2D 结构分析，毫不妥协

Effective Date: August 14, 2025
Last Updated: August 14, 2025

We value your privacy and are committed to protecting your personal data. This Privacy Policy explains what information we collect, how we use it, and the rights you have.

1. Information We Collect

We collect only the information necessary to provide and improve our services:

• Email address – provided voluntarily when subscribing via our website form.
• Survey form responses – voluntarily provided answers to questions about your work, preferences, and needs.
• Analytics data – aggregated, anonymized statistics collected via Plausible Analytics, which does not store personal data or IP addresses.
• Technical data – automatically collected technical information (e.g., browser type, device type) in aggregated form via analytics tools.
• Cookies – Our service uses no cookies except those strictly necessary for basic site functionality. Plausible does not use cookies.

2. How We Use Your Information

We use the information collected for:

• Understanding the market demand and user needs.
• Analyzing the most requested features and geographic distribution of interest.
• Sending discounts, trial offers, and other benefits related to our services.
• Improving our website, user experience, and product features.
• Communicating with you in response to your inquiries or feedback.

3. Data Sharing with Third Parties

We do not sell or transfer personal data to third parties, except in cases necessary for the operation of the service or when required by law:

• Hosting – The website and database are hosted on Replit and Neon servers (AWS, region: Frankfurt, Germany).
• Analytics – Aggregated data is collected using Plausible (servers in the EU).
• Legal obligations – We may disclose data if required to comply with applicable laws, including requirements under GDPR, by court order, upon request from competent authorities, or to protect our legal rights.

These companies and authorities process data only within the scope of the services provided and in compliance with applicable laws.

4. Data Retention

• Email addresses and survey data – stored until they are no longer necessary for the purposes for which they were collected or until you request deletion.
• Analytics data – stored in aggregated form only, without personal identifiers.

You may request deletion of your data at any time.

5. Your Rights

We respect the privacy rights of all users, regardless of their country of residence. You may have the following rights:

• Right to access your personal data and request a copy.
• Right to request correction of inaccurate or incomplete data.
• Right to request deletion of your personal data ("right to be forgotten").
• Right to restrict or object to the processing of your data.
• Right to withdraw your consent at any time.

Additional rights based on local laws:

• GDPR (EU/EEA residents): Data portability, restriction of processing, and specific transparency obligations.
• CCPA (California residents): Right to know the categories of collected personal information, request deletion, and opt out of the sale of personal information.

To exercise these rights, contact us at: info@rodxcalc.com

6. International Data Transfers

Data is stored and processed primarily in the European Union (Frankfurt, Germany). By using our service, you acknowledge that your data may be transferred to and processed in countries with different data protection laws.

7. Security Measures

We use technical and organizational measures to protect your data, including encryption, secure access controls, and regular system monitoring.

8. Changes to This Policy

We may update this Privacy Policy from time to time. The latest version will always be available on this page with the updated date.

Contact Us

If you have any questions about this Privacy Policy or your data, please contact us at: info@rodxcalc.com

Effective Date: November 01, 2025
Last Updated: November 01, 2025

1. Acceptance of Terms

By accessing or using RodX (the "Service"), you agree to be bound by these Terms & Conditions. If you do not agree, please do not use the Service.

2. Purpose of the Service

• RodX provides tools for 2D finite element analysis to support structural engineering work.
• The platform is designed to improve workflow efficiency, visualization, and preliminary analysis.
• RodX does not replace the independent professional judgment of a qualified engineer.

3. Engineering Responsibility

While RodX aims to deliver accurate and reliable computational results, the interpretation, verification, and application of those results are solely the responsibility of the user.

Users agree that:

• all engineering decisions must be reviewed and validated by a qualified professional,
• results produced by the Service must be checked for compliance with relevant design codes, standards, and safety requirements,
• RodX is intended as a tool that supports engineering work, not as an automated design approval system.

4. No Warranty

The Service is provided "as is" and "as available", without any expressed or implied warranties regarding:

• accuracy, completeness, or fitness for a specific engineering purpose,
• suitability of calculations for final design, permitting, or construction,
• absence of errors, bugs, or interruptions.

RodX uses the OpenSees computational engine; however, no warranty is given regarding the outcome or correctness of any analysis performed using this engine.

5. Limitation of Liability

To the maximum extent permitted by law, RodX and its creator shall not be liable for:

• direct or indirect damages,
• economic or structural losses,
• failures of constructed elements,
• loss of data,
• damages resulting from reliance on analysis results,
• consequences of engineering or design decisions made by the user.

By using the Service, you agree that all risks associated with the interpretation and use of analysis results rest entirely with you.

6. User Conduct

You agree not to:

• misuse, modify, or reverse-engineer any part of the Service,
• disrupt or attempt to bypass security measures,
• use the platform in unlawful ways.

7. Intellectual Property

All software, interface elements, design, and documentation of RodX are the intellectual property of the creator unless otherwise stated. Users receive a non-exclusive, revocable license to use the Service for legitimate engineering work.

8. Donations

Donations are voluntary and do not form any contractual obligation, subscription, service tier, or guarantee of support. A donation does not create a customer–vendor relationship or impose deliverable obligations on the Service.

9. Third-Party Services

RodX may rely on third-party technologies (including OpenSees). The Service is not responsible for any issues arising from external libraries, APIs, or frameworks.

9.1. OpenSees Acknowledgment

RodX utilizes the OpenSees (Open System for Earthquake Engineering Simulation) framework developed by the University of California, Berkeley.

9.2. License

This framework is used in accordance with the OpenSees copyright notice.

9.3. OpenSees Framework License and Copyright Notice

Copyright @ 1999-2025 The Regents of the University of California. All Rights Reserved.

The Regents grants permission, without fee and without a written license agreement, for (a) use, reproduction, modification, and distribution of this software and its documentation by educational, research, and non-profit entities for noncommercial purposes only; and (b) use, reproduction and modification of this software by other entities for internal purposes only. The above copyright notice, this paragraph and the following three paragraphs must appear in all copies and modifications of the software and/or documentation.

Permission to incorporate this software into commercial products may be obtained by contacting the University of California. Please reach the Office of Technology Licensing (OTL), at Berkeley Intellectual Property & Industry Research Alliances (IPIRA).

This software program and documentation are copyrighted by The Regents of the University of California. The software program and documentation are supplied "as is", without any accompanying services from The Regents. The Regents does not warrant that the operation of the program will be uninterrupted or error-free. The end-user understands that the program was developed for research purposes and is advised not to rely exclusively on the program for any reason.

IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

10. Changes to the Terms

RodX reserves the right to update these Terms & Conditions at any time. Continued use of the Service after such changes constitutes acceptance of the updated Terms.

11. Governing Law

These Terms shall be governed by applicable international principles of online services and general contract law unless superseded by local mandatory regulations.

12. Contact

For questions, suggestions, or technical issues, please contact: info@rodxcalc.com