Merge pull request #7207 from falken10vdl/unwrap-ifcreferenceimage

Add unwrapping of UV for IfcReferenceImage
This commit is contained in:
falken10vdl
2025-12-16 09:45:09 +01:00
committed by GitHub
5 changed files with 403 additions and 9 deletions
+42
View File
@@ -889,6 +889,48 @@ class IfcImporter:
obj, tool.Loader.apply_blender_offset_to_matrix_world(obj, self.get_element_matrix(element))
)
if element.is_a("IfcAnnotation") and getattr(element, "ObjectType", None) == "IMAGE":
image = None
if obj.data and obj.data.materials and obj.data.materials[0]:
material = obj.data.materials[0]
if material.use_nodes and material.node_tree:
for node in material.node_tree.nodes:
if node.type == "TEX_IMAGE" and node.image:
image = node.image
break
if image:
import bmesh
bm = bmesh.new()
bm.from_mesh(obj.data)
if not bm.loops.layers.uv:
uv_layer = bm.loops.layers.uv.new()
else:
uv_layer = bm.loops.layers.uv.active
if bm.verts:
min_x = min(v.co.x for v in bm.verts)
max_x = max(v.co.x for v in bm.verts)
min_y = min(v.co.y for v in bm.verts)
max_y = max(v.co.y for v in bm.verts)
width = max_x - min_x
height = max_y - min_y
for face in bm.faces:
for loop in face.loops:
vert = loop.vert
u = (vert.co.x - min_x) / width if width > 0 else 0.5
v = (vert.co.y - min_y) / height if height > 0 else 0.5
u = max(0.0, min(1.0, u))
v = max(0.0, min(1.0, v))
loop[uv_layer].uv = (u, v)
bm.to_mesh(obj.data)
bm.free()
obj.data.update()
return obj
def load_existing_meshes(self) -> None:
@@ -3716,18 +3716,100 @@ class AddReferenceImage(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
options={"SKIP_SAVE"},
)
x_length: bpy.props.FloatProperty(
name="X Length",
description="Width of the reference image in project units",
default=1.0,
min=0.001,
soft_min=0.01,
precision=3,
)
y_length: bpy.props.FloatProperty(
name="Y Length",
description="Height of the reference image in project units",
default=1.0,
min=0.001,
soft_min=0.01,
precision=3,
)
show_dimensions_dialog: bpy.props.BoolProperty(default=False, options={"HIDDEN", "SKIP_SAVE"})
def draw(self, context):
layout = self.layout
if Path(tool.Ifc.get_path()).is_file():
layout.prop(self, "use_relative_path")
if getattr(self, "show_dimensions_dialog", False):
if tool.Ifc.get():
length_unit = ifcopenshell.util.unit.get_project_unit(tool.Ifc.get(), "LENGTHUNIT")
if length_unit:
unit_name = ifcopenshell.util.unit.get_full_unit_name(length_unit).lower()
else:
unit_name = "project units"
layout.label(text=f"Set Reference Image Dimensions (in {unit_name}):")
else:
layout.label(text="Set Reference Image Dimensions (in project units):")
layout.separator()
layout.prop(self, "x_length")
layout.prop(self, "y_length")
else:
self.use_relative_path = False
layout.label(text="Save the .ifc file first ")
layout.label(text="to use relative paths.")
layout.prop(self, "override_existing_image")
layout.prop(self, "use_existing_object_by_name")
if Path(tool.Ifc.get_path()).is_file():
layout.prop(self, "use_relative_path")
else:
self.use_relative_path = False
layout.label(text="Save the .ifc file first ")
layout.label(text="to use relative paths.")
