brep to cloud component (#107)

* WIP-ADD: create component for bre2cloud conversion

* FIX-UPDATE: DFMeshToCloud component returns one single point cloud

* WIP: working on corrections

* CAP-FIX: finsihed cleaning minor + docuemtnation

---------

Co-authored-by: Andrea Settimi <[email protected]>

doc/gh_DFBrepToCloud.rst

@@ -0,0 +1,8 @@
+.. image:: ../src/gh/components/DF_brep_to_cloud/icon.png
+    :align: left
+    :width: 40px
+
+``DFBrepToCloud`` component
+===========================
+
+.. ghcomponent_to_rst:: ../src/gh/components/DF_brep_to_cloud

doc/gh_components.rst

@@ -76,6 +76,11 @@ DF has a Grasshopper_ plugin with a set of components that allows the user to in
      - .. image:: ../src/gh/components/DF_colorize_cloud/icon.png
      - `gh_DFColorizeCloud <gh_DFColorizeCloud.html>`_
 
+   * - .. image:: ../src/gh/components/DF_brep_to_cloud/icon.png
+     - `gh_DFBrepToCloud <gh_DFBrepToCloud.html>`_
+     - 
+     -
+
 
 
 .. toctree::
@@ -107,4 +112,5 @@ DF has a Grasshopper_ plugin with a set of components that allows the user to in
    gh_DFXMLExporter
    gh_DFPreviewAssembly
    gh_DFRemoveBeam
-   gh_DFColorizeCloud
+   gh_DFColorizeCloud
+   gh_DFBrepToCloud

src/gh/components/DF_brep_to_cloud/code.py

@@ -0,0 +1,38 @@
+#! python3
+
+import Rhino
+from ghpythonlib.componentbase import executingcomponent as component
+from Grasshopper.Kernel import GH_RuntimeMessageLevel as RML
+
+from diffCheck import df_cvt_bindings
+import System
+
+
+class DFBrepToCloud(component):
+    def RunScript(self,
+            i_breps: System.Collections.Generic.IList[Rhino.Geometry.Brep],
+            i_num_points: int):
+        self.meshing_parameters = Rhino.Geometry.MeshingParameters.DefaultAnalysisMesh
+
+        mesh_versions = []
+
+        if i_breps is None or i_num_points is None:
+            return None
+
+        for i_brep in i_breps:
+            if not isinstance(i_brep, Rhino.Geometry.Brep):
+                self.AddRuntimeMessage(RML.Warning, "Please provide a brep to convert to a cloud")
+                return None
+            meshes = Rhino.Geometry.Mesh.CreateFromBrep(i_brep, self.meshing_parameters)
+            for mesh in meshes:
+                mesh_versions.append(mesh)
+
+        unified_mesh = mesh_versions[0]
+        unified_mesh.Append(mesh_versions)
+        unified_mesh.Faces.ConvertQuadsToTriangles()
+        df_mesh = df_cvt_bindings.cvt_rhmesh_2_dfmesh(unified_mesh)
+        df_cloud = df_mesh.sample_points_uniformly(i_num_points)
+        rgpoints = [Rhino.Geometry.Point3d(pt[0], pt[1], pt[2]) for pt in df_cloud.points]
+        rh_cloud = Rhino.Geometry.PointCloud(rgpoints)
+        print(rh_cloud)
+        return [rh_cloud]

src/gh/components/DF_brep_to_cloud/metadata.json

@@ -0,0 +1,52 @@
+{
+    "name": "DFBrepToMesh",
+    "nickname": "DFBrepToMesh",
+    "category": "diffCheck",
+    "subcategory": "Cloud",
+    "description": "Create unique point cloud from list of breps.",
+    "exposure": 4,
+    "instanceGuid": "0194cbfc-1a6d-44a7-ae5d-7495db20edbe",
+    "ghpython": {
+        "hideOutput": true,
+        "hideInput": true,
+        "isAdvancedMode": true,
+        "marshalOutGuids": true,
+        "iconDisplay": 2,
+        "inputParameters": [
+            {
+                "name": "i_breps",
+                "nickname": "i_breps",
+                "description": "The breps to convert to point cloud.",
+                "optional": false,
+                "allowTreeAccess": false,
+                "showTypeHints": true,
+                "scriptParamAccess": "list",
+                "wireDisplay": "default",
+                "sourceCount": 0,
+                "typeHintID": "brep"
+            },
+            {
+                "name": "i_num_points",
+                "nickname": "i_num_points",
+                "description": "The number of points in the new point cloud.",
+                "optional": false,
+                "allowTreeAccess": false,
+                "showTypeHints": true,
+                "scriptParamAccess": "item",
+                "wireDisplay": "default",
+                "sourceCount": 0,
+                "typeHintID": "int"
+            }
+        ],
+        "outputParameters": [
+            {
+                "name": "o_pointcloud",
+                "nickname": "o_pointcloud",
+                "description": "The generated point cloud.",
+                "optional": false,
+                "sourceCount": 0,
+                "graft": false
+            }
+        ]
+    }
+}

src/gh/components/DF_mesh_to_cloud/code.py

@@ -1,7 +1,8 @@
 #! python3
 
+import System
 
-import Rhino.Geometry as rg
+import Rhino
 from ghpythonlib.componentbase import executingcomponent as component
 
 
@@ -12,13 +13,26 @@
 
 class DFMeshToCloud(component):
     def RunScript(self,
-            i_mesh: rg.Mesh,
-            i_points: int) -> rg.PointCloud:
-        df_mesh = diffCheck.df_cvt_bindings.cvt_rhmesh_2_dfmesh(i_mesh)
-        df_cloud = df_mesh.sample_points_uniformly(i_points)
+        i_meshes:System.Collections.Generic.IList[Rhino.Geometry.Mesh],
+        i_points: int) -> Rhino.Geometry.PointCloud:
+
+        if i_meshes is None:
+            return None
+
+        if i_points is None:
+            i_points = 1000
 
+        rh_mesh = i_meshes[0]
+        for i  in range(1, len(i_meshes)):
+            if i_meshes[i] is None:
+                return None
+            rh_mesh.Append(i_meshes[i])
+        rh_mesh.Faces.ConvertQuadsToTriangles()
+
+        df_mesh = diffCheck.df_cvt_bindings.cvt_rhmesh_2_dfmesh(rh_mesh)
+        df_cloud = df_mesh.sample_points_uniformly(i_points)
+        rgpoints = [Rhino.Geometry.Point3d(p[0], p[1], p[2]) for p in df_cloud.points]
         # convert the df_cloud to a rhino cloud
-        rgpoints = [rg.Point3d(pt[0], pt[1], pt[2]) for pt in df_cloud.points]
-        rh_cloud = rg.PointCloud(rgpoints)
+        rh_cloud = Rhino.Geometry.PointCloud(rgpoints)
 
         return [rh_cloud]

src/gh/components/DF_mesh_to_cloud/metadata.json

@@ -14,13 +14,13 @@
         "iconDisplay": 2,
         "inputParameters": [
             {
-                "name": "i_mesh",
-                "nickname": "i_mesh",
-                "description": "Mesh to sample into a point cloud.",
+                "name": "i_meshes",
+                "nickname": "i_meshes",
+                "description": "Meshes to sample into a point cloud.",
                 "optional": true,
                 "allowTreeAccess": true,
                 "showTypeHints": true,
-                "scriptParamAccess": "item",
+                "scriptParamAccess": "list",
                 "wireDisplay": "default",
                 "sourceCount": 0,
                 "typeHintID": "mesh"