blender-gdsimporter/__init__.py

bl_info = {
    "name": "gdsii OBJ format",
    "author": "Julian Daube",
    "version": (0, 9, 0),
    "blender": (2, 78, 0),
    "location": "File > Import-Export",
    "description": "Import GdsII files",
    "warning": "",
    "category": "Import-Export"}

if "bpy" in locals():
    import importlib
    if "import_gds" in locals():
        importlib.reload(import_gds)
    
import bpy

from bpy.props import (
        BoolProperty,
        FloatProperty,
        StringProperty,
        EnumProperty,
        )
from bpy_extras.io_utils import (
        ImportHelper,
        ExportHelper,
        orientation_helper_factory,
        path_reference_mode,
        axis_conversion,
        )

IOOBJOrientationHelper = orientation_helper_factory("IOOBJOrientationHelper", axis_forward='-Z', axis_up='Y')


class ImportGDS(bpy.types.Operator, ImportHelper, IOOBJOrientationHelper):
    """Load a GDSII File"""
    bl_idname = "import_scene.gds"
    bl_label = "Import GDSII"
    bl_options = {'PRESET', 'UNDO'}

    filename_ext = ".obj"
    filter_glob = StringProperty(
            default="*.gds",
            options={'HIDDEN'},
            )

    use_edges = BoolProperty(
            name="Lines",
            description="Import lines and faces with 2 verts as edge",
            default=True,
            )
    use_smooth_groups = BoolProperty(
            name="Smooth Groups",
            description="Surround smooth groups by sharp edges",
            default=True,
            )

    use_split_objects = BoolProperty(
            name="Object",
            description="Import OBJ Objects into Blender Objects",
            default=True,
            )
    use_split_groups = BoolProperty(
            name="Group",
            description="Import OBJ Groups into Blender Objects",
            default=True,
            )

    use_groups_as_vgroups = BoolProperty(
            name="Poly Groups",
            description="Import OBJ groups as vertex groups",
            default=False,
            )

    use_image_search = BoolProperty(
            name="Image Search",
            description="Search subdirs for any associated images "
                        "(Warning, may be slow)",
            default=True,
            )

    split_mode = EnumProperty(
            name="Split",
            items=(('ON', "Split", "Split geometry, omits unused verts"),
                   ('OFF', "Keep Vert Order", "Keep vertex order from file"),
                   ),
            )

    global_clamp_size = FloatProperty(
            name="Clamp Size",
            description="Clamp bounds under this value (zero to disable)",
            min=0.0, max=1000.0,
            soft_min=0.0, soft_max=1000.0,
            default=0.0,
            )

    def execute(self, context):
        # print("Selected: " + context.active_object.name)
        from . import import_gds

        if self.split_mode == 'OFF':
            self.use_split_objects = False
            self.use_split_groups = False
        else:
            self.use_groups_as_vgroups = False

        keywords = self.as_keywords(ignore=("axis_forward",
                                            "axis_up",
                                            "filter_glob",
                                            "split_mode",
                                            ))

        global_matrix = axis_conversion(from_forward=self.axis_forward,
                                        from_up=self.axis_up,
                                        ).to_4x4()

        keywords["global_matrix"] = global_matrix
        keywords["use_cycles"] = (context.scene.render.engine == 'CYCLES')

        if bpy.data.is_saved and context.user_preferences.filepaths.use_relative_paths:
            import os
            keywords["relpath"] = os.path.dirname(bpy.data.filepath)

        return import_gds.load(context, **keywords)

    def draw(self, context):
        layout = self.layout

        row = layout.row(align=True)
        row.prop(self, "use_smooth_groups")
        row.prop(self, "use_edges")

        box = layout.box()
        row = box.row()
        row.prop(self, "split_mode", expand=True)

        row = box.row()
        if self.split_mode == 'ON':
            row.label(text="Split by:")
            row.prop(self, "use_split_objects")
            row.prop(self, "use_split_groups")
        else:
            row.prop(self, "use_groups_as_vgroups")

        row = layout.split(percentage=0.67)
        row.prop(self, "global_clamp_size")
        layout.prop(self, "axis_forward")
        layout.prop(self, "axis_up")

        layout.prop(self, "use_image_search")



def menu_func_import(self, context):
    self.layout.operator(ImportGDS.bl_idname, text="GDSII Stream (.gds)")

classes = (
    ImportGDS,
)


def register():
    for cls in classes:
        bpy.utils.register_class(cls)

    bpy.types.INFO_MT_file_import.append(menu_func_import)
    

def unregister():
    bpy.types.INFO_MT_file_import.remove(menu_func_import)
    
    for cls in classes:
        bpy.utils.unregister_class(cls)


if __name__ == "__main__":
    register()