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Email notifications are now sent as Blind carbon copy by default. This can be changed in email notifications settings (new setting added). Emission email address setting moved to the email notifications settings view. git-svn-id: http://redmine.rubyforge.org/svn/trunk@944 e93f8b46-1217-0410-a6f0-8f06a7374b81
Jean-Philippe Lang - - Load All Authors

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Line.rb
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/ lib / SVG / Graph / Line.rb
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Jean-Philippe Lang
added simple svn statistics graphs, rendered using SVG::Graph...
 r377 require 'SVG/Graph/Graph'
module SVG
module Graph
# === Create presentation quality SVG line graphs easily
#
# = Synopsis
#
# require 'SVG/Graph/Line'
#
# fields = %w(Jan Feb Mar);
# data_sales_02 = [12, 45, 21]
# data_sales_03 = [15, 30, 40]
#
# graph = SVG::Graph::Line.new({
# :height => 500,
# :width => 300,
# :fields => fields,
# })
#
# graph.add_data({
# :data => data_sales_02,
# :title => 'Sales 2002',
# })
#
# graph.add_data({
# :data => data_sales_03,
# :title => 'Sales 2003',
# })
#
# print "Content-type: image/svg+xml\r\n\r\n";
# print graph.burn();
#
# = Description
#
# This object aims to allow you to easily create high quality
# SVG line graphs. You can either use the default style sheet
# or supply your own. Either way there are many options which can
# be configured to give you control over how the graph is
# generated - with or without a key, data elements at each point,
# title, subtitle etc.
#
# = Examples
#
# http://www.germane-software/repositories/public/SVG/test/single.rb
#
# = Notes
#
# The default stylesheet handles upto 10 data sets, if you
# use more you must create your own stylesheet and add the
# additional settings for the extra data sets. You will know
# if you go over 10 data sets as they will have no style and
# be in black.
#
# = See also
#
# * SVG::Graph::Graph
# * SVG::Graph::BarHorizontal
# * SVG::Graph::Bar
# * SVG::Graph::Pie
# * SVG::Graph::Plot
# * SVG::Graph::TimeSeries
#
# == Author
#
# Sean E. Russell <serATgermaneHYPHENsoftwareDOTcom>
#
# Copyright 2004 Sean E. Russell
# This software is available under the Ruby license[LICENSE.txt]
#
class Line < SVG::Graph::Graph
# Show a small circle on the graph where the line
# goes from one point to the next.
attr_accessor :show_data_points
# Accumulates each data set. (i.e. Each point increased by sum of
# all previous series at same point). Default is 0, set to '1' to show.
attr_accessor :stacked
# Fill in the area under the plot if true
attr_accessor :area_fill
# The constructor takes a hash reference, fields (the names for each
# field on the X axis) MUST be set, all other values are defaulted to
# those shown above - with the exception of style_sheet which defaults
# to using the internal style sheet.
def initialize config
raise "fields was not supplied or is empty" unless config[:fields] &&
config[:fields].kind_of?(Array) &&
config[:fields].length > 0
super
end
# In addition to the defaults set in Graph::initialize, sets
# [show_data_points] true
# [show_data_values] true
# [stacked] false
# [area_fill] false
def set_defaults
init_with(
:show_data_points => true,
:show_data_values => true,
:stacked => false,
:area_fill => false
)
self.top_align = self.top_font = self.right_align = self.right_font = 1
end
protected
def max_value
max = 0
if (stacked == true) then
sums = Array.new(@config[:fields].length).fill(0)
@data.each do |data|
sums.each_index do |i|
sums[i] += data[:data][i].to_f
end
end
max = sums.max
else
max = @data.collect{|x| x[:data].max}.max
end
return max
end
def min_value
min = 0
if (min_scale_value.nil? == false) then
min = min_scale_value
elsif (stacked == true) then
min = @data[-1][:data].min
else
min = @data.collect{|x| x[:data].min}.min
end
return min
end
def get_x_labels
@config[:fields]
end
def calculate_left_margin
super
label_left = @config[:fields][0].length / 2 * font_size * 0.6
@border_left = label_left if label_left > @border_left
end
def get_y_labels
maxvalue = max_value
minvalue = min_value
range = maxvalue - minvalue
top_pad = range == 0 ? 10 : range / 20.0
scale_range = (maxvalue + top_pad) - minvalue
scale_division = scale_divisions || (scale_range / 10.0)
if scale_integers
scale_division = scale_division < 1 ? 1 : scale_division.round
end
rv = []
maxvalue = maxvalue%scale_division == 0 ?
maxvalue : maxvalue + scale_division
minvalue.step( maxvalue, scale_division ) {|v| rv << v}
return rv
end
def calc_coords(field, value, width = field_width, height = field_height)
coords = {:x => 0, :y => 0}
coords[:x] = width * field
coords[:y] = @graph_height - value * height
return coords
end
def draw_data
minvalue = min_value
fieldheight = (@graph_height.to_f - font_size*2*top_font) /
(get_y_labels.max - get_y_labels.min)
fieldwidth = field_width
line = @data.length
prev_sum = Array.new(@config[:fields].length).fill(0)
cum_sum = Array.new(@config[:fields].length).fill(-minvalue)
for data in @data.reverse
lpath = ""
apath = ""
if not stacked then cum_sum.fill(-minvalue) end
data[:data].each_index do |i|
cum_sum[i] += data[:data][i]
c = calc_coords(i, cum_sum[i], fieldwidth, fieldheight)
lpath << "#{c[:x]} #{c[:y]} "
end
if area_fill
if stacked then
(prev_sum.length - 1).downto 0 do |i|
c = calc_coords(i, prev_sum[i], fieldwidth, fieldheight)
apath << "#{c[:x]} #{c[:y]} "
end
c = calc_coords(0, prev_sum[0], fieldwidth, fieldheight)
else
apath = "V#@graph_height"
c = calc_coords(0, 0, fieldwidth, fieldheight)
end
@graph.add_element("path", {
"d" => "M#{c[:x]} #{c[:y]} L" + lpath + apath + "Z",
"class" => "fill#{line}"
})
end
@graph.add_element("path", {
"d" => "M0 #@graph_height L" + lpath,
"class" => "line#{line}"
})
if show_data_points || show_data_values
cum_sum.each_index do |i|
if show_data_points
@graph.add_element( "circle", {
"cx" => (fieldwidth * i).to_s,
"cy" => (@graph_height - cum_sum[i] * fieldheight).to_s,
"r" => "2.5",
"class" => "dataPoint#{line}"
})
end
make_datapoint_text(
fieldwidth * i,
@graph_height - cum_sum[i] * fieldheight - 6,
cum_sum[i] + minvalue
)
end
end
prev_sum = cum_sum.dup
line -= 1
end
end
def get_css
return <<EOL
/* default line styles */
.line1{
fill: none;
stroke: #ff0000;
stroke-width: 1px;
}
.line2{
fill: none;
stroke: #0000ff;
stroke-width: 1px;
}
.line3{
fill: none;
stroke: #00ff00;
stroke-width: 1px;
}
.line4{
fill: none;
stroke: #ffcc00;
stroke-width: 1px;
}
.line5{
fill: none;
stroke: #00ccff;
stroke-width: 1px;
}
.line6{
fill: none;
stroke: #ff00ff;
stroke-width: 1px;
}
.line7{
fill: none;
stroke: #00ffff;
stroke-width: 1px;
}
.line8{
fill: none;
stroke: #ffff00;
stroke-width: 1px;
}
.line9{
fill: none;
stroke: #ccc6666;
stroke-width: 1px;
}
.line10{
fill: none;
stroke: #663399;
stroke-width: 1px;
}
.line11{
fill: none;
stroke: #339900;
stroke-width: 1px;
}
.line12{
fill: none;
stroke: #9966FF;
stroke-width: 1px;
}
/* default fill styles */
.fill1{
fill: #cc0000;
fill-opacity: 0.2;
stroke: none;
}
.fill2{
fill: #0000cc;
fill-opacity: 0.2;
stroke: none;
}
.fill3{
fill: #00cc00;
fill-opacity: 0.2;
stroke: none;
}
.fill4{
fill: #ffcc00;
fill-opacity: 0.2;
stroke: none;
}
.fill5{
fill: #00ccff;
fill-opacity: 0.2;
stroke: none;
}
.fill6{
fill: #ff00ff;
fill-opacity: 0.2;
stroke: none;
}
.fill7{
fill: #00ffff;
fill-opacity: 0.2;
stroke: none;
}
.fill8{
fill: #ffff00;
fill-opacity: 0.2;
stroke: none;
}
.fill9{
fill: #cc6666;
fill-opacity: 0.2;
stroke: none;
}
.fill10{
fill: #663399;
fill-opacity: 0.2;
stroke: none;
}
.fill11{
fill: #339900;
fill-opacity: 0.2;
stroke: none;
}
.fill12{
fill: #9966FF;
fill-opacity: 0.2;
stroke: none;
}
/* default line styles */
.key1,.dataPoint1{
fill: #ff0000;
stroke: none;
stroke-width: 1px;
}
.key2,.dataPoint2{
fill: #0000ff;
stroke: none;
stroke-width: 1px;
}
.key3,.dataPoint3{
fill: #00ff00;
stroke: none;
stroke-width: 1px;
}
.key4,.dataPoint4{
fill: #ffcc00;
stroke: none;
stroke-width: 1px;
}
.key5,.dataPoint5{
fill: #00ccff;
stroke: none;
stroke-width: 1px;
}
.key6,.dataPoint6{
fill: #ff00ff;
stroke: none;
stroke-width: 1px;
}
.key7,.dataPoint7{
fill: #00ffff;
stroke: none;
stroke-width: 1px;
}
.key8,.dataPoint8{
fill: #ffff00;
stroke: none;
stroke-width: 1px;
}
.key9,.dataPoint9{
fill: #cc6666;
stroke: none;
stroke-width: 1px;
}
.key10,.dataPoint10{
fill: #663399;
stroke: none;
stroke-width: 1px;
}
.key11,.dataPoint11{
fill: #339900;
stroke: none;
stroke-width: 1px;
}
.key12,.dataPoint12{
fill: #9966FF;
stroke: none;
stroke-width: 1px;
}
EOL
end
end
end
end