[GRASS-dev] [GRASS GIS] #3124: d.northarrow incosistent placement when rendering to file/screen

GRASS GIS trac at osgeo.org
Tue Aug 9 01:52:42 PDT 2016


#3124: d.northarrow incosistent placement when rendering to file/screen
-----------------------------------+-------------------------
 Reporter:  kuszinger              |      Owner:  grass-dev@…
     Type:  defect                 |     Status:  new
 Priority:  normal                 |  Milestone:  7.2.0
Component:  Display                |    Version:  svn-trunk
 Keywords:  render, file, display  |        CPU:  Unspecified
 Platform:  Unspecified            |
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 By further tests d.northarrow is rendered using at= paramter and

 * when it is a '''screen''' display: at= parameter is used as '''top-
 left''' of the graphics box containing the north arrow
 * when it is a '''file''' rendering: at= parameter seems to be the
 '''center-center''' of the northarrow (which is better, I think as
 northarrow is somehow a "central" nature graphics figure (barscale is
 linear and legend is areal)

 See jpg file attached to this ticket. File rendering is on the left,
 screen rendering is on the right of the screenshot. All cartographic
 elements are located at=20,20 by parameter (percent).

 Another discovery is that placement on the off-screen (file) rendering is
 very precise, corners/centers of gadgets fit very precisely at 20,20
 percent, meanwhile on display they don't.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3124>
GRASS GIS <https://grass.osgeo.org>



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