Using 2 lines timestamp to label a sampling point.

[DavidLee]

Hello,

I want to timestamp to label a sampling point in a graph , the timestamp label should have two lines : the first line displays time string , the second line displays date string . Does cvi has such a function ?


David

[RobertoBozzolo]

On a graph yu can use PlotText to write some text in the plot area. PlotText accepts x- and y-position as parameters so you can place your text everywhere in the plot area.

[DavidLee]

Thanks , Roberto.

David

[DavidLee]

Hi Roberto,


Sorry , I can not write the date string on the x-axis , the syntext is as :"PlotText (panelHandle, ctrlID, xCoor, tempRandNum[i], date, VAL_APP_META_FONT, VAL_BLACK, VAL_TRANSPARENT); i++; xCoor ++;" , because the text string are all wrote on the curve points . It seems that just to use the InsertAxisItem()to do this . Please advise me how to achieve the way as your hint ? By the way , if can write time string on the x-axis , how to write data string below the time string on the x-axis? Thanks.


David

[Wendy L]

Hello David,

If you just want to change the label of the x axis to a string, then follow the procedure mentioned in this KnowledgeBase. The label on the bottom x axis cannot span multiple lines. Instead, you can label both the top and the bottom axis (one with the time strings and one with the data strings) and then display both.

Hope that helps.