Some questions from a newbie
Posted: Sun Apr 28, 2019 7:40 pm
Hi,
I've been taking a look at DH Basic today. I haven't even had a chance to use it with my Mavic Air yet but I do have a few questions.
I'm interested in doing a photogrammetry project the site is only 6m x 6m x 10m tall.
I drew the building and the surrounding obstacle trees and chose the Inspection->Site plan. It created 4 separate plans of 12, 30, 34, 34 images which seems a lot but then I guess this is driven by the overlaps selected when choosing the plan.
The first plan (of the roof) has an option to Simplify which reduces the number of images, but the other plans do not.
1. Presumably I cannot change my overlap parameters after generating the plans?
2. Why does the first plan have a simplify option but the others do not?
3. Why are 4 separate plans generated rather than a single one - surely it's not expecting to get through 4 batteries?
4. Can plans be joined to each other?
I saved my plans and then thought I would start a new one elsewhere, but it started adding more plans to the existing 4 rather than starting again with none.
5. How do I start a new plan?
My second site has an OSM plan so I accepted that, however the outline of this is way off what is shown on the map, as shown in the screen shot:
https://drive.google.com/open?id=18nPTv ... We-SGCh02j
6. This is concerning, which is "correct", the sat image or the outline?
7. Is there a way to calibrate the actual GPS reading when on site against the plan?
I then started to look at creating a complex manual plan for another plan (video rather than photogrammetry this time) and quickly started to find it a very fiddly process on my admittedly aged Nexus 7.
8. Are there plans to support creating plans using a Windows or Web UI? If so is there a rough ETA? (I want to know whether to be patient and wait a couple of months, or grit my teeth and wrestle with the Nexus 7).
Many thanks,
Jason
I've been taking a look at DH Basic today. I haven't even had a chance to use it with my Mavic Air yet but I do have a few questions.
I'm interested in doing a photogrammetry project the site is only 6m x 6m x 10m tall.
I drew the building and the surrounding obstacle trees and chose the Inspection->Site plan. It created 4 separate plans of 12, 30, 34, 34 images which seems a lot but then I guess this is driven by the overlaps selected when choosing the plan.
The first plan (of the roof) has an option to Simplify which reduces the number of images, but the other plans do not.
1. Presumably I cannot change my overlap parameters after generating the plans?
2. Why does the first plan have a simplify option but the others do not?
3. Why are 4 separate plans generated rather than a single one - surely it's not expecting to get through 4 batteries?
4. Can plans be joined to each other?
I saved my plans and then thought I would start a new one elsewhere, but it started adding more plans to the existing 4 rather than starting again with none.
5. How do I start a new plan?
My second site has an OSM plan so I accepted that, however the outline of this is way off what is shown on the map, as shown in the screen shot:
https://drive.google.com/open?id=18nPTv ... We-SGCh02j
6. This is concerning, which is "correct", the sat image or the outline?
7. Is there a way to calibrate the actual GPS reading when on site against the plan?
I then started to look at creating a complex manual plan for another plan (video rather than photogrammetry this time) and quickly started to find it a very fiddly process on my admittedly aged Nexus 7.
8. Are there plans to support creating plans using a Windows or Web UI? If so is there a rough ETA? (I want to know whether to be patient and wait a couple of months, or grit my teeth and wrestle with the Nexus 7).
Many thanks,
Jason