R-plotly|交互式甘特图（Gantt chart）-项目管理/学习计划

library(plotly)
# Read in data
df <- read.csv("GanttChart.csv", stringsAsFactors = F)
# Convert to dates
df$Start <- as.Date(df$Start, format = "%m/%d/%Y")
head(df,3)

# 根据Resource 设置甘特图的颜色
cols <- RColorBrewer::brewer.pal(length(unique(df$Resource)), name = "Set3")
df$color <- factor(df$Resource, labels = cols)

# 初始一个空对象
p <- plot_ly()

# 每个task一个line plot，起始时间和任务持续时长
for(i in 1:(nrow(df) - 1)){
  p <- add_trace(p,
                 x = c(df$Start[i], df$Start[i] + df$Duration[i]),  #起试和终止
                 y = c(i, i),  #
                 mode = "lines",
                 line = list(color = df$color[i], width = 20), #设置line plot的颜色和线宽
                 showlegend = F,
                 hoverinfo = "text", #悬浮信息为text信息
                 #设置text显示内容
                 text = paste("Task: ", df$Task[i], "<br>",
                              "Duration: ", df$Duration[i], "days<br>",
                              "Resource: ", df$Resource[i]),
                 evaluate = T ,
                 xaxis = list(showgrid = F, tickfont = list(color = "#e6e6e6")),
                 yaxis = list(showgrid = F, tickfont = list(color = "#e6e6e6"),
                 tickmode = "array", tickvals = 1:nrow(df), ticktext = unique(df$Task),
                 domain = c(0, 0.9)),
            plot_bgcolor = "#333333",  # 设置颜色
            paper_bgcolor = "#333333"
  )
}

p <- layout(p,
            xaxis = list(showgrid = F, tickfont = list(color = "#e6e6e6")),
            yaxis = list(showgrid = F, tickfont = list(color = "#e6e6e6"),
                   tickmode = "array", tickvals = 1:nrow(df), ticktext = unique(df$Task),
                   domain = c(0, 0.9)),
            plot_bgcolor = "#333333",  # Chart area color
            paper_bgcolor = "#333333") # Axis area color