plotparallels()/plotmeridians() only support xoffset or yoffset not both and do not support horizontalalignment or verticalalignment

plotparallels() and plotmeridians() only support xoffset or yoffset not both.

plotparallels() and plotmeridians() do not support horizontalalignment or verticalalignment via kwargs as these are hard coded within Basemap.

I found both of these because I wanted the labels inside the map border with the parallels above the line at the right of the plot and the meridians to the right of the line at the bottom of the plot. I found a hack by altering the returned matplotlib objects:

meridians = bmap.drawmeridians(meridians,labels=[0,0,1,0],fontsize=10,
                               color='gray', yoffset=-abs(right-left)
for k, v in meridians.iteritems():
    v[1][0].set_horizontalalignment('left')

This sets the label to the top but then moving them the size of the plot then setting horizontal alignment via returned matplotlib object.

plotparallels() と plotmeridians() の実装を特定し、xoffset、yoffset、kwargs がどのように処理されるかを追跡します。マップの両側にラベルを配置した場合の動作を検証します。両方のオフセットが同時に機能し、horizontalalignment と verticalalignment が受け付けられる必要があります。呼び出し側がこの位置決めのために返された matplotlib オブジェクトを変更する必要がなくなれば完了です。