2025-07-01

scripts/addons/TexTools_1_6_1/utilities_bbox.py

@@ -0,0 +1,189 @@
+import math
+from mathutils import Vector
+
+
+class BBox:
+	@classmethod
+	def calc_bbox(cls, coords):
+		xmin = math.inf
+		xmax = -math.inf
+		ymin = math.inf
+		ymax = -math.inf
+
+		for x, y in coords:
+			if xmin > x:
+				xmin = x
+			if xmax < x:
+				xmax = x
+			if ymin > y:
+				ymin = y
+			if ymax < y:
+				ymax = y
+		return cls(xmin, xmax, ymin, ymax)
+
+	@classmethod
+	def calc_bbox_uv(cls, group, uv_layers, are_loops=False):
+		xmin = math.inf
+		xmax = -math.inf
+		ymin = math.inf
+		ymax = -math.inf
+
+		if not are_loops:
+			for face in group:
+				for loop in face.loops:
+					x, y = loop[uv_layers].uv
+					if xmin > x:
+						xmin = x
+					if xmax < x:
+						xmax = x
+					if ymin > y:
+						ymin = y
+					if ymax < y:
+						ymax = y
+		else:
+			for loop in group:
+				x, y = loop[uv_layers].uv
+				if xmin > x:
+					xmin = x
+				if xmax < x:
+					xmax = x
+				if ymin > y:
+					ymin = y
+				if ymax < y:
+					ymax = y
+		return cls(xmin, xmax, ymin, ymax)
+
+	@classmethod
+	def init_from_minmax(cls, min, max):
+		bbox = cls(min[0], max[0], min[1], max[1])
+		bbox.sanitize()
+		return bbox
+
+	def __init__(self, xmin=math.inf, xmax=-math.inf, ymin=math.inf, ymax=-math.inf):
+		self.xmin = xmin
+		self.xmax = xmax
+		self.ymin = ymin
+		self.ymax = ymax
+
+	def __str__(self):
+		return f"xmin={self.xmin:.6}, xmax={self.xmax:.6}, ymin={self.ymin:.6}, ymax={self.ymax:.6}, width={self.width:.6}, height={self.height:.6}"
+
+	@property
+	def is_valid(self) -> bool:
+		return (self.xmin < self.xmax) and (self.ymin < self.ymax)
+
+	@property
+	def max(self):
+		return Vector((self.xmax, self.ymax))
+
+	@property
+	def min(self):
+		return Vector((self.xmin, self.ymin))
+
+	@property
+	def left_upper(self):
+		return Vector((self.xmin, self.ymax))
+
+	@property
+	def left_bottom(self):
+		return Vector((self.xmin, self.ymin))
+
+	@property
+	def right_bottom(self):
+		return Vector((self.xmax, self.ymin))
+
+	@property
+	def right_upper(self):
+		return Vector((self.xmax, self.ymax))
+
+	@property
+	def upper(self):
+		return Vector(((self.xmin + self.xmax) * 0.5, self.ymax))
+
+	@property
+	def bottom(self):
+		return Vector(((self.xmin + self.xmax) * 0.5, self.ymin))
+
+	@property
+	def left(self):
+		return Vector((self.xmin, (self.ymin + self.ymax) * 0.5))
+
+	@property
+	def right(self):
+		return Vector((self.xmax, (self.ymin + self.ymax) * 0.5))
+
+	@property
+	def center(self):
+		return Vector(((self.xmin + self.xmax) * 0.5, (self.ymin + self.ymax) * 0.5))
+
+	@property
+	def width(self) -> float:
+		return self.xmax - self.xmin
+
+	@property
+	def height(self) -> float:
+		return self.ymax - self.ymin
+
+	@property
+	def max_lenght(self):
+		return max(self.width, self.height)
+
+	@property
+	def min_lenght(self):
+		return min(self.width, self.height)
+
+	@property
+	def half_width(self) -> float:
+		return (self.xmax - self.xmin) * 0.5
+
+	@property
+	def half_height(self) -> float:
+		return (self.ymax - self.ymin) * 0.5
+
+	@property
+	def area(self):
+		return self.width * self.height
+
+	@property
+	def is_empty(self) -> bool:
+		return (self.xmax <= self.xmin) or (self.ymax <= self.ymin)
+
+	def union(self, other):
+		if self.xmin > other.xmin:
+			self.xmin = other.xmin
+		if self.xmax < other.xmax:
+			self.xmax = other.xmax
+		if self.ymin > other.ymin:
+			self.ymin = other.ymin
+		if self.ymax < other.ymax:
+			self.ymax = other.ymax
+		return self
+
+	def sanitize(self):
+		if self.xmin > self.xmax:
+			self.xmin, self.xmax = self.xmax, self.xmin
+		if self.ymin > self.ymax:
+			self.ymin, self.ymax = self.ymax, self.ymin
+		# assert self.is_valid
+		return self
+
+	def do_minmax_v(self, xy):
+		if xy[0] < self.xmin:
+			self.xmin = xy[0]
+		if xy[0] > self.xmax:
+			self.xmax = xy[0]
+		if xy[1] < self.ymin:
+			self.ymin = xy[1]
+		if xy[1] > self.ymax:
+			self.ymax = xy[1]
+
+	def update(self, coords):
+		for x, y in coords:
+			if x < self.xmin:
+				self.xmin = x
+			if x > self.xmax:
+				self.xmax = x
+			if y < self.ymin:
+				self.ymin = y
+			if y > self.ymax:
+				self.ymax = y