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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hello Eric, Marcus,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>before I explain my problem once more I just want to add that I find the charts functionality already quite useful. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>As I said I just updated my vtk stuff and I can imagine it must have been quite some work to get to this point.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I appended a screenshot illustrating the problem. Since I don’t know how this appears on the mail list I just describe briefly.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have a scene with a vtkImageItem to show some 2D matrix data. Around the image I have axes (vtkAxis objects) with<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>appropriate ticks, tick labels and axes titles. The problem is that the axes titles overlap with the tick labels. E.g. for the<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>case of the X axis , the title should be lower such that it does not touch the labels, but there does not seem to<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>be a way to do that as of now.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A possible low level solution would be a way to specify some vertical (horizontal axis case) or some horizontal (vertical axis case) offset<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>for the position of the titles (in pixel or font size units).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In principle of course the vtkAxis object could calculate such an offset by itself, since it has access to both<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>the labels’ and the titles’ text properties.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>What do you think ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Daniel<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Eric E. Monson [mailto:emonson@cs.duke.edu] <br><b>Gesendet:</b> Dienstag, 7. Dezember 2010 13:54<br><b>An:</b> Frese Daniel Dr.<br><b>Cc:</b> vtkusers@vtk.org<br><b>Betreff:</b> Re: [vtkusers] Positioning titles within vtkAxis<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hey Daniel,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>It does seem like SetLineOffset should do something like what you want, but I think they way the label text is applied with VerticalJustification probably nullifies any line offset setting. Line spacing shouldn't matter for a single line of text.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So, the adjustments you want are just not implemented. Marcus, the developer, has worked hard to get the labels right, though, so if you have a use case where the labels are running into the axis ticks maybe you should describe the situation and send a screen shot – it may be something that needs fixing. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>You're right that the charts are still under development, but some of the core functionality has settled down, and as you said, the current implementation is better than the 5.6.1 version.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>-Eric<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span class=apple-style-span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>------------------------------------------------------</span></span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><br><span class=apple-style-span>Eric E Monson</span><br><span class=apple-style-span>Duke Visualization Technology Group</span><br><br></span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Dec 7, 2010, at 3:35 AM, Frese Daniel Dr. wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Hi all,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>I have a problem positioning an axis title relative to its vtkAxis object.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Basically, if I draw a horizontal X-axis, the assigned title is written such that it overlapps with the<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>tick labels. Reading through the docs, I got the impression that I should be able to introduce a<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>vertical offset between the drawn axis and the titel by using either a call to<o:p></o:p></span></p></div><div><p class=MsoNormal style='text-indent:35.0pt'><span style='font-size:10.0pt;font-family:"Courier New";color:green'>Xaxis->GetTitleProperties()->SetLineOffset(offset_in_pixel)</span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>or by <o:p></o:p></span></p></div><div><p class=MsoNormal style='text-indent:35.0pt'><span style='font-size:10.0pt;font-family:"Courier New";color:green'>Xaxis->GetTitleProperties()->SetLineSpacing(scale_factor).</span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>But neither call seems to have any effect.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Moving from 5.6.1 to the latest vtk git source tree I noticed that the chart stuff seems to have<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>improved greatly (most functions a joy to use !), but it still seems to be a work in progress.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>So am doing something stupid and do I miss something here or is this feature just not<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>implemented yet ?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Daniel<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div></div></div></div></div></body></html>