///<summary> This gets called when when the user runs this command.</summary> public override IRhinoCommand.result RunCommand(IRhinoCommandContext context) { // Step 1, select objects to include in the instance definition MRhinoGetObject go = new MRhinoGetObject(); go.SetCommandPrompt("Select objects to define block"); go.EnableReferenceObjectSelect(false); go.EnableSubObjectSelect(false); go.EnableGroupSelect(true); // Phantoms, grips, lights, etc., cannot be in instance definitions. uint forbidden_geometry_filter = (uint)(IRhinoGetObject.GEOMETRY_TYPE_FILTER.light_object | IRhinoGetObject.GEOMETRY_TYPE_FILTER.grip_object | IRhinoGetObject.GEOMETRY_TYPE_FILTER.phantom_object ); uint geometry_filter = forbidden_geometry_filter ^ (uint)IRhinoGetObject.GEOMETRY_TYPE_FILTER.any_object; go.SetGeometryFilter(geometry_filter); go.GetObjects(1, 0); if (go.CommandResult() != IRhinoCommand.result.success) { return(go.CommandResult()); } // Step 2, select base point MRhinoGetPoint gp = new MRhinoGetPoint(); gp.SetCommandPrompt("Block base point"); gp.GetPoint(); if (gp.CommandResult() != IRhinoCommand.result.success) { return(gp.CommandResult()); } On3dPoint base_point = gp.Point(); // Step 3, get instance definition name MRhinoGetString gs = new MRhinoGetString(); gs.SetCommandPrompt("Block definition name"); gs.SetDefaultString(GetUnusedInstanceDefinitionName(context.m_doc)); gs.GetString(); if (gs.CommandResult() != IRhinoCommand.result.success) { return(gs.CommandResult()); } string idef_name = gs.String().Trim(); if (string.IsNullOrEmpty(idef_name)) { return(IRhinoCommand.result.nothing); } // Step 4, verify objects int found_index = context.m_doc.m_instance_definition_table.FindInstanceDefinition(idef_name); List <IRhinoObject> objects = new List <IRhinoObject>(); bool bQuietly = context.IsInteractive() ? false : true; for (int i = 0; i < go.ObjectCount(); i++) { IRhinoObject obj = go.Object(i).Object(); if (obj == null) { continue; } // Probably don't need to do this... if (0 != (forbidden_geometry_filter & (uint)obj.ObjectType())) { continue; } if (obj.ObjectType() == IOn.object_type.instance_reference) { IRhinoInstanceObject iref_obj = MRhinoInstanceObject.ConstCast(obj); if (iref_obj != null) { if (found_index >= 0 && iref_obj.UsesDefinition(found_index) > 0) { if (!bQuietly) { RhUtil.RhinoApp().Print("Unable to create block.\n"); } return(IRhinoCommand.result.failure); } } } objects.Add(obj); } // Step 5, create instance definition OnInstanceDefinition idef = new OnInstanceDefinition(); idef.SetName(idef_name); int idef_index = CreateInstanceDefinition(context.m_doc, idef, base_point, objects, bQuietly); if (idef_index < 0) { return(IRhinoCommand.result.failure); } // Step 6, create the instance reference OnXform xform = new OnXform(); xform.Translation(base_point - new On3dPoint(OnUtil.On_origin)); IRhinoInstanceObject inst_obj = context.m_doc.m_instance_definition_table.CreateInstanceObject(idef_index, xform); if (inst_obj != null) { inst_obj.Select(true); } else { if (!bQuietly) { RhUtil.RhinoApp().Print("Error creating block.\n"); } return(IRhinoCommand.result.failure); } // Step 7, delete existing geometry for (int i = 0; i < objects.Count; i++) { context.m_doc.DeleteObject(new MRhinoObjRef(objects[i])); } context.m_doc.Redraw(); return(IRhinoCommand.result.success); }
///<summary> This gets called when when the user runs this command.</summary> public override IRhinoCommand.result RunCommand(IRhinoCommandContext context) { // Prompt for the instance (block) name MRhinoGetString gs = new MRhinoGetString(); gs.SetCommandPrompt("Name of block to delete"); gs.GetString(); if (gs.CommandResult() != IRhinoCommand.result.success) { return(gs.CommandResult()); } string idef_name = gs.String().Trim(); if (string.IsNullOrEmpty(idef_name)) { return(IRhinoCommand.result.nothing); } // Find the instance definition by name int idef_index = context.m_doc.m_instance_definition_table.FindInstanceDefinition(idef_name, true); if (idef_index < 0 || idef_index >= context.m_doc.m_instance_definition_table.InstanceDefinitionCount()) { RhUtil.RhinoApp().Print(string.Format("Block definition \"{0}\" not found.\n", idef_name)); return(IRhinoCommand.result.nothing); } // Verify the instance definition can be deleted IRhinoInstanceDefinition idef = context.m_doc.m_instance_definition_table[idef_index]; if (idef.IsReference()) { RhUtil.RhinoApp().Print(string.Format("Block definition \"{0}\" is from a reference file.\n", idef_name)); return(IRhinoCommand.result.nothing); } // Get all of instance references IRhinoInstanceObject[] iref_object_list = null; int iref_count = idef.GetReferences(out iref_object_list); // Try deleting the instance references int num_deleted = 0; for (int i = 0; i < iref_count; i++) { IRhinoInstanceObject iref = iref_object_list[i]; if (null == iref) { continue; } if (iref.IsDeleted() || iref.IsReference()) { continue; } MRhinoObjRef obj_ref = new MRhinoObjRef(iref_object_list[i]); if (context.m_doc.DeleteObject(obj_ref, true)) { num_deleted++; } } if (num_deleted > 0) { context.m_doc.Redraw(); } RhUtil.RhinoApp().Print(string.Format("{0} \"{1}\" block(s) found, {2} deleted.\n", iref_count, idef_name, num_deleted)); // Try deleting the instance definition bool iref_deleted = false; if (num_deleted == iref_count) { if (context.m_doc.m_instance_definition_table.DeleteInstanceDefinition(idef_index, true, false)) { iref_deleted = true; } } if (iref_deleted) { RhUtil.RhinoApp().Print(string.Format("Block definition \"{0}\" deleted.\n", idef_name)); } else { RhUtil.RhinoApp().Print(string.Format("Block definition \"{0}\" not deleted.\n", idef_name)); } return(IRhinoCommand.result.success); }