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modify support_material_synchronize_layers

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Wang YB
2024-05-04 17:00:05 +08:00
parent 96b64539e2
commit 8c0b581581
4 changed files with 118 additions and 16 deletions
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108
src/libslic3r/Support/SupportMaterial.cpp
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@@ -1354,6 +1354,48 @@ static inline std::tuple<Polygons, Polygons, Polygons, float> detect_overhangs(
return std::make_tuple(std::move(overhang_polygons), std::move(contact_polygons), std::move(enforcer_polygons), no_interface_offset);
}
//w34
Layer *sync_gap_with_object_layer(const Layer &layer, const coordf_t gap_support_object, bool is_top_contact)
{
// sync gap with the object layer height
float gap_synced = 0;
if (is_top_contact) {
Layer *lower_layer = layer.lower_layer, *last_valid_gap_layer = layer.lower_layer;
while (lower_layer && gap_synced < gap_support_object) {
last_valid_gap_layer = lower_layer;
gap_synced += lower_layer->height;
lower_layer = lower_layer->lower_layer;
}
// maybe gap_synced is too large, find the nearest object layer (one layer above may be better)
if (std::abs(gap_synced - last_valid_gap_layer->height - gap_support_object) < std::abs(gap_synced - gap_support_object)) {
gap_synced -= last_valid_gap_layer->height;
last_valid_gap_layer = last_valid_gap_layer->upper_layer;
}
lower_layer = last_valid_gap_layer; // layer just below the last valid gap layer
if (last_valid_gap_layer->lower_layer)
lower_layer = last_valid_gap_layer->lower_layer;
return lower_layer;
} else {
Layer *upper_layer = layer.upper_layer, *last_valid_gap_layer = layer.upper_layer;
while (upper_layer && gap_synced < gap_support_object) {
last_valid_gap_layer = upper_layer;
gap_synced += upper_layer->height;
upper_layer = upper_layer->upper_layer;
}
// maybe gap_synced is too large, find the nearest object layer (one layer above may be better)
if (std::abs(gap_synced - last_valid_gap_layer->height - gap_support_object) < std::abs(gap_synced - gap_support_object)) {
gap_synced -= last_valid_gap_layer->height;
last_valid_gap_layer = last_valid_gap_layer->lower_layer;
}
if (gap_support_object > 0) {
upper_layer = last_valid_gap_layer; // layer just above the last valid gap layer
if (last_valid_gap_layer->upper_layer)
upper_layer = last_valid_gap_layer->upper_layer;
}
return upper_layer;
}
}
// Allocate one, possibly two support contact layers.
// For "thick" overhangs, one support layer will be generated to support normal extrusions, the other to support the "thick" extrusions.
static inline std::pair<SupportGeneratorLayer*, SupportGeneratorLayer*> new_contact_layer(
@@ -1382,9 +1424,18 @@ static inline std::pair<SupportGeneratorLayer*, SupportGeneratorLayer*> new_cont
height = layer.lower_layer->height;
bottom_z = (layer_id == 1) ? slicing_params.object_print_z_min : layer.lower_layer->lower_layer->print_z;
} else {
print_z = layer.bottom_z() - slicing_params.gap_support_object;
//w34
if (!object_config.support_material_synchronize_layers) {
print_z = layer.bottom_z() - slicing_params.gap_support_object;
height = 0;
} else {
Layer *synced_layer = sync_gap_with_object_layer(layer, slicing_params.gap_support_object, true);
print_z = synced_layer->print_z;
height = synced_layer->height;
}
//print_z = layer.bottom_z() - slicing_params.gap_support_object;
bottom_z = print_z;
height = 0.;
//height = 0.;
// Ignore this contact area if it's too low.
// Don't want to print a layer below the first layer height as it may not stick well.
//FIXME there may be a need for a single layer support, then one may decide to print it either as a bottom contact or a top contact
@@ -1408,11 +1459,15 @@ static inline std::pair<SupportGeneratorLayer*, SupportGeneratorLayer*> new_cont
// Contact layer will be printed with a normal flow, but
// it will support layers printed with a bridging flow.
if (object_config.thick_bridges && SupportMaterialInternal::has_bridging_extrusions(layer)) {
//w34
if (object_config.thick_bridges && SupportMaterialInternal::has_bridging_extrusions(layer)&& !object_config.support_material_synchronize_layers) {
coordf_t bridging_height = 0.;
for (const LayerRegion* region : layer.regions())
bridging_height += region->region().bridging_height_avg(print_config);
bridging_height /= coordf_t(layer.regions().size());
//w34
if (object_config.support_material_synchronize_layers)
bridging_height = std::ceil(bridging_height / object_config.layer_height - EPSILON) * object_config.layer_height;
coordf_t bridging_print_z = layer.print_z - bridging_height - slicing_params.gap_support_object;
if (bridging_print_z >= min_print_z) {
// Not below the first layer height means this layer is printable.
