[Scilab-users] Fwd: plotxxyyy

Frieder Nikolaisen Frieder.Nikolaisen at student.hs-rm.de
Thu Oct 13 08:43:46 CEST 2016 

 

Hi Jens and Samuel, 

thanks. I am going to include your tips.


Best regards 

Frieder 

On 2016-10-12 20:15, Jens Simon Strom wrote:


> Hallo Frieder,
> If you insert 
> plot(x(M),y(M),'go') after
//Writing measurement numbers
> 
> you get circle marks at the selected
points to ease their correlation to the measurement number.
> 
> Kind
regards
> Jens
>
-----------------------------------------------------------
> 
> Am
12.10.2016 18:16, schrieb Jens Simon Strom: 
> 
>> Hallo Frieder,
>> You
can independently combine stack and skip of the measurement numbers by
the code below. 
>> 
>> //Plotting measurement numbers with optional
gaps and optional stacking to avoid overlapping
>> //Generating dummy
measurement data x,y and plotting them
>> dx=0.5:50;// increment of x
>>
x=cumsum(dx);
>> y=sind(x);
>> yspan=max(y)-min(y);
>>
nM=length(x);//number of measurements
>> xdel();
>> plot(x,y,'r')
>>
plot(x,y,'b+')
>> 
>> //Input parameters for plotting the measurement
numbers with optional gaps and stacking to avoid overlapping 
>>
nstack=6;//maximum number of stacked measurement numbers
>>
hstack=0.1;//height of measurement number stack (relative to span).
hstack=0: no stacking independent of nstack 
>> ybase=-1; //base
ordinate for measurement numbers
>> step=2;// step=1: no gap, step=2:
every second measurement number, etc.
>> 
>> //Writing measurement
numbers
>> M=1:step:nM;//opted measurement numbers
>> for m=1:length(M)

>>
xstring(x(M(m)),ybase+(modulo(M(m),nstack))*hstack*yspan/nstack,string(M(m)))
>>
end
>> 
>> "How can I move the lettering above the plot (or at least to
the bottom, next to the x-axis)?" By data_bounds (see axes_properties in
the help pages) you can enlarge the y-axis beyond the y data span at
will. The y-level of the lettering is controlled by the input variable
'ybase' (see code above). 
>> 
>> Kind regards
>> Jens
>>
---------------------------------------------------------------------------------------------------------------------------------
>>

>> Am 12.10.2016 14:01, schrieb Frieder Nikolaisen: 
>> 
>>> Hello
everybody, 
>>> 
>>> I did solve the Problem with showing only 10 line
numbers, by using IF. 
>>> 
>>> printer=1
>>> 
>>> for k=1:A_size(1,1)
//Beschriftung
>>> IF K>A_SIZE(1,1)*(PRINTER/10) THEN 
>>> printer =
printer + 1
>>> xstring(x(k),y3(1),string(k)) 
>>> //
xstring(x,y,str,[angle,[box]])
>>> end 
>>> set(handles.Anzeige,
'string', 'Diagrammbeschriftung ' + string(k) + ' von ' +
string(A_size(1,1)))
>>> end
>>> 
>>> The line numbering is connected to
the y-axis. How can I move the lattering aboth the plot (or at least the
bottom, next to the x-axis)? (attached plot:
subplot_with_line_number_2_tenth.gif)
>>> 
>>> About Jens help: 
>>>

>>> I attached three plots: the stacks Picture are with the Code of
Jens. Stacking is really nice, but I do not need every line number. With
921 data Points, it is already unreadable again. But thanks for your
ideas, the Code is great for learningn anyway. 
>>> 
>>> Cheers
>>> 
>>>
Frieder 
>>> 
>>> On 2016-10-12 11:48, Jens Simon Strom wrote: 
>>>

>>>> Hello Frieder,
>>>> Your plots look better now. You can avoid
overlapping of measurement numbers by sawtooth stacking them. See
example code below.
>>>> 
>>>> xdel();
>>>> //Generating dummy
measurements x,y
>>>> dx=0.5:50;
>>>> x=cumsum(dx);
>>>> y=sind(x);
>>>>
nM=length(x);//number of measurements
>>>> plot(x,y,'r')
>>>>
plot(x,y,'b+')
>>>> //Plotting the measurement numbers in stacks to
avoid overlapping 
>>>> nstack=6;//number of stacked measurement
numbers
>>>> hstack=0.2;//height of measurement number stack (relative
to window height)
>>>> ybase=-0.9; //base ordinate for measurement
numbers
>>>> yspan=max(y)-min(y);
>>>> for m=1:nM//measurement
number
>>>>
xstring(x(m),ybase+(modulo(m,nstack)-1)*hstack*yspan/nstack,string(m))
>>>>
end
>>>> Kind regards
>>>> Jens
>>>>
------------------------------------------------------------------------------------------------------------------------------
>>>>

