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add option to set maximum y value

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This commit is contained in:
Emil Loer 2012-02-28 00:23:43 +01:00
parent 738f53ec72
commit 3b4934003e
3 changed files with 20 additions and 14 deletions
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15
morris.coffee
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@ -31,6 +31,7 @@ class Morris.Line
'#cb4b4b'
'#9440ed'
]
ymax: 'auto'
marginTop: 25
marginRight: 25
marginBottom: 30
@ -71,9 +72,11 @@ class Morris.Line
@xmin -= 1
@xmax += 1
# use $.map to flatten arrays and find the max y value
all_y_vals = $.map @series, (x) -> Math.max.apply null, x
@ymax = Math.max(20, Math.max.apply(null, all_y_vals))
# Compute the vertical range of the graph if desired
if @options.ymax == 'auto'
# use $.map to flatten arrays and find the max y value
all_y_vals = $.map @series, (x) -> Math.max.apply null, x
@options.ymax = Math.max(20, Math.max.apply(null, all_y_vals))
# Clear and redraw the graph
#
@ -85,11 +88,11 @@ class Morris.Line
@r = new Raphael(@el[0])
# calculate grid dimensions
left = @measureText(@ymax, @options.gridTextSize).width + @options.marginLeft
left = @measureText(@options.ymax, @options.gridTextSize).width + @options.marginLeft
width = @el.width() - left - @options.marginRight
height = @el.height() - @options.marginTop - @options.marginBottom
dx = width / (@xmax - @xmin)
dy = height / @ymax
dy = height / @options.ymax
# quick translation helpers
transX = (x) =>
@ -104,7 +107,7 @@ class Morris.Line
lineInterval = height / (@options.numLines - 1)
for i in [0..@options.numLines-1]
y = @options.marginTop + i * lineInterval
v = Math.round((@options.numLines - 1 - i) * @ymax / (@options.numLines - 1))
v = Math.round((@options.numLines - 1 - i) * @options.ymax / (@options.numLines - 1))
@r.text(left - @options.marginLeft/2, y, v)
.attr('font-size', @options.gridTextSize)
.attr('fill', @options.gridTextColor)

17
morris.js
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@ -19,6 +19,7 @@
lineWidth: 3,
pointSize: 4,
lineColors: ['#0b62a4', '#7A92A3', '#4da74d', '#afd8f8', '#edc240', '#cb4b4b', '#9440ed'],
ymax: 'auto',
marginTop: 25,
marginRight: 25,
marginBottom: 30,
@ -63,10 +64,12 @@
this.xmin -= 1;
this.xmax += 1;
}
all_y_vals = $.map(this.series, function(x) {
return Math.max.apply(null, x);
});
return this.ymax = Math.max(20, Math.max.apply(null, all_y_vals));
if (this.options.ymax === 'auto') {
all_y_vals = $.map(this.series, function(x) {
return Math.max.apply(null, x);
});
return this.options.ymax = Math.max(20, Math.max.apply(null, all_y_vals));
}
};
Line.prototype.redraw = function() {
@ -74,11 +77,11 @@
_this = this;
this.el.empty();
this.r = new Raphael(this.el[0]);
left = this.measureText(this.ymax, this.options.gridTextSize).width + this.options.marginLeft;
left = this.measureText(this.options.ymax, this.options.gridTextSize).width + this.options.marginLeft;
width = this.el.width() - left - this.options.marginRight;
height = this.el.height() - this.options.marginTop - this.options.marginBottom;
dx = width / (this.xmax - this.xmin);
dy = height / this.ymax;
dy = height / this.options.ymax;
transX = function(x) {
if (_this.xvals.length === 1) {
return left + width / 2;
@ -92,7 +95,7 @@
lineInterval = height / (this.options.numLines - 1);
for (i = 0, _ref = this.options.numLines - 1; 0 <= _ref ? i <= _ref : i >= _ref; 0 <= _ref ? i++ : i--) {
y = this.options.marginTop + i * lineInterval;
v = Math.round((this.options.numLines - 1 - i) * this.ymax / (this.options.numLines - 1));
v = Math.round((this.options.numLines - 1 - i) * this.options.ymax / (this.options.numLines - 1));
this.r.text(left - this.options.marginLeft / 2, y, v).attr('font-size', this.options.gridTextSize).attr('fill', this.options.gridTextColor).attr('text-anchor', 'end');
this.r.path("M" + left + "," + y + 'H' + (left + width)).attr('stroke', this.options.gridLineColor).attr('stroke-width', this.options.gridStrokeWidth);
}

2
morris.min.js vendored
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