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Fixes for render bugs

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This commit is contained in:
Bruno Postle 2026-04-22 00:22:35 +01:00
parent f3288a232e
commit 95adb177f6
1 changed files with 12 additions and 5 deletions
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17
ifcurl/render.py
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@ -42,8 +42,11 @@ try:
import numpy as np import numpy as np
import pyvista as pv import pyvista as pv
# Resolve pyvista's lazy-loaded Plotter class at import time so that
# concurrent requests in a threadpool don't race on the lazy __getattr__.
_Plotter = pv.Plotter
_HAS_PYVISTA = True _HAS_PYVISTA = True
except ImportError: except (ImportError, AttributeError):
_HAS_PYVISTA = False _HAS_PYVISTA = False
# Highlight colour used in 'highlight' visibility mode (orange). # Highlight colour used in 'highlight' visibility mode (orange).
@ -195,7 +198,7 @@ def _render_iterator(
scale: float | None, scale: float | None,
) -> bytes: ) -> bytes:
"""Drive a geometry iterator into a pyvista plotter and return PNG bytes.""" """Drive a geometry iterator into a pyvista plotter and return PNG bytes."""
plotter = pv.Plotter(off_screen=True, window_size=(1280, 960)) plotter = _Plotter(off_screen=True, window_size=(1280, 960))
plotter.background_color = "white" plotter.background_color = "white"
frozen_ids = frozenset(selection_ids) if selection_ids else None frozen_ids = frozenset(selection_ids) if selection_ids else None
@ -213,6 +216,9 @@ def _render_iterator(
else: else:
plotter.reset_camera() plotter.reset_camera()
plotter.camera.up = (0, 0, 1) plotter.camera.up = (0, 0, 1)
if scale is not None:
plotter.camera.parallel_projection = True
plotter.camera.parallel_scale = scale
tmp_fd, tmp_path = tempfile.mkstemp(suffix=".png") tmp_fd, tmp_path = tempfile.mkstemp(suffix=".png")
os.close(tmp_fd) os.close(tmp_fd)
@ -425,9 +431,10 @@ def render(
# --- Regular element rendering --- # --- Regular element rendering ---
settings = _build_geom_settings(model) settings = _build_geom_settings(model)
if selector_elements is not None: if selector_elements is not None and not selector_elements:
if not selector_elements: raise ValueError(f"Selector {selector!r} matched only type entities")
raise ValueError(f"Selector {selector!r} matched only type entities")
if selector_elements is not None and visibility == "isolate":
iterator = ifcopenshell.geom.iterator( iterator = ifcopenshell.geom.iterator(
settings, model, multiprocessing.cpu_count(), include=selector_elements settings, model, multiprocessing.cpu_count(), include=selector_elements
) )