fix #5043. Add property "apply modifiers" and "select UVMap by" for Node "Find UV Coord on Surface"

docs/nodes/object_nodes/points_from_uv_to_mesh.rst

@@ -0,0 +1,33 @@
+Find UV Coord on Surface
+========================
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/bc7f7630-6e01-4356-a214-af4546a8b04b
+  :target: https://github.com/nortikin/sverchok/assets/14288520/bc7f7630-6e01-4356-a214-af4546a8b04b
+
+Description
+-----------
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/63b0de53-4ba2-4097-9389-9ecf9c09a665
+  :target: https://github.com/nortikin/sverchok/assets/14288520/63b0de53-4ba2-4097-9389-9ecf9c09a665
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/248f59bf-d468-415b-a7ec-0ef04d4f014e
+  :target: https://github.com/nortikin/sverchok/assets/14288520/248f59bf-d468-415b-a7ec-0ef04d4f014e
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/445fde34-d6a1-4365-80dd-0b0e6fb32501
+  :target: https://github.com/nortikin/sverchok/assets/14288520/445fde34-d6a1-4365-80dd-0b0e6fb32501
+
+If you see this exception then check UV Map property. Here must at least one element:
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/630537e2-65b5-4501-aba9-ff27c6d16e88
+  :target: https://github.com/nortikin/sverchok/assets/14288520/630537e2-65b5-4501-aba9-ff27c6d16e88
+
+Property
+--------
+
+Examples
+--------
+
+Nodes of description:
+
+.. image:: https://github.com/nortikin/sverchok/assets/14288520/9cbd1034-111c-40f0-8680-b5cbe53b9347
+  :target: https://github.com/nortikin/sverchok/assets/14288520/9cbd1034-111c-40f0-8680-b5cbe53b9347

index.yaml

@@ -767,7 +767,7 @@
     - SvSetCustomUVMap
     - SvUVtextureNode
     - SvMeshUVColorNode
-    - SvUVPointonMeshNode
+    - SvUVPointonMeshNodeMK2
     - SvSampleUVColorNode
     - SvArmaturePropsNode
     - SvLatticePropsNode

menus/full_by_data_type.yaml

@@ -796,7 +796,7 @@
     - SvSetCustomUVMap
     - SvUVtextureNode
     - SvMeshUVColorNode
-    - SvUVPointonMeshNode
+    - SvUVPointonMeshNodeMK2
     - SvSampleUVColorNode
     - SvArmaturePropsNode
     - SvLatticePropsNode

menus/full_nortikin.yaml

@@ -913,7 +913,7 @@
     - SvSetCustomUVMap
     - SvUVtextureNode
     - SvMeshUVColorNode
-    - SvUVPointonMeshNode
+    - SvUVPointonMeshNodeMK2
     - SvSampleUVColorNode
     - SvArmaturePropsNode
     - SvLatticePropsNode

nodes/object_nodes/points_from_uv_to_mesh.py

@@ -21,19 +21,14 @@
 from mathutils.bvhtree import BVHTree
 from mathutils.geometry import barycentric_transform
 import numpy as np
-from bpy.props import BoolProperty, StringProperty, FloatVectorProperty
+from bpy.props import BoolProperty, StringProperty, FloatVectorProperty, EnumProperty
 from sverchok.node_tree import SverchCustomTreeNode
 
 from sverchok.data_structure import (updateNode)
 
 
-def UV(self, object):
+def UV(self, bm, uv_layer):
     # makes UV from layout texture area to sverchok vertices and polygons.
-    bm = bmesh.new()
-    bm.from_mesh(object.data)
-    uv_layer = bm.loops.layers.uv[0]
-    bm.verts.ensure_lookup_table()
-    bm.faces.ensure_lookup_table()
     vertices_dict = {}
     polygons_new = []
     polygons_new_append = polygons_new.append
@@ -49,20 +44,48 @@ def UV(self, object):
         polygons_new_append(polygons_new_pol)
 
     vertices_new = list( vertices_dict.values() )
-    bm.clear()
     return [vertices_new, polygons_new]
 
 
-class SvUVPointonMeshNode(SverchCustomTreeNode, bpy.types.Node):
+class SvUVPointonMeshNodeMK2(SverchCustomTreeNode, bpy.types.Node):
     ''' Transform vectors from UV space to Object space '''
-    bl_idname = 'SvUVPointonMeshNode'
+    bl_idname = 'SvUVPointonMeshNodeMK2'
     bl_label = 'Find UV Coord on Surface'
     bl_icon = 'GROUP_UVS'
     is_scene_dependent = True
     is_animation_dependent = True
 
     object_ref: StringProperty(default='', update=updateNode)
 
