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To get the postion of a point in Graph


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How to find the position of a point (pixel possition in graph) in java, if x and y values are given ? I need to attach images using annotation. For that top and left positions need to be given. These images should be at the end of Gannt bar according to the X values. So its left position is dynamic. Please help me in finding this. Thanks in advance.

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  • 2 weeks later...

Hi,

You can use the valueToPixel method. This method convert a logical chart value to its position in pixels for a selected axis.

chart1.getAxisX().valueToPixel(double dValue)

When positioning annotation objects in the chart area, you may want to convert a particular position in the chart area given in axis units to screen coordinates (pixels). Therefore, this method is particularly useful for this purpose.

Regards,

Randy Jimenez

 

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