Problem with making GeoTIFF files

Q&A
1

I am trying to make a GeoTIFF file with GMT, which I could then view with Google Earth. Here are the commands I use:
gmt psxy RefCoord_70.txt -JB-96/22/29.5/45.5/6i -R-130/-64/22/52 -Sc0.025i -CBackAzi_cyclic.cpt -V > ReflectionPts_AllwoUW_standard_RectOverlap_2deg.ps
gmt psconvert ReflectionPts_AllwoUW_standard_RectOverlap_2deg.ps -W+g -Tt -D../KMLFile -V

However, the TIFF image generated by these commands doesn’t appear at the correct location and has the wrong size when it is opened in Google Earth. I am including my input data table and the CPT file in the attached ZIP file. I am using GMT 5.4.5. Thanks a lot! TableNCPT.zip (554.0 KB)

Tianze

2

A couple of things.

  1. You should have believed on what the psconvert -W warns you about.
  2. I though we guessed better the Portrait/Landscape issue but at lest in this case you must use Portrait
  3. You probably want transparency too

So, try this

gmt psxy RefCoord_70.txt -JB-96/22/29.5/45.5/6i -R-130/-64/22/52 -Sc0.025i -CBackAzi_cyclic.cpt -B0 --MAP_FRAME_TYPE=inside -P > lixo.ps

gmt psconvert lixo.ps -W+g -TG
3

That works. Thank you very much!

4

Hi Tainzeliu,

I tried to insert the tiff image produced using the refined command by Joaquim. Still it did not fit in size and location to Google Earth. I have my Google Earth installed in Linux-ubuntu. I also use the latest version of GMT.

Yacob

5

Works fine on Windows, and the image is correctly referenced.

image

6

Thanks, Joaquim,

Here is mine from my Linux box.

kml1
kml1612×639 120 KB

7

Thanks again Joaquim. It works now as soon as I updated my Google Earth apps.

/Yacob