We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
Index › Programming Questions & Help › Integration › types mismatch using processing & eclipse
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
types mismatch using processing & eclipse (Read 807 times)
lolek09
types mismatch using processing & eclipse
Feb 5th, 2010, 1:59pm  
Hi there, i am new to Processing and experienced a strange problem. I've tried to write processing code in Eclipse (from the 3D example):
Code:
camera(30.0, mouseY, 220.0, // eyeX, eyeY, eyeZ
0.0, 0.0, 0.0, // centerX, centerY, centerZ
0.0, 1.0, 0.0); // upX, upY, upZ

Got an error:
The method camera(float, float, float, float, float, float, float, float, float) in the type PApplet is not applicable for the arguments (void, int, double, double, double, double, double, double, double)
It can be easily solved:
Code:
camera((float)30.0, (float)mouseY, (float)220.0, // eyeX, eyeY, eyeZ
(float)0.0, (float)0.0, (float)0.0, // centerX, centerY, centerZ
(float)0.0, (float)1.0, (float)0.0); // upX, upY, upZ

My question is why do i have to cast types while writing in eclipse? In processing IDE the first code works well.
Back to top
 
 
eskimoblood
Re: types mismatch using processing & eclipse
Reply #1 - Feb 5th, 2010, 2:22pm  
The camera() method expected float as parameter but 220.0 is an double in  java. In processing there are happen some hidden things when you start your sketch, converting 220.0 into 220.0f for example. So in eclipse you ever have to add an 'f' add the end of your floating point number to get JAVA know its an float and not an double.
Back to top
 
Andreas Köberle {eskimoblood}
222550793  
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›