+++ /dev/null
-#!/usr/bin/env python
-
-#
-# flatland is a simple 2d physical simulator
-#
-# Copyright (c) 2016 Idiap Research Institute, http://www.idiap.ch/
-# Written by Francois Fleuret <francois.fleuret@idiap.ch>
-#
-# This file is part of flatland
-#
-# flatland is free software: you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# flatland is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with flatland. If not, see <http://www.gnu.org/licenses/>.
-#
-
-import torch
-import torchvision
-import argparse
-
-import flatland
-
-######################################################################
-
-parser = argparse.ArgumentParser(
- description = 'Dummy test of the flatland sequence generation.',
- formatter_class = argparse.ArgumentDefaultsHelpFormatter
-)
-
-parser.add_argument('--seed',
- type = int, default = 0,
- help = 'Random seed, < 0 is no seeding')
-
-parser.add_argument('--width',
- type = int, default = 80,
- help = 'Image width')
-
-parser.add_argument('--height',
- type = int, default = 80,
- help = 'Image height')
-
-parser.add_argument('--nb_shapes',
- type = int, default = 8,
- help = 'Image height')
-
-parser.add_argument('--nb_sequences',
- type = int, default = 8,
- help = 'How many sequences to generate')
-
-parser.add_argument('--nb_images_per_sequences',
- type = int, default = 16,
- help = 'How many images per sequence')
-
-parser.add_argument('--randomize_colors',
- action='store_true', default=True,
- help = 'Should the shapes be of different colors')
-
-parser.add_argument('--randomize_shape_size',
- action='store_true', default=False,
- help = 'Should the shapes be of different size')
-
-args = parser.parse_args()
-
-if args.seed >= 0:
- torch.manual_seed(args.seed)
-
-######################################################################
-
-def sequences_to_image(x, gap = 1, gap_color = (0, 128, 255)):
- from PIL import Image
-
- nb_sequences = x.size(0)
- nb_images_per_sequences = x.size(1)
- nb_channels = 3
-
- if x.size(2) != nb_channels:
- print('Can only handle 3 channel tensors.')
- exit(1)
-
- height = x.size(3)
- width = x.size(4)
-
- result = torch.ByteTensor(nb_channels,
- gap + nb_sequences * (height + gap),
- gap + nb_images_per_sequences * (width + gap))
-
- result.copy_(torch.Tensor(gap_color).view(-1, 1, 1).expand_as(result))
-
- for s in range(0, nb_sequences):
- for i in range(0, nb_images_per_sequences):
- result.narrow(1, gap + s * (height + gap), height) \
- .narrow(2, gap + i * (width + gap), width) \
- .copy_(x[s][i])
-
- result_numpy = result.cpu().byte().transpose(0, 2).transpose(0, 1).numpy()
-
- return Image.fromarray(result_numpy, 'RGB')
-
-######################################################################
-
-x = flatland.generate_sequence(False,
- args.nb_sequences,
- args.nb_images_per_sequences,
- args.height, args.width,
- args.nb_shapes,
- args.randomize_shape_size,
- args.randomize_colors)
-
-sequences_to_image(x, gap = 3, gap_color = (0, 150, 200)).save('sequences.png')
-
-print('Saved sequences.png.')