So I have some GCP items I want to add to the interface. When I put the txt file with the GCP locations in nothing shows up on the map side of things. Here is my file for my GCP
WGS84 UTM 16N
What am I doing wrong. Thanks
9 January 2021 17:29
Bogwan I think your coordinate string WGS84 16N is incorrect. The coordinate you provide look like lat + long. Maybe try this string .
WGS 84 - WGS84 - World Geodetic System 1984, used in GPS - EPSG:4326. It should create a gcp file in the correct utm zone. Good luck
I attempted what you suggested and still no go
9 January 2021 18:39
Mmm. Let me take a look. I’m not in front of my computer right now. I’ll check when I get back.
epsg:4326. I’m fairly certain we support that.
You’ve tried this?:
+proj=longlat +datum=WGS84 +no_defs
Tried both and no luck.
So heading to bed look at it tomorrow.
10 January 2021 04:13
Got it ! It was staring me in the face! No letters - drop the the N and W . West longitude need a preceeding minus sign - like this.
At the yacht club
10 January 2021 04:27
Actually in GCP Pro the trailing N and W dont seem to make a difference. The preceding minus sign does.
10 January 2021 04:58
Are you using the Ground Control Point Interface or GCP Editor Pro?
10 January 2021 15:29
Ok, in the documentation for POSM GCPi
Create a GCP list that only includes gcp name (this is the label that will be seen in the GCP interface), x, y, and z, with a header with a proj4 string of your GCPs (make sure they are in a planar coordinate system, such as UTM.
Blockquote . I think you need to change the settings on your GPS unit or convert the lat+longs to a planar coordinate system- like WGS84 UTM 16N. I didn’t realize GCPi only take planar coordinates. Sorry for the confusion.
9 February 2021 15:29
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