I would like to write an Addon for blender 2.80 with python 3.7 but I can't find any tutorial or other material for learning how to do. I have used the template in blender for creating my base Addon and it work but now I want to add option panel with 2 o 3 input text and 2 or 3 button for the option. Can anyone help me please?
With the documentation that you give me I wrote this code:
bl_info = {
"name": "Simple Add-on Template",
"author": "Marco Mameli",
"location": "View3D > Add > Mesh > Generate",
"version": (1, 0, 0),
"blender": (2, 80, 0),
"description": "Starting point for new add-ons.",
"category": "Add Mesh"
}
import bpy
import bmesh
from bpy.types import Operator
from bpy.types import Panel
def add_pointcloud(self, context, naming):
# qui scrivo i miei calcoli
obj = context.active_object
mycollection = bpy.data.collections.new("MyPointCloudCollection")
bpy.context.scene.collection.children.link(mycollection)
me = obj.data
bm = bmesh.new()
bm.from_mesh(me)
bmFaces = []
for face in bm.faces:
faceLocation = face.calc_center_median()
print(faceLocation)
bmFaces.append(obj.matrix_world @ faceLocation) # la @ è il prodotto vettoriale
for vertex in bm.verts:
print(vertex.co)
bmFaces.append(obj.matrix_world @ vertex.co)
me = bpy.data.meshes.new(obj.name + 'Mesh' + naming)
ob = bpy.data.objects.new(obj.name + '_PointCloud_' + naming, me)
ob.show_name = True
bpy.data.collections['MyPointCloudCollection'].objects.link(ob)
me.from_pydata(bmFaces, [], [])
me.update()
ob.select_set(True)
class OBJECT_OT_add_PointCloud_with_noise(Operator):
""" Create a Point Cloud """
bl_idname = "object.add_pointcloud_with_noise"
bl_label = "Add Mesh object that represent a Point Cloud"
bl_options = {'REGISTER', 'UNDO'}
def execute(self,context): # operazioni da eseguire
# MAI METTERE IL CODICE QUI DENTRO DIRETTAMENTE
print("Sono in with noise")
add_pointcloud(self, context, "with_noise")
return {'FINISHED'}
class OBJECT_OT_add_PointCloud(Operator):
""" Create a Point Cloud """
bl_idname = "object.add_mesh_pointcloud"
bl_label = "Add Mesh object that represent a Point Cloud"
bl_options = {'REGISTER', 'UNDO'}
def execute(self,context): # operazioni da eseguire
# MAI METTERE IL CODICE QUI DENTRO DIRETTAMENTE
print("sono in no noise")
add_pointcloud(self, context, "no_noise")
return {'FINISHED'}
def draw(self,context):
layout = self.layout
scene = context.scene
layout.label(text="Pointcloud option")
row = layout.row()
row.prop(scene, "frame_star")
layout.label(text="Big Button:")
row = layout.row()
row.scale_y = 1.0
row.operator("object.add_pointcloud_with_noise")
# creo il bottone da aggiungere al menu di blender
def add_pointcloud_button(self, context):
self.layout.operator(OBJECT_OT_add_PointCloud.bl_idname, text="Generate Point Cloud",
icon='PLUGIN')
# creo il link al manuale
def add_pointcloud_manual_map():
url_manual_prefix=""
url_manual_mapping = (("bpy.ops.mesh.add_pointcloud", "editors/edview/object"),)
return url_manual_prefix, url_manual_mapping
# Options panel for addon
class OBJECT_PT_add_PointCloud_properties(Panel):
bl_label = "Properties Layout"
bl_idname = "SCENE_PT_layout_PointCloud_properties"
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "scene"
def draw(self,context):
layout = self.layout
scene = context.scene
layout.label(text="Pointcloud option")
row = layout.row()
row.prop(scene, "frame_star")
layout.label(text="Big Button:")
row = layout.row()
row.scale_y = 3.0
row.operator("render.render")
classes = (OBJECT_OT_add_PointCloud, OBJECT_PT_add_PointCloud_properties, OBJECT_OT_add_PointCloud_with_noise)
def register():
for cls in classes:
bpy.utils.register_class(cls)
bpy.utils.register_manual_map(add_pointcloud_manual_map)
bpy.types.VIEW3D_MT_mesh_add.append(add_pointcloud_button)
def unregister():
for cls in classes:
bpy.utils.unregister_class(cls)
bpy.utils.register_manual_map(add_pointcloud_manual_map)
bpy.types.VIEW3D_MT_mesh_add.remove(add_pointcloud_button)
if __name__ == "__main__":
register()
When I run the script the Addon is created correctly but not work how I want. In fact the panel is not added if I do not insert draw function in my operator and the first operator is not recognized. How can I fix this?
