Opened 13 years ago

Closed 13 years ago

#695 closed defect (fixed)

Can't create a location using Select Coordinate System option with WXGUI Location Wizard

Reported by: voncasec Owned by: grass-dev@…
Priority: major Milestone: 6.4.0
Component: wxGUI Version: 6.4.0 RCs
Keywords: Location Wizard Cc: helena
CPU: Unspecified Platform: Linux


I can't specify a UTM projection using the WXGUI's location wizard unless I also have a specific transformation parameter to select. For example, if I wanted to create a location using a UTM Zone 11 Projection with the NAD83 datum, I can only proceed if I choose one of the transformation parameters specific to either Florida, Maryland,Tennessee, Wisconsin or Washington. Since none of these transformation parameters apply, I have no option to select. The Next button remains 'Greyed' out unless an option is selected. Because Next remains 'Greyed' out, I am not able to complete the process of creating a location.

Either a Default transformation parameter for the whole region should be added that is selectable, or people should be able to proceed without choosing a local transformation parameter.

Change History (4)

comment:1 by neteler, 13 years ago

Which parameters did you expect? We may be able to add them.


in reply to:  1 comment:2 by martinl, 13 years ago

Replying to neteler:

Which parameters did you expect? We may be able to add them.

From ML:

I shouldn't have listed this as a major defect, because there are already alternative options for selecting a coordinate system (e.g. using EPSG code or proj4 definition). Its more of an inconvenience.

If I go through the location wizard and choose the "select EPSG code of a coordinate system" option, I can navigate through the list, chose a UTM projection using the NAD83 datum (e.g. Zone 10 N). After hitting the next button I am given the option to choose my datum transformation option. The first option says it is the default used in the whole nad83 region (towgs84 = 0,0,0). However this default datum transformation option is not available when I go through the "Select Coordinate System" option using location wizard.

I guess I was expecting a "default" datum transformation parameter when creating a location using the choose coordinate system option, similar to how it exists with the select EPSG code option.

I have only noticd this with NAD83 projections so far.


comment:3 by cmbarton, 13 years ago

Cc: helena added

This is now fixed in develbranch_6 r39309. Please test on Linux and Windows platforms so this can be backported to release branch and trunk.


comment:4 by cmbarton, 13 years ago

Resolution: fixed
Status: newclosed

Fixed in r39309. Closing.


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