You can now specify custom min/max for quantitative legends

src/bonsai/bonsai/bim/module/search/operator.py

@@ -264,8 +264,10 @@ class ColourByProperty(Operator):
         colourscheme = {}
 
         obj_values = {}
-        min_value = None
-        max_value = None
+        min_mode = props.min_mode
+        max_mode = props.max_mode
+        min_value = props.min_value if min_mode == "MANUAL" else None
+        max_value = props.max_value if max_mode == "MANUAL" else None
 
         if is_qualitative and len(props.colourscheme):
             colourscheme = {cs.name: {"colour": cs.colour[0:3], "total": 0} for cs in props.colourscheme}
@@ -292,10 +294,12 @@ class ColourByProperty(Operator):
                 else:
                     try:
                         value = float(value)
-                        if min_value is None or value < min_value:
-                            min_value = value
-                        if max_value is None or value > max_value:
-                            max_value = value
+                        if min_mode == "AUTO":
+                            if min_value is None or value < min_value:
+                                min_value = value
+                        if max_mode == "AUTO":
+                            if max_value is None or value > max_value:
+                                max_value = value
                         obj_values[obj] = value
                     except:
                         obj.color = (0, 0, 0, 1)

src/bonsai/bonsai/bim/module/search/prop.py

@@ -142,6 +142,22 @@ class BIMSearchProperties(PropertyGroup):
         ],
         name="Palette",
     )
+    min_mode: EnumProperty(
+        items=[
+            ("AUTO", "Automatic", "Automatically determine the minimum value"),
+            ("MANUAL", "Manual", "Manually specify the minimum value"),
+        ],
+        name="Min Mode",
+    )
+    max_mode: EnumProperty(
+        items=[
+            ("AUTO", "Automatic", "Automatically determine the maximum value"),
+            ("MANUAL", "Manual", "Manually specify the maximum value"),
+        ],
+        name="Max Mode",
+    )
+    min_value: FloatProperty(name="Min Value", default=100)
+    max_value: FloatProperty(name="Max Value", default=100)
     colourscheme: CollectionProperty(type=BIMColour)
     active_colourscheme_index: IntProperty(name="Active Colourscheme Index")
     filter_type: StringProperty(name="Filter Type")

src/bonsai/bonsai/bim/module/search/ui.py

@@ -88,6 +88,17 @@ class BIM_PT_colour_by_property(Panel):
         row = self.layout.row()
         row.prop(props, "palette")
 
+        if props.palette not in ("tab10", "paired"):
+            row = self.layout.row(align=True)
+            row.prop(props, "min_mode", text="Min Value")
+            if props.min_mode == "MANUAL":
+                row.prop(props, "min_value", text="")
+
+            row = self.layout.row(align=True)
+            row.prop(props, "max_mode", text="Max Value")
+            if props.max_mode == "MANUAL":
+                row.prop(props, "max_value", text="")
+
         row = self.layout.row(align=True)
         row.operator("bim.colour_by_property", icon="BRUSH_DATA")
         row.operator("bim.reset_object_colours")