30 lines
1.5 KiB
Python
30 lines
1.5 KiB
Python
"""Clean cutout boundary triangles and taper the split thickness profile."""
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from .depth_surface import _math
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from .nodes import boolean_node, compare_node, evaluate_field, read_float_attribute, store_float_attribute
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from .smoothing import edge_boundary_field
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from .boundary_smoothing import boundary_influence
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def remove_boundary_triangles(group, geometry):
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"""Remove all-boundary triangles once on the current topology."""
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nodes, links = group.nodes, group.links
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rim = evaluate_field(group, edge_boundary_field(nodes, links), "FLOAT", "POINT")
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all_boundary = compare_node(group, "GREATER_THAN", evaluate_field(group, rim, "FLOAT", "FACE"), 0.99999)
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count = nodes.new("GeometryNodeInputMeshFaceNeighbors").outputs["Vertex Count"]
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selected = boolean_node(group, "AND", all_boundary, compare_node(group, "EQUAL", count, 3, data_type="INT"))
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delete = nodes.new("GeometryNodeDeleteGeometry")
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delete.domain, delete.mode = "FACE", "ALL"
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links.new(geometry, delete.inputs["Geometry"])
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links.new(selected, delete.inputs["Selection"])
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return delete.outputs["Geometry"]
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def taper_split_profile(group, geometry, cut_boundary):
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"""Taper the balloon profile to zero across the Depth Split cuts."""
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nodes = group.nodes
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links = group.links
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retained = _math(group, "SUBTRACT", 1, boundary_influence(group, boundary=cut_boundary))
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profile = _math(group, "MULTIPLY", read_float_attribute(group, "o_balloon"), retained)
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return store_float_attribute(group, geometry, "o_balloon", profile)
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