Warning vs Error : What to Do If You Get a Warning or an Error
You may at times encounter various pop-up notifications when you upload data to your AirWorks project. “Warnings” will be displayed in blue font, and can be considered for informational purposes only. Error messages are displayed in red font and need to be addressed before proceeding to processing your order.
|
message |
file |
status |
issue |
resolution |
|---|---|---|---|---|
|
Could not find a valid coordinate system in the tif/las file. |
tif/las |
ERROR |
No coordinate information in file. |
Re-export tif/las files and ensure they all have a CRS embedded. |
|
Could not find an EPSG code in the tif file. |
tif/las |
ERROR |
No coordinate information in file. |
Re-export tif/las files and ensure they all have a CRS embedded. |
|
The supplied tif’s Ground Sampling Distance [#] does not satisfy the condition GSD < 0.25 |
tif |
WARNING |
The image resolution is poor (worse than 0.25 us survey feet per pixel) |
Site should be re-flown with better camera settings or lower to the ground. |
|
Converted 8bit color palette to 24bit RGBA. |
tif |
WARNING |
Palette tables allow smaller files but less flexible with our tool set, so we convert to a 4 channel format. |
None required. |
|
Removed invalid color bands from tif. |
tif |
WARNING |
We require only 4 bands, RGBA. We’ve removed one that wasn’t necessary. |
None required. |
|
Added missing alpha band to tif. |
tif |
WARNING |
We only received RGB bands, we added an alpha band. |
None required. |
|
Reprojected tif/las to cartesian CRS EPSG:[#] |
tif/las |
WARNING |
The tif provided had a spherical frame (WGS84). We transformed it to a cartesian frame (UTM). |
None required. |
|
Added valid nodata value to tif. |
tif |
WARNING |
There were regions in the data with no data. Our alpha band requires a nodata value of 0, which we applied to these regions. |
None required. |
|
Converted laz to las. |
las |
WARNING |
We converted from laz (compressed) to las (uncompressed) before pushing it through our pipeline. |
None required. |