.domain([pert.min, pert.max])
.range([0, width]);
var y = d3.scale.linear()
.domain([0, 1])
.range([height, 0]);
var xAxis1 = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(5)
.innerTickSize(-6)
.outerTickSize(0)
.tickPadding(7);
var yAxis1 = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.innerTickSize(-6)
.outerTickSize(0)
.tickPadding(7);
var xAxis2 = d3.svg.axis()
.scale(x)
.orient("top")
.ticks(5)
.innerTickSize(-6)
.tickPadding(-20)
.outerTickSize(0)
.tickFormat("");
var yAxis2 = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.innerTickSize(6)
.tickPadding(-20)
.outerTickSize(0)
.tickFormat("");
var xGrid = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickSize(-height, -height, 0)
.tickFormat("");
var yGrid = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.tickSize(-width, -width, 0)
.tickFormat("");
var line = d3.svg.line()
.x(function(d) {
return x(d.x);
})
.y(function(d) {
return y(d.y);
})
.interpolate("linear");
var zoom = d3.behavior.zoom()
.x(x)
.y(y)
.scaleExtent([1, 1])
.on("zoom", redraw);
var svg = d3.select("#plot").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.call(zoom);
// Add x grid
svg.append("g")
.attr("class", "x grid")
.attr("transform", "translate(0," + height + ")")
.call(xGrid);
// Add y grid
svg.append("g")
.attr("class", "y grid")
.call(yGrid);
svg.append("g")
.attr("class", "x1 axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis1);
svg.append("g")
.attr("class", "y1 axis")
.call(yAxis1);
/* append additional X axis */
svg.append("g")
.attr("class", "x2 axis")
.attr("transform", "translate(" + [0, 0] + ")")
.call(xAxis2);
/* append additional y axis */
svg.append("g")
.attr("class", "y2 axis")
.attr("transform", "translate(" + [width, 0] + ")")
.call(yAxis2);
// Add x axis label
svg.append("text")
.attr("transform", "translate(" + (width / 2) + "," + (height + margin.bottom) + ")")
.style("font-size", "15")
.style("text-anchor", "middle")
.text("x axis");
// Add y axis label
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 0 - margin.left)
.attr("x", 0 - (height / 2))
.attr("dy", "1em")
.style("font-size", "15")
.style("text-anchor", "middle")
.text("y axis");
svg.append("defs").append("clipPath")
.attr("id", "clip")
.append("rect")
.attr("width", width)
.attr("height", height);
svg.append("rect")
.attr("width", width)
.attr("height", height);
svg.append("path")
.attr("class", "line")
function redraw() {
pert.min = min - 0.001;
pert.mode = mode;
pert.max = max + 0.001;
pert.mu = (pert.min + 4 * pert.mode + pert.max) / 6;
pert.a1 = 6 * (pert.mu - pert.min) / (pert.max - pert.min);
pert.a2 = 6 * (pert.max - pert.mu) / (pert.max - pert.min);
pert.beta = betafn(pert.a1, pert.a2);
x.domain([pert.min, pert.max]);
svg.select(".x1.axis").call(xAxis1);
svg.select(".y1.axis").call(yAxis1);
svg.select(".x2.axis").call(xAxis2);
svg.select(".y2.axis").call(yAxis2);
svg.select(".x.grid").call(xGrid);
svg.select(".y.grid").call(yGrid);
var data = [];
for (var k = pert.min; k < pert.max; k += 0.1) {
data.push({
x: k,
y: (1 / pert.beta) * (Math.pow(k - pert.min, pert.a1 - 1) *
Math.pow(pert.max - k, pert.a2 - 1)) /
Math.pow(pert.max - pert.min, pert.a1 + pert.a2 - 1)
});
}
d3.select(".line").attr("d", line(data));
}
redraw();
</script>
</body>
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