Input text box to change scale limits

im new using processing graph data arduino.  i using aurdino in pid mode control heating element brew stand.  i using pid front found here http://www.arduino.cc/cgi-bin/yabb2/yabb.pl?num=1243714052.

i in midst of modifiying graph more temp sensors.  what add 2 text boxes can input min , max scale can change scale on fly during brew process target different temperatures.

the pid processing front end uses controlp5 library.  is there easy way this.  i tried following

code: [select]

inscaleminfield=controlp5.addtextfield("min scale", 80,100,60,20);
 inscalemin= inscaleminfield;  //inscalemin called earlier in code , sets
min on y axis

but gives me error cannot convert textfield float.  i can post rest of code if necessary quite long.

thanks in advance.

Arduino Forum > Forum 2005-2010 (read only) > Software > Interfacing > Input text box to change scale limits

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