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1

Python and Java API / How to export orthomosaic with sqare pixel?

« on: August 21, 2024, 02:56:53 PM »

Hello!
I am trying to create a task to export orthomosaic with specified resolution in meters.
When do it manually (in metashape withot python), i achive it by the next steps:
1. I open "export orthomosaic" menu
2. I set resolusion in meters to 0.1
3. The pixel size (m) correspondingly changes for new resolution. If it isn't sqare, i simply copy res in X into Y. (as i see it changes te res in meterers a littlebit, but it's not a bit deal).

Now i am trying to recreate this behaviour in python code. For now  i have this:

Code: [Select]

    def export_ortho(self, export_path, resolution):
        task = Metashape.Tasks.ExportRaster()
        task.source_data = Metashape.OrthomosaicData
        task.path = export_path
        task.resolution = resolution
        return task

As far as i understand, i have to specify resolution_x and resolution_y instead of resolution, but i don't understand how to calculate them.
Note: I work in EPSG::3857

2

Python and Java API / How to delete tie points, orthophotomosaic and dem data from project via python?

« on: August 12, 2024, 03:56:40 PM »

I need to delete points, orthophotomosaic and dem from project files.
I've tried to do it with several methods, including
```python
    def remove(self):
            self.doc.chunk.tie_points = None
            self.doc.chunk.remove((self.doc.chunk.elevation,))
            self.doc.chunk.remove((self.doc.chunk.orthomosaic,))
        self.doc.save()
```
This does delete poiters to the data, but the data itself still using disk space.