>>>> Am 12.10.2016 10:52, schrieb Frieder Nikolaisen: 
>>>> 
>>>>>
Hello, 
>>>>> 
>>>>> thank you for all the feedback and help. It's
really great. 
>>>>> 
>>>>> I used the idea of Jens Simon Strom combined
with some help from last week: 
>>>>> 
>>>>> //Datensätze 
>>>>> x1 =
(A(:,1) - A(1,1)) * 24 * 3600;
>>>>> y1 = A(:,y_1);
>>>>> y2 =
A(:,y_2);
>>>>> y3 = A(:,y_3);
>>>>> drawlater()
>>>>> 
>>>>> subplot(3,
1, 1)
>>>>> co = color("green"); 
>>>>> plot2d(x1, y1, co);
>>>>> a =
gca();
>>>>> b.font_color = co; 
>>>>> a.foreground = co;
>>>>>
ylabel(string(kT(y_1)),"color",co)
>>>>> a.x_location = 'top';
>>>>>

>>>>> subplot(3, 1, 2)
>>>>> co = color("blue"); 
>>>>> plot2d(x1, y2,
co);
>>>>> b = gca();
>>>>> b.font_color = co; 
>>>>> b.foreground =
co;
>>>>> ylabel(string(kT(y_2)),"color",co)
>>>>> b.axes_visible(1) =
"off"; 
>>>>> //b.marings = [0.1 0.1 0.3 0.5]; 
>>>>> //b.filled =
"off"; 
>>>>> subplot(3, 1, 3)
>>>>> co=color("red");
>>>>> plot2d(x1,
y3, co); 
>>>>> c = gca(); 
>>>>> c.font_color = co; 
>>>>> c.foreground
= co; 
>>>>> //c.axes_visible(1) = "off"; 
>>>>>
ylabel(string(kT(y_3)),"color",co)
>>>>> //xlabel(string('Zeit
[Sekunden]'), co)
>>>>> x= (A(:,1) - A(1,1)) * 24 * 3600;
>>>>> for
k=1:A_size(1,1) //Beschriftung
>>>>> xstring(x(k),x(1),string(k)) //
x(1) always 0
>>>>> // xstring(x,y,str,[angle,[box]])
>>>>>
disp(x(1))
>>>>> end
>>>>> //c.marings = [0.1 0.1 0.5 0.3]; 
>>>>>
//c.filled = "off"; 
>>>>> 
>>>>> drawnow()
>>>>> 
>>>>> The printed
plots are attached. I did plot different paramters, as I can choose then
in my GUI.
>>>>> 
>>>>> That works well: 
>>>>> 
>>>>> * Three plots,
having the same x axis. 
>>>>> * x axis on the top and bottom
>>>>> *
Line NUMBERS FITTING THE X AXIS. 
>>>>> 
>>>>> That does not work:

>>>>> 
>>>>> * showing a FEW LINE NUMBERS only, for reading (best case:
Fitting the automatic shown times in sec
>>>>> 
>>>>> Problem: I cannot
tell, how many datapoints there are going to be. So it mus be choosen
automaticly. 
>>>>> 
>>>>> Best regards 
>>>>> 
>>>>> Frieder 
>>>>>

>>>>> On 2016-10-11 21:04, Samuel Gougeon wrote: 
>>>>> 
>>>>>>
Hello,
>>>>>> 
>>>>>> Le 11/10/2016 14:46, Rafael Guerra a écrit :

>>>>>> 
>>>>>>> Hi, 
>>>>>>> 
>>>>>>> I was not able to follow the
whole discussion
>>>>>> Neither did i,
>>>>>> 
>>>>>>> but concerning
your subplot challenge: "_… I cannot add a second x-axis in a subplot by
newaxis(). How to add a x-axis by using subplot?_" and your last
example, 
>>>>>>> 
>>>>>>> Couldn't you add a 4th subplot at the bottom
in order to plot the 2ndx-axis (say by plotting only zeros)?
>>>>>>
.
>>>>>> Why not using drawaxis() as already suggested? drawaxis() is
made for this kind of situation.
>>>>>> In this thread, no logarithmic
axis is involved. So i do to catch the reason of ignoring
drawaxis().
>>>>>> 
>>>>>> By the way, IMO, a drawing of what exactly is
required would be clearer than hundred of lines of description, with
schematic curves, axes, arrows linking curves to their multiple axes in
x and y.
>>>>>> 
>>>>>> BR
>>>>>> Samuel Gougeon
>>>>> 
>>>>>
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