【技术求助】Bokeh 0.12.3+Google API绘图时地图组件尺寸不符、溢出框架

Hey, I’ve dealt with similar tile overflow issues in older Bokeh versions before—let’s walk through the likely causes and fixes for your Google Map + Bokeh 0.12.3 World View problem:

• Mismatched Figure/Container Dimensions
  Bokeh 0.12.3’s World View has default figure sizes that might not play nice with your display container. First, explicitly set your figure’s width and height to match the space you have, and confirm the coordinate ranges are set to standard global bounds:

  from bokeh.plotting import figure
  
  p = figure(
      width=800, 
      height=600, 
      x_range=(-180, 180), 
      y_range=(-90, 90),
      tools="pan,wheel_zoom,reset"
  )
  

  Also, check the HTML/CSS of the container holding your Bokeh plot—avoid fixed padding or overflow: auto styles that could push the map outside its frame.

• Misaligned Tile Coordinates
  Google Maps uses WGS84 coordinates, so if your Bokeh figure’s x_range/y_range aren’t set to -180 to 180 (longitude) and -90 to 90 (latitude), the tiles will render off-center and spill over. Double-check these ranges—older Bokeh versions were less forgiving if these weren’t explicitly defined.

• Outdated Bokeh Version Limitations
  Bokeh 0.12.3 is quite old (released in 2017), and there were known bugs with tile rendering boundaries that got fixed in later updates. If you can afford to upgrade, even moving to a 1.x release would likely resolve the overflow issue. Just note that some syntax changed post-0.12.x, so you might need to adjust your tile source setup slightly.

• Incorrect Google Tile Source Configuration
  Make sure your Google Map tile URL is properly formatted with the right placeholders for zoom ({z}), x-tile ({x}), and y-tile ({y}). A typo here can cause tiles to load in the wrong position, leading to overflow. Here’s a correct example for a standard Google Map tile source:

  from bokeh.models import WMTSTileSource
  
  google_tiles = WMTSTileSource(
      url="https://mt1.google.com/vt/lyrs=m&x={x}&y={y}&z={z}"
  )
  p.add_tile(google_tiles)
  

内容的提问来源于stack exchange，提问作者Cracken