Question

这是对类似post的跟进。

我有同样的问题，但是从R Markdown编织成HTML时。通过@CJYetman友善地发布的解决方案，我能够为我的sankey获得正确的大小，但仅适用于第一个。

我每次尝试添加onRender并更新方括号中的数字，但是我一定做错了。这是完整的R Markdown代码（将第一个图表编织到HTML时仅呈现）：

---
title: "test"
author: "CS"
date: "02/08/2018"
output:
  html_document: default
  pdf_document: default
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r}
library(htmlwidgets)
library(networkD3)
library(magrittr)

nodes = data.frame("name" = factor(as.character(1:9)),
                   "group" = as.character(c(1,2,2,3,3,4,4,4,4)))

links = as.data.frame(matrix(byrow = T, ncol = 3, c(
  0, 1, 1400,
  0, 2, 18600,
  1, 3, 400,
  1, 4, 1000,
  3, 5, 100,
  3, 6, 40,
  3, 7, 20,
  3, 8, 4
)))
names(links) = c("source","target","value")

links
```

this chart works fine in firefox:
```{r}
sn1 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source", 
                    Target = "target", Value = "value", NodeID = "name", 
                    NodeGroup = "group", fontSize = 12)

htmlwidgets::onRender(sn1, 'document.getElementsByTagName("svg")[0].setAttribute("viewBox", "")')
```

but this one doesn't display at all when knitted:
```{r}
sn2 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source", 
                    Target = "target", Value = "value", NodeID = "name", 
                    NodeGroup = "group", fontSize = 12, sinksRight = FALSE)

htmlwidgets::onRender(sn2, 'document.getElementsByTagName("svg")[1].setAttribute("viewBox", "")')
```

and neither does this one:
```{r}
sn3 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source", 
                    Target = "target", Value = "value", NodeID = "name", 
                    NodeGroup = "group", fontSize = 12, sinksRight = FALSE)

htmlwidgets::onRender(sn3, 'document.getElementsByTagName("svg")[2].setAttribute("viewBox", "")')
```

Answer 1

1）仅使用htmlwidgets::onRender()函数一次，否则不清楚JavaScript何时运行以及运行时其他元素是否存在。

2）在htmlwidgets::onRender()函数中（最好在渲染最后一个sankeyNetwork时运行），从每个渲染的sankeyNetworks中删除视图框。

3）为了使用htmlwidgets::onRender()函数运行多个JavaScript命令，请将所有命令包装在（JavaScript）函数中

---
title: "test"
author: "CS"
date: "02/08/2018"
output:
  html_document: default
pdf_document: default
---

  ```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r}
library(htmlwidgets)
library(networkD3)
library(magrittr)

nodes = data.frame("name" = factor(as.character(1:9)),
                   "group" = as.character(c(1,2,2,3,3,4,4,4,4)))

links = as.data.frame(matrix(byrow = T, ncol = 3, c(
  0, 1, 1400,
  0, 2, 18600,
  1, 3, 400,
  1, 4, 1000,
  3, 5, 100,
  3, 6, 40,
  3, 7, 20,
  3, 8, 4
)))
names(links) = c("source","target","value")

links
```

this chart works fine in firefox:
  ```{r}
sn1 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source",
                     Target = "target", Value = "value", NodeID = "name",
                     NodeGroup = "group", fontSize = 12)

sn1
```

but this one doesn't display at all when knitted:
```{r}
sn2 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source",
                    Target = "target", Value = "value", NodeID = "name",
                    NodeGroup = "group", fontSize = 12, sinksRight = FALSE)

sn2
```

and neither does this one:
```{r}
sn3 <- sankeyNetwork(Links = links, Nodes = nodes, Source = "source",
                    Target = "target", Value = "value", NodeID = "name",
                    NodeGroup = "group", fontSize = 12, sinksRight = FALSE)

htmlwidgets::onRender(sn3, jsCode =
        'function(){
          document.getElementsByTagName("svg")[0].setAttribute("viewBox", "");
          document.getElementsByTagName("svg")[1].setAttribute("viewBox", "");
          document.getElementsByTagName("svg")[2].setAttribute("viewBox", "");
        }')
```

使用多个sankeyNetwork（NetworkD3）编织降价标签时，在Firefox中控制打印大小

1 个答案: