taipy/doc/gui/examples/charts/gantt_simple.py

# Copyright 2021-2024 Avaiga Private Limited
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
#        http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
# an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
# specific language governing permissions and limitations under the License.
# -----------------------------------------------------------------------------------------
# To execute this script, make sure that the taipy-gui package is installed in your
# Python environment and run:
#     python <script>
# -----------------------------------------------------------------------------------------
import datetime

from taipy.gui import Gui

# Tasks definitions
tasks = ["Plan", "Research", "Design", "Implement", "Test", "Deliver"]
# Task durations, in days
durations = [50, 30, 30, 40, 15, 10]
# Planned start dates of tasks
start_dates = [
    datetime.date(2022, 10, 15),  # Plan
    datetime.date(2022, 11, 7),  # Research
    datetime.date(2022, 12, 1),  # Design
    datetime.date(2022, 12, 20),  # Implement
    datetime.date(2023, 1, 15),  # Test
    datetime.date(2023, 2, 1),  # Deliver
]

epoch = datetime.date(1970, 1, 1)

data = {
    "start": start_dates,
    "Task": tasks,
    # Compute the time span as adatetime (relative to January 1st, 1970)
    "Date": [epoch + datetime.timedelta(days=duration) for duration in durations],
}

layout = {
    "yaxis": {
        # Sort tasks from top to bottom
        "autorange": "reversed",
        # Remove title
        "title": {"text": ""},
    },
}

page = """
<|{data}|chart|type=bar|orientation=h|y=Task|x=Date|base=start|layout={layout}|>
"""

if __name__ == "__main__":
    Gui(page).run(title="Chart - Gantt - Simple")