a square, really?

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a square, really?

Hi,

 

I'm exploring different emulators (AppleWin on Linux and Mame are winners ATM), and I see a rectangle when the manual (Applesoft ][ Basic Programming Reference) says it's a square.

In FP Basic:

] GR

] COLOR=13

] PLOT 20,20

 

 

In a real iie, would it look like this or be a square?

Thanks!

 

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8:5

The low-resolution graphics mode ("GR") presents 40 pixels horizontally by 48 pixels vertically. It is the same grid as text (40 x 24), but with each character cell split vertically into an upper and lower pixel.

 

Since the standard proportions of a color monitor were 4:3, the proportions of a GR pixel would normally be (4/40):(3/48) or 8:5—in other words, a rectangle 8/5 as wide as it is high—but this could be changed by adjusting the monitor.

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ascpect ratio

It depends on the real or emulated TV/monitor that you are using. 

On a real Apple //e it might be square, but odds are it would not be square. The lo-res pixel shapes can vary in size and shape depending on the color and where they are plotted horizontally. AppleWin actually emulates a TV or a monitor fairly well. The "square" might appear as vertical green bars on a green screen monitor.

https://en.wikipedia.org/wiki/Aspect_ratio

 

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The LORES "bricks" are not

The LORES "bricks" are not square on real hardware. 

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Cool. I thought it might be

Cool. I thought it might be the case, but when it said the plot put a "square" on screen, I got worried. Thanks for the clarification. "bricks", now that I can see!

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transwarp2 wrote:The LORES
transwarp2 wrote:

The LORES "bricks" are not square on real hardware. 

Double LORES is closer to square, but still not a perfect square.

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softwarejanitor wrote
softwarejanitor wrote:
transwarp2 wrote:

The LORES "bricks" are not square on real hardware. 

Double LORES is closer to square, but still not a perfect square.

 

Now you are telling me what square is, and what I see? 

 

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transwarp2 wrote
transwarp2 wrote:
softwarejanitor wrote:
transwarp2 wrote:

The LORES "bricks" are not square on real hardware. 

Double LORES is closer to square, but still not a perfect square.

 

Now you are telling me what square is, and what I see? 

 

Are you trying to tell me that Double LORES blocks are a perfect square?

 

 

 

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