lines are not displayed in some devices in Corona Simulator

[Sheldonopolis]

Hi,
In my project, I create several circles and draw lines between them (with display.newLine), but when I simulates the project in Corona Simulator, the lines are not visible in some devices, Can anyone please help?
 
The minimum code to reproduce the problem is like:

local radius = 20 local circles = {} for i = 1, 5 do circles[i] = {} for j = 1, 8 do circles[i][j] = display.newCircle(100 \* j + (j - 0.5) \* 2 \* radius, 100 \* i + (i - 0.5) \* 2 \* radius, radius) end end for i = 1, 5 do for j = 1, 7 do display.newLine(circles[i][j].x, circles[i][j].y, circles[i][j + 1].x, circles[i][j + 1].y) end end

The screenshots are attached.

iphone6:

,

Samsung galaxy s5:

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nokia lumia 920:

[XeduR]

That has to do with Corona’s dynamic scaling most likely.

In your config.lua, what width and height have you defined? Most likely what is happening is that you’ve defined a larger content area, which then leads to downscaling the content for smaller devices. Since you have not given the lines a width, i.e. it defaults to 1px, then downscaling from 1px to less than 0.5px probably results in the lines not showing at all.

i.e. give your lines a larger width and/or look at your content area settings.

[Sheldonopolis]

@XeduR

That has to do with Corona’s dynamic scaling most likely.
 
In your config.lua, what width and height have you defined? Most likely what is happening is that you’ve defined a larger content area, which then leads to downscaling the content for smaller devices. Since you have not given the lines a width, i.e. it defaults to 1px, then downscaling from 1px to less than 0.5px probably results in the lines not showing at all.
 
i.e. give your lines a larger width and/or look at your content area settings.

 
It is exactly like what you said. The lines are displaying correctly with a larger stroke width.

Thank you so much.