String[] a = split(receivedString, ',');
println(a[0]);
println(a[1]);
println(a[2]);
println(a[3]);
println(a[4]);
println(a[5]);
println(a[6]);
int val1 = Integer.parseInt(a[0].trim());
int val2 = Integer.parseInt(a[1].trim());
int val3 = Integer.parseInt(a[2].trim());
int val4 = Integer.parseInt(a[3].trim());
int val5 = Integer.parseInt(a[4].trim());
int val6 = Integer.parseInt(a[5].trim());
int val7 = Integer.parseInt(a[6].trim());
XChart.push("incoming",val1);
YChart.push("incoming",val2);
ZChart.push("incoming",val3);
GXChart.push("incoming",val4);
GYChart.push("incoming",val5);
GZChart.push("incoming",val6);
TempChart.push("incoming",val7);
As you can see I have trims but when I try to trim decimally numbers I can’t. I tried to round them but using two local variables is impossible please help. I’m also editing in Java(ProcessingIDE).
Please format the start of your code correctly… I believe the Java trim method does not belong specifically to processing so maybe try your question on Stack Overflow
If it is a “string float” then parse it to a “number float” and then you can cast it to a “number int” (you will lose decimal points).
String a = " 1.2345 \n"; //Added spaces and a \n so there was something to trim.
println(float(a.trim()));
println(float(trim(a)));
println(int(float(a.trim())));
println(int(float(trim(a))));
Same as:
String a = " 1.2345 \n";
println(parseFloat(a.trim()));
println(parseFloat(trim(a)));
println(parseInt(PApplet.parseFloat(a.trim())));
println(parseInt(PApplet.parseFloat(trim(a))));
I tried the code that you wrote thanks for trying but it didn’t help I have to send multiple values from arduino to Processing and that code doesn’t work when I try that. If you can edit the code I owe you
By the way data’s are like: -0.2132143214321,109.123214,-30.3214321
This is your project; I will only provide guidance.
I modified your String to have a line feed at the end; I assume you are using println() on the Arduino side and it will send this and trim() will remove that.
You are trying to parse a float into an int and you will get a:
NumberFormatException: For input string: “-0.2132143214321”
You must parse your float into a float.
I also recommend that you trim the received String; it is not necessary for each element of the array unless you have whitespace characters in there.
Code to show how I work through a problem:
String receivedString = "-0.2132143214321,109.123214,-30.3214321\n";
String[] a = split(receivedString, ','); // Try trimming string here
printArray(a);
println(a[2]);
// This will not work
int val1 = Integer.parseInt(a[2].trim()); // You should be parsing into a float here!
println (val1);
// You should be parsing into a float
// You can modify above and add here
It seems to me that you are trying to read a “String representing a floating-point-number (fpn)” as an “int” in one step. That is never going to work well, you need to convert the string to a float then convert the float to an int by rounding like this
String receivedString = "-0.2132143214321, 109.123214, -30.3214321, -0.96743, 3.14159";
println("Inpit:\n" + receivedString);
String[] a = split(receivedString, ','); // Get an array of fpn(s) as Strings
println("Array Values:");
float[] f = new float[a.length];
int[] v = new int[a.length];
for(int i = 0; i < a.length; i++){
f[i] = Float.parseFloat(a[i].trim()); // convert String to float
v[i] = round((float)f[i]); // convert float to int
println(f[i] + "\t\t" + v[i]);
}
Thank you for the solution of the trimming but it turns out there is something else with this code as you can see I created values as Val1 for example and I defined them as “Integer.parseInt(a[6].trim());” I have to have the numbers like that so I can push them on chart