+    apply_modifiers: BoolProperty(
+        name="Apply Modifiers", description="Off: use original object from scene\nOn: Apply modifiers before select UV Map",
+        default=False, update=updateNode)
+
+    uv_select_modes = [
+            ('active_item', "Active Selected", "UV Map selected by an active elem in the list of UV Maps of object data", 0),
+            ('active_render', "Active Render", "UV Map selected by property active_render in the list of UV Maps of object data (actived photo icon)", 1)
+        ]
+
+    uv_select_mode : EnumProperty(
+            name = "Select UV Map by",
+            description = "UV Map select from object data property by",
+            items = uv_select_modes,
+            default = 'active_item',
+            update = updateNode)
+
+    def sv_draw_buttons(self, context, layout):
+        row = layout.row()
+        col = row.column()
+        col.label(text='Apply midifiers:')
+        col = row.column()
+        col.alignment = 'LEFT'
+        col.prop(self, 'apply_modifiers', expand=True, text='')
+        row = layout.row()
+        row.column().label(text="Select UV Map by:")
+        row.column().prop(self, 'uv_select_mode', expand=True ) #, text='')
+
+
+
     def sv_init(self, context):
         si, so = self.inputs.new, self.outputs.new
         si('SvObjectSocket', 'Mesh Object')
@@ -75,31 +98,67 @@ def process(self):
         Object, PointsUV = self.inputs
         Pom, uvV, uvP = self.outputs
         obj = Object.sv_get()[0]  # triangulate faces
-        UVMAPV, UVMAPP = UV(self,obj)
+        if not obj.data.uv_layers:
+            raise Exception(f"Object '{obj.data.name}' has no UV Maps. Open Properties->Data->UV Maps and check list of UV Maps.")
+
+        # get all UV Maps name in object UV Maps list
+        uv_layer_active_render_name = obj.data.uv_layers[0].name
+        for uv in obj.data.uv_layers:
+            if uv.active_render==True:
+                uv_layer_active_render_name = uv.name  # get UV Map name active render (photo mark)
+                break
+
+        bm = bmesh.new()
+        if self.apply_modifiers:
+            # apply modifiers and build mesh after it
+            sv_depsgraph = bpy.context.evaluated_depsgraph_get()
+            scene_object = sv_depsgraph.objects[ obj.name ]
+            object_to_mesh = scene_object.to_mesh(preserve_all_data_layers=True, depsgraph=sv_depsgraph)
+            bm.from_mesh(object_to_mesh)
+            scene_object.to_mesh_clear()
+        else:
+            # get mesh of original object from scene
+            bm.from_mesh(obj.data)
+
+        uv_layer_active = bm.loops.layers.uv.active
+        uv_layer_active_render = obj.data.uv_layers[0]
+        for uv in bm.loops.layers.uv:
+            if uv.name==uv_layer_active_render_name:
+                uv_layer_active_render = uv
+                break
+
+        if self.uv_select_mode=='active_item':
+            uv_layer = uv_layer_active
+        else: #if self.uv_select_mode=='active_render':
+            uv_layer = uv_layer_active_render
+
+        bm.verts.ensure_lookup_table()
+        bm.faces.ensure_lookup_table()
+        UVMAPV, UVMAPP = UV(self, bm, uv_layer)
         if Pom.is_linked:
+            # resore UV to 3D
             pointuv = PointsUV.sv_get()[0]
             bvh = BVHTree.FromPolygons(UVMAPV, UVMAPP, all_triangles=False, epsilon=0.0)
-            ran = range(3)
-            out = []
-            uvMap = obj.data.uv_layers[0].data
+            out = [] # result in 3D
             for Puv in pointuv:
                 loc, norm, ind, dist = bvh.find_nearest(Puv)
-                found_poly = obj.data.polygons[ind]
-                verticesIndices = found_poly.vertices
-                p1, p2, p3 = [obj.data.vertices[verticesIndices[i]].co for i in ran]
-                uvMapIndices = found_poly.loop_indices
-                uv1, uv2, uv3 = [uvMap[uvMapIndices[i]].uv.to_3d() for i in ran]
-                V = barycentric_transform(Puv, uv1, uv2, uv3, p1, p2, p3)
-                out.append(V[:])
+                _found_poly = bm.faces[ind]
+                _p1, _p2, _p3 = [v.co for v in bm.faces[ind].verts[0:3] ]
+                _uv1, _uv2, _uv3 = [l[uv_layer].uv.to_3d() for l in _found_poly.loops[0:3] ]
+                _V = barycentric_transform(Puv, _uv1, _uv2, _uv3, _p1, _p2, _p3)
+                out.append(_V[:])
+
             Pom.sv_set([out])
+        bm.clear()
+
         if uvV.is_linked:
             uvV.sv_set([UVMAPV])
             uvP.sv_set([UVMAPP])
 
 
 def register():
-    bpy.utils.register_class(SvUVPointonMeshNode)
+    bpy.utils.register_class(SvUVPointonMeshNodeMK2)
 
