zentao/extension/ipd/execution/ext/config/zentaobiz.php

<?php
if(!isset($config->execution->reportChart)) $config->execution->reportChart = new stdclass();

$config->execution->reportChart->exportFields = array();
$config->execution->reportChart->exportFields['bug']['basic']['basic']         = array('total', 'effective', 'useCase', 'fixed', 'developedStory', 'defect');
$config->execution->reportChart->exportFields['bug']['basic']['efficientRate'] = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['fixedRate']     = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['caseBugRate']   = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['statusMap']     = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['productMap']    = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['severityMap']   = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['priMap']        = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['resolutionMap'] = 'image';
$config->execution->reportChart->exportFields['bug']['basic']['typeMap']       = 'image';

$config->execution->reportChart->exportFields['bug']['progress']['progress']         = array('total', 'active', 'fixed');
$config->execution->reportChart->exportFields['bug']['progress']['dailyNum']         = 'image';
$config->execution->reportChart->exportFields['bug']['progress']['userCreatedBugs']  = 'image';
$config->execution->reportChart->exportFields['bug']['progress']['userResolvedBugs'] = 'image';