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Projects often have to report progress, and ultimately, Gantt charts, did not feel particularly conveniently the tool. Internet search found that most production is about Excel Gantt chart. Today, the Internet search and found ChartDirector charting library can create Gantt charts, support for multiple programming languages including Python. Baidu to CharDirector is introduced:
ChartDirector is a commercial charting library in many languages, use it to do a chart very fine beautiful, free version, but there will be logo information.
Try it, and feel part of a Gantt chart to meet the production, there is no depth to explore, temporarily take notes.
ChartDirector for Python installation
I was under the Windows 10 operating system installation, ChartDirector version 6.0. Installation and normal Python different modules, but it is also simple. First go to the official website to download, select the appropriate version of the operating system and programming language.
ChartDirector installation zip file compression format, unpacked, we can see that there are so few folders under ChartDirector folder:
The lib folder all files (not folders) to copy the file python site-packages installation directory folder below, the following files are copies of the file:
You can use the following methods to view the site-packages folder location:
>>> import sys
>>> for line in sys.path:
... print (line)
...
After copying the installation with the following command to check the import, i.e., no error indicates successful installation:
from pychartdir import *
Ordinary Gantt chart
The following exemplary sample code from the official code pythondemos file folder after decompression gantt.py:
from pychartdir import *
# data for the gantt chart, representing the start date, end date and names for various activities
startDate = [chartTime(2004, 8, 16), chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(2004,
9, 20), chartTime(2004, 9, 27), chartTime(2004, 10, 4), chartTime(2004, 10, 25), chartTime(2004,
11, 1), chartTime(2004, 11, 8)]
endDate = [chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(2004, 9, 27), chartTime(2004,
10, 4), chartTime(2004, 10, 11), chartTime(2004, 11, 8), chartTime(2004, 11, 8), chartTime(2004,
11, 22), chartTime(2004, 11, 22)]
labels = ["Market Research", "Define Specifications", "Overall Archiecture", "Project Planning",
"Detail Design", "Software Development", "Test Plan", "Testing and QA", "User Documentation"]
# Create a XYChart object of size 620 x 280 pixels. Set background color to light blue (ccccff),
# with 1 pixel 3D border effect.
c = XYChart(620, 280, 0xccccff, 0x000000, 1)
# Add a title to the chart using 15 points Times Bold Itatic font, with white (ffffff) text on a
# deep blue (000080) background
c.addTitle("Simple Gantt Chart Demo", "timesbi.ttf",
15, 0xffffff).setBackground(0x000080)
# Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative white/grey background.
# Enable both horizontal and vertical grids by setting their colors to grey (c0c0c0). Set vertical
# major grid (represents month boundaries) 2 pixels in width
c.setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, LineColor, 0xc0c0c0, 0xc0c0c0).setGridWidth(2,
1, 1, 1)
# swap the x and y axes to create a horziontal box-whisker chart
c.swapXY()
# Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with ticks every 7 days
# (1 week)
c.yAxis().setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 * 7)
# Set multi-style axis label formatting. Month labels are in Arial Bold font in "mmm d" format.
# Weekly labels just show the day of month and use minor tick (by using '-' as first character of
# format string).
c.yAxis().setMultiFormat(StartOfMonthFilter(), "<*font=arialbd.ttf*>{value|mmm d}",
StartOfDayFilter(), "-{value|d}")
# Set the y-axis to shown on the top (right + swapXY = top)
c.setYAxisOnRight()
# Set the labels on the x axis
c.xAxis().setLabels(labels)
# Reverse the x-axis scale so that it points downwards.
c.xAxis().setReverse()
# Set the horizontal ticks and grid lines to be between the bars
c.xAxis().setTickOffset(0.5)
# Add a green (33ff33) box-whisker layer showing the box only.
c.addBoxWhiskerLayer(startDate, endDate, None, None, None, 0x00cc00, SameAsMainColor,
SameAsMainColor)
# Output the chart
c.makeChart("gantt.png")
Gantt effect, is not registered logo:
The multilayer Gantt
The multilayer Gantt code also comes from the official website .
