Comments (37)
pay attention on lines 33 and 358, those are places i replaced
Original comment by [email protected]
on 31 Jan 2011 at 9:12
from achartengine.
btw, good library thanks for it :) I'm gonna use it in my program. Just correct
it a bit :)
Original comment by [email protected]
on 31 Jan 2011 at 9:12
from achartengine.
You can eventually send me some code patches.
Original comment by [email protected]
on 3 Feb 2011 at 12:34
- Added labels: Priority-Low
- Removed labels: Priority-Medium
from achartengine.
i'll send you the patches soon. I can't give you well tested code due to lack
of time, but the main improvement will be there, so you will be able just to
correct it a bit.
Now i'm using the library with Maps instead of Arrays. It works very fast
displaying graphs of three accelerometer axises, even when the number of points
reaches 100 000 for each axis.
Original comment by [email protected]
on 3 Feb 2011 at 12:47
from achartengine.
I've just downloaded the fresh version from repository and fixed
XYChart.java
XYSeries.java
There are those files and diffs in attachment. When you apply those patches two
errors occur in BarChart and RangeBarChart since there is no more method
series.getY.
I didn't fix them as I don't know the library internals so well. For you it
will not take a lot of time.
The library is really good so i think it should switch to Maps instes of Lists
as Maps are much faster with huge amount of data. If you have some questions
about application of these fixes, feel free to contact me (sky___pe
alexander.ponomarev.0 )
Original comment by [email protected]
on 12 Mar 2011 at 9:37
Attachments:
from achartengine.
Does anyone have an update on this issue? I'm considering repeating this same
work, unfortunately, and I'm not excited to re-invent a wheel if someone has
one they like to share :)
Original comment by [email protected]
on 16 Jun 2011 at 7:56
from achartengine.
I can share my version of the library with you, it's 2 moths old though.
Original comment by [email protected]
on 19 Jun 2011 at 3:25
Attachments:
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If there is anyone that managed to apply this change, can you please provide an
up to date patch?
Original comment by [email protected]
on 27 Jul 2011 at 3:59
from achartengine.
I sent you diffs and the source before, sorry now I just have no time
completely to make a fresh patch. Just replace your lists with maps and it
starts work really fast with any amount of data: millions of points.
Original comment by [email protected]
on 28 Jul 2011 at 12:07
from achartengine.
Anyone have this merged? I did a cursory review, and the code looks
substantially changed since alex put together the diff...
This would be really useful -- my XY chart is slow as well.
Original comment by [email protected]
on 27 Sep 2011 at 9:18
from achartengine.
Hello, I have just fixed this problem. I will send patch files to Dan during
this weekend. The performance is now perfect :)
Original comment by [email protected]
on 30 Sep 2011 at 2:51
from achartengine.
I wish I could buy you a beer, stevo. Looking forward to this patch!
Original comment by [email protected]
on 30 Sep 2011 at 3:00
from achartengine.
Well, its working for almost all charts now, i just have to fix the last one. I
hope i will patch it soon.
Original comment by [email protected]
on 3 Oct 2011 at 7:13
from achartengine.
So, I found the problem. The range chart put 2 points with the same x value
into the rangeSeries. So it is not possible to use Map with it.
I don't use range chart in my project at all and all the other charts works
fine and fast. So i can send you changed library if you want to.
Original comment by [email protected]
on 6 Oct 2011 at 10:27
from achartengine.
Sweet. I just use a bunch of different XYSeries in my project. That is not
rangeSeries, correct? Users slide the graph view to the left or right and it
gets real stuttery.
Original comment by [email protected]
on 6 Oct 2011 at 2:09
from achartengine.
I'm looking at this today - I'm basically pumping data into the graph in
realtime and rerendering each time. When the chart has to display 3-4 series of
2000-3000 points, the renders are taking forever and getting super choppy.
If i can help find a working solution to the map issue, let me know.
Original comment by [email protected]
on 7 Oct 2011 at 3:20
from achartengine.
Ok so this is my modification of the library.
It is very fast now because it renders only the points which are visible on the
screen.
This modification works great if you put your data to the x axis on the regular
interval.
It means it works great for example for these x axis values
- 1,2,3,4,5,7,8,10 or
-0.2, 0.5, 0.6, 0.9 or
-100, 200, 320, 400, 510
But it is not so good for values like this
-1,2, 100, 102, 1000
So simply, if you put data with approximately same X interval this modification
is for you.
Original comment by [email protected]
on 8 Oct 2011 at 8:52
Attachments:
from achartengine.
The second modification works bit slower then the first one, but it doesn't
depend on the x-axis interval.
The reason for these two modifications is that NavigableMap which would be
great to use is available since android API 9.
Enjoy :)
Original comment by [email protected]
on 8 Oct 2011 at 9:05
Attachments:
from achartengine.
I don't think Dan is going to check in a commented block of code followed by
'holllllaaa' :)
Original comment by [email protected]
on 10 Oct 2011 at 2:02
from achartengine.
:)) i couldn't find this file ... because i have 100 different copies of
aChartEngine, so this was my mark (but i eventually forgot to remove it, sorry)
Original comment by [email protected]
on 10 Oct 2011 at 2:30
from achartengine.
Hi.
I tried to use fast-achartengine but if I pul like 16k of data into TimeChart
Intent intent =
ChartFactory.getTimeChartIntent(context,buildDateDataset(titles, x, values),
renderer,"H:mm:ss");
It doesn't launch the intent... If there are smaller values then it does....
Any suggestions?
Thanks, Toni
Original comment by [email protected]
on 25 Oct 2011 at 4:33
from achartengine.
Sorry, I didn't test all chart types. Actually i don't use TimeChart, i use
LineChart which works very fast even with 100k data.
Original comment by [email protected]
on 25 Oct 2011 at 5:50
from achartengine.
Does anybody have a clue how to implement maptree to timechart?
Thank you
Original comment by [email protected]
on 9 Nov 2011 at 8:48
from achartengine.
Hi,
i am drawing timechart with 10K data but it takes 10-15 seconds to draw chart so how i can make it fast?
Original comment by [email protected]
on 24 Nov 2011 at 6:30
from achartengine.
[deleted comment]
from achartengine.
Here is a patch against trunk for the changes in comment #18.
Original comment by [email protected]
on 27 Nov 2011 at 9:27
Attachments:
from achartengine.
SVN rev. r317 includes the patch.
It is a great work, but please note that it breaks the range bar chart. If
someone gets a chance to take a look and fix it, please do.
Original comment by [email protected]
on 10 Dec 2011 at 2:12
from achartengine.
Original comment by [email protected]
on 10 Dec 2011 at 2:12
- Added labels: Priority-Medium
- Removed labels: Priority-Low
from achartengine.
Good work but there are now issues with clickable areas. If you pan your XY
chart and click on a point on the graph, then the value for this point is not
the correct one.
See: public SeriesSelection getSeriesAndPointForScreenCoordinate(final Point
screenPoint) and more specifically pointIndex
Original comment by [email protected]
on 23 Dec 2011 at 2:50
from achartengine.
Well, this is one of the reasons why I did't make the patch.
Using maps instead of Lists changed a logic little bit.
The problem is that with maps you have always indexes from zero to max screen
value.
Even if you pan your chart and you see lets say values from 10 .. 20, the
indexes are still 0 .. 10.
I have hacked that by holding the leftmost value and i add selected index to
it. So in the above case with values 10 .. 20 i add 10 to selected index. So if
I clicked lets say on 13 column, i get index 3 but i add 10 and 10 + 3 = 13.
Original comment by [email protected]
on 23 Dec 2011 at 3:20
from achartengine.
I think we should fix these issues. Otherwise I will have to drop all these
changes and return to the old Lists that may be slow, but don't bring so many
issues.
Original comment by [email protected]
on 26 Dec 2011 at 2:15
from achartengine.
IMHO there is a simple way to solve this. Instead of using mDataset in
getSeriesAndPointForScreenCoordinate method to retrieve series value of each
clickableArea, it is simplier to retrieve these values directly from these
clickableAreas. 'clickableAreas' must therefore hold values by changing Rect[]
with ClickableArea[] (where ClickableArea is a private class holding Rect and
x/y values). Here's a patch.
Original comment by [email protected]
on 28 Dec 2011 at 9:57
from achartengine.
Original comment by [email protected]
on 28 Dec 2011 at 10:09
Attachments:
from achartengine.
I included the patch, but it was not fun. The patch was for rev. 183 and we are
now at 324.
Original comment by [email protected]
on 4 Jan 2012 at 8:27
from achartengine.
Now there is still the issue with the range bar chart before we can declare
victory on this.
Original comment by [email protected]
on 4 Jan 2012 at 8:28
from achartengine.
Thanks for including my patch. And sorry for the revision mess, it was of
course unintended.
Original comment by [email protected]
on 5 Jan 2012 at 2:10
from achartengine.
Did several fixes here, so we can declare victory on this one.
Hopefully the community will benefit after this collective effort.
Original comment by [email protected]
on 5 Jan 2012 at 8:27
- Changed state: Fixed
from achartengine.
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