When this option enabled, only generate supports for sharp tail, cantilever,
thin pillar (not well supported). So holes are safe from unnessary supports.
Currently only works for tree supports, will need to copied to normal
supports if it works fine.
Change-Id: I5eb86484a5b503149e3bfdee8ce73f76a0a849e4
1. unsupported sharp tails and large overhang have different messages
2. do not popup warning for total area (only warning for one single
large overhang)
Change-Id: I153e559915a92c6676468539cf619dafe915f997
(cherry picked from commit 67b593150f8de847d9b1999bf0d7a549eb1ef154)
1. fix sequential printing tall objects. Now the print order is not determined by auto-arrange,
so wee need to add a new rule: lower objects should not exceed height_to_rod.
2. sequential printing is better centered.
Change-Id: Ic320722654f0335d2589060fa14c71a5aaa3f571
0. disable arranging selected
1. fix bug where brim is not correct.
2. fix bug where big circle objects are not arranged properly
3. disable default enable_rotation
Change-Id: Ifc69f35d900ff63ec1e9ec8bf8638afc6ea7d54b
(cherry picked from commit 2ed1b0dd8573a1e10aaf77f0d9f8896cef304427)