@@ -1430,8 +1485,12 @@ static inline std::pair<SupportGeneratorLayer*, SupportGeneratorLayer*> new_cont
bridging_layer->height = slicing_params.first_print_layer_height;
} else {
// Don't know the height yet.
bridging_layer->bottom_z = bridging_print_z;
bridging_layer->height = 0;
//w34
//bridging_layer->bottom_z = bridging_print_z;
//bridging_layer->height = 0;
bridging_layer->height = !object_config.support_material_synchronize_layers ? 0. : object_config.layer_height;
// Don't know the height yet.
bridging_layer->bottom_z = bridging_print_z - bridging_layer->height;
}
}
}
@@ -1775,18 +1834,33 @@ static inline SupportGeneratorLayer* detect_bottom_contacts(
// Allocate a new bottom contact layer.
SupportGeneratorLayer &layer_new = layer_storage.allocate_unguarded(SupporLayerType::BottomContact);
//w34
Layer *upper_layer = layer.upper_layer;
if (!object.config().support_material_synchronize_layers) {
layer_new.height = slicing_params.soluble_interface ?
upper_layer->height :
support_params.support_material_bottom_interface_flow.height();
layer_new.print_z = slicing_params.soluble_interface ? upper_layer->print_z :
layer.print_z + layer_new.height + slicing_params.gap_object_support;
} else {
upper_layer = sync_gap_with_object_layer(layer, slicing_params.gap_object_support, false);
layer_new.height = upper_layer->height;
layer_new.print_z = upper_layer->print_z;
}
// Grow top surfaces so that interface and support generation are generated
// with some spacing from object - it looks we don't need the actual
// top shapes so this can be done here
//FIXME calculate layer height based on the actual thickness of the layer:
// If the layer is extruded with no bridging flow, support just the normal extrusions.
layer_new.height = slicing_params.soluble_interface ?
//w34
//layer_new.height = slicing_params.soluble_interface ?
// Align the interface layer with the object's layer height.
layer.upper_layer->height :
// layer.upper_layer->height :
// Place a bridge flow interface layer or the normal flow interface layer over the top surface.
support_params.support_material_bottom_interface_flow.height();
layer_new.print_z = slicing_params.soluble_interface ? layer.upper_layer->print_z :
layer.print_z + layer_new.height + slicing_params.gap_object_support;
// support_params.support_material_bottom_interface_flow.height();
//layer_new.print_z = slicing_params.soluble_interface ? layer.upper_layer->print_z :
// layer.print_z + layer_new.height + slicing_params.gap_object_support;
layer_new.bottom_z = layer.print_z;
layer_new.idx_object_layer_below = layer_id;
layer_new.bridging = !slicing_params.soluble_interface && object.config().thick_bridges;
@@ -1805,10 +1879,20 @@ static inline SupportGeneratorLayer* detect_bottom_contacts(
assert(std::abs(diff) <= support_params.support_layer_height_min + EPSILON);
if (diff > 0.) {
// The top contact layer is below this layer. Make the bridging layer thinner to align with the existing top layer.
assert(diff < layer_new.height + EPSILON);
//w34
/* assert(diff < layer_new.height + EPSILON);
assert(layer_new.height - diff >= support_params.support_layer_height_min - EPSILON);
layer_new.print_z = top_contacts[top_idx]->print_z;
layer_new.height -= diff;
layer_new.height -= diff;*/
if (layer_new.height - diff > support_params.support_layer_height_min) {
// The top contact layer is below this layer. Make the bridging layer thinner to align with the existing top layer.
assert(diff < layer_new.height + EPSILON);
assert(layer_new.height - diff >= support_params.support_layer_height_min - EPSILON);
layer_new.print_z = top_contacts[top_idx]->print_z;
layer_new.height -= diff;
} else {
continue;
}
}
else {
// The top contact layer is above this layer. One may either make this layer thicker or thinner.