How to implement a special type tree diagram

[Deqing Li <an...@gmail.com>]

Hi all,

I want to add a special type tree diagram, with each node is a line chart,
seeing attachments. I feel confused about how to implement this.
I know I should draw the tree first, but when to draw the special node? Do
you have any good ideas, please share with me.


Best wishes,
Deqing

Re: How to implement a special type tree diagram

[SHUANG SU <su...@gmail.com>]

Currently, `series` can layout based on a coordinate system, but reversed
the
dependency is not supported.

If the developers intend to implement the reversed dependency, they have to
call
`setOption` twice, where the first `setOption` creates the "base series",
and then
the position of the upper coordinate systems or series can be determined by
calling the API `chart.convertToPixel`, then `setOption` again to draw them.

Since this way brings an extra `setOpiton`, it might bring a little trouble
in some
scenarios: the view updating caused by interactions have to be implemented,
but not built-in supported. And the performance optimization in this case is
left to the developer.

But there are also some advantages in this way: flexible and powerful.

While the days that designing echarts 4.0, we used to considered the idea:
any component (including series, system coordinates) are able to layout
based
on a series. But it probably causes a significant change of the underlying
structure
but not sure the profits. So this topic did not continue at that time.

About the scenario of the tree case,  I think the previous way (two
`setOption`)
can be tried first. See how far we can do with this.


------------------------------
 Su Shuang (100pah)
------------------------------



SHUANG SU <su...@gmail.com> 于2018年7月4日周三 下午9:34写道：

> Try add attachment ...
> [image: a.png]
> ​
>
> ------------------------------
>  Su Shuang (100pah)
> ------------------------------
>
>
>
> Deqing Li <an...@gmail.com> 于2018年7月4日周三 下午9:26写道：
>
>> Hi all,
>>
>> I want to add a special type tree diagram, with each node is a line
>> chart, seeing attachments. I feel confused about how to implement this.
>> I know I should draw the tree first, but when to draw the special node?
>> Do you have any good ideas, please share with me.
>>
>>
>> Best wishes,
>> Deqing
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: dev-unsubscribe@echarts.apache.org
>> For additional commands, e-mail: dev-help@echarts.apache.org
>
>

Re: How to implement a special type tree diagram

[SHUANG SU <su...@gmail.com>]

Try add attachment ...
[image: a.png]
​

------------------------------
 Su Shuang (100pah)
------------------------------



Deqing Li <an...@gmail.com> 于2018年7月4日周三 下午9:26写道：

> Hi all,
>
> I want to add a special type tree diagram, with each node is a line chart,
> seeing attachments. I feel confused about how to implement this.
> I know I should draw the tree first, but when to draw the special node? Do
> you have any good ideas, please share with me.
>
>
> Best wishes,
> Deqing
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@echarts.apache.org
> For additional commands, e-mail: dev-help@echarts.apache.org