Bug report #6528

the export map use wrong extension name

Added by aperi2007 - about 8 years ago. Updated about 8 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Rasters
Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:invalid
Crashes QGIS or corrupts data:No Copied to github as #:15742

Description

Hi, exporting a map canvas as image georef in qgis-dev in tif format.
Has a wrong extension for world file.

the file

filename.tif should have a world file named "filename.tfw".
Instead it is named "filename.tifw"
the 'i' should no be in the extension name.

Regards.

History

#1 Updated by aperi2007 - about 8 years ago

I test also qgis 1.8

Also the qgis 1.8 has the same error.

it generate a .tifw instead of a .tfw

#2 Updated by Alexander Bruy about 8 years ago

  • Status changed from Open to Rejected
  • Resolution set to invalid

According to ESRI specifications this is correct behavior. See ArcGIS Help and EKB 17489

#3 Updated by Giuseppe Sucameli about 8 years ago

  • Status changed from Rejected to Closed

#4 Updated by Giuseppe Sucameli about 8 years ago

  • Status changed from Closed to Reopened

Alexander Bruy wrote:

According to ESRI specifications this is correct behavior.

I guess it's not the correct behavior. In

EKB 17489

I read:

The world file must follow this naming convention. If the image file name has a 3-character extension (image1.tif), the world file has the same name followed by an extension containing the first and last letters of the image's extension and ending with a 'w' (image1.tfw). If the extension has more or less than 3 characters, including no extension at all, then the world file name is formed by simply appending a 'w' to the image file name.

Saving as "tif" image I get a "tifw" wordfile though the 'w' is appended to the original extension only when the file hasn't 3-character extension.

#5 Updated by Giuseppe Sucameli about 8 years ago

  • Resolution deleted (invalid)

#6 Updated by Alexander Bruy about 8 years ago

And in ArcGIS Help

world files use the same name as the image, with the letter w appended. For example, the world file for the image file

mytown.tif would be mytown.tifw, and the world file for redlands.jpg would be redlands.jpgw. Often the naming convention
varies from this first description, using the first and third characters of the image file's suffix and a final letter
w as the world file suffix. Therefore, for mytown.tif, the world file would be mytown.tfw, or for redlands.jpg, its world
file would be redlands.jgw.

Same explanation I also see in my ArcGIS 3.2 help. So I still think that this is correct behavior.

#7 Updated by Giuseppe Sucameli about 8 years ago

  • Resolution set to invalid
  • Status changed from Reopened to Closed

Alexander Bruy wrote:

I still think that this is correct behavior.

I agree, I'm closing it.

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