Closes #8063: ordinate dimensioning

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2026-08-05 23:41:44 +00:00 · 2026-05-15 10:20:02 -05:00
parent 101c4716ea
commit d2f18709cb
4 changed files with 32 additions and 12 deletions
@@ -28,7 +28,7 @@ DATA;
 #21=IFCSIMPLEPROPERTYTEMPLATE('1UDakJ5_f7kBhggNSW4$h5',$,'SymbolsPath','Default symbols SVG',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #22=IFCSIMPLEPROPERTYTEMPLATE('0d53LEtgLDQxnv__NfgH7i',$,'PatternsPath','Default patterns SVG',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #23=IFCSIMPLEPROPERTYTEMPLATE('26qFNMv7nCHgU6Jd7Anga5',$,'ShadingStylesPath','Default shading styles',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
-#24=IFCPROPERTYSETTEMPLATE('0I9merLinF5Ap$aZwaclgm',$,'BBIM_Dimension','',.PSET_TYPEDRIVENOVERRIDE.,'IfcAnnotation/DIMENSION,IfcAnnotation/RADIUS,IfcAnnotation/DIAMETER,IfcTypeProduct',(#25,#26,#35,#27,#28,#30,#34));
+#24=IFCPROPERTYSETTEMPLATE('0I9merLinF5Ap$aZwaclgm',$,'BBIM_Dimension','',.PSET_TYPEDRIVENOVERRIDE.,'IfcAnnotation/DIMENSION,IfcAnnotation/RADIUS,IfcAnnotation/DIAMETER,IfcTypeProduct',(#25,#26,#35,#36,#27,#28,#30,#34));
 #25=IFCSIMPLEPROPERTYTEMPLATE('1rL2AbQsXD8RbpoWH5pYOV',$,'ShowDescriptionOnly','Hide the measurement values and show only annotation description',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
 #26=IFCSIMPLEPROPERTYTEMPLATE('0SVyOfB0rC2xNfdRYf3XvY',$,'SuppressZeroInches','Suppress 0 inch values in dimension annotation text (for example: 12'' - 0" -> 12'')',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
 #27=IFCSIMPLEPROPERTYTEMPLATE('2bUmj458PBqPAtUoI3MXsb',$,'TextPrefix','Text to add before annotation measurement value',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
@@ -39,6 +39,7 @@ DATA;
 #32=IFCSIMPLEPROPERTYTEMPLATE('0gjJzDYBX8P85qn1xcAOOo',$,'Reverse_List','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
 #34=IFCSIMPLEPROPERTYTEMPLATE('1Kx4Pm9nR8vBwZqTs2uYeL',$,'Separator','Characters placed between multiple dimension values when CustomUnit has more than one unit selected (default: '' / '')',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #35=IFCSIMPLEPROPERTYTEMPLATE('3Nf6Qs1mT0pWxBuCvDyEzA',$,'SuppressZeroFeet','Suppress 0 feet in dimension annotation text (for example: 0'' - 3 1/2" -> 3 1/2")',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#36=IFCSIMPLEPROPERTYTEMPLATE('2Rg7Hn5jK4mLpNqOsVwXtY',$,'IsOrdinate','Show accumulated distance from the first vertex instead of individual segment lengths',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
 #33=IFCSIMPLEPROPERTYTEMPLATE('22TrcxF8jFNB4buSmzjGEF',$,'List_Separator','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
 ENDSEC;
 END-ISO-10303-21;
@@ -800,6 +800,7 @@ class DecoratorData:
        show_description_only = pset_data.get("ShowDescriptionOnly", False)
        suppress_zero_inches = pset_data.get("SuppressZeroInches", False)
        suppress_zero_feet = pset_data.get("SuppressZeroFeet", False)
+        is_ordinate = pset_data.get("IsOrdinate", False)
        text_prefix = pset_data.get("TextPrefix", None) or ""
        text_suffix = pset_data.get("TextSuffix", None) or ""
        custom_units = list(pset_data.get("CustomUnit", None) or [])
@@ -810,6 +811,7 @@ class DecoratorData:
            "show_description_only": show_description_only,
            "suppress_zero_inches": suppress_zero_inches,
            "suppress_zero_feet": suppress_zero_feet,
+            "is_ordinate": is_ordinate,
            "text_prefix": text_prefix,
            "text_suffix": text_suffix,
            "fill_bg": fill_bg,
@@ -723,11 +723,13 @@ class DimensionDecorator(BaseDecorator):
        if not dimension_data:
            return
        show_description_only = dimension_data["show_description_only"]
+        is_ordinate = dimension_data["is_ordinate"]
        text_prefix = dimension_data["text_prefix"]
        text_suffix = dimension_data["text_suffix"]
        viewportDrawingScale = self.get_viewport_drawing_scale(context)
        text_offset_value = viewportDrawingScale * 3

