Add Envelope Class to manage constrained optimization

CHANGELOG.md

@@ -9,6 +9,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+* Added `Envelope` base class for masonry structure boundaries with intrados, extrados, and middle meshes
+* Added especialized `MeshEnvelope`, `ParametricEnvelope`, and `BrepEnvelope` to deal with different evelope inputs.
+* Added direct parametric envelope creation methods inheriting from `ParametricEnvelope` class:
+  * `CrossVaultEnvelope` - Creates cross vault envelopes with configurable spans and thickness
+  * `DomeEnvelope` - Creates dome envelopes with configurable radius, center, and oculus
+  * `PavillionVaultEnvelope` - Creates pavillion vault envelopes with spring angle support
+  * `PointedVaultEnvelope` - Creates pointed vault envelopes with height control parameters
+* The infrastructure around these classes has been updated to enable assigning constraints to the form diagrams.
 * Added comprehensive form diagram creation methods to `FormDiagram` class:
   * `create_cross()` - Creates cross discretisation with orthogonal arrangement and quad diagonals
   * `create_fan()` - Creates fan discretisation with straight lines to corners
@@ -25,30 +33,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Added corner detection functionality:
   * `corner_vertices()` - Identifies corner vertices on boundary with configurable angle threshold
 * Added comprehensive mesh creation functions in `diagram_rectangular.py`:
-  * `create_cross_mesh()` - Creates cross pattern meshes
-  * `create_fan_mesh()` - Creates fan pattern meshes
-  * `create_parametric_fan_mesh()` - Creates parametric fan meshes with lambda interpolation
-  * `create_cross_with_diagonal_mesh()` - Creates cross meshes with diagonals
-  * `create_ortho_mesh()` - Creates orthogonal grid meshes
 * Added circular mesh creation functions in `diagram_circular.py`:
-  * `create_circular_radial_mesh()` - Creates circular radial meshes
-  * `create_circular_radial_spaced_mesh()` - Creates hemispherically spaced circular meshes
-  * `create_circular_spiral_mesh()` - Creates circular spiral meshes
 * Added arch mesh creation functions in `diagram_arch.py`:
-  * `create_arch_linear_mesh()` - Creates arch meshes with semicircular projection
-  * `create_arch_linear_equally_spaced_mesh()` - Creates arch meshes with equally spaced nodes
 
 ### Changed
 
-* Refactored parameter passing from `xy_span=[[x0, x1], [y0, y1]]` to `x_span=(x0, x1), y_span=(y0, y1)` for better API consistency
-* Changed `center` parameter from list to tuple in circular diagram functions for immutability and consistency
-* Updated function signatures to use single-line format for Black compatibility
-* Improved code formatting and linting across all diagram generation files
-* Fixed various spelling errors and documentation formatting issues
-* Renamed `create_delta_form()` to `create_cross_with_diagonal()` for better clarity
-* Updated support assignment to use `is_support` attribute instead of deprecated `is_fixed`
-* Removed deprecated `form.parameters` usage from all form creation methods
-
 ### Removed
 
 

src/compas_tna/envelope/__init__.py

@@ -0,0 +1,20 @@
+from .envelope import Envelope
+from .brepenvelope import BrepEnvelope
+from .meshenvelope import MeshEnvelope
+from .parametricenvelope import ParametricEnvelope
+
+from .crossvault import CrossVaultEnvelope
+from .dome import DomeEnvelope
+from .pavillionvault import PavillionVaultEnvelope
+from .pointedvault import PointedVaultEnvelope
+
+__all__ = [
+    "Envelope",
+    "BrepEnvelope",
+    "MeshEnvelope",
+    "ParametricEnvelope",
+    "PavillionVaultEnvelope",
+    "PointedVaultEnvelope",
+    "DomeEnvelope",
+    "CrossVaultEnvelope",
+]

src/compas_tna/envelope/brepenvelope.py

@@ -0,0 +1,12 @@
+from compas.geometry import Brep
+from compas_tna.envelope import Envelope
+
+
+class BrepEnvelope(Envelope):
+    """An Envelope defined by a BRep at intrados, extrados, and middle."""
+
+    def __init__(self, intrados: Brep = None, extrados: Brep = None, middle: Brep = None, **kwargs):
+        super().__init__(**kwargs)
+        self.intrados = intrados
+        self.extrados = extrados
+        self.middle = middle