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39 lines
2.2 KiB
C++
39 lines
2.2 KiB
C++
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/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#ifndef IFCVIEWER_FULL_MEASUREMENT_H
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#define IFCVIEWER_FULL_MEASUREMENT_H
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#include <cstdint>
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#include <vector>
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class ViewportWindow;
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// Sum of mesh-local volumes (m³) of every instance whose object_id is in
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// `object_ids`. Groups by (model, mesh) so each unique mesh is read back
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// from the GPU at most once per call; instances of the same mesh are scaled
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// by |det(placement_3x3)| to pick up mapped-item scale/mirror. Volume is
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// taken as the absolute value of the signed-tetrahedra sum, so winding
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// convention does not matter. Returns 0.0 for empty input or when nothing
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// resolves. Recomputes from scratch on every call — no cache.
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double volumeOfObjects(ViewportWindow& vp,
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const std::vector<uint32_t>& object_ids);
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#endif // IFCVIEWER_FULL_MEASUREMENT_H
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