layout.prop(self, "override_existing_image")
layout.prop(self, "use_existing_object_by_name")
def invoke(self, context, event):
if not getattr(self, "show_dimensions_dialog", False):
context.window_manager.fileselect_add(self)
return {"RUNNING_MODAL"}
else:
return context.window_manager.invoke_props_dialog(self)
def execute(self, context):
if not getattr(self, "show_dimensions_dialog", False):
abs_path = Path(self.filepath).absolute().resolve()
if self.override_existing_image:
params = {"check_existing": True, "force_reload": True}
else:
params = {"check_existing": False}
try:
image = load_image(abs_path.name, str(abs_path.parent), **params)
image_width_px = image.size[0]
image_height_px = image.size[1]
aspect_ratio = image_width_px / image_height_px
if aspect_ratio >= 1.0:
self.x_length = 1.0
self.y_length = 1.0 / aspect_ratio
else:
self.x_length = aspect_ratio
self.y_length = 1.0
bpy.data.images.remove(image)
except Exception as e:
self.report({"ERROR"}, f"Failed to load image: {str(e)}")
return {"CANCELLED"}
self.show_dimensions_dialog = True
return context.window_manager.invoke_props_dialog(self)
return self._execute(context)
def _execute(self, context):
space = tool.Blender.get_view3d_space()
if space.shading.color_type != "TEXTURE":
space.shading.color_type = "TEXTURE"
self.report(
{"WARNING"},
'"Object Color" for Viewport Shading: Solid changed to "Texture" to see the reference image properly.',
)
abs_path = Path(self.filepath).absolute().resolve()
image_filepath = Path(tool.Ifc.get_uri(self.filepath, use_relative_path=self.use_relative_path))
ifc_file = tool.Ifc.get()
@@ -3736,13 +3818,39 @@ class AddReferenceImage(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
params = {"check_existing": True, "force_reload": True}
else:
params = {"check_existing": False}
image = load_image(abs_path.name, abs_path.parent, **params)
image = load_image(abs_path.name, str(abs_path.parent), **params)
def bm_add_image_plane(mesh):
bm = tool.Blender.get_bmesh_for_mesh(mesh, clean=True)
plane_scale = (Vector(image.size) / min(image.size)).to_3d()
unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
plane_scale = Vector((self.x_length * unit_scale / 2.0, self.y_length * unit_scale / 2.0, 1.0))
matrix = Matrix.LocRotScale(None, None, plane_scale)
bmesh.ops.create_grid(bm, x_segments=1, y_segments=1, size=1, matrix=matrix, calc_uvs=False)
if not bm.loops.layers.uv:
uv_layer = bm.loops.layers.uv.new()
else:
uv_layer = bm.loops.layers.uv.active
min_x = min(v.co.x for v in bm.verts)
max_x = max(v.co.x for v in bm.verts)
min_y = min(v.co.y for v in bm.verts)
max_y = max(v.co.y for v in bm.verts)
width = max_x - min_x
height = max_y - min_y
for face in bm.faces:
for loop in face.loops:
vert = loop.vert
u = (vert.co.x - min_x) / width if width > 0 else 0.5
v = (vert.co.y - min_y) / height if height > 0 else 0.5
u = max(0.0, min(1.0, u))
v = max(0.0, min(1.0, v))
loop[uv_layer].uv = (u, v)
tool.Blender.apply_bmesh(mesh, bm)
if self.use_existing_object_by_name:
@@ -3763,6 +3871,23 @@ class AddReferenceImage(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
)
tool.Blender.remove_data_block(temp_mesh)
element = tool.Ifc.get_entity(obj)
if element and isinstance(obj.data, bpy.types.Mesh):
representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
if representation and representation.Items:
item_id = representation.Items[0].id()
num_faces = len(obj.data.polygons)
obj.data["ios_item_ids"] = [item_id] * num_faces
tool.Blender.Attribute.fill_attribute(obj.data, "ios_item_ids", "FACE", "INT", [item_id] * num_faces)
for item in representation.Items:
if item.is_a("IfcPolygonalFaceSet") and item.Coordinates:
new_coords = []
for vertex in obj.data.vertices:
co = obj.matrix_world @ vertex.co
new_coords.append([co.x, co.y, co.z])
item.Coordinates.CoordList = new_coords
tool.Blender.set_active_object(obj)
material = bpy.data.materials.new(name=image_filepath.stem)
@@ -3803,6 +3928,8 @@ class AddReferenceImage(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
tool.Style.reload_material_from_ifc(material)
tool.Geometry.record_object_materials(obj)
return {"FINISHED"}
class ConvertSVGToDXF(bpy.types.Operator):
bl_idname = "bim.convert_svg_to_dxf"
@@ -42,6 +42,7 @@ classes = (
operator.ExportIFC,
operator.FlipClippingPlane,
operator.IFCFileHandlerOperator,
operator.ImageScalingTool,
operator.LinkIfc,
operator.LoadLink,
operator.LoadLinkedProject,
@@ -2896,3 +2896,201 @@ class ClearMeasurement(bpy.types.Operator):
MeasureDecorator.uninstall()
tool.Blender.update_viewport()
return {"FINISHED"}
class ImageScalingTool(bpy.types.Operator, PolylineOperator):
bl_idname = "bim.image_scaling_tool"
bl_label = "Image Scaling Tool"
bl_options = {"REGISTER", "UNDO"}
@classmethod
def poll(cls, context):
return context.space_data.type == "VIEW_3D"
def __init__(self, *args, **kwargs):
bpy.types.Operator.__init__(self, *args, **kwargs)
PolylineOperator.__init__(self)
self.input_options = ["DISTANCE"]
self.input_ui = tool.Polyline.create_input_ui(input_options=self.input_options)
self.selected_points = []
self.target_object = None
self.current_distance_value = ""
self.is_typing_distance = False
self.calculated_distance = 0.0
if tool.Ifc.get():
self.unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
else:
self.unit_scale = tool.Blender.get_unit_scale()
def modal(self, context, event):
if not self.target_object or not context.active_object or context.active_object != self.target_object:
self.report({"ERROR"}, "Image annotation was deselected. Tool cancelled.")