 
 def unregister():
-    bpy.utils.unregister_class(SvUVPointonMeshNode)
+    bpy.utils.unregister_class(SvUVPointonMeshNodeMK2)

old_nodes/points_from_uv_to_mesh.py

@@ -0,0 +1,105 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+import bpy
+import bmesh
+from mathutils.bvhtree import BVHTree
+from mathutils.geometry import barycentric_transform
+import numpy as np
+from bpy.props import BoolProperty, StringProperty, FloatVectorProperty
+from sverchok.node_tree import SverchCustomTreeNode
+
+from sverchok.data_structure import (updateNode)
+
+
+def UV(self, object):
+    # makes UV from layout texture area to sverchok vertices and polygons.
+    bm = bmesh.new()
+    bm.from_mesh(object.data)
+    uv_layer = bm.loops.layers.uv[0]
+    bm.verts.ensure_lookup_table()
+    bm.faces.ensure_lookup_table()
+    vertices_dict = {}
+    polygons_new = []
+    polygons_new_append = polygons_new.append
+    for fi in bm.faces:
+        polygons_new_pol = []
+        polygons_new_pol_append = polygons_new_pol.append
+        for loop in fi.loops:
+            li = loop.index
+            polygons_new_pol_append(li)
+            uv = loop[uv_layer].uv
+            vertices_dict[li] = [ uv.x, uv.y, 0.0]
+
+        polygons_new_append(polygons_new_pol)
+
+    vertices_new = list( vertices_dict.values() )
+    bm.clear()
+    return [vertices_new, polygons_new]
+
+
+class SvUVPointonMeshNode(SverchCustomTreeNode, bpy.types.Node):
+    ''' Transform vectors from UV space to Object space '''
+    bl_idname = 'SvUVPointonMeshNode'
+    bl_label = 'Find UV Coord on Surface'
+    bl_icon = 'GROUP_UVS'
+    is_scene_dependent = True
+    is_animation_dependent = True
+
+    object_ref: StringProperty(default='', update=updateNode)
+
+    def sv_init(self, context):
+        si, so = self.inputs.new, self.outputs.new
+        si('SvObjectSocket', 'Mesh Object')
+        si('SvVerticesSocket', 'Point on UV')
+        so('SvVerticesSocket', 'Point on mesh')
+        so('SvVerticesSocket', 'UVMapVert')
+        so('SvStringsSocket', 'UVMapPoly')
+
+    def process(self):
+        Object, PointsUV = self.inputs
+        Pom, uvV, uvP = self.outputs
+        obj = Object.sv_get()[0]  # triangulate faces
+        UVMAPV, UVMAPP = UV(self,obj)
+        if Pom.is_linked:
+            pointuv = PointsUV.sv_get()[0]
+            bvh = BVHTree.FromPolygons(UVMAPV, UVMAPP, all_triangles=False, epsilon=0.0)
+            ran = range(3)
+            out = []
+            uvMap = obj.data.uv_layers[0].data
+            for Puv in pointuv:
+                loc, norm, ind, dist = bvh.find_nearest(Puv)
+                found_poly = obj.data.polygons[ind]
+                verticesIndices = found_poly.vertices
+                p1, p2, p3 = [obj.data.vertices[verticesIndices[i]].co for i in ran]
+                uvMapIndices = found_poly.loop_indices
+                uv1, uv2, uv3 = [uvMap[uvMapIndices[i]].uv.to_3d() for i in ran]
+                V = barycentric_transform(Puv, uv1, uv2, uv3, p1, p2, p3)
+                out.append(V[:])
+            Pom.sv_set([out])
+        if uvV.is_linked:
+            uvV.sv_set([UVMAPV])
+            uvP.sv_set([UVMAPP])
+
+
+def register():
+    bpy.utils.register_class(SvUVPointonMeshNode)
+
+
+def unregister():
+    bpy.utils.unregister_class(SvUVPointonMeshNode)

tests/docs_tests.py

@@ -37,7 +37,7 @@ def test_uniq_node_modules(self):
                 continue
             with self.subTest(node_module=f"{file_name}.py"):
                 if file_name in modules:
-                    self.fail(f'There are tow modules with the same name "{file_name}" \n'
+                    self.fail(f'There are two modules with the same name "{file_name}" \n'
                               f'File 1: {Path(modules[file_name]).relative_to(sv_root)} \n'
                               f'file 2: {Path(path).relative_to(sv_root)}')
                 else:
@@ -59,7 +59,6 @@ def test_node_docs_existance(self):
 scene_raycast2.py
 sculpt_mask.py
 set_blenddata2.py
-points_from_uv_to_mesh.py
 custom_mesh_normals.py
 color_uv_texture.py
 filter_blenddata.py