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I have to draw vertical straight line and horizontal curved line. Here is the requirements,

  • Before two lines intersect they should draw as dashed lines
  • After two lines intersect they should draw as solid lines
  • Both the lines should be move by clicking mouse pointer
  • And background color of lines intersect area should be white, other places should be gray color

I could draw the vertical line using two VerticalLineAnnotations however I don’t know how to draw curved line and implement above requirements. Please refer the attached sample image file.


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There is a solution to this without the dashed line at this question Draw Surface Background Color.

After discussion with the team the selective dash (based on threshold) is not possible without a CustomRenderableSeries, but everything else is.

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