path annotation overrides xValue and yValue

[lqbwebParticipant]

Hello,
If I have a simple path annotation like: “M 0,0 L 10,0 L 10,10 L 0,10 L 0,0” it will not be relative to the xValue and yValue position. Not even the offset specified is granted.

Basically, I want to place a “cross” on a specific position of a line. Any way?

Thanks

[Peter StoevKeymaster]

Hi lqbweb,

To define annotation, see: http://www.jqwidgets.com/jquery-widgets-demo/demos/jqxchart/javascript_chart_annotations.htm?arctic and follow the same approach in your Chart’s page.

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com/

[lqbwebParticipant]

I know, I am following that example…. What I am reporting you is what I consider a bug.

Again, it works as expected, except if it is a Path annotation. In the example you tell me it is only a rect annotation.

[Peter StoevKeymaster]

Hi lqbweb,

It is not a bug or at least not in jQWidgets Chart. When you set it as PATH, your PATH’s points will not be automatically adjusted to the xValue/yValue. So, you have to adjust the path’s points yourself or use the approach from the Chart’s example.

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com/

[lqbwebParticipant]

ok, with that example I can not place a “cross” as a symbol.

Maybe my requirements are a bit unusual, not sure, but in general I had to work a lot with annotations, and I am finding it a bit painful, partially because of the lack of documentation about it.

My suggestions and improvements for the annotations:

1) If you have different types of annotations, then the configuration should be in different types of containers. It does not make sense having a parameter “radius” at the same level as “width” or “height”.

2) An annotation type called “line”, I would expect to have an attribute like “length” or “x1, y1, x2, y2”, but still, it seems that when I apply a “width” to a “line”, it has somehow an effect, indeed, I see a rectangle instead of a line :|. Sorry, this part, I find it very confusing.

3) If we are meant to use the annotations inside the grid area, why the path annotation works outside this grid area? The design principles sound a bit inconsistent.

4) all position and size attributes should have some sort of units. ie: xValue=1px would refer to an absolute position, while xValue=1, would just refer to the coordinate where x=1. The same principle should apply for the offsets, width, height, etc. width=50px, would refer to an absolute width of 50 pixels, while width=50, could refer to a width of 50 increments on the “x” axis.

In general, I find the JqWidgets platform absolutely great. Please take this only in a constructive manner. In the end, our application has complex requirements on charts, and I am very close to fulfill all of them with jqxChart.

Thanks very much for your support, which I also find it to be great.

[Peter StoevKeymaster]

Hi lqbweb,

Thank you for the suggestions. We will add work items and will consider them for future releases.

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com/

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