projection of 2D pixel

[arafat]

Hi all, rookie question here so bare with me

I have a marker and I can get the position by marker.position
I want to calculate the Euclidian distance between this marker and a projection of a 2D pixel.
I use camera.unproject(2D pixel) to project a vector and then calculate the distance.

My question: is this the correct way or do marker.position and camera.unproject generate vectors in the same coordinate system??

thanks in Advance

[Alexey Pasumansky]

Hello arafat,

Do you mean to project the 2D pixel on the existing surface and get that coordinates? Or you are planning to calculate the distance between the marker.position and the ray that goes through the camera.center and 2D pixel of the corresponding image?

[arafat]

I mean the first

thanks for responding

[arafat]

update: I was able to do it using this code

Code: [Select]

                        coords_2D = Metashape.Vector([x, y])
                        sensor = camera.sensor
                        pc_pred = custom_chunk.point_cloud.pickPoint(camera.center, camera.transform.mulp(sensor.calibration.unproject(coords_2D)))
                        pc_pred.size = 4
                        pc_pred[3] = 1.
                        v=custom_chunk.crs.project((custom_chunk.transform.matrix*pc_pred)[0:3])

[Jordan Pierce]

Hello arafat,

Do you mean to project the 2D pixel on the existing surface and get that coordinates? Or you are planning to calculate the distance between the marker.position and the ray that goes through the camera.center and 2D pixel of the corresponding image?

Hi Alexey Pasumansky, I would be interested in knowing how to do the latter.