return self.cancel_tool(context)
PolylineDecorator.update(event, self.tool_state, self.input_ui, self.snapping_points[0])
tool.Blender.update_viewport()
self.handle_lock_axis(context, event)
if event.type in {"MIDDLEMOUSE", "WHEELUPMOUSE", "WHEELDOWNMOUSE"}:
self.handle_mouse_move(context, event)
return {"PASS_THROUGH"}
self.handle_custom_instructions(context)
self.handle_mouse_move(context, event)
self.choose_axis(event, z=True)
self.choose_plane(event)
self.handle_snap_selection(context, event)
if event.type == "LEFTMOUSE" and event.value == "PRESS":
if len(self.selected_points) < 2:
snapped_point = self.snapping_points[0]
point_3d = snapped_point["point"].copy()
self.selected_points.append(point_3d)
if len(self.selected_points) == 2:
self.calculate_distance()
self.current_distance_value = f"{self.calculated_distance:.3f}"
self.is_typing_distance = False
self.input_ui.set_value("DISTANCE", self.calculated_distance)
elif len(self.selected_points) == 2:
if event.type in {"RET", "NUMPAD_ENTER"} and event.value == "PRESS":
return self.apply_scaling(context)
if event.unicode and event.unicode.isprintable() and event.value == "PRESS":
if event.unicode.isdigit() or event.unicode == ".":
if not self.is_typing_distance:
self.current_distance_value = event.unicode
self.is_typing_distance = True
else:
self.current_distance_value += event.unicode
distance_value = float(self.current_distance_value)
self.input_ui.set_value("DISTANCE", distance_value)
elif event.type in {"BACK_SPACE", "DEL"} and event.value == "PRESS":
if len(self.current_distance_value) > 0:
self.current_distance_value = self.current_distance_value[:-1]
distance_value = (
float(self.current_distance_value) if self.current_distance_value else self.calculated_distance
)
self.input_ui.set_value("DISTANCE", distance_value)
self.handle_keyboard_input(context, event)
result = self.handle_cancelation(context, event)
if result is not None:
return result
return {"RUNNING_MODAL"}
def invoke(self, context, event):
active_obj = context.active_object
self.target_object = active_obj
super().invoke(context, event)
return {"RUNNING_MODAL"}
def cancel_tool(self, context):
context.workspace.status_text_set(text=None)
if hasattr(self, "tool_state"):
self.tool_state.plane_method = None
PolylineDecorator.uninstall()
tool.Blender.update_viewport()
return {"CANCELLED"}
def handle_custom_instructions(self, context):
if len(self.selected_points) == 0:
instruction_text = "Click First Point on Image"
elif len(self.selected_points) == 1:
instruction_text = "Click Second Point on Image"
elif len(self.selected_points) == 2:
if self.is_typing_distance:
instruction_text = f"Distance: {self.current_distance_value} - Press Enter to Apply"
else:
instruction_text = f"Measured: {self.calculated_distance:.3f} - Type New Distance or Press Enter"
else:
instruction_text = "Image Scaling Tool"
context.workspace.status_text_set(text=instruction_text)
def calculate_distance(self):
if len(self.selected_points) == 2:
point1 = self.selected_points[0]
point2 = self.selected_points[1]
distance_3d = (point2 - point1).length
self.calculated_distance = distance_3d / self.unit_scale
def apply_scaling(self, context):
if len(self.selected_points) != 2:
self.report({"ERROR"}, "Two points must be selected")
return {"CANCELLED"}
target_distance = float(self.current_distance_value)
if target_distance <= 0:
self.report({"ERROR"}, "Distance must be positive")
