R：Plot_ly带跟踪线的3d图形

Question

我想将3d线添加到3d plot_ly曲面图。当我不在plot_ly调用中添加add_lines（）函数时，它看起来很好。只要我添加add_lines，图形就会变得混乱，并且不会添加3d线图。我正在积极使用4.7.0。

library(plotly) 
m_x = seq(-2, 2, .01) 
m_y = seq(-2, 2, .01) 
df = expand.grid(m_x, m_y) 
df['matrix'] = exp(-(df$Var1^2+df$Var2^2)) 
m_z = matrix(df$matrix, nrow = length(m_x), ncol = length(m_y)) 
m_df = list(m_x, m_y, m_z) 

x1 = seq(-2, 0, by=0.0202) 
y1 = runif(100, min=-0.03,max=0.03) 
z1 = exp(-(x1^2+y1^2)) 
df = data.frame(x1, y2, z2) 
names(df) <- c("df_x", "df_y", "df_z") 


colors = c("Blue", "Cyan", "Green", "Yellow", "Orange", "Red") 
p1 <- plot_ly(x = m_df[[1]], y = m_df[[2]], z = m_df[[3]], 
       colors = colors, color = m_df[[3]]) %>% add_surface() %>% 
    add_lines(x = df$df_x, y = df$df_y, z = df$df_z, data = df, 
      line = list(color = 'red', width = 1)) %>% 
    layout(title = "Hike_Example", 
     scene = list(aspectratio = list(x = 4, y = 4, z = 1))) 

p1 

Answer 1

这里是3D曲线的曲面代码。
我使用add_trace代替add_lines绘制了3D线。

library(plotly) 
m_x = seq(-2, 2, .01) 
m_y = seq(-2, 2, .01) 
df = expand.grid(m_x, m_y) 
df['matrix'] = exp(-(df$Var1^2+df$Var2^2)) 
m_z = matrix(df$matrix, nrow = length(m_x), ncol = length(m_y)) 
m_df = list(m_x, m_y, m_z) 

x1 = seq(-2, 0, by=0.0202) 
y1 = runif(100, min=-0.03,max=0.03) 
z1 = exp(-(x1^2+y1^2)) 
df = data.frame(x1, y1, z1) 
names(df) <- c("df_x", "df_y", "df_z") 

colors = c("Blue", "Cyan", "Green", "Yellow", "Orange", "Red") 
p1 <- plot_ly(x = m_df[[1]], y = m_df[[2]], z = m_df[[3]], 
       colors = colors, color = m_df[[3]]) %>% add_surface() %>% 
    add_trace(x = ~df_x, y = ~df_y, z = ~df_z, data = df, 
      type="scatter3d", mode="lines", 
      line = list(color = "red", width = 4)) %>% 
    layout(title = "Hike_Example", 
     scene = list(aspectratio = list(x = 4, y = 4, z = 1))) 

p1