Hi Micro, On 28/01/13 16:17, Mirco Schmidt wrote: > I've got a plot for the whole year but can't find the ability to plot just a > single week or month or maybe from date to date... Except I copy the data I > want to a new CSV and plot this one… Is this possible with Veusz or do I've > to stick with creating new CSV's and new plot's for each detail view?
The easiest way to do this is with the Create dataset feature which allows you to derive one dataset from another, including slicing a dataset into segments. I've attached your example .vsz file with a couple of dataset slices named LeistungJanuary, LeistungszeitJanuary, LeistungFebruary, and LeistungszeitFebruary which use slicing to extract the January 2011 and February 2011 portions of the dataset (I think - the ranges might not be precise but you'll get the general idea from the expression). I've then used those derived datasets in the January 2011 and February 2011 charts. Unfortunately I don't know of a way of easily determining the specific numeric ranges to use (in this case I just opened the CSV and figured out each day has 96 readings and calculated the ranges accordingly). There might be some function that can be used for that - but if not you could add one via the Edit / Custom definitions... menu item. Custom functions added there can be used in the definition of new datasets. As for generating multiple similar plots, the Tools / Widgets / Clone for datasets... menu option may prove useful but it's not something I've used personally so I'm not sure. > And there's a second challenge: I've attached the PDF export of the plot > which show's that there a part of the plot that contains no data. I'ld like > to disable this and add some space after the MAX of 200kW so the peak doesn't > reach till the top of the plot… Select the y-axis of the graph in question and do one of two things: manually increase the "Max" property (defaults to "Auto" but you could enter, for example, 250). Alternatively, if you want to do the same thing graphically you can drag the second black square at the top of the axis on the display (that's the one that sits to the right of the first black square which is actually on the axis line). Drag it upwards to increase the maximum and you should see the graph line squish down a bit. Cheers, Dave.
THM_GI_Nr1_Lastgang.vsz
Description: application/veusz
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