return {"CANCELLED"}
if self.calculated_distance <= 0:
self.report({"ERROR"}, "Selected points are too close together")
return {"CANCELLED"}
scale_factor = target_distance / self.calculated_distance
if self.target_object:
import bmesh
mesh = self.target_object.data
bm = bmesh.new()
bm.from_mesh(mesh)
bmesh.ops.scale(bm, vec=(scale_factor, scale_factor, 1.0), verts=bm.verts)
if bm.loops.layers.uv:
uv_layer = bm.loops.layers.uv.active
min_x = min(v.co.x for v in bm.verts)
max_x = max(v.co.x for v in bm.verts)
min_y = min(v.co.y for v in bm.verts)
max_y = max(v.co.y for v in bm.verts)
width = max_x - min_x
height = max_y - min_y
for face in bm.faces:
for loop in face.loops:
vert = loop.vert
u = (vert.co.x - min_x) / width if width > 0 else 0.5
v = (vert.co.y - min_y) / height if height > 0 else 0.5
u = max(0.0, min(1.0, u))
v = max(0.0, min(1.0, v))
loop[uv_layer].uv = (u, v)
bm.to_mesh(mesh)
bm.free()
mesh.update()
element = tool.Ifc.get_entity(self.target_object)
if element and element.Representation:
for representation in element.Representation.Representations:
for item in representation.Items:
if item.is_a("IfcPolygonalFaceSet") and item.Coordinates:
new_coords = []
for vertex in mesh.vertices:
co = self.target_object.matrix_world @ vertex.co
new_coords.append([co.x, co.y, co.z])
item.Coordinates.CoordList = new_coords
self.report({"INFO"}, f"Applied scale factor: {scale_factor:.4f}")
context.workspace.status_text_set(text=None)
self.tool_state.plane_method = None
PolylineDecorator.uninstall()
tool.Blender.update_viewport()
return {"FINISHED"}
@@ -38,6 +38,7 @@ class ExploreTool(bpy.types.WorkSpaceTool):
("bim.explore_hotkey", {"type": "F", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_F")]}),
("bim.explore_hotkey", {"type": "C", "value": "PRESS", "alt": True}, {"properties": [("hotkey", "A_C")]}),
("bim.explore_hotkey", {"type": "M", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_M")]}),
("bim.explore_hotkey", {"type": "S", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_S")]}),
)
def draw_settings(context, layout, ws_tool):
@@ -71,6 +72,14 @@ class ExploreTool(bpy.types.WorkSpaceTool):
row = layout.row(align=True)
op = row.operator("bim.clear_measurement", text="", icon="X")
row = layout.row(align=True)
row.label(text="", icon="EVENT_SHIFT")
row.label(text="", icon="EVENT_S")
row = layout.row(align=True)
op = row.operator("bim.explore_hotkey", text="Image Scaling Tool", icon="IMAGE_PLANE")
op.hotkey = "S_S"
op.description = "Scale Image Annotation. Allows to scale an IfcReferenceImage. Select image, select tool. Check lower left corner instructions to select two points and provide real distance between them"
class ExploreHotkey(bpy.types.Operator):
bl_idname = "bim.explore_hotkey"
@@ -110,3 +119,20 @@ class ExploreHotkey(bpy.types.Operator):
bpy.ops.bim.measure_face_area_tool("INVOKE_DEFAULT")
else:
bpy.ops.bim.measure_tool("INVOKE_DEFAULT", measure_type=measure_type)
def hotkey_S_S(self):
active_obj = bpy.context.active_object
selected_objects = tool.Blender.get_selected_objects()
element = tool.Ifc.get_entity(active_obj) if active_obj else None
if (
not active_obj
or not element
or not element.is_a("IfcAnnotation")
or len(selected_objects) != 1
or not tool.Drawing.is_annotation_object_type(element, "IMAGE")
):
self.report({"ERROR"}, "Please select one image annotation first.")
return
bpy.ops.bim.image_scaling_tool("INVOKE_DEFAULT")