from pychartdir import *
# the names of the tasks
labels = ["Market Research",
"Define Specifications",
"Overall Archiecture",
"Project Planning",
"Detail Design",
"Software Development",
"Test Plan",
"Testing and QA",
"User Documentation"]
# the planned start dates and end dates for the tasks
startDate = [chartTime(2004, 8, 16),
chartTime(2004, 8, 30),
chartTime(2004, 9, 13),
chartTime(2004, 9, 20),
chartTime(2004, 9, 27),
chartTime(2004, 10, 4),
chartTime(2004, 10, 25),
chartTime(2004, 11, 1),
chartTime(2004, 11, 8)]
endDate = [chartTime(2004, 8, 30),
chartTime(2004, 9, 13),
chartTime(2004, 9, 27),
chartTime(2004, 10, 4),
chartTime(2004, 10, 11),
chartTime(2004, 11, 8),
chartTime(2004, 11, 8),
chartTime(2004, 11, 22),
chartTime(2004, 11, 22)]
# the actual start dates and end dates for the tasks up to now
actualStartDate = [chartTime(2004, 8, 16),
chartTime(2004, 8, 27),
chartTime(2004, 9, 9),
chartTime(2004, 9, 18),
chartTime(2004, 9, 22)]
actualEndDate = [chartTime(2004, 8, 27),
chartTime(2004, 9, 9),
chartTime(2004, 9, 27),
chartTime(2004, 10, 2),
chartTime(2004, 10, 8)]
# Create a XYChart object of size 620 x 280 pixels. Set background color to light
# green (ccffcc) with 1 pixel 3D border effect.
c = XYChart(620, 280, 0xccffcc, 0x000000, 1)
# Add a title to the chart using 15 points Times Bold Itatic font, with white
# (ffffff) text on a dark green (0x6000) background
c.addTitle("Multi-Layer Gantt Chart Demo", "timesbi.ttf", 15, 0xffffff
).setBackground(0x006000)
# Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative
# white/grey background. Enable both horizontal and vertical grids by setting their
# colors to grey (c0c0c0). Set vertical major grid (represents month boundaries) 2
# pixels in width
c.setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, LineColor, 0xc0c0c0, 0xc0c0c0
).setGridWidth(2, 1, 1, 1)
# swap the x and y axes to create a horziontal box-whisker chart
c.swapXY()
# Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with ticks
# every 7 days (1 week)
c.yAxis().setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 * 7)
# Add a red (ff0000) dash line to represent the current day
c.yAxis().addMark(chartTime(2004, 10, 8), c.dashLineColor(0xff0000, DashLine))
# Set multi-style axis label formatting. Month labels are in Arial Bold font in "mmm
# d" format. Weekly labels just show the day of month and use minor tick (by using
# '-' as first character of format string).
c.yAxis().setMultiFormat(StartOfMonthFilter(), "<*font=arialbd.ttf*>{value|mmm d}",
StartOfDayFilter(), "-{value|d}")
# Set the y-axis to shown on the top (right + swapXY = top)
c.setYAxisOnRight()
# Set the labels on the x axis
c.xAxis().setLabels(labels)
# Reverse the x-axis scale so that it points downwards.
c.xAxis().setReverse()
# Set the horizontal ticks and grid lines to be between the bars
c.xAxis().setTickOffset(0.5)
# Use blue (0000aa) as the color for the planned schedule
plannedColor = 0x0000aa
# Use a red hash pattern as the color for the actual dates. The pattern is created as
# a 4 x 4 bitmap defined in memory as an array of colors.
actualColor = c.patternColor([0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xffffff,
0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000,
0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff,
0xffffff], 4)
# Add a box whisker layer to represent the actual dates. We add the actual dates
# layer first, so it will be the top layer.
actualLayer = c.addBoxLayer(
actualStartDate, actualEndDate, actualColor, "Actual")
# Set the bar height to 8 pixels so they will not block the bottom bar
actualLayer.setDataWidth(8)
# Add a box-whisker layer to represent the planned schedule date
c.addBoxLayer(startDate, endDate, plannedColor, "Planned").setBorderColor(
SameAsMainColor)
# Add a legend box on the top right corner (595, 60) of the plot area with 8 pt Arial
# Bold font. Use a semi-transparent grey (80808080) background.
b = c.addLegend(595, 60, 0, "arialbd.ttf", 8)
b.setAlignment(TopRight)
b.setBackground(0x80808080, -1, 2)
# Output the chart
c.makeChart("layergantt.png")
Gantt effects:
