Creating Grid of Rectangles Using a For Loop

nqj

Hi,

 

I am trying to create an array of 24x2 rectangles in a new window. I can manually create these using the JSL commands for the graph box but I know that it can be done using a for loop which would be much quicker. I only need the rectangles to be two dimensions for now, and here is the following code that I was attempting to implement:

y1 = 5;
y2 = 10;
win = New Window("Spine",
		gb = Graph Box(
			Frame Size(1000,1000),
		)
	);
	
For(i = 0, i<24, i++,
	Rect(5,y1,10,y2);
	y1 = y2+1;
	y2 = y1+5;
	gb<<reshow;
);

but it doesn't seem to be working nor throwing me any errors. Thanks for any help.

 

txnelson

The Graph Box() is dynamic and when coupled with your code, everytime it attemps to refresh the screen, your y values are increasing in size.  See the code below for a fix for the issue

Names Default To Here( 1 );
win = New Window( "Spine",
	gb = Graph Box(
		Frame Size( 1000, 1000 ),
		Y Scale( 0, 500 ),
		X Scale( 0, 500 ),
		For( i = 1, i < 25, i++,
			If( i == 1,
				y1 = 5;
				y2 = 0;
			);
			Rect( 45, y1, 50, y2 );
			Rect( 50, y1, 55, y2 );
			y2 = y1 + 1;
			y1 = y1 + 6;
				
		)
	)
);