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NEW: Add "Support xy expansion distance" setting

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Open the "Support xy expansion distance" setting for users who can set
expanding and shrinking distance along xy to change normal supports' overhang area.

Jira: STUDIO-1297
Change-Id: If3a1efe99acaced12216966a6f8abd0dc3734757
(cherry picked from commit c1fd588a181b17403109b64a0019818f428252da)
This commit is contained in:
MusangKing 2022-11-25 18:23:54 +08:00 • committed by Lane.Wei
parent ab49516ec1
commit d1e4cb430c
10 changed files with 21 additions and 7 deletions
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7
src/libslic3r/SupportMaterial.cpp
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@ -1512,6 +1512,7 @@ static inline Polygons detect_overhangs(
0.;
const coordf_t max_bridge_length = scale_(object_config.max_bridge_length.value);
const bool bridge_no_support = object_config.bridge_no_support.value;
const coordf_t xy_expansion = scale_(object_config.support_expansion.value);
if (layer_id == 0)
{
@ -1567,9 +1568,9 @@ static inline Polygons detect_overhangs(
// Offset the support regions back to a full overhang, restrict them to the full overhang.
// This is done to increase size of the supporting columns below, as they are calculated by
// propagating these contact surfaces downwards.
diff_polygons = diff(
intersection(expand(diff_polygons, lower_layer_offset, SUPPORT_SURFACES_OFFSET_PARAMETERS), layerm_polygons),
lower_layer_polygons);
diff_polygons =
expand(diff(intersection(expand(diff_polygons, lower_layer_offset, SUPPORT_SURFACES_OFFSET_PARAMETERS), layerm_polygons), lower_layer_polygons),
xy_expansion, SUPPORT_SURFACES_OFFSET_PARAMETERS);
}
//FIXME add user defined filtering here based on minimal area or minimum radius or whatever.