So i get chart from excel file (.xlsx) by this code.
XSSFSheet sheet = workbook.getSheetAt(10);
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFChart chart = drawing.getCharts().get(0);
and i need to resize this chart like
chart.setHeight(100);
Using CTMarker and XSSFDrawing, you shall resize with the coordinates as below.
XSSFDrawing draw= ((XSSFSheet)currentSheet).createDrawingPatriarch();
CTMarker chartEndCoords = CTMarker.Factory.newInstance();
chartEndCoords.setCol(column);
chartEndCoords.setColOff(0);
chartEndCoords.setRow(row);
chartEndCoords.setRowOff(0);
draw.getCTDrawing().getTwoCellAnchorArray(0).setTo(chartEndCoords);
Please refer here for detailed explanation- Resize in POI