Draw Floating Point Numbers to TV Using Graphics Object?

Branmuffin Industries

I am using the FloatMath.spin object to calculate floating point numbers.
I am using the Graphics, Numbers, and TV Object to draw a video out.
When I want to draw text to the Screen, I use:

gr.text(-90,70, String("DMC"))

or numbers to the screen, I use:

gr.text( 60, 90, Num.ToStr( stored[noparse][[/noparse]Temp], Num#DDEC))

When I want to draw Floating Point Numbers to the screen,
I want the screen to print values from 0.00 to 4.25, showing the decimal.
I can calculate them using:

f.FAdd( 2.1 , 3.4 )

but I have no way to convert it to a string for sending to the graphics object.

Can anyone help me out? Do I need to write a f.ToStr() function into the FloatMath object?


Thanks!

-Ryan Brandys

Harrison.

Take a look at the FloatString.spin object provided with the Propeller Tool. It contains floating point to string conversion functions that you are looking for.

f  : "FloatMath"
fs : "FloatString"

----

gr.text(60, 90, fs.FloatToString(f.FAdd(2.1, 3.4)))

Harrison

deSilva

FloatMath is a "feasibility study" and of use only for the least demanding applications, and the rare cases where you have to trade speed for a COG..
You normally use Float32, which is about 200 times faster..
However you need a trick to use Float32 and FloatString in harmony.. See the corresponding threads and there is also a first Q&A entry on this matter...

Branmuffin Industries

I tried adding a FloatString object and now my top level object will not compile. it tells me "object exceeds runtime memory limit by 153 longs"

When I take FloatString back out, recompile myprogram, and look at the memory table, I have 6,261 longs free. My program is very small.

Since FloatString is only 368 longs, why does it tell me I am out of memory?

Thanks.

deSilva

You most likely have a funny _stack setting...