[Qgis-developer] Composer grid issue

[John C. Tull]

Hi Marco,

As always, thanks for your great work and progress on the composer!  
I'll look forward to testing your changes.

Cheers,
John

On Oct 19, 2009, at 11:26 PM, Marco Hugentobler wrote:

> Hi John
>
> Thank you for reporting. I'm currently implementing the possibility  
> to rotate
> the composer map and this changes a lot in the composer grid code.  
> Therefore,
> I'm going to address this issue after the rotation code is in trunk.
>
> Regards,
> Marco
>
> Am Montag, 19. Oktober 2009 22.44:56 schrieb John C. Tull:
>> Marco,
>>
>> I was excited to see the new map composer grid feature. I tried it  
>> out
>> on some field maps last week and found out that the grids were not
>> accurate. I believe you might be able to reproduce an error with the
>> attached test file. It appears to be a dpi issue, for some reason.
>>
>> Here are my steps:
>> 1) Open a new qgis canvas and add the attached shapefile.
>> 2) Verify that the projection (CRS) is set to epsg 26911 for the
>> project.
>> 3) Zoom in to a subset of the grid at approximately 1:100000 scale.
>> 4) Open the map composer and add the map canvas to the composer  
>> canvas.
>> 5) Turn on the composer grid with a 5000x5000 spacing.
>> 6) Now, zoom in the map composer 4 or 5 times.
>> 7) With the map layer selected, update the preview and note the  
>> offset
>> between the two grids.
>> 8) Output a png image at 300 dpi (should look correct).
>> 9) Output a png image at 200 dpi (the offset should show).
>>
>> On another note, it would be nice to be able to suppress the
>> scientific notation of the grid labels. In the UTM example I have,  
>> the
>> scientific notation is actually a larger label than the full integer
>> value.
>>
>> Cheers,
>> John
>
> -- 
> Dr. Marco Hugentobler
> HUGIS - GIS programming and consulting
> Webereistrasse 66
> CH-8134 Adliswil
> marco at hugis.net
> http://homepage.hispeed.ch/hugis