Python的图表目录中的甘特图上的“多任务处理”

Question

我正在生成用于表示家具厂生产线的机器管理的甘特图。它有几台机器和机器并行工作，全职（或几乎是）。

我为Python找到了这个库（Chart-Director）并成功安装并运行了示例代码。

# 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 = []
for i in range(0,9):
    labels.append("Maq" + str(i))

# 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(1080, 640, 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, 900, 500, 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), 3600)

# 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")

此代码输出当前图像：

这样，就好像每台机器只能处理一次，但事实并非如此。换句话说，我想让每台机器在大多数时间都很忙，所以我需要在每个“行”中绘制几个“块”，但我找不到这样做的方法。

我已经尝试创建startDate作为日期列表的列表，但是我收到执行错误：

startDate = [[chartTime(2004, 8, 16), chartTime(2004, 8, 30)], chartTime(2004, 9, 13), ...

我挖了一点，发现可以创建多层图表： http://www.advsofteng.com/doc/cdpython.htm#layergantt.htm

但是，当我需要添加另一层时，这样做会非常复杂。

有没有更简单的方法？是否还有其他图书馆允许我这样做？

谢谢。

Answer 1

这是一个基于公司的答案，但您是否已经尝试过VARCHART XGantt（http://www.netronic.com/products/varchart-xgantt/overview.html）？ 它非常灵活，可以满足您的需求。