# Hatch Boundary Search Improvement [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [User Guide](Help%20System/GSTARCAD/2021/User%20Guide/(User%20Guide).md) → [Additional Pages](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/(Additional%20Pages).md) <!-- help-structure:notice --> > **Source status:** This source topic has 2 recorded inherited issue(s). [Source issue details](../../Source%20Issues.md). <!-- /help-structure:notice --> ## Hatch Boundary Search Improvement Another improvement of core performance is related to Hatch. GstarCAD previous version was pretty good already. But for some special hatch drawings or boundaries, the boundary search calculation was still very slow or even could not be handled making the system fall into nonresponse state after picking an internal point of the boundary or area to be hatched. **![Missing source image: pic/Hatch Boundary Search Improvement 1.jpg](Help%20System/GSTARCAD/2021/assets/missing-source-image.svg)** GstarCAD 2017 further optimized the algorithm of hatch boundary calculation to ensure great accuracy and fast result when hatching a specific area on the drawing. **![Missing source image: pic/Hatch Boundary Search Improvement 2.jpg](Help%20System/GSTARCAD/2021/assets/missing-source-image.svg)** --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../2017/User%20Guide/Additional%20Pages/Hatch%20Boundary%20Search%20Improvement.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/User%20Guide/Additional%20Pages/Hatch%20Boundary%20Search%20Improvement.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Additional%20Pages/Hatch%20Boundary%20Search%20Improvement.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/Additional%20Pages/Hatch%20Boundary%20Search%20Improvement.md)