r - 在 Plotly 中向 3D 散点图添加注释

Question

我是这个领域的新手，希望得到一些帮助。我刚刚开始使用 Plotly，并使用它来构建一个非常基本的 3D 散点图，该图对一些货架以及元素所在位置进行建模。当我构建“架子”并渲染绘图时，我想在文本中添加注释，指示我正在查看哪组架子。
Here is the current output of my program和 this is what I am trying to do

我尝试查看文档并尝试添加注释(就像我对 2D Analogs 所做的那样)，但在编译代码时，文本没有显示。

p <- plot_ly(all, x = X, y = Y, z = Z,  
    text = paste0("Candy: ", SKU,"; QTY: ", Qty), 
    color = OccupiedPct, 
    colors = cols,
    hoverinfo = "text",
    type = "scatter3d", mode = "markers") %>%
layout(
   title = "Shelves"
)
sub <- list(
    x = 3,
    y = 2,
    z = 0,
    text = "Shelf1",
    xref = "x",
    yref = "y",
    zref = "z",
    showarrow = FALSE
)
p %>%
   layout(annotations = sub)

提前谢谢您!迈克

#

更新感谢@MLavoie 的回答，并且很抱歉排除了可重现的数据集。不幸的是我无法复制你所做的事情。我注意到你的图上的 z 轴设置为零，我尝试重置我的，但没有成功。然而，即使将点调整到绘图范围内，我仍然无法让它显示出来。这是我得到的 plotly : 当我运行这段代码时

set.seed(100)
d <- diamonds[sample(nrow(diamonds), 1000), ]

p <- plot_ly(d, x = carat, y = price, z=depth, text = paste("Clarity: ",     clarity),
         type="scatter3d", mode="markers")

p %>% 
  add_trace(x = 2.5, y = 5000, z = 56, type = "scatter3d", text = "test", mode = "text") %>% 
  add_trace(x = 2.5, y = 15000, z = 56, type = "scatter3d", text = "test", mode = "text") %>% 
  layout(
    xaxis = list(range = c(0, 5)),
    yaxis = list(range(0,20000)),
    zaxis = list(range(0,100)),
    showlegend = FALSE)

为了完整起见，这是我的 session 信息:

R version 3.2.1 (2015-06-18)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 8 x64 (build 9200)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] plotly_2.0.16 ggplot2_2.0.0

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.3      digest_0.6.9     grid_3.2.1       plyr_1.8.3       R6_2.1.2         jsonlite_0.9.19  gtable_0.1.2     magrittr_1.5     scales_0.3.0     httr_1.1.0      
[11] viridis_0.3.2    tools_3.2.1      htmlwidgets_0.5  munsell_0.4.2    yaml_2.1.13      base64enc_0.1-3  colorspace_1.2-6 htmltools_0.3    gridExtra_2.0.0 

再次感谢!

Answer 1

使用 iris 数据集(您没有提供可重现的示例)，您可以尝试:

set.seed(100)
d <- diamonds[sample(nrow(diamonds), 1000), ]

p <- plot_ly(d, x = carat, y = price, z=depth, text = paste("Clarity: ", clarity),
        type="scatter3d", mode="markers")

p %>% 
add_trace(x = 2.5, y = 5000, z = 0, type = "scatter3d", text = "test", mode = "text") %>% 
add_trace(x = 2.5, y = 15000, z = 0, type = "scatter3d", text = "test", mode = "text") %>% 
layout(showlegend = FALSE)