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Is it possible to create clickable points on the charts?
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Joined: 7/28/2009(UTC) Posts: 55  Location: Ukraine, Lviv
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Yes, it's possible. Right now customers that bought 1 year subscription have access to our latest library changes where that functionality implemented. Also we are providing special sample that shows how to use "hit testing". All others developers should wait for next release. Edited by user Wednesday, November 11, 2009 9:48:42 PM(UTC)
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ArtfulBits Team
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Just to make it clear, the feature you are asking about is called a "Hit testing" and it's already available in latest aiCharts library build. You can either become our customer (and get this functionality along with many other useful features) of wait till the next aiCharts release.
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How about zooming? And performance. How fast it will render about 180 000 points, is it allows to render less points and make zoom.
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Hi. There are 2 limitations at this moment:
1. There's no use of 180k points since you are physically able to display not more then your screen's resolution. (For instance, G1 and HTC Magic has 320x480 resolution, obviously it makes sense to show 320 points only)
2. It worth trying to implement you custom data source logic that will compress your 180K points with respect to current chart's zoom factor. We are about to release RRD4Android (ported RRD4J) library that might help you with this task (try googling RRD4J). Please track changes on out site.
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Thank you for your replies.
Is it possible to put two point on chart by clicking on it and Draw vertical lines with filled area between selected points? To make some counts for selected points and area.
Is it possible to select not points but lines in histogram?
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pturchenko wrote:We are about to release RRD4Android (ported RRD4J) library that might help you with this task (try googling RRD4J). Please track changes on out site. RRD4Android will be fully published untill the end of the November 2009. Please keep track on our web site RSS/News. web page about RRD already available: http://www.artfulbits.com/Android/rrd4a.aspx |
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Yes that's possible with couple custom logic tricks.
1. Catch touch action on the ChartView
2. Convert touch coordinate to local chart's coordinate.
3. Set series type as Area.
4. Add chart point with this coordinate.
5. Continue actions 1-4 for further actions.
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The HitTest sample uses pie chart as example, does it work the same way for making data-points clickable in a line chart?
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Hi,
No, it doesn't work. We don't implement all hit-test features yet.
Best regards, |
Volodymyr Baydalka
Andriod development and support team |
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Baydalka Volodymyr wrote:Hi,
No, it doesn't work. We don't implement all hit-test features yet.
Best regards, Hi, When can we expect hit-test feature for line chart ?
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Rank: Member
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Hi,
We have improved hit-test feature at this moment :
- added hit-testing for legends, titles, areas and axes
- added hit-testing for point and line types (by the circle around point)
We haven't decided yet if we will implement the hit-testing by a line (there is too hard to hit the thin line). However if you really need this we may implement this feature for you by your request.
Best regards, |
Volodymyr Baydalka
Andriod development and support team |
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Rank: Member
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Joined: 11/19/2009(UTC)
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Baydalka Volodymyr wrote:Hi,
We have improved hit-test feature at this moment :
- added hit-testing for legends, titles, areas and axes
- added hit-testing for point and line types (by the circle around point)
We haven't decided yet if we will implement the hit-testing by a line (there is too hard to hit the thin line). However if you really need this we may implement this feature for you by your request.
Best regards, I don't need hit-test for the whole line, just for the circle data-points(marker). If you have implemented that, it would be great.
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