In current studio, a brim area will be ignored if it does not be connected to any object island.
After patching, a brim area will be ignored if it does not connected to any object island and other brim areas.
Change-Id: I1aef5cd1af12cf76746f7614807aa03956d625ad
In auto brim mode, first layer of common support may be apart from object island, which is controled by support object distance.
if support object distance is lower than "flow width + brim_object_gap", the brim will not work.
Therefore, if first layer of common support is interesected with object island, the distance will be brim_object_gap in auto brim mode.
Change-Id: Icbb98af8fd9e84e3ac1977794ca2b60629dd53dd
1) if an object has a slender footprint but its height is small, brim will not be generated;
2) two volumes are treated as intersected if their distance is larger than 0.3mm, instead of 0.8mm.
Change-Id: Iaf7ab644ba9bcc1a8d404acd455f1d8b57e1eb91
wintergua