6 - OBJ Geometry Import

1.0 Introduction

In this tutorial, you will become familiar with the process of importing an OBJ geometry file to reconstruct and generate a 3D model in ShapeMetriX’s ModelEditor tool.

The ModelEditor is a convenient tool for: 

• Generating 3D models from existing *.e57 laser scanner or *.obj datasets. 
• Converting models from previous ShapeMetriX versions in the *.jm3 file format to the new ShapeMetriX v5.0 compatible *.jm3x file format. 
• Editing existing 3D models by trimming and confining it to the area of interest.

Topics Cover in this Tutorial

• OBJ Geometry Import
• 3D Model Reconstruction and Saving

Project Files and Finished Product

The finished product of this tutorial, as well as all project files, can be found in Tutorial 6 - OBJ Geometry Import.zip.

2.0 Importing OBJ Geometry 

If you have not already done so, run the ShapeMetriX (SMX) program by double-clicking the ShapeMetriX icon on the desktop or in your installation folder, or by selecting Programs > ShapeMetriX in the Windows Start menu.

When the program starts: 

1. Select ModelEditor to run the ModelEditor tool. 

Whenever the ModelEditor tool runs, a default blank work page opens as shown in the image below.

ShapeMetriX comes with several example images and files installed with the program. This tutorial will use an example Bench Slope geometry in a Blocky Rock Mass to demonstrate the OBJ geometry import feature. The example Bench in Blocky Rock Mass.obj file and the required images to generate the texture can be accessed through downloaded Tutorial 6 – Model Files > Input Files folder.

To import the OBJ geometry:

1. Select File > Import 3D Model > Import from OBJ
2. The Import from OBJ dialog will open automatically. Select the Bench in Blocky Rock Mass.obj from the downloaded tutorial folder. 
3. Choose the directory on your computer to save the output 3D model (*.jm3x) file.
4. Set Referencing = Referenced (generic E, N, H)

5. Set Coordinate system = Generic, Meter [m]

   

6. Click OK.

2.0 3D Model Generation

The progress bar will display the status of the 3D model generation. The 3D model will be automatically generated using the OBJ geometry input, and the texture will be projected onto 3D model if associated images are present in the input file directory.

3.0 3D Model Output

Once the 3D Model Generation process is completed, a 3D model with texture is generated and a 3D model output file (*.jm3x) is automatically saved. The resulting 3D model is displayed in the 3D viewer.

1. Inspect the generated 3D model in 3D Model Viewer. 
2. Click Close to leave ModelEditor.

This concludes the tutorial for the OBJ Geometry Import.