Covered Polylines with Knockout in 2D and 3D
Posted: Mon May 31, 2021 4:57 pmCovered polylines are a useful feature as they allow good representation in 2D and also 3D but there is a current limitation when Knockout (KO) is applied to a covered polyline with different z/b and z/h values, ie is a 3D entity.
The screenshot below shows a covered polyline with KO on over another covered polyline. When used on plan drawings this is useful for hiding elements below. The covered polyline views correctly as a 3D entity in the Polyline Properties O2C window.
However, when viewed in a typical iso or perspective view directly in DataCAD, the same covered polyline with KO displays as a flat polyline. The screenshot below shows the same entities, one with KO and one without.
Wishlist: Improve the covered polyline display to allow entities with KO and a different zb/zh value (3D) to display correctly as a 3D entity and not a flat 2D entity.
The screenshot below shows a covered polyline with KO on over another covered polyline. When used on plan drawings this is useful for hiding elements below. The covered polyline views correctly as a 3D entity in the Polyline Properties O2C window.
However, when viewed in a typical iso or perspective view directly in DataCAD, the same covered polyline with KO displays as a flat polyline. The screenshot below shows the same entities, one with KO and one without.
Wishlist: Improve the covered polyline display to allow entities with KO and a different zb/zh value (3D) to display correctly as a 3D entity and not a flat 2D entity.