0000215: Channeling can sometimes leave freestanding (not attached to wall) ramps/slopes

Issue History
Date Modified	Username	Field	Change
2010-04-02 19:29	kultz	New Issue
2010-04-26 19:20	Footkerchief	Summary	Repeated channelling fails to remove upward ramps. => Channeling can sometimes leave freestanding ramps
2010-04-26 19:21	Footkerchief	Summary	Channeling can sometimes leave freestanding ramps => Channeling can sometimes leave freestanding upward ramps
2010-04-26 19:21	Footkerchief	Summary	Channeling can sometimes leave freestanding upward ramps => Channeling can sometimes leave freestanding (not attached to wall) ramps/slopes
2010-04-26 20:10	Footkerchief	Relationship added	has duplicate 0001560
2010-04-26 20:10	Footkerchief	Issue Monitored: Footkerchief
2010-04-26 20:10	Footkerchief	Relationship added	related to 0000036
2010-04-26 20:24	Zeg	Note Added: 0005253
2010-04-26 23:52	Rafal99	Note Added: 0005293
2010-04-28 14:04	Footkerchief	Category	General => Dwarf Mode -- Jobs, Designations
2010-07-25 14:28	Footkerchief	Relationship added	related to 0001295
2011-03-05 10:59	Footkerchief	Relationship added	related to 0000732
2014-01-27 14:00	Footkerchief	Tag Attached: Intentional/Expected?
2014-07-18 08:38	Footkerchief	Relationship added	related to 0007441
2015-12-14 02:51	Detros	Note Added: 0033875

Notes
(0005253) Zeg (reporter) 2010-04-26 20:24	Is this not the same as how carving upward ramps used to work in 40d? That is, removing every square creates a ramp, so a single isolated square surrounded by other ramps will auto-remove the ramps around it, but the digging process produces a ramp which is itself isolated. I assumed that it happened like that because it only detects if a ramp gets removed when a tile next to it is altered, not when the ramp itself is created. It seems the same, since the new 'channeling' is really just a copy of the ramp digging process. But thats not to say that the ramps being left isolated wasn't a bug in 40d too.

(0005293) Rafal99 (reporter) 2010-04-26 23:52	Yeah it was the same with 'Carve ramp' designation in 40d. If you make a ramp from a lone wall it will stay unsupported. It seems that unsupported ramps are only removed when a nearby wall is ramped/removed.

(0033875) Detros (manager) 2015-12-14 02:51	Seen this in 0.42.02: when I designated one square area to be channelled down one level, it ended with one ramp left in the middle of area just under designated square. I have designated it to be removed "d"-"z" the next second, though.