🗺️3.1 Start Tutorial
Here we take a piece of data as an example to show you the whole process from photo to model.
1. Installation
Go to the official website https://www.get3d.ai/downloads/ and download Get3D Mapper in the Resources-Downloads interface.
After the download is complete, double-click the Get3D Mapper.exe to install the software.
Accept Get3D's privacy policy for auto-installation, if you want to see detail, you can click it.
After finish installation, double-click to open the Get3D Mapper software.
2. License
After entering the Get3D Mapper software interface for the first time, you need to obtain a licence to use the software for modelling.
There are two ways to obtain license: the Standard Licence and the Trial Licence. The Standard Licence includes Online login licence and Offline import licence.
2.1 The Trial License
Trial licence requires an account, if you don't have an account, you can go to the official website to register first. By default, one account can be bound to one machine for trial licence.
Get3D Mapper trial license supports unlimited project creation within 30 days, and a single project can import 5000 images.
2.2 The Standard License
The Standard Licence needs to be purchased from the official website, and Get3D Mapper supports yearly or monthly payment.
Once the purchase is complete, log in to your account in the software interface and the available licenses under your current account will be displayed.
Select the available licenses to activate, the activated licenses will show the expiry time, all the functions can be used during the period, and more than 100,000 images can be imported for modelling at one time.
The other way of obtaining The Standard Licence applies when the PC is offline.
Firstly, export the machine code, and then in the personal account centre on the web side, enter the machine code to get the license file. Drag the serial code in the license file into the software and click Activate to complete the binding of machine code and license.
Activating the license using either method displays detailed license information.
Instructional Video Address: https://www.youtube.com/watch?v=fiCy3MCq2n4&t=22s
3 Create Project & Open Project
When use the software for the first time, double-click to create a project. g3D will generate a project folder containing .m3d project files. When you open the project later, you can double click the .m3d file directly.
4 Import Image
The main page of the software is the data management page where you can import data. Click Add Photos to bring up the Import Photo Pose Setting window.
Click Add Aerial Images to import the data folder into the software.
After importing, the interface before positioning is as follows:
5 Photo Positioning
There are two ways to position imported images.
5.1 EXIF positioning
The first is to right-click directly on the image containing Exif information to read the Exif.
The interface after successful positioning is as follows:
Click "OK" in the lower right corner to finish importing and positioning photos.
5.2 Pose File Positioning
The second way of positioning is based on the pose file. Select the photo group, right click and choose pose positioning, import pose file.
For the photos after importing the pose file, select any group and the pose setting screen will appear below.
Select the correct Spatial Reference System to correspond each column of data to its coordinate system units.
Then click Apply to Photo Group in the lower right corner.
Click "OK" in the lower right corner to complete the photo import and orientation.
Instructional Video Address: https://www.youtube.com/watch?v=1oA6RwfNr54
6 Engine Setting
When the photo positioning is finished, click Apply in the bottom right corner to save the block.
Click Settings on the top menu bar to bring up the Engine Settings window.
There are two paths that need to be specified for the Engine Setting: the Task Directory and the Local Engine Directory.
Just make sure the two paths are the same to start the Engine.
Click Start Local Engine to bring up the Engine screen.
The engine status is Waiting when no tasks have been submitted. Engine specific information can be viewed in the Engine window.
7. Adjustment(Aerial Triangulation)
Once the Engine Setting is complete, you can click Submit AT. If you do not fill in the sensor parameters and focal length information, a prompt box will pop up, select Fill to fill in the camera information.
Fill in the correct sensor parameters and focal length information according to the camera model.
Notethere is a difference between the focal length of the lower view lens and the focal length of the side view lens, please fill in correctly.
Once the camera information is filled in, continue back to the General view and click Submit AT to bring up the AT Settings window, click Submit.
Aerial Triangulation is submitted, calculations pending... ....
At the end of Aerial Triangulation, the generated point cloud model can be viewed in the 3D view
Instructional Video Address: https://www.youtube.com/watch?v=dEJZR1Qh178
8. Reconstruction
For blocks that have completed Aerial Triangulation calculations, right-click New Reconstruction to enter the Reconstruction screen.
In the Reconstruction Settings screen, you can perform operations such as selecting Coordinate System and setting the width of each modeling’s Tile.
By clicking Submit Production, you can select the type of production you want to output. Get3D Mapper supports many types of production output.
Click on Select Tiles to selectively model parts of the entire interior of the area.
After all the settings are done, you can click OK to submit the production and enter the reconstruction calculation... ...
After modelling, you can click 3D View to view the modelling effect within the Mapper software interface.
You can also choose to view the product and link Get3D Viewer software with one click to view the model.
Instructional Video Address: https://www.youtube.com/watch?v=-Sgab5bIqT4
APPENDIX
9 Point Cloud Data Fusion Modeling
Get3D Mapper supports importing laser point cloud data and fusing it with image data for modelling. Multi-source data fusion modeling can solve the local texture distortion, feature voids and other defects in the 3D modeling process.
Image data is first imported for aerial triangulation (Relative Orientation).
For data containing control points, Absolute Orientation can be completed before importing the laser data for fusion modelling.
Imports laser data: The laser data consists of .las point cloud files, and .txt point cloud trajectory line files.
Click Import Point Cloud Data, select the correct coordinate system, and import both the point cloud file in .las format, and the trajectory line file in .txt.
NoteThe correct coordinate system should be selected for both files.
Where the trajectory line file needs to correspond to: Time, X, Y, Z
Click OK and the software automatically matches the point cloud data with the track line. The two correspond to each other and the submission is successful.
Click Tiling in Point Cloud Process to slice the tiles. Once you have finished slicing the tiles, you can view both the point cloud trace lines and the image photo shelf in the 3D view.
Right click to submit Reconstruction for multi-source data fusion modelling.
10 Reconstruction Constraint
In practical engineering, it is often encountered, for example, a large area of water surface with few feature points, in the modelling calculation, due to the lack of feature points, it may lead to the water surface part of the model is broken. For this situation, reconstruction constraints are needed.
Reconstructing constraints requires KML files, which is a versatile geographic data format. Both Get3D Viewer and Get3D Mapper can draw KML files.
10.1 Draw KML file in Get3D Viewer and import it to Get3D Mapper.
Open the OSGB model file in the Get3D Viewer and select "Add polygonal" in the left menu bar under the labeling information option.
Left-click to draw constraint faces where reconstruction constraints are required. Double left click to end the drawing.
Right click to export the constraint surface and select *.KML file format.
10.2 Draw KML in Get3D Mapper
For the model that has been run out, in the Reconstruction Setting interface, click Constraint Setting to enter the constraint setting interface.
In the constraint setting interface, you can choose to import constraints or draw constraints.
Click Draw Constraints and left click to draw the constraint surface for the place where reconstruction constraints are needed. Double-click the left button to end the drawing.
After drawing, you can edit the name, type and colour of the constraint.
The constraint colour can be picked up by looking at the image thumbnail and picking up the reconstructed area colour.
When you have finished drawing the constraint, click Submit Constraint.
Go back to the General screen of the Reconstruction product, select the constraint area in the Update Type, right-click on submit Update, then the tiles with constraint settings made are resubmitted.
It can be seen that the model completing the reconstruction constraint repairs the hole that was broken before the constraint.
https://youtu.be/XIsGnBwlvQw
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