Files
VLA/scripts/draw_openloop_plot.py
T
suolyerandyangping d18fa65fa1 add mot (#83)
* add mot

* update libero example

* translate zh to en

* fix load model from hf

* lint

* lint

---------

Co-authored-by: yangping <yangping@x2robot.com>
2026-02-03 11:35:25 +08:00

126 lines
4.4 KiB
Python

import os
import yaml
import torch
import argparse
from tqdm import tqdm
import matplotlib.pyplot as plt
from wall_x.model.qwen2_5_based.modeling_qwen2_5_vl_act import Qwen2_5_VLMoEForAction
from wall_x.data.load_lerobot_dataset import load_test_dataset, get_data_configs
from wall_x.model.model_utils import register_normalizers
import copy
def load_config(config_path):
"""Load configuration from YAML file."""
with open(config_path, "r") as f:
config = yaml.load(f, Loader=yaml.FullLoader)
config["data"]["model_type"] = config.get("model_type")
return config
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--pred_horizon", type=int, default=32)
parser.add_argument("--origin_action_dim", type=int, default=14)
args = parser.parse_args()
origin_action_dim = args.origin_action_dim
pred_horizon = args.pred_horizon
# get train config
model_path = "/path/to/your/checkpoint"
action_tokenizer_path = "/path/to/Models/fast"
save_dir = "/path/to/save/dir"
path = f"{model_path}/config.yml"
config = load_config(path)
normalizer_action, normalizer_propri = register_normalizers(config, model_path)
# load model with customized robot config
model = Qwen2_5_VLMoEForAction.from_pretrained(
model_path, train_config=config, action_tokenizer_path=action_tokenizer_path
)
model.set_normalizer(
copy.deepcopy(normalizer_action), copy.deepcopy(normalizer_propri)
)
model.eval()
model = model.to("cuda")
model.to_bfloat16_for_selected_params()
# get test dataloader
dataload_config = get_data_configs(config["data"])
lerobot_config = dataload_config.get("lerobot_config", {})
dataset = load_test_dataset(
config, lerobot_config, normalizer_action, normalizer_propri, seed=42
)
dataloader = dataset.get_dataloader()
# dataloader = dataset.get_train_dataloader()
total_frames = len(dataloader)
predict_mode = "fast" if config.get("use_fast_tokenizer", False) else "diffusion"
action_dim = 14 if predict_mode == "diffusion" else origin_action_dim
gt_traj = torch.zeros((total_frames, origin_action_dim))
pred_traj = torch.zeros((total_frames, origin_action_dim))
# use tqdm to show the progress
for idx, batch in tqdm(
enumerate(dataloader), total=total_frames, desc="predicting"
):
if idx % pred_horizon == 0 and idx + pred_horizon < total_frames:
batch = batch.to("cuda")
with torch.no_grad():
outputs = model(
**batch,
action_dim=action_dim,
action_horizon=pred_horizon,
mode="predict",
predict_mode=predict_mode,
)
pred_traj[idx : idx + pred_horizon] = (
outputs["predict_action"][:, :, :origin_action_dim]
.detach()
.cpu()
.squeeze(0)
)
# Denormalize ground truth actions
gt_action_chunk = batch["action_chunk"][:, :, :origin_action_dim]
dof_mask = batch["dof_mask"].to(gt_action_chunk.dtype)
denormalized_gt = (
model.action_preprocessor.normalizer_action.unnormalize_data(
gt_action_chunk,
[lerobot_config.get("repo_id", "physical-intelligence/libero")],
dof_mask,
).squeeze(0)
)
gt_traj[idx : idx + pred_horizon] = denormalized_gt.detach().cpu()
gt_traj_np = gt_traj.numpy()
pred_traj_np = pred_traj.numpy()
timesteps = gt_traj.shape[0]
fig, axs = plt.subplots(
origin_action_dim, 1, figsize=(15, 5 * origin_action_dim), sharex=True
)
fig.suptitle("Action Comparison for lerobot", fontsize=16)
for i in range(origin_action_dim):
axs[i].plot(range(timesteps), gt_traj_np[:, i], label="Ground Truth")
axs[i].plot(range(timesteps), pred_traj_np[:, i], label="Prediction")
axs[i].set_ylabel(f"Action Dim {i+1}")
axs[i].legend()
axs[i].grid(True)
axs[-1].set_xlabel("Timestep")
plt.tight_layout(rect=[0, 0.03, 1, 0.95])
os.makedirs(save_dir, exist_ok=True)
save_path = os.path.join(save_dir, "lerobot_comparison.png")
plt.savefig(save_path)
print(f"Saved plot to {save_path}")
plt.close()