SDX-Cloud: Project coordinate systems - US state planes

Summary

You can use a state plane coordinate system when you create a new project in SDX-Cloud by switching the coordinate system setup to a custom configuration and entering the EPSG code manually. Use the NAD83 EPSG code for the required state plane. If both feet and meter variants are available, SDX-Cloud supports both.

Introduction

This workflow is useful when your project must use a US state plane coordinate system instead of one of the standard predefined options. During project creation, state plane setups are handled through the custom coordinate system flow, where you enter the horizontal EPSG code manually and then choose the vertical setup that matches your project requirements.

Prerequisites

• You can create a new project in SDX-Cloud.
• You know which state plane coordinate system your project requires.
• You have the correct NAD83 EPSG code for that state plane.
• If your workflow uses a grid file for the vertical setup, you know which grid matches the project location.

Step-by-step instructions

1. Find the correct state plane EPSG code

1. Confirm which state plane coordinate system is required for the project.
2. Look up the matching EPSG code.
   1. a simple web search like "Florida East state plane epsg" can be enough here
3. Use the NAD83 EPSG code for the setup.
4. If both a feet and meter variant are available, choose the one that matches your project requirements but both are handled correctly by the SDX-Cloud.

Expected result: You have the exact NAD83 EPSG code that matches the required state plane.

2. Open the custom coordinate system setup

1. Start creating a new project in SDX-Cloud.
2. Open the coordinate system settings during project creation.
3. Select Custom as the coordinate system option.
4. Keep the horizontal type set to EPSG.

Expected result: The project setup is ready for manual EPSG code entry.

3. Enter the state plane EPSG code manually

1. Go to the EPSG code field.
2. Enter the state plane EPSG code manually.
3. Continue even if the dropdown does not show a matching predefined option.

Expected result: The horizontal coordinate system is set to the required state plane EPSG code.

4. Choose the vertical setup

1. After the horizontal EPSG code is set, open the vertical type options.
2. Select Offset or Gridfile, depending on your project requirements.
3. If you use a grid file, make sure the grid covers the location of the project and matches the area of the selected state plane. For USA GEOID grid files, see Article: SDX-Cloud: Use USA GEOIDs in custom coordinate systems.

Expected result: The vertical setup matches the project location and the selected horizontal coordinate system.

5. Finish project creation

1. Review the coordinate system settings.
2. Continue with project creation.
3. Verify that the project uses the intended coordinate system configuration after the project is created.

Expected result: The project is created with the selected state plane coordinate system setup.

Limits and notes

• State plane coordinate systems are entered through the Custom coordinate system flow.
• The horizontal type stays set to EPSG.
• State plane EPSG codes must be entered manually.
• If both feet and meter variants exist, SDX-Cloud supports both options.
• A grid file should only be used when it matches the location of the project.

Related articles

• Article: SDX-Cloud: Use USA GEOIDs in custom coordinate systems
• Article: SDX-Cloud: Coordinatesystems