finshi press action

data_gen_dependencies/action/twist.py

@@ -0,0 +1,52 @@
+import numpy as np
+
+from data_gen_dependencies.action.base import StageTemplate
+
+
+class TwistStage(StageTemplate):
+    DELTA_DISTANCE = 0.01  # meter
+    def __init__(self, active_obj_id, passive_obj_id, active_element=None, passive_element=None, target_pose=np.eye(4), extra_params=None, active_obj=None, passive_obj=None, **kwargs):
+        super().__init__(active_obj_id, passive_obj_id, active_element, passive_element)
+        self.passive_obj = passive_obj
+        self.active_obj = active_obj
+        self.joint_position_threshold = passive_element.get('joint_position_threshold', 0.7)
+        self.correspond_joint_id = passive_element.get('correspond_joint_id', None)
+        correspond_joint_info = passive_obj.joints_info[self.correspond_joint_id]
+        self.joint_lower_limit = correspond_joint_info["lower_bound"]
+        self.joint_upper_limit = correspond_joint_info["upper_bound"]
+        self.joint_axis = correspond_joint_info["joint_axis"]
+        self.joint_type = correspond_joint_info["joint_type"]
+        assert self.joint_type == 'revolute', "joint_type must be revolute for pull_revolute action"
+        self.revolute_radius = passive_element.get('revolute_radius', None)
+        assert self.revolute_radius is not None, "revolute_radius is required for pull_revolute action"
+        if self.joint_position_threshold is None:
+            self.joint_position_threshold = 0.7
+        assert self.joint_position_threshold >= 0 and self.joint_position_threshold <= 1 
+
+        self.joint_direction = passive_element.get('joint_direction', 1)
+        assert self.joint_direction in [-1, 1]
+
+        self.joint_velocity_threshold = passive_element.get('joint_velocity_threshold', 999)
+        vector_direction = passive_element['direction']
+
+        self.extra_params = {} if extra_params is None else extra_params
+        self.generate_substage(target_pose, vector_direction)
+
+    def generate_substage(self, target_pose, vector_direction):
+        vector_direction = vector_direction / np.linalg.norm(vector_direction)
+        free_delta_pose = np.eye(4)
+        free_delta_pose[2,3] = -0.03
+        self.sub_stages.append([free_delta_pose, None, np.eye(4), 'local_gripper'])
+
+    def check_completion(self, objects):
+        if self.__len__() == 0:
+            return True
+
+        succ = False
+        if self.step_id >= 0:
+            succ = True
+
+        if succ:
+            self.step_id += 1
+
+        return succ