在R中的plotly饼图中使用自定义图标 [英] Use a custom icon in plotly's pie chart in R
问题描述
我想知道是否有一种方法可以为plotly的饼图提供自定义图标,而不是通常的饼图划分
I was wondering if there's a way to have a custom icon for plotly's pie chart instead of the usual pie division
到目前为止,我正在使用饼图显示性别信息,该饼图如下所示:
As of now I'm displaying the gender information using a pie chart which looks as below:
我正在尝试使其看起来像下面链接中的性别图:
I'm trying to make it look like the gender plot in the link below:
plotly代码如下:
The plotly code is as under:
plot_ly(genderselection, labels = ~Gender, values = ~Freq, type = 'pie') %>%
layout(title = paste0("Gender Distribution of Patients from Boston"),
xaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = FALSE),
yaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = FALSE),
legend=list(orientation='h'))
性别选择数据框:
Gender Freq
F 70
M 65
如果不使用plotly,是否还有其他库可用于使用自定义图标显示信息?
If not using plotly is there any other library that can be used to display information using custom icons ?
推荐答案
(1)下载可用的png文件此处,然后将其另存为您的工作目录man_woman.png
(2)运行以下代码:
(1) Download the png file available here and save it in your working directory as man_woman.png
(2) Run the following code:
library(png)
library(plotly)
genderselection <- read.table(text="
Gender Freq
F 70
M 30
", header=T)
pcts <- round(prop.table(genderselection$Freq)*100)
# Load png file with man and woman
img <- readPNG("man_woman.png")
h <- dim(img)[1]
w <- dim(img)[2]
# Find the rows where feet starts and head ends
pos1 <- which(apply(img[,,1], 1, function(y) any(y==1)))
mn1 <- min(pos1)
mx1 <- max(pos1)
pospctM <- round((mx1-mn1)*pcts[2]/100+mn1)
pospctF <- round((mx1-mn1)*pcts[1]/100+mn1)
# Fill bodies with a different color according to percentages
imgmtx <- img[h:1,,1]
whitemtx <- (imgmtx==1)
colmtx <- matrix(rep(FALSE,h*w),nrow=h)
midpt <- round(w/2)-10
colmtx[mx1:pospctM,1:midpt] <- TRUE
colmtx[mx1:pospctF,(midpt+1):w] <- TRUE
imgmtx[whitemtx & colmtx] <- 0.5
# Plot matrix using heatmap and print text
labs <- c(paste0(pcts[2], "% Males"),paste0(pcts[1], "% Females"))
ax <- list(ticks='', showticklabels=FALSE, showgrid=FALSE, zeroline=FALSE)
p <- plot_ly(z = imgmtx, showscale=FALSE, type='heatmap', width = 500, height = 500) %>%
add_text(x = c(100,250), y = c(20,20), type='heatmap', mode="text",
text=labs, showlegend=FALSE, textfont=list(size=20, color="#FFFFFF"), inherit=FALSE) %>%
layout(xaxis = ax, yaxis = ax)
p
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