require("chartdirector")
class LinecompareController < ApplicationController
def index()
@title = "Line with Target Zone"
@ctrl_file = File.expand_path(__FILE__)
@noOfCharts = 1
render :template => "templates/chartview"
end
#
# Render and deliver the chart
#
def getchart()
# The data for the upper and lower bounding lines
upperY = [60, 60, 100, 100, 60, 60]
lowerY = [40, 40, 80, 80, 40, 40]
zoneX = [0, 2.5, 3.5, 5.5, 6.5, 10]
# The data for the spline curve
curveY = [50, 44, 54, 48, 58, 50, 90, 85, 104, 82, 96, 90, 74, 52, 35, 58, 46, 54, 48, 52,
50]
curveX = [0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10
]
# Create a XYChart object of size 600 x 300 pixels, with a light grey (cccccc) background,
# black border, and 1 pixel 3D border effect.
c = ChartDirector::XYChart.new(600, 300, 0xcccccc, 0x000000, 1)
# Set directory for loading images to current script directory
c.setSearchPath(File.dirname(__FILE__))
# Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on
# both horizontal and vertical grid lines with light grey color (cccccc)
c.setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc)
# Add a legend box at (55, 32) (top of the chart) with horizontal layout. Use 9pt Arial Bold
# font. Set the background and border color to Transparent.
c.addLegend(55, 32, false, "arialbd.ttf", 9).setBackground(ChartDirector::Transparent)
# Add a title box to the chart using 15pt Times Bold Italic font. The title is in CDML and
# includes embedded images for highlight. The text is white (ffffff) on a black background,
# with a 1 pixel 3D border.
c.addTitle(
"<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " \
"<*img=star.png*><*img=star.png*><*/*>", "timesbi.ttf", 15, 0xffffff).setBackground(
0x000000, -1, 1)
# Add a title to the y axis
c.yAxis().setTitle("Temperature")
# Add a title to the x axis using CMDL
c.xAxis().setTitle("<*block,valign=absmiddle*><*img=clock.png*> Elapsed Time (hour)<*/*>")
# Set the axes width to 2 pixels
c.xAxis().setWidth(2)
c.yAxis().setWidth(2)
# Add a purple (800080) spline layer to the chart with a line width of 2 pixels
splineLayer = c.addSplineLayer(curveY, 0x800080, "Molecular Temperature")
splineLayer.setXData(curveX)
splineLayer.setLineWidth(2)
# Add a line layer to the chart with two dark green (338033) data sets, and a line width of
# 2 pixels
lineLayer = c.addLineLayer2()
lineLayer.addDataSet(upperY, 0x338033, "Target Zone")
lineLayer.addDataSet(lowerY, 0x338033)
lineLayer.setXData(zoneX)
lineLayer.setLineWidth(2)
# Color the zone between the upper zone line and lower zone line as semi-transparent light
# green (8099ff99)
c.addInterLineLayer(lineLayer.getLine(0), lineLayer.getLine(1), 0x8099ff99, 0x8099ff99)
# If the spline line gets above the upper zone line, color to area between the lines red
# (ff0000)
c.addInterLineLayer(splineLayer.getLine(0), lineLayer.getLine(0), 0xff0000,
ChartDirector::Transparent)
# If the spline line gets below the lower zone line, color to area between the lines blue
# (0000ff)
c.addInterLineLayer(splineLayer.getLine(0), lineLayer.getLine(1),
ChartDirector::Transparent, 0x0000ff)
# Add a custom CDML text at the bottom right of the plot area as the logo
c.addText(575, 250,
"<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*>" \
"<*font=timesbi.ttf,size=10,color=804040*>Molecular\nEngineering<*/*>").setAlignment(
ChartDirector::BottomRight)
# Output the chart
send_data(c.makeChart2(ChartDirector::PNG), :type => "image/png", :disposition => "inline")
end
end |
