+$(document).ready( function() {
+
+var count = parseInt( $('#facet-count').text() );
+if ( count > 5000 ) {
+ console.debug( 'skip graph', count );
+ return;
+}
+console.debug( 'drawing graph', count );
+
var data = {
x: {
min: Number.MAX_VALUE,
range: 0,
inc: 0,
inc_bar: 0,
- inc_px: 0,
data: [],
px: [],
num_labels: 0,
data: [],
inc: 0,
num_labels: 0,
- labels: [],
- num_labels: 0,
label_spacing: 25,
},
width: 600,
ctx.moveTo( 0, 0 );
ctx.beginPath();
-for( var i in data.x.data ) {
+var elements = data.x.data.length;
+var step = elements / data.width;
+console.debug( elements, step );
+if ( step < 1 ) step = 1;
+var i_float = 0;
+while( i_float < elements ) {
+ var i = i_float.toFixed();
var x = data.x.data[i];
if ( data.numeric ) x = Math.ceil( ( x - data.x.min ) / data.x.range * data.width );
var y = Math.ceil( ( data.y.data[i] - data.y.min ) / data.y.range * data.height );
data.x.px.push( x );
} else {
var x_px = i * data.x.inc_bar;
- console.debug( x_px, y );
+// console.debug( x_px, y );
ctx.fillRect( x_px, 0, data.x.inc_bar, -y );
ctx.strokeRect( x_px, 0, data.x.inc_bar, -y );
}
+ i_float += step;
}
ctx.stroke();
axis.num_labels = Math.round( size / axis.label_spacing );
if ( axis.num_labels > axis.range ) axis.num_labels = axis.range;
axis.inc = Math.ceil( axis.range / axis.num_labels );
- axis.inc_px = Math.ceil( size / axis.num_labels );
- var pos = 0;
for( var val = axis.min; val < axis.max ; val += axis.inc ) {
+ var pos = Math.ceil( ( val - axis.min ) / axis.range * size );
$('<li style="'+css_pos+': '+pos+'px"><span class="line"></span><span class="label">' + val + '</span></li>')
.appendTo(labels);
- pos += axis.inc_px;
}
$('<li style="'+last_css_pos+'"><span class="line"></span><span class="label">' + axis.max + '</span></li>')
console.debug( 'data', data );
+}); // document.ready