te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>dart - How can place 0 values in Flutter RadarChart at center of the chart using fl_chart? - Stack Overflow

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    dart - How can place 0 values in Flutter RadarChart at center of the chart using fl_chart? - Stack Overflow

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    In my Flutter app I have some 0 values in my radar chart, the problem is that values aren't placed in the center of the chart. Is there a way to do it? This is a sample code using fl_chart ^0.65.0:

    RadarChart(
  RadarChartData(
    dataSets: [
      RadarDataSet(
        dataEntries: [
          RadarEntry(value: 0),
          RadarEntry(value: 1),
          RadarEntry(value: 2),
        ],
      ),
    ],
  ),
)

    UPDATE The only solution find out is to update package to that version: fl_chart: ^0.70.2, in which has been added the parameter isMinValueAtCenter to RadarChartData

    In my Flutter app I have some 0 values in my radar chart, the problem is that values aren't placed in the center of the chart. Is there a way to do it? This is a sample code using fl_chart ^0.65.0:

    RadarChart(
  RadarChartData(
    dataSets: [
      RadarDataSet(
        dataEntries: [
          RadarEntry(value: 0),
          RadarEntry(value: 1),
          RadarEntry(value: 2),
        ],
      ),
    ],
  ),
)

    UPDATE The only solution find out is to update package to that version: fl_chart: ^0.70.2, in which has been added the parameter isMinValueAtCenter to RadarChartData

    • flutter
    • dart
    • radar-chart
    • fl-chart
    Share Improve this question edited yesterday Paolo Luchini asked 2 days ago Paolo LuchiniPaolo Luchini 1112 silver badges8 bronze badges
    Add a comment  | 

    1 Answer 1

    Reset to default 0

    Try setting minimum tickCount and manually define the getTitle of RadarChartData, also I would suggest to give entryRadius value as 0 which will help values to stay aligned.

    for your give code you are having currently 3 values so set the tickCount value as 3 and try giving getTitle as empty string which removes label if it is unnecessary as shown in code. Hope this helps

    RadarChart(
  RadarChartData(
    tickCount: 3,
    getTitle: (index, angle) => '',
    dataSets: [
      RadarDataSet(
        borderColor: Colors.blue,
        entryRadius: 0, 
        dataEntries: [
          RadarEntry(value: 0),
          RadarEntry(value: 1),
          RadarEntry(value: 2),
        ],
      ),
    ],
  ),
);

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