topic Re: Warp_management does work in ArcGIS Spatial Analyst Questions

Warp_management does work

Anonymous User — Sat, 20 Mar 2021 02:29:22 GMT

Hi,

I am using ArcGIS Pro and trying to georeference a set of aerials (.tif) photos. I am using Warp_management tool. I have placed 3 GCP on both target and source images. The result image it produces is a copy of the source image. The target image is not georeferenced. I have the python file attached, however could not attach the tif files due to size of the files.

I am new to python and not sure what I do is correct.

Your help is appreciated.

Re: Warp_management does work

DanPatterson — Sat, 20 Mar 2021 05:04:51 GMT

One set of coordinates seems to be projected and the other geographic.

You can't "warp" from planar to spherical. Get the decimal degree coordinates in the same coordinate system as the projected coordinates, then you can warp when you get more than 3 points since 6 for a second order is the recommended minimum

Re: Warp_management does work

Anonymous User — Sat, 20 Mar 2021 21:18:11 GMT

Thank you, Dan,

I have assigned the projection to the target image and with 6 GCP. It creates a blank image. I have a screenshot of the image attached.

Your help is appreciated.

Re: Warp_management does work

DanPatterson — Sat, 20 Mar 2021 23:55:54 GMT

first did it appear in the correct-ish spot without warping?

second, right-click, zoom to layer? nothing?

third blank map, no base map, nothing? If something examine the map frame properties and report

ditto, if warped image appears but zoom to layers goes strange.

Re: Warp_management does work

Anonymous User — Mon, 22 Mar 2021 00:19:34 GMT

thank you!

i got it

Re: Warp_management does work

DanPatterson — Mon, 22 Mar 2021 03:50:14 GMT

so what was the issue?