[GitHub] [echarts] Misaosama opened a new issue, #18060: [Bug] Sankey chart edge width is zero when the edge value is negative (edge width should be proportional to abs(edge.value) )

Tue, 13 Dec 2022 09:35:39 -0800 


Misaosama opened a new issue, #18060:
URL: https://github.com/apache/echarts/issues/18060

   ### Version
   
   5.4.0
   
   ### Link to Minimal Reproduction
   
   https://jsfiddle.net/plainheart/e46ozpqj/7/
   
   ### Steps to Reproduce
   
   If the source node a goes to target nodes b and c. The behavior is not 
expected because the width of edge with negative value is 0.
   +--------------------+
   | a: 100 --> b: 150      |
   |            --> c: -50      |
   +-------------------+
   
   My option is `option = {
     tooltip: {
           trigger: 'item',
           triggerOn: 'mousemove',
         },
     slient: true,
     series: {
       slient: true,
       type: 'sankey',
       layout: 'none',
       emphasis: {
         focus: 'adjacency'
       },
       label: {
         formatter: (params) => {
           return params.name + ': ' + params.value
         }
       },
       tooltip: {
             trigger: 'item',
             triggerOn: 'mousemove'
           },
       selectedMode: true,
       data: [
         {
           name: 'a',
           value: 100,
           depth: 1,
           itemStyle: {
             color: 'blue'
           }
         },
         {
           name: 'b',
           value: 150,
           depth: 2,
           itemStyle: {
             color: 'green'
           }
         },
         {
           name: 'c',
           value: -50,
           depth: 2,
           itemStyle: {
             color: 'red'
           }
         },
       ],
       links: [
         {
           source: 'a',
           target: 'b',
           value:150,
           lineStyle: {
             color: 'green',
             opacity: 0.4
           }
         },
         {
           source: 'a',
           target: 'c',
           value: -50,
           lineStyle: {
             color: 'red',
             opacity: 0.4
           }
         },
       ]
     }
   };`
   
   ### Current Behavior
   
   <img width="895" alt="Screen Shot 2022-12-13 at 11 33 30 AM" 
src="https://user-images.githubusercontent.com/42242012/207403888-9d6f1765-4989-41da-ad34-1e1946aeb69c.png";>
   
   
   ### Expected Behavior
   
   <img width="163" alt="Screen Shot 2022-12-13 at 11 34 28 AM" 
src="https://user-images.githubusercontent.com/42242012/207404070-8071625e-6676-4b46-94c5-48ea865b8b3c.png";>
   
   The expected behavior should be like this. The "Operating Loss" means 
negative value.
   
   ### Environment
   
   ```markdown
   - OS:
   - Browser:
   - Framework:
   ```
   
   
   ### Any additional comments?
   
   _No response_


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