+        ordinate_total = 0.0
        for i0, i1 in indices:
            v0 = Vector(vertices[i0])
            v1 = Vector(vertices[i1])
@@ -746,10 +748,13 @@ class DimensionDecorator(BaseDecorator):
                "multiline": True,
                "text_dir": text_dir,
            }
-            base_pos = p0 + text_dir * 0.5
+            base_pos = p1 if is_ordinate else p0 + text_dir * 0.5

            if not show_description_only:
-                length = (v1 - v0).length
+                segment_length = (v1 - v0).length
+                if is_ordinate:
+                    ordinate_total += segment_length
+                length = ordinate_total if is_ordinate else segment_length
                units_to_format = dimension_data["custom_units"] if dimension_data["custom_units"] else [None]
                parts = [
                    self.format_value(
@@ -772,15 +777,18 @@ class DimensionDecorator(BaseDecorator):

            self.draw_label(
                text=text,
-                pos=base_pos + text_offset,
-                box_alignment="bottom-middle",
+                pos=base_pos + text_offset + (Vector((0, text_offset_value)) if is_ordinate else Vector((0, 0))),
+                box_alignment="bottom-right" if is_ordinate else "bottom-middle",
                multiline_to_bottom=False,
                **common_label_attrs,
            )

            if not show_description_only and description:
                self.draw_label(
-                    text=description, pos=base_pos - text_offset, box_alignment="top-middle", **common_label_attrs
+                    text=description,
+                    pos=base_pos - text_offset + (Vector((0, text_offset_value)) if is_ordinate else Vector((0, 0))),
+                    box_alignment="top-right" if is_ordinate else "top-middle",
+                    **common_label_attrs,
                )


@@ -1521,11 +1521,15 @@ class SvgWriter:
        dimension_data = DecoratorData.get_dimension_data(obj)

        assert isinstance(obj.data, bpy.types.Curve)
+        is_ordinate = dimension_data["is_ordinate"]
        for spline in obj.data.splines:
            points = self.get_spline_points(spline)
+            ordinate_total = 0.0
            for i in range(len(points) - 1):
                v0_global = matrix_world @ points[i].co.xyz
                v1_global = matrix_world @ points[i + 1].co.xyz
+                if is_ordinate:
+                    ordinate_total += (v1_global - v0_global).length
                self.draw_dimension_annotation(
                    v0_global,
                    v1_global,
@@ -1539,6 +1543,7 @@ class SvgWriter:
                    fill_bg=dimension_data["fill_bg"],
                    custom_units=dimension_data["custom_units"],
                    separator=dimension_data["separator"],
+                    distance_override=ordinate_total if is_ordinate else None,
                )

    def draw_measureit_arch_dimension_annotations(self) -> None:
@@ -1568,6 +1573,7 @@ class SvgWriter:
        fill_bg=False,
        custom_units=None,
        separator=" / ",
+        distance_override=None,
    ) -> None:
        offset = Vector([self.raw_width, self.raw_height]) / 2
        v0 = self.project_point_onto_camera(v0_global)
@@ -1580,7 +1586,10 @@ class SvgWriter:
        sheet_dimension = (end - start).length

        # if annotation can't fit offset text to the right of marker
-        text_position = mid if sheet_dimension > 5 else (end + (3 * vector.normalized()))
+        if distance_override is not None:
+            text_position = end
+        else:
+            text_position = mid if sheet_dimension > 5 else (end + (3 * vector.normalized()))
        angle = math.degrees(vector.angle_signed(Vector((1, 0))))

        line = self.svg.line(start=start, end=end, class_=" ".join(classes))
@@ -1595,7 +1604,7 @@ class SvgWriter:
        }

        if not show_description_only:
-            dimension = (v1_global - v0_global).length
+            dimension = distance_override if distance_override is not None else (v1_global - v0_global).length
            units_to_format = custom_units if custom_units else [None]
            parts = [
                helper.format_distance(
@@ -1616,8 +1625,8 @@ class SvgWriter:

        text_tags += self.create_text_tag(
            text,
-            text_position + perpendicular,
-            box_alignment="bottom-middle",
+            text_position + perpendicular + (Vector((0, 1.5)) if distance_override is not None else Vector((0, 0))),
+            box_alignment="bottom-right" if distance_override is not None else "bottom-middle",
            multiline_to_bottom=False,
            **text_tag_kwargs,
        )
@@ -1625,8 +1634,8 @@ class SvgWriter:
        if not show_description_only and dimension_text:
            text_tags += self.create_text_tag(
                dimension_text,
-                text_position - perpendicular,
-                box_alignment="top-middle",
+                text_position - perpendicular + (Vector((0, 1.5)) if distance_override is not None else Vector((0, 0))),
+                box_alignment="top-right" if distance_override is not None else "top-middle",
                multiline_to_bottom=True,
                **text_tag_kwargs,
            )