Question

我在TapTool上使用CustomJS回调时遇到问题。我想在点击之后强制选择50个点。因此，我做了一个javascript回调，修改了数据源中选择的索引列表，并应该更新绘图。我可以通过控制台看到数据源已更新，但情节不是。

我已经从文档示例（https://bokeh.pydata.org/en/latest/docs/user_guide/interaction/callbacks.html）制作了测试版本，但它既不起作用也不起作用。是否因为更改选择时更新绘图有不同的方法？

以下是我所做的测试版本：

from bokeh.layouts import column
from bokeh.models import CustomJS, ColumnDataSource, Slider
from bokeh.plotting import Figure, output_file, show

output_notebook()

x = [x*0.005 for x in range(0, 200)]
y = x

source = ColumnDataSource(data=dict(x=x, y=y))

plot = Figure(plot_width=400, plot_height=400)
plot.circle('x', 'y', source=source, line_width=3, line_alpha=0.6)

callback = CustomJS(args=dict(source=source), code="""
    var l_selected=source.selected;
    var indices = l_selected['1d'].indices;
    if(indices.length <= 1) {
        var new_indices = Array.from(new Array(50), (x,i) => i + indices[0]);
        l_selected['1d'].indices=new_indices;
    }
    source.selected=l_selected;
    console.log(source.selected)
    source.change.emit();
""")


slider = Slider(start=0.1, end=4, value=1, step=.1, title="power")
slider.js_on_change('value', callback)

plot.add_tools(TapTool(callback=callback))

layout = column(slider, plot)

show(layout)

我不知道它是否有用，但我使用的是0.12.16版本的Bokeh，我试图让它在Jupyter笔记本中运行

Answer 1

Seb在评论中给出了答案。由于散景0.12.15

BIM360Setup.GET;
SalespersonPurchaser.GET(BIM360Setup."Default Job Admin");

IF Token = '' THEN 
  Token := Get3LeggedToken;

StorageID := COPYSTR(FileURNID,STRPOS(FileURNID,'/') + 1);//***

HttpWebRequestMgt.Initialize(STRSUBSTNO('https://developer.api.autodesk.com/oss/v2/buckets/wip.dm.prod/objects/%1',StorageID));
HttpWebRequestMgt.DisableUI;
HttpWebRequestMgt.SetMethod('PUT');
HttpWebRequestMgt.SetContentType('application/x-www-form-urlencoded');
HttpWebRequestMgt.AddHeader('Authorization','Bearer ' + Token);
HttpWebRequestMgt.SetReturnType('*/*');

FileManagement.BLOBImportFromServerFile(TempBlob,ServerFolder+'\'+Filename);
HttpWebRequestMgt.AddBodyBlob(TempBlob);


CLEAR(TempBlob);
TempBlob.Blob.CREATEINSTREAM(ResponseInStream);

HttpWebRequestMgt.GetResponse(ResponseInStream,HttpStatusCode,ResponseHeaders);

ResponseText := TempBlob.ReadAsText('',TEXTENCODING::UTF8);

CLEAR(HttpWebRequestMgt);
CLEAR(TempBlob);

成为source.selected['1d']

使用TapTool

1 个答案: