To link polylines, they must be closed and drawn correctly, and, in particular, must not contain any self-intersections.
This is particularly important when using a subtraction layer, as REGIONS are generated for area calculations in this case. However, these can only be generated if the polyline has been drawn correctly.
When importing DWGs from external service providers, however, it frequently happens that polylines are delivered with multiple points, duplicate start and end points, or—in the worst case—actual self-intersections.
Therefore, a check has been implemented in the eTASK-AutoCAD interface that corrects, from the outset, those error cases that would lead to errors during REGION generation. This applies to the following cases:
Duplicate start and end points of a closed polyline
Duplicate points, i.e., segments with zero length between two vertices
True self-intersections cannot be corrected in this way; to ensure that problem cases can be quickly identified and corrected, the eTASK ANALYSE palette (command line: ANALYZE POLYLINES) has been implemented, which lists these sorted by layer and highlights them when clicked.
The markings remain when the palette is closed; editing and subsequent updating are also possible while the palette is open.
Once the corrections are complete, the markings can be removed.
This feature allows polyline issues to be quickly and effectively identified and corrected. The palette can remain open even while multiple DWGs are being edited simultaneously.
