Tiff importing to autocad

[Strider]

Hi I am completely new to drone photography and WebODM. I have done my best with limited time and resources but need a little help sorting out exporting tiff to Audotcad and then geolocate within autocad.

I routinely use autocad with nearmap images so know how to georef tiff files using a jpw world file using the GEOREFIMG process… A youtube video from Pix4D (Pix4D Webinar: Pix4Dmapper Outputs in AutoCAD and ArcGIS // 2014 - YouTube) shows how to import a tiff to autocad then use the same GEOREFIMG process to geolocate.

When I try that same simple step using the webODM geotiff file the geolocating doesnt happen. Other threads I’ve read suggest the direct import is possible, but others suggest I need to add in 2 more steps of importign to QGIS and creating a worldfile first then importign to autcad with the worldfile as the georeferencing information needed by autocad.

Any help would be appreciated.

Dropbox folder link with an example orthomosaic tiff image and report file that I generated as a test of the drone and webodm: (https://www.dropbox.com/scl/fo/sq34a8lw5ibsil90nmc4s/h?dl=0&rlkey=k4guwrnj4zfrcwoeth2rv26dw)

[Saijin_Naib]

Our TIFFs are OGC-Compliant Cloud-Optimized GeoTIFFs, with integrated geolocation information.

If AutoCAD can’t read/process that internal metadata, then yes, you’ll need to generate a TWF (TIFF WorldFile) using something like QGIS.

[smathermather]

@Jeff_Gaudette

I asked the question to ChatGPT

Please don’t do this. Use experts, not fancy versions of uncalibrated autocorrect. We’re going to establish a policy about this for the forum, but using large language models to answer questions without expert intervention can be super problematic.

[smathermather]

@Strider

Any help would be appreciated

It’s been a long time since I’ve touched autocad, so I can no longer give specifics on process, but it’s had support for geotiffs without world files for probably 15+ years. You’ll need to load them as an explicit geospatial file.

The second solution here looks correct (Insert the Image through a Data Connection):
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/MAPIINSERT-transforms-and-scales-images-incorrectly-when-the-drawing-has-a-different-CS-assigned.html

[hemant]

I came across this step by step video related to importing Orthophoto in AutoCAD. Hope it can help you as well: Drone Survey & AutoCAD: How to Import Orthomosaic/Orthophoto and basic measurements - YouTube

[Jeff_Gaudette]

I deleted my LLM post.
I won’t share LLM on the site.
Jeff

[Saijin_Naib]

Thanks for being understanding, and no worries.

We know this stuff is super exciting and trendy right now, but there are an absolute raft of issues associated with them that we want to make sure we are out in front of.

Please bear with us while we get oriented and calibrated on this going forward

[smathermather]

@Jeff_Gaudette

I deleted my LLM post.
I won’t share LLM on the site.

I should have led with: I love your posts and participation here. Cheers Jeff.

[Strider]

Thanks Smathermather and Jeff both very helpful. Yes those steps that the AI Chat GPT provided are out of the QGIS manual I think and was the approach I used. And yes that second approach using Raster Tools in Autocad worked for me.