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Enhance label rendering in BoundingBoxDecorator to prevent text overlaps

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falken10
2025-06-25 01:39:36 +02:00
committed by Bruno Perdigão
parent a686d70908
commit f67dca8de0
1 changed files with 69 additions and 9 deletions
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src/bonsai/bonsai/bim/module/model/decorator.py
+69 -9
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@@ -1304,7 +1304,6 @@ class BoundingBoxDecorator:
region = bpy.context.region
rv3d = bpy.context.region_data
# Preferences
addon_prefs = tool.Blender.get_addon_preferences()
font_id = 0
font_size = tool.Blender.scale_font_size(12)
@@ -1315,18 +1314,79 @@ class BoundingBoxDecorator:
blf.color(font_id, *color)
closest_indices = self.find_closest_trihedron(corners, edges, region, rv3d)
for axis in "XYZ":
screen_coords = {}
for axis_idx, axis in enumerate("XYZ"):
pair = closest_indices[axis]
if pair is not None:
i1, i2 = pair
center = (corners[i1] + corners[i2]) / 2
offset_factor = 0.6 - (axis_idx * 0.1)
center = corners[i1].lerp(corners[i2], offset_factor)
value = getattr(dims, axis.lower())
screen_co = location_3d_to_region_2d(region, rv3d, center)
if screen_co is not None:
blf.position(font_id, screen_co.x, screen_co.y, 0)
blf.color(font_id, 1, 1, 1, 1)
value_str = f"D{axis.lower()}: " + format_distance(value, hide_units=False)
text_length = blf.dimensions(font_id, value_str)
self.draw_text_background(context, screen_co, text_length)
blf.draw(font_id, value_str)
screen_coords[axis] = (screen_co, value)
self.adjust_overlapping_labels(screen_coords)
for axis, (screen_co, value) in screen_coords.items():
blf.position(font_id, screen_co.x, screen_co.y, 0)
blf.color(font_id, 1, 1, 1, 1)
value_str = f"D{axis.lower()}: " + format_distance(value, hide_units=False)
text_length = blf.dimensions(font_id, value_str)
self.draw_text_background(context, screen_co, text_length)
blf.draw(font_id, value_str)
blf.disable(font_id, blf.SHADOW)
def adjust_overlapping_labels(self, screen_coords):
font_id = 0
text_dimensions = {}
for axis, (screen_co, value) in screen_coords.items():
value_str = f"D{axis.lower()}: " + format_distance(value, hide_units=False)
text_dimensions[axis] = blf.dimensions(font_id, value_str)
min_spacing = 5
axes = list(screen_coords.keys())
for i in range(len(axes)):
for j in range(i + 1, len(axes)):
axis1, axis2 = axes[i], axes[j]
co1, _ = screen_coords[axis1]
co2, _ = screen_coords[axis2]
dim1 = text_dimensions[axis1]
dim2 = text_dimensions[axis2]
bounds1 = {
"left": co1.x - min_spacing,
"right": co1.x + dim1[0] + min_spacing,
"top": co1.y + dim1[1] + min_spacing,
"bottom": co1.y - min_spacing
}
bounds2 = {
"left": co2.x - min_spacing,
"right": co2.x + dim2[0] + min_spacing,
"top": co2.y + dim2[1] + min_spacing,
"bottom": co2.y - min_spacing
}
if (bounds1["left"] < bounds2["right"] and bounds1["right"] > bounds2["left"] and
bounds1["bottom"] < bounds2["top"] and bounds1["top"] > bounds2["bottom"]):
x_overlap = min(bounds1["right"], bounds2["right"]) - max(bounds1["left"], bounds2["left"])
y_overlap = min(bounds1["top"], bounds2["top"]) - max(bounds1["bottom"], bounds2["bottom"])
if x_overlap < y_overlap:
if co1.x < co2.x:
co1.x -= x_overlap / 2 + min_spacing
co2.x += x_overlap / 2 + min_spacing
else:
co1.x += x_overlap / 2 + min_spacing
co2.x -= x_overlap / 2 + min_spacing
else:
if co1.y < co2.y:
co1.y -= y_overlap / 2 + min_spacing
co2.y += y_overlap / 2 + min_spacing
else:
co1.y += y_overlap / 2 + min_spacing
co2.y -= y_overlap / 2 + min_spacing