Jsvx - Revision history

ShaneDeMeulenaere: /* Draw Something! */

2015-04-09T19:55:29Z

‎Draw Something!

ShaneDeMeulenaere: /* Putting it all Together */

2015-04-09T19:34:36Z

‎Putting it all Together

ShaneDeMeulenaere: /* Draw Something! */

2015-04-09T19:09:40Z

‎Draw Something!

ShaneDeMeulenaere: /* Draw Something! */

2015-04-09T19:08:00Z

‎Draw Something!

@@ Line 144: / Line 144: @@
 [[File:jsvx_circle_robot.png]]
-Notice how the vx_buffer_add_back call is acting like a vx_chain. First, we rotate our coordinate frame based on the current clock time. Then we move down the Y-axis 2 units. Then we draw a robot, which by default points to the right. And since our rotation is going clockwise, it appears to be driving around the yellow circle. Try playing around with drawing other objects with different movement patterns. Can you add another robot that drives faster? Can you make a robot that drives in reverse? There are other objects in the jsvx folder, take a look at the vxo_*.h header files to see their interfaces. The possibilities here are endless. Also note that by clicking on the buffer names in the upper left-hand corner, you can turn buffers on and off.
+Notice how the vx_buffer_add_back call is acting like a vx_chain, and how the final NULL acts as a sentinel value for the chain of jsvx objects. Here's how the chain works: First, we rotate our coordinate frame based on the current clock time. Then we move down the Y-axis 2 units. Then we draw a robot, which by default points to the right. And since our rotation is going clockwise, it appears to be driving around the yellow circle. Try playing around with drawing other objects with different movement patterns. Can you add another robot that drives faster? Can you make a robot that drives in reverse? There are other objects in the jsvx folder, take a look at the vxo_*.h header files to see their interfaces. The possibilities here are endless. Also note that by clicking on the buffer names in the upper left-hand corner, you can turn buffers on and off.
 == More advanced features ==

← Older revision		Revision as of 19:34, 9 April 2015
Line 108:		Line 108:

	[[File:jsvx_blank.png]]		[[File:jsvx_blank.png]]
		+
		+	Troubleshooting
		+	If you get a screen that says something like "Unspecified Error". Make sure that the webvx_html_path is correct for your setup.

	== Draw Something! ==		== Draw Something! ==

@@ Line 138: / Line 138: @@
           '''usleep(50 * 1000);'''
   };
 Notice how the vx_buffer_add_back call is acting like a vx_chain. First, we rotate our coordinate frame based on the current clock time. Then we move down the Y-axis 2 units. Then we draw a robot, which by default points to the right. And since our rotation is going clockwise, it appears to be driving around the yellow circle. Try playing around with drawing other objects with different movement patterns. Can you add another robot that drives faster? Can you make a robot that drives in reverse? There are other objects in the jsvx folder, take a look at the vxo_*.h header files to see their interfaces. The possibilities here are endless. Also note that by clicking on the buffer names in the upper left-hand corner, you can turn buffers on and off.
 == More advanced features ==

@@ Line 139: / Line 139: @@
   };
-Notice how the vx_buffer_add_back call is acting like a vx_chain. First, we rotate our coordinate frame based on the current clock time. Then we move down the Y-axis 2 units. Then we draw a robot, which by default points to the right. And since our rotation is going clockwise, it appears to be driving around the yellow circle. Try playing around with drawing other objects with different movement patterns. Can you add another robot that drives faster? Can you make a robot that drives in reverse? There are other objects in the jsvx folder, take a look at the vxo_*.h header files to see their interfaces. The possibilities here are endless.
+Notice how the vx_buffer_add_back call is acting like a vx_chain. First, we rotate our coordinate frame based on the current clock time. Then we move down the Y-axis 2 units. Then we draw a robot, which by default points to the right. And since our rotation is going clockwise, it appears to be driving around the yellow circle. Try playing around with drawing other objects with different movement patterns. Can you add another robot that drives faster? Can you make a robot that drives in reverse? There are other objects in the jsvx folder, take a look at the vxo_*.h header files to see their interfaces. The possibilities here are endless. Also note that by clicking on the buffer names in the upper left-hand corner, you can turn buffers on and off.
 == More advanced features ==